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Table of Contents

Chapter 1 - Overview About Hardy Manuals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1

Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
WAVERSAVER® - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
C2® Calibration- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
IT®- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
Excitation Monitor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Digital Volt Meter (DVM) - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Return to Zero Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Weighing System Tests - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Secure Memory Module (SMM) - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Set PointRelays - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Serial Port - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Hardy Link LAN - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Remote Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Auto Zero Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Output Device Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
Analog Output (-B1) - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
Binary Coded Decimal (BCD) Output (-B2) - - - - - - - - - - - - - - - - 1-5
Binary Coded Decimal (BCD) Output (-B5) - - - - - - - - - - - - - - - - 1-5
BCD Single Termination Card (-B6) - - - - - - - - - - - - - - - - - - - - 1-5
BCD Quad Termination Card (-B7) - - - - - - - - - - - - - - - - - - - - 1-5
Remote I/O (RIO) Interface to the Allen-Bradley Network (-B8) - - - - - - 1-5
Binary Coded Decimal (BCD) Output (-B9) - - - - - - - - - - - - - - - - 1-5
PROFIBUS Interface Option (-B12) - - - - - - - - - - - - - - - - - - - - 1-6
Dynamic Data Exchange (DDE) (-B14) - - - - - - - - - - - - - - - - - - 1-6
Control Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
Peak Hold (-C1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
Rate-of-Change (ROC) (-C2) - - - - - - - - - - - - - - - - - - - - - - - 1-6
Set Point Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
TTL(Transistor - Transistor Logic) Level Output (-D1) - - - - - - - - - - - 1-6
External Setpoint Relays Card (-D2) - - - - - - - - - - - - - - - - - - - - 1-6
External Setpoint Relays Card (-D3) - - - - - - - - - - - - - - - - - - - - 1-7
Miscellaneous Options- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-7
240 VAC 50/60 Hz Input Voltage (-E2) - - - - - - - - - - - - - - - - - - 1-7
NIST/NTEP Certification Mode Kit (-E3 except for -F4 wall mount) - - - - 1-7
Portable Display and Keypad (-E4) - - - - - - - - - - - - - - - - - - - - 1-7
Intrinsic Barrier Assembly (-F1, -F3 thru -F7) - - - - - - - - - - - - - - - 1-7
Interpreting the Model Code Number - - - - - - - - - - - - - - - - - - - - - - 1-7
Model Code Breakdown- - - - - - - - - - - - - - - - - - - - - - - - - - 1-7

Chapter 2 - Specifica- HI 2151/30WC Specifications for a Standard Instrument- - - - - - - - - - - - - - - 2-1

tions Conversion Rate- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Resolution - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Excitation Voltage- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Averages - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Input - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Display Increments (Graduations) - - - - - - - - - - - - - - - - - - - - - - - 2-1
Key Pad - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Standard Setpoint Relays - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Non-Linearity - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Maximum Zero Tolerance - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
WAVERSAVER® - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Excitation Monitor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Digital Voltmeter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Power and Utility Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2

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Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Frequency - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Common Mode Voltage Range - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Common Mode Rejection - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Environmental Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Operating Temperature Range - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Storage Temperature Range - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Temperature Coefficien - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Humidity Range - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Physical Characteristics- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Panel Mount (Model # HI 2151/30WC) - - - - - - - - - - - - - - - - - - - - - 2-2
Wall Mount Model HI 2151/30WC-WS - - - - - - - - - - - - - - - - - - - - - 2-3
Remote Mount Model HI 2151/30WC-RM - - - - - - - - - - - - - - - - - - - 2-3
Blind Remote Mount HI 2151/30WC-BR - - - - - - - - - - - - - - - - - - - - 2-4
Portable Display HI 2151/30XX-E4 (use with HI 2151/30WC-BR) - - - - - - - - 2-4
IT® Junction Box HI 215IT-SS or PS Series - - - - - - - - - - - - - - - - - - 2-4
IT® Junction Box HI 215IT-FG Series - - - - - - - - - - - - - - - - - - - - - 2-5
Approvals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Serial Communications- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Bi-Directional Communications - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Optional Equipment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6
Analog Output (-B1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6
Binary Coded Decimal (BCD) (-B2) - - - - - - - - - - - - - - - - - - - - - - 2-6
Binary Coded Decimal (BCD) (-B5) - - - - - - - - - - - - - - - - - - - - - - 2-7
BCD Single Termination Board (-B6) - - - - - - - - - - - - - - - - - - - - - - 2-7
BCD Quad Termination Board (-B7) - - - - - - - - - - - - - - - - - - - - - - 2-7
Allen-Bradley Remote I/O Interface (-B8) - - - - - - - - - - - - - - - - - - - - 2-7
Binary Coded Decimal (BCD) (-B9) - - - - - - - - - - - - - - - - - - - - - - 2-8
Profibus I/O Interface (-B12) - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8
Peak Hold (-C1) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8
Rate of Change (ROC) (-C2) - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8
Totalizer (-C3) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-9
Six TTL Level Outputs (-D1) - - - - - - - - - - - - - - - - - - - - - - - - - - 2-9
Six External Solid State, Set Point Relays (-D2 & -D3) - - - - - - - - - - - - - 2-9

Chapter 3 -Installation Unpacking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1

Mechanical Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
Installing the HI 2151/30WC in a Panel - - - - - - - - - - - - - - - - - - - - - 3-3
Panel Cutout Specifications - - - - - - - - - - - - - - - - - - - - - - - - 3-3
Installing the HI 2151/30WC Panel Mount - - - - - - - - - - - - - - - - - 3-3
Installing the HI 2151/30 Remote Mount Model - - - - - - - - - - - - - - - 3-5
Install the Front Panel - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
Installation of the Instrument Enclosure - - - - - - - - - - - - - - - - 3-6
Installing the HI 2151/30WC-BR Blind Remote Model - - - - - - - - - - - 3-7
Installing the HI 2151/30 Wall Mount Model - - - - - - - - - - - - - - - - 3-7
Electrical Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-9
Cabling and Interconnecting - - - - - - - - - - - - - - - - - - - - - - - - - - 3-10
Recommended Installation Procedures - - - - - - - - - - - - - - - - - - - 3-10
Input Power Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-10
Output Setpoint Relay Wiring - - - - - - - - - - - - - - - - - - - - - - - 3-11
Optional Relays or TTL Level Outputs - - - - - - - - - - - - - - - - - - - 3-11
J3 Serial Port Wiring- - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
Remote Functions Wiring - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
Load Cell/Point Connections (J1) - - - - - - - - - - - - - - - - - - - - - - - - 3-13
About Load Cell Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
C2 Load Cell Connections (J1) (See Fig. 3-9) - - - - - - - - - - - - - - 3-14

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Non C2 Load Cell Connections (J1) (See Fig. 3-10) - - - - - - - - - - 3-15

Output Option Board Installation Procedures - - - - - - - - - - - - - - - - - - - - 3-16
Options Cabling and Interconnect - - - - - - - - - - - - - - - - - - - - - - - 3-17
Analog Output Option -B1 (See Fig. 3-12) - - - - - - - - - - - - - - - - - 3-17
BCD Option Board Installation Procedures -B2, -B5, -B9 - - - - - - - - - - 3-18
BCD Terminator Boards - B6, - B7 - - - - - - - - - - - - - - - - - - - - 3-20
BCD Termination Board Installation Procedures (See Fig. 3-14) - - - - 3-20
Allen-Bradley RIO Interface Option -B8 - - - - - - - - - - - - - - - - - - 3-21
Profibus Interface Option -B12 - - - - - - - - - - - - - - - - - - - - - - 3-22
Dynamic Data Exchange (DDE) I/O Server -B14 - - - - - - - - - - - - - - 3-23
HI 215IT Series Junction Boxes - - - - - - - - - - - - - - - - - - - - - - 3-23
Set Point Relay Option Board Installation -D2 - - - - - - - - - - - - - - - - - 3-23
Profibus Interface Card Option Wiring Diagram - - - - - - - - - - - - - - - - 3-25
Installation of the Secure Memory Module - - - - - - - - - - - - - - - - - - - - - 3-25

Chapter 4 - Configura- Standard RS-232C/RS422/485 Configuration Procedures. - - - - - - - - - - - - - - 4-1

tion Setting the Jumpers - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
Analog Output Option Card Configuration Procedures -B1- - - - - - - - - - - - - - 4-4
About the Analog Output Card Option - - - - - - - - - - - - - - - - - - - - - 4-4
Setting the Jumpers - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-4
Disassembling the rear panel and setting jumpers - - - - - - - - - - - - 4-4
Reassembling Rear Panel - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
Front Panel Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - 4-5
Analog Card Adjustment - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
Voltage- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
Current - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
Parallel BCD Board Print Configuration Procedures -B2, -B5, -B9 - - - - - - - - - - 4-6
About the BCD Board Print Output Signal - - - - - - - - - - - - - - - - - - - 4-6
Jumper Location. (See Fig. 4-7) - - - - - - - - - - - - - - - - - - - - - - 4-6
Jumper Settings (See Fig. 4-8) - - - - - - - - - - - - - - - - - - - - - - - 4-7
Calibration Configuration Procedures When Security Code is not Available - - - - - 4-7
Dip Switch Location (See Fig. 4-9) - - - - - - - - - - - - - - - - - - - - - - - 4-7
Auto Zero Tolerancing Configuration Procedures - - - - - - - - - - - - - - - - - - 4-8
About Auto Zero Tolerancing - - - - - - - - - - - - - - - - - - - - - - - - - 4-8
Dip Switch Location (See Fig. 4-10) - - - - - - - - - - - - - - - - - - - - 4-8
Dip Switch Setting - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8
Configuring Peak Hold Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-8
About Configuring Peak Hold - - - - - - - - - - - - - - - - - - - - - - - - - 4-8
Configuring Multidrop S3-1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9
Configuring Serial S3-3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9
Configuring Option S3-4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9
Configuring Set Point S3-5- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9
Set Point S3-6 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-9
Configuring Lock S3-7- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-10
Configuring the Power & Relay Board Dip Switches S2 (See Fig. 4-12) - - - - - - - 4-10

Chapter 5 - Setup Keypad Functions (See Fig. 5-1) - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1

Zero - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Tare - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Print - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2
—/Test/Clr - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2
1/Tare Val - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2
2/Status/Bar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2
3/Lb Kg- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3
4/- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3
5/¬ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3
6/Set Pt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3

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7/Option - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3
8/Cal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4
9/¯ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4
0/Exit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4
Enter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4
Block Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-5
RS-232C, RS 422/485 Bi-directional Serial Port Setup Procedures - - - - - - - - - - 5-5
Bar Graph Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6
About Bar Graph Setup- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6
BCD Menu Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7
About BCD Communication (See Section 4 for Configuration Procedures) - - - - 5-7
BCD Print- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7
Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7
Serial Port Menu Setup Procedure (See Chapter 4 for Configuration Procedures) - - - 5-9
Serial Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10
Analog Output Setup Procedures (Option) - - - - - - - - - - - - - - - - - - - - - - 5-12
About Analog Output (See Chapter 4 for Configuration Procedures) - - - - - - - 5-12
Analog Output Menu Setup Procedures - - - - - - - - - - - - - - - - - - - - - 5-13
Setting the Rate of Change Procedures - - - - - - - - - - - - - - - - - - - - - - - 5-13
TOTAL Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-14
Set Up for Profibus Interface Card Option -B12 - - - - - - - - - - - - - - - - - - - 5-14
Allen-Bradley Remote I/O Option -B8- - - - - - - - - - - - - - - - - - - - - - - - 5-14

Chapter 6 - Calibration Pre-Calibration Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1

Mechanical Check Procedures - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
Electrical Check Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - 6-2
Fourteen Segment Display - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-4
Combination Status Indicator/Bar-Graph LEDs - - - - - - - - - - - - - - - - - 6-4
Load Check - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6
Calibration Setup Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6
The Calibration Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6
Setting the Unit of Measure. (UNIT) Pounds (Lb) or Kilograms (Gr) - - - - - - - 6-7
Setting the Standard Decimal Point (DECPNT) - - - - - - - - - - - - - - - - - 6-7
Setting the Total Decimal Point (Option -C6) (TOT DP) - - - - - - - - - - - - - 6-7
Setting the Motion Tolerance Value (MOTION) - - - - - - - - - - - - - - - - - 6-8
Setting the Graduation Size (GRAD) - - - - - - - - - - - - - - - - - - - - - - 6-8
Setting the Zero Tolerance (0 TOL) - - - - - - - - - - - - - - - - - - - - - - - 6-9
Setting The Auto Zero Tolerance (A0 TOT) - - - - - - - - - - - - - - - - - - - 6-9
Setting the Number of Readings Averaged (AVRAGE) - - - - - - - - - - - - - 6-10
Setting the Scale Capacity (SC CAP) - - - - - - - - - - - - - - - - - - - - - - 6-10
WAVERSAVER® (WVRSVR) - - - - - - - - - - - - - - - - - - - - - - - - 6-11
This ends the Calibration Setup Process - - - - - - - - - - - - - - - - - - - - - 6-11
Calibration Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-11
C2® Second Generation Calibration Procedures - - - - - - - - - - - - - - - - - 6-12
End of C2 Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-13
Hard Calibration Procedures (HDCAL) - - - - - - - - - - - - - - - - - - - - - 6-13
Selecting the Hard Calibration Sub-Menu - - - - - - - - - - - - - - - - - - 6-13
Setting the Zero Calibration Value - - - - - - - - - - - - - - - - - - - - - 6-13
Setting the Span Calibration Value - - - - - - - - - - - - - - - - - - - - - 6-14
The Return (RETURN) Display - - - - - - - - - - - - - - - - - - - - - - 6-14
Checking for Mechanical Problems - - - - - - - - - - - - - - - - - - - - - 6-14
Hard Calibration Self Test Procedures (Traditional Method Using Test Weights) - 6-15
Perform the Hard Calibration Self Test - - - - - - - - - - - - - - - - - - - 6-15
Soft Calibration Procedures for Single Load Cell/Point Systems - - - - - - - - - 6-15
About Soft Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-15
Selecting the Soft Calibration Sub-Menu - - - - - - - - - - - - - - - - - - 6-16
Setting Sensitivity Values - - - - - - - - - - - - - - - - - - - - - - - - - 6-16

iv
 Table of Contents

Setting the Scale Range (RANGE) - - - - - - - - - - - - - - - - - - - - - 6-16

Setting the Reference Point - - - - - - - - - - - - - - - - - - - - - - - - 6-17
Using the Return (RETURN) Function - - - - - - - - - - - - - - - - - - - 6-17
End of the Soft Calibration Process - - - - - - - - - - - - - - - - - - - - 6-17
Soft Calibration Self Test Process - - - - - - - - - - - - - - - - - - - - - - - 6-17
Performing the Self Test- - - - - - - - - - - - - - - - - - - - - - - - - - 6-17
INTEGRATED TECHNICIAN (IT®) - - - - - - - - - - - - - - - - - - - - - - - 6-18
Setting Resistance Baseline for Excitation Monitor - - - - - - - - - - - - - - - 6-18
Quick C2® Calibration Procedures - - - - - - - - - - - - - - - - - - - - - - - - - 6-18
About Quick C2 Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - 6-18
Procedures to Restore Calibration Parameters - - - - - - - - - - - - - - - - - - - - 6-19
Before Clearing Memory - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-19
Clear Controller Memory - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-19
Restoring Calibration When Changing Decimal Points - - - - - - - - - - - - - 6-20
Restoring Decimal Points - - - - - - - - - - - - - - - - - - - - - - - - - 6-20

Chapter 7 - Operation Description of Front Panel (See Fig. 7-1) - - - - - - - - - - - - - - - - - - - - - - 7-1

Process Weighing Function Buttons - - - - - - - - - - - - - - - - - - - - - - 7-1
Operator Displays - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-2
Instrument Operation Overview - - - - - - - - - - - - - - - - - - - - - - - - - - 7-2
Option Menus and Option Parameters- - - - - - - - - - - - - - - - - - - - - - - - 7-3
Option Boards - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3
General Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3
Set Points - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-4
About Set Points - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-4
Set Point Limits - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-4
Dead Band Limits - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-4
Three General Rules for Setpoints - - - - - - - - - - - - - - - - - - - - - - - 7-5
Preact Limits (See Fig. 7-3) - - - - - - - - - - - - - - - - - - - - - - - - - - 7-5
Entering Set Points - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-5
About the Set Point Menu - - - - - - - - - - - - - - - - - - - - - - - - - 7-5
Entering Set Point Procedures - - - - - - - - - - - - - - - - - - - - - - - 7-6
Entering Dead Band Tolerance Procedures - - - - - - - - - - - - - - - - - 7-6
Entering Preact Values Procedures - - - - - - - - - - - - - - - - - - - - - 7-6
Serial Communications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
Bi-directional Communications- - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
RS-232C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
Operation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
RS-422/485 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
Operation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
Description of 422/485 Transmission Modes Available - - - - - - - - - - - 7-7
RS-485- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
RS-422- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-7
Additional Non-standard Transmission Mode - - - - - - - - - - - - - 7-8
RS-422/485 Wiring and Electrical Specifications - - - - - - - - - - - - 7-8
RS-422/485 Configuration Wiring - - - - - - - - - - - - - - - - - - - - - 7-8
RS-422/485 Electrical Specifications- - - - - - - - - - - - - - - - - - - - 7-9
Instrument Serial Communications - - - - - - - - - - - - - - - - - - - - - - - - - 7-9
About Instrument Serial Communications - - - - - - - - - - - - - - - - - - - 7-9
Printer Output - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-9
Serial Protocol - Multidrop Mode - - - - - - - - - - - - - - - - - - - - - - - 7-9
About Serial Protocol Multidrop Mode - - - - - - - - - - - - - - - - - - - 7-9
Data Formats - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-10
Data Formats - Binary Representation - - - - - - - - - - - - - - - - - - - - - 7-10
Data Formats - Weight Data Format - - - - - - - - - - - - - - - - - - - - - - 7-10
Serial Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-11
Serial Commands - Data Transmission Format - - - - - - - - - - - - - - - - - 7-11
Serial Commands, Command Set- - - - - - - - - - - - - - - - - - - - - - - - 7-12

v
HI 2151/30WC MANUAL

Command Meaning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-13

Parallel BCD Communication- - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-19
Operating Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-19
BCD Print - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-20
Output Disable- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-20
Rate of Change (ROC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-20
Example - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-20
Rate of Change Data - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
Peak Hold Mode Option - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To display PEAK HOLD: - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To reset the Peak Value to zero: - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To exit Peak Hold mode: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
Totalizer Mode Option - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To display the Total Value: - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To print the Total Value: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-21
To clear the Total: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-22
To exit the Total Mode: - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-22
Allen-Bradley Remote I/O Option -B8- - - - - - - - - - - - - - - - - - - - - - - - 7-22
Profibus Interface Option -B12 - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-22

Chapter 8 - Trouble- Disassembly and Reassembly Notes and Cautions - - - - - - - - - - - - - - - - 8-1

shooting Trouble Shooting Using Integrated Technician - - - - - - - - - - - - - - - - - 8-2
General Troubleshooting Flow Chart Index - - - - - - - - - - - - - - - - - 8-8
A - Guidelines for Instabilities on Formerly Operating Systems - - - - - - - 8-9
A1 - Guidelines for Instabilities on Formerly Operating System (Cont'd) - - - 8-10
B - Guidelines for Instabilities on Formerly Operating Systems (Cont'd) - - - 8-11
B1 - Guidelines for Instabilities on Formerly Operating Systems (Cont'd)- - - 8-12
B1 - Guidelines for Instabilities on Formerly Operating Systems (Cont'd)- - - 8-13
C - Guidelines for Instabilities on Formerly Operating Systems - - - - - - - 8-14
E - Non-Return to ZERO- - - - - - - - - - - - - - - - - - - - - - - - - - 8-15
F - Verify Individual Load Cell Milli-volt Readings - - - - - - - - - - - - - 8-16
G - Error 18 During Hard Calibration - - - - - - - - - - - - - - - - - - - - 8-17
H - Mechanical Inspection - - - - - - - - - - - - - - - - - - - - - - - - - 8-18
J - Electrical Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - 8-19
K - Load Sharing and Load Sensor Checkout - - - - - - - - - - - - - - - - 8-20
M - HI Error- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-21
N - Blank Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-22
O - Excitation Monitor - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-23
P - Stuck on “HARDY” Screen - - - - - - - - - - - - - - - - - - - - - - - 8-24
System Integrity Check and Fault Determination- - - - - - - - - - - - - - - - - 8-25
Self-Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-25
Interpreting Diagnostic/Error Messages - - - - - - - - - - - - - - - - - - - - - 8-30
Overview of Typical Load Cell System - - - - - - - - - - - - - - - - - - - 8-30
No Keypad Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-31
Remote Functions Non-operational - - - - - - - - - - - - - - - - - - - - - 8-31
Using Solid State Relays with Light Loads (Optional Set Relays) - - - - - - - - - 8-32
About Solid State Relays With Light Loads - - - - - - - - - - - - - - - - - 8-32
IT Test Menu Breakdown - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-33
Excitation Monitor (Current) Setup Menu - - - - - - - - - - - - - - - - - - 8-34
Digital Volt Meter (D.V.M) - - - - - - - - - - - - - - - - - - - - - - - - 8-34
Return to Zero Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-35
Weighing System Test - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-36
Error Messages and Definitions - - - - - - - - - - - - - - - - - - - - - - - - - 8-37
- - LO - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-37
- - HI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-37
ERREXC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-37
Error Messages - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-37

vi
 Table of Contents

General Policies and Information- - - - - - - - - - - - - - - - - - - - - - - - 8-39

System Support - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-39
Warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-39
FOR FURTHER INFORMATION CONTACT: - - - - - - - - - - - - - - 8-39
Ordering Replacement Parts - - - - - - - - - - - - - - - - - - - - - - - - - - 8-40

Index

System data survey sheet

Glossary of Terms

Self Test Display

Options

vii
HI 2151/30WC MANUAL

viii
 Table of Illustrations

Table of Illustrations

CHAPTER 1 - OVER- MODEL NUMBER BREAKDOWN - - - - - - - - - - - - - - - - - - - - - - - - 1-8

VIEW

CHAPTER 3 - INSTAL- 2” REAR PANEL CLEARANCE REQUIREMENT- - - - - - - - - - - - - - - - - 3-3

LATION PANEL CUTOUT DIMENSIONS - - - - - - - - - - - - - - - - - - - - - - - - - 3-4
NEMA 4 GASKET FLUSH AGAINST THE FRONT PANEL- - - - - - - - - - - - 3-4
MOUNTING REMOTE DISPLAY TO ENCLOSURE - - - - - - - - - - - - - - - 3-6
INSTALLING ELECTRONICS ENCLOSURE TO A PLATE - - - - - - - - - - - - 3-6
INSTALLATION OF WALL MOUNT MODEL - - - - - - - - - - - - - - - - - - 3-7
WIRE ROUTING FOR WALL MOUNT MODEL - - - - - - - - - - - - - - - - - 3-8
POWER WIRING DIAGRAM - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-9
C2 LOAD CELL CONNECTION - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
LOAD CELL CONNECTION (NON C2 LOAD CELLS) J1- - - - - - - - - - - - - 3-14
OPTION LABEL COVER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-15
ANALOG OUTPUT BOARD - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-16
PARALLEL BCD BOARD - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-17
BCD QUAD TERMINATION BOARD OPTION - - - - - - - - - - - - - - - - - 3-19
BCD TERMINATION BOARD INSTALLATION DRILL TEMPLATE - - - - - - - 3-19
BCD TERMINATION INSTALLATION BLOCK DIAGRAM - - - - - - - - - - - 3-20
RIO CARD/PIN LAYOUT- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-21
SET POINT RELAY OPTION BOARD - - - - - - - - - - - - - - - - - - - - - - 3-23
INSTALLATION DETAILS - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-23
STANDOFF ASSEMBLY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-23
SECURE MEMORY MODULE - - - - - - - - - - - - - - - - - - - - - - - - - - 3-24
INSTALLING AND REMOVING THE SECURE MEMORY MODULE - - - - - - 3-24

CHAPTER 4 - SYSTEM MAIN BOARD JUMPER AND DIP SWITCH LOCATIONS - - - - - - - - - - - - 4-1
CONFIGURATION REMOVING THE REAR PANEL - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
RS-232 (DEFAULT), S422/485 JUMPER SETTINGS - - - - - - - - - - - - - - - 4-3
NON TERMINATING CONTROLLER, ALL DIP SWITCHES SET
IN THE OFF POSITION- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
TERMINATING CONTROLLER, ALL DIP SWITCHES SET
IN THE ON POSITION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-4
ANALOG OUTPUT BOARD - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-6
BCD CARD JUMPER LOCATION - - - - - - - - - - - - - - - - - - - - - - - - 4-6
BCD JUMPER SETTINGS - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7
CAL TOGGLE SWITCH LOCATION - - - - - - - - - - - - - - - - - - - - - - - 4-7
AUTO ZERO DIP SWITCH SETTING- - - - - - - - - - - - - - - - - - - - - - - 4-8
PEAK HOLD MODE DIP SWITCH LOCATION- - - - - - - - - - - - - - - - - - 4-9
POWER & RELAY BOARD DIP SWITCH LOCATION - - - - - - - - - - - - - - 4-10

CHAPTER 5 - SETUP FRONT PANEL- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1

FRONT PANEL, BAR GRAPH DISPLAYED - - - - - - - - - - - - - - - - - - - 5-3

CHAPTER 6 - CALI- PROPERLY INSTALLED LOAD CELL W/NO BINDING - - - - - - - - - - - - - 6-2

BRATION MILLIVOLTS/WEIGHT SCALE - - - - - - - - - - - - - - - - - - - - - - - - - 6-3
FRONT PANEL DISPLAY WITH NUMBERS - - - - - - - - - - - - - - - - - - - 6-4
FRONT PANEL DISPLAY WITH TEXT - - - - - - - - - - - - - - - - - - - - - 6-4
FRONT PANEL STATUS LEDS DISPLAYED- - - - - - - - - - - - - - - - - - - 6-5

CHAPTER 7 - OPERA- FRONT PANEL, PROCESS WEIGHING FUNCTION BUTTONS - - - - - - - - - 7-1

TION OPTION MENU TREE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3
LOW AND HIGH PREACT TRIP LIMITS - - - - - - - - - - - - - - - - - - - - - 7-5
WIRING DIAGRAM SERIAL COMMUNICATIONS - - - - - - - - - - - - - - - 7-8

I
HI 2151/30WC MANUAL

II
 Chapter 1 - Overview

CHAPTER 1 - OVERVIEW
This manual provides users and service personnel with specifications
and procedures for installation, setup, configuration, operation, com-
munication, maintenance, and troubleshooting for the Hardy Solutions
HI 2151/30WC Weight Controller. The HI 2151/30WC is
fitted with WAVERSAVER® , C2® Calibration, and the INTE-
GRATED TECHNICIAN™ (IT®) diagnostic tools.
NOTE: IT®, WAVERSAVER®, and C2® are Registered Trademarks of Hardy Instru-
ments Inc.

To ensure the safe operation, before using the weight controller, users
and maintenance personnel should read and understand all cautions,
warnings, and safety procedures stated or referenced in this manual. To
get the maximum service life from this product, follow the instructions
described in this manual.
Hardy Process Solutions appreciates your business. Should you not under-
stand any information in this manual or experience any problems with
the product, please contact our Customer Support Department at:

Phone: (858) 278-2900 FAX: (858) 278-6700

About Hardy Manuals Every Hardy Installation and Operation manual is organized into easily
referenced chapters, that are almost always the same:
Chapter One - Provides an introduction to the instrument and an
Overview of the equipment and its capabilities.
Chapter Two - Provides a list of Specifications.
Chapter Three - Contains information needed to Install the HI 2151/
30WC (both standard equipment and optional equipment) and the HI
215IT series Junction Box.
Chapter Four - Provides Hardware Configuration instructions for
setting dip switches and jumpers.
Chapter Five - Describes the Firmware Setup and preparation proce-
dures to calibrate and operate the instrument.
Chapter Six - Provides Calibration instructions.
Chapter Seven - Describes the Operation of the HI 2151/30WC.
Chapter Eight - Describes Troubleshooting procedures for repair of
the instrument.

Description The HI 2151/30WC is a compact, multipurpose, microprocessor-based

weight controller (See Fig. 1-1) that is used for a wide variety of pro-
cess weighing applications, including batching, blending, check weigh-
ing, filling/dispensing, force measurement, level by weight, and weight
rate monitoring. As a standalone product, the HI 2151/30WC can con-
trol as many as eight set point relays, and transmit data via analog,
serial and BCD communications. The weight controller can also be
1-1
HI 2151/30WC MANUAL

used as a front end for a control system, transmitting weight values via
a standard operator-selectable serial port (RS-232, RS-422/485) to pro-
grammable logic controllers (PLC's), computers, and printers.
Data is displayed alpha-numerically on the six-digit, fourteen segment
LED display and graphically on the 30-segment bar-graph display.
Weight values can be based on either net, gross, Rate-of-Change
(ROC), peak hold or totalized weight values in pounds or kilograms.
An optional Allen Bradley Remote I/O and PROFIBUS interface is
available for communication to programmable logic controllers. The
weight controller’s 20-bit, analog-to-digital converter updates twenty
times per second and is capable of 985,000 counts of display resolu-
tion. This provides enough resolution for accurate weight measurement
and enough control to tolerate large “dead” loads and over sizing of
load cells/sensors. Users can enter commands either from the commu-
nication ports or locally from a sixteen-button, front-panel keypad. A
portion of the keys can be locked out to limit operator access and pro-
tect data. A limited number of commands can be entered through a rear
Remote Functions connector.

WAVERSAVER® Typically, mechanical noise from other machinery in a plant environ-

ment exists in all industrial weight control and measurement applica-
tions. WAVERSAVER® enables the weight controller to distinguish the
actual weight data from the mechanical noise that comes in on the load
cell signal. WAVERSAVER® can be configured from the front panel to
ignore noise with frequencies as low as 0.25 Hz. Users can select one
of four higher additional cut-off frequencies to provide a faster instru-
ment response time. The default factory configuration is 0.50 Hz vibra-
tion frequency immunity.

C2® Calibration C2 second-generation electronic calibration can calibrate a scale sys-

tem without using certified test weights. A C2 weighing system con-
sists of up to eight load sensors, a junction box, interconnect cable and
an instrument with C2 capabilities, such as the HI 2151/30WC. Each
Hardy Solutions C2-certified load sensor sends a distinct digital sig-
nal that the HI 2151/30WC uses to calculate weight and count the num-
ber of sensors in the system. To factor in any known weight on the
scale, the user enters a reference value from the front panel. (A zero
reference value indicates there is no weight on the scale.)
The instrument is also capable of performing traditional calibration
such as with the use of certified test weights.

IT® INTEGRATED TECHNICIAN™ is a built-in diagnostics utility that

continuously monitors the system and allows the operator to rapidly
troubleshoot problems from the front panel. Adding an optional an IT
junction box extends the diagnostics capability to any load sensor.

1-2
 Chapter 1 - Overview

Excitation Monitor Continuously monitors the system excitation current for evidence of
open or shorted load sensors or damaged or broken excitation wire(s),
including the wires between the instrument and the junction box. If the
measured current deviates from a ± 10% tolerance, an "ERRExC"
(Error Excitation) displays on the front panel. In a system with C2 load
sensors, IT computes the correct current and displays alarms if the ini-
tial measured current is out of tolerance. Without C2 load sensors, the
initial read is assumed to be correct and is used as the standard.

Digital Volt Meter The DVM displays millivolts (mV to one digit to the right of the deci-
(DVM) mal point) and millivolts per volt (mV/V to four digits to the right of
the decimal point) for both the whole system and individual load sen-
sors. The DVM helps enables the user to isolate a faulty component
from the front panel. The voltage reading can be used to level a bal-
anced system and to make corner adjustments to platform scales. Accu-
racy is ± 2% or better of full scale.

Return to Zero Test This test compares the original voltage reading saved at calibration
against the current voltage reading of an empty vessel and displays
either a pass (OK) or fail (ERR) message. The test checks for load sen-
sor damage (due to electrical zero shift or abnormal mechanical forces)
that causes binding sensors in the system.
• With an IT junction box, the test will pass or fail the individual load
sensors providing a true fault isolation capability.
• Without an IT junction box, the test will pass or fail on the basis of
a cumulative reading rather than an individual reading of each load
sensor.

Weighing System Tests (Requires the IT Junction Box) This test does the following analysis to
diagnose drifting or unstable weight reading problems:
1. It disconnects the controller and engages an internal reference sig-
nal to see if the problem is within the instrument.
2. It disconnects the load sensors and engages an internal (in the junc-
tion box) reference signal to see if the cable between the instrument
and the Junction Box is causing the problem.
3. It reads the weight of each load sensor to see if a load sensor might
be causing the problem.

Weight readings from the individual load sensors makes this test useful
for making cornering, leveling, and load-sharing adjustments.

Secure Memory The Secure Memory Module stores critical HI 2151/30WC configura-
Module (SMM) tion, calibration and setup data (excluding Peak Hold) and protects it
from corruption. When a new parameter is entered during system oper-
ation, the SMM automatically updates that value in its memory. Since
the SMM is conveniently accessible from the instrument's rear panel,
data stored in one HI 2151/30WC may be restored to the new instru-
ment by physically transferring the SMM.
1-3
HI 2151/30WC MANUAL

NOTE: The SMM is limited to 1,000,000 lift-time write functions. A write is performed after
any parameter change to the calibration, zero, and tare functions.

NOTE: You cannot transfer the SMM from the HI 2151/30WC to the HI 2151/20WC.

Set PointRelays The HI 2151/30WC is fitted with two standard, internal, selectable and
mechanical form C (SPDT) relays. Six optional, external, solid-state
relays are available and are field configurable as form A or B types.
Both types have individual set point, preact, and deadband parameters.
Each can be programmed to respond to the standard Net or Gross
modes of operation or the optional ROC, Totalizer or Peak Hold modes.
These relays can be used to open or close valves or gates or to turn
motors, mixers, vibration equipment, heaters, coolers, etc. on or off.

Serial Port One standard serial port can be configured to receive commands and
transmit weight data to a serial device such as a printer output or bi-
directional port. By resetting jumpers within the instrument, it can be
configured for RS 232 (-A1), RS 422 (-A2) or RS 485 (-A3). Baud
rates are user selectable at 600, 1200, 2400, 4800, 9600 or 19,200.

Hardy Link LAN The Hardy Link Local Area Network (LAN) assigns an address to each
instrument and provides the firmware necessary to handle in-coming
and out-going communications.

Remote Functions Rear panel input of a level or momentary grounding that can be used to:
Tare the instrument., activate a print sequence, totalize the display,
force the Net mode, toggle between pounds or kilograms, initiate the
optional ROC (Rate-of-Change) mode, freeze the front panel display or
one of the communications ports, and clear the totalizer or peak hold
values. This is useful for adding large additional industrialized switches
to the control panel.

Auto Zero Tracking Auto Zero Tracking causes the display to indicate zero as long as any
"live weight" on the scale is below the set zero tolerance and the scale
is not in motion. This capability allows the instrument to ignore mate-
rial build-up in the weigh system within the set zero tolerance.
NOTE: Do not use auto zero tracking to correct a drifting-scale problem. Auto zero tracking will
zero and write to the SMM every second if there is a change in weight. A correct graduation
size is required to stop excessive weight changes and reduce write commands to the SMM.
See Chapter Six for graduation size setup guidelines.

NOTE: The amount of weight zeroed off is cumulative. The autozero command will fail if the
current gross weight plus any previously zeroed amount exceeds the zero tolerance.
Auto Zero Tracking is enabled when switch eight of S3 (the configura-
tion dipswitch), labeled Config on the instrument's rear panel is in the
on position.

1-4
 Chapter 1 - Overview

Output Device
Options

Analog Output (-B1) Analog Output is configured from the front panel or the serial port and
set up by jumpers on the printed circuit card. The option allows the
transmission of Gross, Net, Optional ROC, Peak or Total weight as 0-
5V, 0-10V, 0-20mA or 4-20mA (or the reverse of these) and makes it
possible to span these ranges over a portion of the weight data. Resolu-
tion is either 16,000 counts or the number of display counts available in
the range selected, whichever is less. Two analog optional boards can
be installed in each instrument. Both voltage and current data are avail-
able simultaneously.

Binary Coded This BCD Option provides six digits of parallel weight data represent-
Decimal (BCD) ing Net, Gross, Tare and the present front panel display. If all types of
Output (-B2) output data are requested, they appear one after the other, ten millisec-
onds apart. The BCD option provides a 37-pin, D-subminiature con-
nector on a 6-inch cable.

Binary Coded This BCD option provides six digits of parallel weight data represent-
Decimal (BCD) ing Net, Gross, Tare and The Present Front Panel Display. If all types of
Output (-B5) output data are requested, they appear one after the other, ten millisec-
onds apart. The BCD option provides a 40-pin connector on a 60-inch
cable for use with either the optional -B6 or -B7 external termination
boards.

BCD Single The BCD Single Termination Card is an optional external interface
Termination Card (- point for a single BCD port signal line. The card is designed for use
B6) with a single HI-2151/30WC-B5 instrument.

BCD Quad The BCD Quad Termination Card is an optional external interface point
Termination Card (- for up to four sets of BCD port signal lines. All terminal positions
B7) accept 20- to 26-gauge cable sizes. Additional terminal boards may be
interconnected to allow multiple BCD ports to exist in a tri-state
arrangement.

Remote I/O (RIO) The RIO port allows bi-directional communications with Allen-Brad-
Interface to the Allen- ley Programmable Logic Controllers (PLC) and Small Logic Control-
Bradley Network (- lers (SLC). Supporting up to 230.4 Kbaud transfer rates and both
B8) discrete and block data transfers, the HI 2151/30WC represents a quar-
ter rack of discrete I/O (32 bits in the Logic Controllers output and
input image files) to the Logic Controller.

Binary Coded This option provides six digits of parallel weight data representing Net,
Decimal (BCD) Gross, Tare and the present front panel display. If all types of output
Output (-B9) data are requested, they appear one after the other, ten milliseconds
apart. This option provides a 24-inch cable for use with the HI 2151/
30WC-WS wall mount controller.

1-5
HI 2151/30WC MANUAL

PROFIBUS Interface Allows bi-directional communications to Profibus (Process Fieldbus)

Option (-B12) products including those made by Siemens, GE Fanuc and Texas
Instruments. This interface supports PROFIBUS-DP (Decentralized
Periphery) and processes both Selectable Predetermined and Block
transfer commands. It supports up to 12 Mbaud transfer rates.

Dynamic Data Allows bi-directional communications with a PC over the serial port
Exchange (DDE) (- using Windows® 3.x, Windows® 95, or Windows® NT. The DDE links
B14) the HI 2151 series weight controllers to a Windows-based application
software such as: Wonderware®, Visual Basic®, Excel®, Lotus 1-2-3®,
or Quattro Pro®.
NOTE: Windows, Visual Basic and Excel are all registered Trademarks of the Microsoft Cor-
poration. Wonderware is a registered trademark of the Wonderware Corporation.
Lotus 1-2-3 is a registered trademark of I.B.M. Quattro Pro is a registered trademark
of the Corel Corporation. All terms mentioned in this manual that are known to be
trademarks or service marks have been appropriately capitalized. Hardy Solutions
cannot attest to the accuracy of this information. Use of a term in this manual should
not be regarded as affecting the validity of any trademark or service mark.

Control Options

Peak Hold (-C1) This option is generally used in testing to determine peak forces a prod-
uct or material can withstand. It can also be used to track the highest
force applied to the scale. It displays and stores the highest gross
weight value measured until that value is cleared by a command from
the front panel key pad or a remote source.

Rate-of-Change The ROC option measures and displays the rate at which a material
(ROC) (-C2) enters or is dispensed from the scale over a period of time. The register
for ROC holds 21 entries. New weight values are input to the register at
the rate of 1/20th of the time base. The first register is subtracted from
the 21st Register, which is one time base older than the 1st register. The
time frame can be set to units per second, minute or hour. A time base
of discrete values is selectable from 1 to 1800.

Set Point Options

TTL(Transistor - Provides six TTL level outputs rated at 500 milliamps per line. A mat-
Transistor Logic) ing connector with eight 24-gauge, unterminated wires, 60 inches long
Level Output (-D1) is also provided.

External Setpoint This externally mounted card is equipped with six solid-state triac
Relays Card (-D2) relays. (See Chapter Two for Specifications) Individual relays can be
configured as form A or form B by an on-board dip switch. Each can be
programmed to respond to the standard Net or Gross modes of opera-
tion or the optional ROC, Totalizer or peak hold modes. Each have
individual setpoint, preact, and deadband parameters. A 60-inch inter-
face cable is provided. This option should not be used with the wall-
mount enclosure.

1-6
 Chapter 1 - Overview

External Setpoint The same as the -D2 option except that the length of the cable provided
Relays Card (-D3) is six inches. This is designed to mount in the HI 2151/30WC-WS-D3
wall mount enclosure.

Miscellaneous Options

240 VAC 50/60 Hz This is a factory configuration only.

Input Voltage (-E2)

NIST/NTEP The HI 21251/30WC is approved for National Institute of Standards

Certification Mode and Technology (NIST) applications formally called the National
Kit (-E3 except for - Bureau of Standards (NBS). It is certified under the National Type
F4 wall mount) Evaluation Program (NTEP) for up to 10,000 counts when the NIST
mode is activated. This option is required when products are to be
directly sold based on weight readings of the scale. This kit includes
special screws for sealing the instrument, a label plate, a NEMA 4 gas-
ket and a NIST label.

Portable Display and The HI 2151/30XX-E4 option is used for local set-up, calibration and
Keypad (-E4) display of the blind remote version instrument, modelHI 2151/30WC-
BR.

Intrinsic Barrier The Intrinsic Barrier Assembly Option is used with the Model HI 2151/
Assembly (-F8) 30WC. The option provides safety for Class I, II and III, Division I
Applications. Only the front face panel is rated for Class I and II Divi-
sion II areas. The remaining portion of the HI 2151/30WC controller
must be installed in a NEMA4 enclosure for an intrinsically safe area.
See 2151/30 FM drawings (0584-0034) for information. Contact Hardy
Technical Support for questions:
Phone: 1-800-821-5831.
Web Address://www.hardysolutions.com

Interpreting the
Model Code Number

Model Code The model code number can be found on a label that is attached to the
Breakdown HI 2151/30WC. It starts with the base model number (HI2151/30WC).

Fig. 1-1 shows dash alphanumeric code designations that indicate the
capabilities of the weight controller. For example: A model HI2151/
30WC-A1-C2-D1-E3 is a Panel Mount Instrument with a factory-con-
figured RS 232 serial port, rate-of-change, six TTL level outputs, and
an NTEP Certification Kit.

1-7
HI 2151/30WC MANUAL

HI 2151/30WC - B3 - C2 - D1 - E3
MOUNTING OPTIONS
WC - Panel Mount
WC -WS - Wall Mount
WC - RM - Remote Mount
WC - BR - Blind Remote

OUTPUT OPTIONS
B1 - Analog Output
B2 - BCD Data Output Tri-Stated
(37 pin conn. w/6"Cable)
B5 - BCD Data Output Tri-Stated
(60" Cable)
B6 - BCD Single Termination Board
(Used w/B5)
B7 - BCD Quad Termination
(Used w/B5)
B8 - Remote I/O Interface for
Allen Bradley Network
B9 - BCD 24" cable
(wall mount version only)
B12 - PROFIBUS Interface Option
B14 - Dynamic Data Exchange (DDE)
I/O Server

CONTROL OPTIONS
C1 - Peak Hold
C2 - Rate-of-Change
C6 - Weight Totalization

SETPOINT OPTIONS
D1 - Six TTL level outputs w/60" unterminated cable
D2 - D1 + a solid state relay card w/60" cable

HARDWARE OPTIONS
E2 - 240 VAC 50/60 Hz Operation
E3 - NTEP Certification Kit
E4 - Portable Display (Blind Remote Only)
F2 - NTEP Option
F8 - Used with Advantage load sensors and
hazardous area-approved load cells

FIG. 1-1 MODEL NUMBER BREAKDOWN

1-8
 Chapter 2 - Specifications

CHAPTER 2 - SPECIFICATIONS
Chapter Two covers the specifications for the HI 2151/30WC weight
controller and optional equipment. The specifications listed are
designed to assist in the installation, operation, and troubleshooting.

HI 2151/30WC
Specifications for a
Standard Instrument

Conversion Rate • 20 updates per second

Resolution • Displayed: 1:985,000 (@ 3 mV/V)

1:656,000 (@ 2 mV/V)
• Internal: 1:1,048,576

Excitation Voltage • 0-5 VDC

Averages • 1 to 200 User Selectable in single Increments

Input • Up to eight (8) 350 ohm Full Wheatstone Bridge, Strain Gauge
Load Sensors/Cells (5 volt excitation) on one vessel.
• Signal Voltage Range0-15mV

Display • 6 digit, 14 segment red LED, 0.6" alpha-numeric

• Bar-Graph 30 segment LED

Display Increments • 1,2,5,10,20,50,100,200,500 user selectable via the front panel key
(Graduations) pad.
• Corresponding weight is dependent on the decimal point location.

Key Pad • 16 tactile keys

• 6 dedicated functions
• 10 dual numeric and function

Standard Setpoint • 2 Standard SPDT (Form C) Relays

Relays • Wire Size: 12 AWG Maximum
• Maximum Switch Current: 5 Amps
• Maximum Switch Power: 150 Watts or 1250 Volt/Amps
• Maximum Switch Voltage: 5 Amps @ 3 VDC or 125 VAC

Non-Linearity • 0.0015% of Full Scale

Maximum Zero • 32766

Tolerance

WAVERSAVER® • 7.5 Hz
• 3.5 Hz
• 1.0 Hz
• 0.5 Hz
• 0.25 Hz
2-1
 Chapter 2 - Specifications

• Front Panel Dimensions

3.74"H x 7.00"W x 0.42"D (95mmH x 177.80mmW x 10.67mmD)

• Panel Cutout Dimensions

3.09"H x 5.75"W (78.5mmH x 146mmW)

• Case Material
Aluminum alloy (6063-T5), Chem. Film (MIL-C-541)

• Weight
4.6 pounds (2.1 Kilograms)

• Rating
Front Panel NEMA 4 Seal

Wall Mount Model HI • Case Dimensions

2151/30WC-WS 15.5"H x 12.94"W x 6.42"D (393.7mmH x 328.68mmW x
173.07mmD)

• Case Material
304 Stainless Steel Body (14 gauge) Cover (16 gauge)

• Weight
19.8 pounds (9 Kilograms)

• Enclosure Rating
NEMA 4 & 4X

Remote Mount Model • Case Dimensions

HI 2151/30WC-RM 3.23"H x 5.74"W x 10.40"D (82.04mmH x 145.8mmW x
264.2mmD)

• Front Panel Dimensions

3.74"H x 7.00"W x 0.42"D (95mmH x 177.8mmW x 10.67mmD)

• Panel Cutout Dimensions

3.09"H x 5.75"W (78.4mmH x 146mmW)

• Weight
4.6 pounds (2.1 Kilograms)

NEMA Ratings
• Case
None
2-3
HI 2151/30WC MANUAL

• Font Panel
NEMA 4 seal

• Cable
5 foot flat ribbon

Blind Remote Mount • Case Dimensions

HI 2151/30WC-BR 3.23"H x 5.74"W x 10.40"D (82.04mmH x 145.8mmW x
264.2mmD)

• Weight
4.5 pounds (2.04 Kilograms)

• Enclosure Rating
None

Portable Display HI • Case Dimensions

2151/30XX-E4 (use 4.72"H x 7.39"W x 2.06"D (11.89mmH x 187.71mmW x
with HI 2151/30WC- 52.32mmD)
BR)
• Weight
1.08 pounds (0.49 Kilograms)

• Enclosure Rating
None

• Cable
72"L

IT® Junction Box HI • Case Dimensions

215IT-SS or PS Series 6.25"H x 6.25"W x 4.50D (158.75mmH x 158.75mmW x
114.3mmD)

• Weight
5 pounds (2.27 Kilograms)

• Enclosure Ratings
• -SSStainless Steel NEMA 4 & 4X
• -PSPainted Carbon Steel NEMA 4

IT® Junction Box HI • Case Dimensions

215IT-FG Series 6.50"H x 8.0"W x 4.46D (165.1mmH x 203.2mmW x 113.28mmD)

• Weight

2-4
 Chapter 2 - Specifications

5 pounds (2.27 Kilograms)

• Enclosure Rating
Fiberglass - NEMA 4

Approvals • UL Certification
• CSA Certification
• Factory Mutual (FM) Class I, II, III Div. 2 Groups A-G
• CE Approval
• NTEP Approval
• MC (Measurement Canada) Approval

Serial • Baud Rates:600, 1200, 2400, 4800, 9600, 19200

Communications • RS 232 (-A1):Full Duplex
• RS 422 (-A2): Full Duplex, 4 wire
• RS 485 (-A3): Half Duplex, 2 wire

Bi-Directional 1. RS-232C SPECIFICATIONS

Communications
SPECIFICATION DESCRIPTION

High Level Output +11V at 5 mA

Low Level Output -11V at -5 mA
SPECIFICATION DESCRIPTION

High Level Input +4V to +15V

Low Level Input +1.6V to -15V (Schmit trigger input
disallows logic changes with voltages
between these ranges.)
Slew Rate 15V per microsecond maximum
Input Impedance 20K ohms
GND SIGNAL GND
Update Time 10 updates/sec.

Serial port connections are made to J3, located on the rear panel,
through the mating plug P3.

2. RS-422/485 Specifications
Interface specifications per EIA (Electronic Industries Association)
Standards RS-422 and RS-485.

Optional Equipment

Analog Output (-B1) • Resolution

16,000 counts

• Linearity
0.01% (with 1 average selected)

2-5
HI 2151/30WC MANUAL

• Response Time
1 millisecond after update

• Isolation from Main Board

300 VAC or 450 VDC

• Update
50 milliseconds (20 times/sec.)

• Voltage Out
• Range
0 - 5 VDC, 0-10 VDC (or reverse of these)
• Max Current
5 ma (2 K ohm load @ 10 V)
• Temp. Stability
10 ppm/C or 4 mV total from 30 to 120 degrees F

• Current Out
• Range
0 - 20 mA, 4-20 mA (or reverse of these)

• Max Voltage
12 V allowing 0 - 600 ohm load at 20 mA

• Mating Connector
6 pin Phoenix

Binary Coded Decimal • Resolution

(BCD) (-B2) 6 digits

• Data Drive
15 LSTTL loads (6 mA total)

• Print/Not Print Drive

10 LSTTL loads (4 mA)

• Transmit Distance
50 feet (15.24 meters)

• Cable
6" 40 pin right angle to 37 pin Dshell Connector. Use with -B6 and
-B7 Options

2-6
 Chapter 2 - Specifications

Binary Coded Decimal • Resolution

(BCD) (-B5) 6 digits

• Data Drive
15 LSTTL loads (6 mA total)

• Print/Not Print Drive

10 LSTTL loads (4 mA)

• Transmit Distance
50 feet (15.24 meters)

• Cable
60"- 40 pin right angle to 40 pin right angle. Use with -B6 and -B7
Options

BCD Single • Overall Dimensions

Termination Board (-
7.75L" x 5.0W" (196.85mmL x 127.00mmW)
B6)
• TB Wire Gauge
20 to 26 AWG

BCD Quad • Overall Dimensions

Termination Board (- 7.75L" x 5.0W" (196.85mmL x 127.00mmW)
B7)
• TB Wire Gauge
20 to 26 AWG

Allen-Bradley Remote • Resolution

I/O Interface (-B8) 986,000 counts

• Represents
1/4 Rack of Discrete I/O

• Type Transfers
Discrete and Block (Read & Write)

• Baud Rate
57.6 Kbaud
115.2 Kbaud
234.4 Kbaud

Binary Coded Decimal • Resolution

(BCD) (-B9)
2-7
HI 2151/30WC MANUAL

6 digits

• Data Drive
15 LSTTL Loads (6mA Total)

• Print/Not Print Drive

10 LSTTL Loads (4mA)

• Transmit Distance
50 feet (15.24 meters)

• Cable
24" For use with -WS Wall Mount Instrument

Profibus I/O Interface • Protocol

(-B12) DP (Decentralized Periphery)

• Data Configuration
16 words or 32 bytes

• Standard Reference
Process Fieldbus - DIN 19 245

• Baud Rate
9,600 Kbaud to 12 Mbaud (Auto-Selectable)

Peak Hold (-C1) • Display

Highest Gross Value
Average Peak Gross Value

Rate of Change (ROC) • Time Units

(-C2) Seconds, Minutes and Hours

• Time Base
1 - 6, 10, 12, 15, 30, 60, 120, 240, 450, 900 or 1800

Totalizer (-C3) • Display

Accumulated Net Weight

• Activation Level
Momentary connection to remove functions ground min. 0.1 sec-
onds

2-8
 Chapter 2 - Specifications

Six TTL Level • Rating

Outputs (-D1) 300 ma per line

• Cable Length
5 feet (1.52 meters)

Six External Solid • Type

State, Set Point Relays Solid State individually configurable form A or B
(-D2 & -D3)
• Rating
115 VAC, 3 Amperes Continuous
115VAC, 5 Amperes Momentary

• Board Dimensions
5.7"L x 2.5"W (144.78mmL x 88.9mmW)

2-9
HI 2151/30WC MANUAL

2-10
 Chapter 3 - Installation

CHAPTER 3 - INSTALLATION
Chapter 3 covers unpacking, cabling, interconnecting and installing the
HI 2151/30WC weight controller. Users and service personnel should
be familiar with the procedures in this chapter before installing or oper-
ating the HI 2151/30WC weight controller.

Unpacking Step 1. Before signing the packing slip, inspect the packing for dam-
age of any kind.
Step 2. Report any damage to the carrier company immediately.
Step 3. Check to see that everything in the package matches the bill
of lading. You should normally have:

1. HI 2151/30WC Panel Mount

1 HI 2151/30WC instrument with mating connectors and ordered

options installed.
1 Mounting Rail Kit (Prt. # 0551-0287-01)
• (4) mounting Rails
• (4) 6-32 UNC phillips pan head machine screws

1 Installation and Operation Manual

2. HI 2151/30WC-RM Remote Mount

1 Instrument with mating connectors and ordered options

installed.
1 Remote display/keypad with gasket and mounting hardware
attached.
1 60 inch display to instrument interconnect ribbon cable.
1 Installation and Operation Manual

3. HI 2151/30WC-WS Wall Mount

1 Instrument with mating connectors and ordered options

installed.
1 Installation and Operation Manual

4. HI 2151/30WC-BR Blind Remote

1 Instrument with mating connectors and ordered options

installed.
1 Installation and Operation Manual

3-1
HI 2151/30WC MANUAL

5. Dynamic Data Exchange (DDE) I/O Server - B14

1 DDE Server Software Diskette

1 6 foot test cable
1 9 pin to 25 pin adapter
1 Installation and Operation Manual

6. HI 215IT-SS1/-PS1/-FG1 Integrated Technician Junction Box

1 Enclosure and circuit card with nine mating connectors

installed.
2 1" diameter push in plugs
5 1.12" diameter rubber gaskets
5 0.5" diameter steel locknut fastener
5 ½ " NPT nylon cord grip strain relief (.375" - .500")

7. HI 215IT-SS2/-PS2/-FG2 Integrated Technician Junction Box No

C2

1 Enclosure and circuit card with nine mating connectors

installed.
2 1" diameter push in plugs
5 1.12" diameter rubber gaskets
5 0.5" diameter steel locknut fasteners
1 ½ NPT nylon cord grip strain relief (.375" - .500" Blue Grip)
4 ½ NPT nylon cord grip strain relief (.375" - .500" White Grip)

Step 4. If any items are missing, damaged, or there are any questions,
please contact Customer Support at:

Hardy Process Solutions

9440 Carroll Park Drive, Suite 150
San Diego, CA 92121

Phone: (858) 278-4900

FAX: (858) 278-6700
Web Site: http//www.hardysolutions.com
E-Mail: hardysupport@hardysolutions.com

Step 5. Record the model number and serial number of the Weight
Controller. Store in a convenient, secure location for reference
when contacting Hardy Solutions Customer Service
Department or to buy parts or firmware upgrades.

Mechanical Installation

3-2
 Chapter 3 - Installation

Installing the HI 2151/

30WC in a Panel

Panel Cutout 1. Enclosure Size Requirements.

Specifications
• Overall depth of the enclosure must be a minimum of 11.5" to allow
for the 2" clearance between the rear panel of the HI 2151/30WC
and the inside surface of the rear panel of the enclosure. (See Fig. 3-
1)

• There must be a 1" clearance completely around the bezel

and other installed units.

Bezel
Rear
Panel

2.0"

Front Panel

FIG. 3-1 2” REAR PANEL CLEARANCE REQUIREMENT

2. Dimensions of the enclosure cutout (See Fig. 3-2)

• 5.75" ± .06 (146.05mm ±1.52) Wide

• 3.09" ± .06 (78.49mm ±1.52) High
• All cutout surfaces must be deburred before installation of
the controller.
WARNING DO NOT MOUNT THE HI 2151/30WC CONTROLLER NEAR A HIGH MAG-
NETIC FIELD OR HIGH VAC POWER SOURCE. TO DO SO WILL EFFECT
THE PERFORMANCE OF THE CONTROLLER AND MAY RESULT IN
PROPERTY DAMAGE.

Installing the HI Step 1. Ensure that all Electrostatic Discharge (ESD) precautions
2151/30WC Panel have been taken before installation.
Mount Step 2. The controller comes with a NEMA 4 rated compression gas-
ket. Make sure the gasket is properly seated in the bezel
before installation.

3-3
HI 2151/30WC MANUAL

Step 3. Gently slide the controller into the cutout in the enclosure. Be
sure to secure the controller with both hands when installing.
5.75"

PANEL CUTOUT 3.09"

FIG. 3-2 PANEL CUTOUT DIMENSIONS

Step 4. Slide the controller into the panel cutout until the NEMA 4 &
4X gasket is flush against the front panel of the enclosure.
(See Fig. 3-3)
CAUTION ONCE THE GASKET IS COMPRESSED IT SHOULD NOT BE USED
AGAIN. WHENEVER THE CONTROLLER IS REMOVED FROM THE
PANEL, RE INSTALL WITH A NEW GASKET. (HARDY PRT. # 0524-0011)

Step 5. Install the four mounting bars.

• Slide each of the mounting bars into the slots at the rear of
the controller.
• One end of the mounting bar is recessed. Make sure you
install the bars from this end.
• Check to be sure the mounting bars are flush against the
inside surface of the front panel.

Compression Rear
Gasket Panel

Front Panel

FIG. 3-3 NEMA 4 GASKET FLUSH AGAINST THE FRONT PANEL

3-4
 Chapter 3 - Installation

• Install the four (4) 6-32 pan head machine screws into the
threaded slots at each corner of the controller.
• Hold the controller so that it is aligned and flush against the
enclosure front panel throughout the entire tightening pro-
cess.
• Facing the rear panel of the controller, tighten each screw in
a clockwise direction from corner to corner until each screw
is finger tight.
• Using a phillips screw driver, continue the clockwise direc-
tion and partially tighten each screw until the NEMA 4
bezel gasket is completely compressed and the bezel is flush
against the front panel of the enclosure. Do not tighten one
screw down completely and then go on to the next screw.
Each screw must be tightened a little before going on to the
next to maintain the alignment between the controller and
the front panel of the enclosure.
CAUTION DO NOT OVER TIGHTEN THE MACHINE SCREWS. OVER TIGHTENING
CAN DEFLECT THE BEZEL SO THAT IT WILL NOT BE WATER TIGHT
AND/OR BREAK OFF THE CORNERS OF THE BEZEL.

Step 6. The Panel Mount installation is complete.

Installing the HI
2151/30 Remote
Mount Model
NOTE: See Figure 3-2 for information about the panel cutout.

Install the Front Step 1. Ensure that all Electrostatic Discharge (ESD) precautions
Panel have been taken before installation.
Step 2. The controller comes with a NEMA 4-rated compression gas-
ket. Make sure this gasket is properly seated in the bezel
before installation.
Step 3. The front panel comes with two mounting brackets mounted
on the bezel. Remove the nuts that fasten the brackets to the
bezel, and remove the brackets.
Step 4. Gently slide the front panel into the enclosure cutout until the
gasket is seated against the front of the enclosure. (See Fig. 3-
4)
NOTE: The nuts on the mounting studs barely clear the cutout. It might take a little adjusting
to get the bezel into the cutout.

Step 5. Place the brackets, #6 flat washer, lock washer and hex nut on
the four bezel studs.
Step 6. Make sure that the bezel is centered in the cutout.

3-5
 FIG. 3-4 MOUNTING REMOTE DISPLAY TO ENCLOSURE

Step 7. Tighten the #6 hex nuts finger tight in turn.

Step 8. Use a nut driver or box-end wrench to tighten the nuts in turn
so that the bezel is flush against the front surface of the enclo-
sure front panel.
CAUTION DO NOT OVER TIGHTEN. OVER TIGHTENING CAN DEFLECT THE
BEZEL SO THAT IT WILL NOT BE WATER TIGHT AND/OR BREAK OFF
THE CORNERS OF THE BEZEL.

Installation of the Step 1. Drill four .156- inch tapped or thru holes and use four 6-32
Instrument pan-head machine screws to fasten the enclosure to a panel.
Enclosure

FIG. 3-5 INSTALLING ELECTRONICS ENCLOSURE TO A PLATE

+,:&0$18$/3-6
 Chapter 3 - Installation

Step 2. Connect the 60-inch, 40-pin ribbon cable to the 40-pin con-
nection J5 on the electronics and the 40-pin connection J4 at
the rear of the front panel display.
Step 3. Remote panel mechanical installation is complete.
NOTE: The electronics can be mounted on any of the four sides.

Installing the HI Step 1. Place the instrument in the enclosure so that there is two
2151/30WC-BR Blind inches of clearance from the each end of the enclosure.
Remote Model Step 2. Drill four .156 inch either tapped or thru holes and use four 6-
32 pan head machine screws to fasten the instrument to the
enclosure. (See Fig. 3-5)
NOTE: The enclosure can be mounted on any four (4) of the six (6) sides.

Installing the HI Step 1. Make sure that all Electrostatic Discharge (ESD) precautions
2151/30 Wall Mount have been taken.
Model Step 2. Mount the Instrument securely using all four mounting points.
(See Fig. 3-6)

FIG. 3-6 INSTALLATION OF WALL MOUNT MODEL

Step 3. To conform to NEMA 4 or 4X ratings, connections to the

enclosure must be made with NEMA 4 or 4X conduit fittings.
Step 4. Do not route any signal, voltage or ground wires under or
between printed circuit boards.
3-7
 Input Power Wiring
WARNING DO NOT OPERATE WITH INCORRECT LINE VOLTAGE. TO DO SO WILL
RESULT IN PROPERTY DAMAGE OR PERSONAL INJURY. CHANGING
THE INPUT VOLTAGE RATING BETWEEN 120 AND 240 VAC REQUIRES
MODIFICATIONS TO THE POWER/RELAY CIRCUIT BOARD AND
RELAY OUTPUT BOARD. THIS PROCEDURE SHOULD ONLY BE DONE
BY AUTHORIZED PERSONNEL. FOR FURTHER ASSISTANCE CONTACT
HARDY PROCESS SOLUTIONS, CUSTOMER SUPPORT.

Step 1. The HI 2151/30WC is factory configured to operate from

either 120 or 240 VAC, 50 or 60 Hz power. Check the model
number of your unit to verify the voltage. If the unit is config-
ured for 240 VAC, an "E2" will be printed on the name plate.
Step 2. The power and relay circuit card filters and conditions AC
power. However, for noisy power lines, external conditioning
may be required. Contact Hardy Solutions Customer Sup-
port for more information.
Step 3. The AC power should be supplied by a "clean" primary line,
directly from the power panel. This line should not supply any
other equipment, including the feeding unit, and should be
supplied with a minimum 10 amp breaker.
Step 4. To connect power to the controller, install a 3-wire, minimum
of a 14 AWG power line to the 3-pin terminal block connec-
tor. (See Fig. 3-8)

• Fuse: .5 AMP, 250 VAC Slow-Blow 3AG, located behind

J6 on the power relay printed circuit board.

ASubsid iar yo f Dynamic Instruments Inc.

GND
NEU

HOT

FIG. 3-8 POWER WIRING DIAGRAM

3-10
HI 2151/30WC MANUAL

• Power Input J6
J6 - 1 (Low) Neu
J6 - 2 (HI) Hot
J6 - 3 (Ground)

Step 5. For the Wall Mount -WS version, route the 14 AWG (Mini-
mum) wires through the lower right side of the cut out (facing
the front of the instrument) to TB1 which is mounted at the
lower right hand corner of the back plane.

• HI 2151/30WC-WS Power Connection

TB1-1 Hot (HI)
TB1-2 Neu (Low)
TB1-3 Gnd (Ground)

Output Setpoint Relay • (2) Standard SPDT (Form C) Relays

Wiring • Wire Size: 12 AWG Maximum
• J5 Relays Connector
Pin 1NO (Normally Open) Relay 1
Pin 2C (ARM)Relay 1
Pin 3NC (Normally Closed)Relay 1
Pin 4NO (Normally Open)Relay 2
Pin 5C (ARM)Relay 2
Pin 6NC (Normally Closed)Relay 2

• For Wall Mount Version (-WS) - Route the wiring through the
lower left side of the cutout (When facing the front of the instru-
ment) to the J5 center connector of the lower Printed Circuit Card.

Optional Relays or • This option supplies six TTL level outputs, rated at 300 mA. It is
TTL Level Outputs available as a -D1 option which includes the firmware and a sixty
inch, eight wire, 24 gauge customer terminated cable.
A -D2 option includes the following:
• Firmware
• Sixty inch eight wire, 24 gauge customer terminated ribbon cable.
• Six (6) 115 VAC solid state triac relays on an externally mounted
option card. Mounting hardware includes:
4 standoffs
8 #6 split lock washers
8 #6 flat washers
8 #6-32 UNC pan head screws
• -D2 option card contains a 5-amp fuse for each relay.
• Each relay has a two-pin terminal connector
J3 Set Point 3 J4 Set Point 4
Pin 1 Lo Pin 1 Lo
Pin 2 Hi Pin 2 Hi
3-11
 Chapter 3 - Installation

J5 Set Point 5 J6 Set Point 6

Pin 1 Lo Pin 1 Lo
Pin 2 Hi Pin 2 Hi

J7 Set Point 7 J8 Set Point 8

Pin 1 Lo Pin 1 Lo
Pin 2 Hi Pin 2 Hi

• Use 22 AWG minimum to 12 AWG maximum wire for J3 through

J8.
NOTE: See Output Option Board Installation for board installation procedures.

CAUTION THE CONTACTS ON THE SOLID STATE RELAY WILL OPEN IF A POWER
FAILURE OCCURS. A LIT LED INDICATES THAT THE RELAY HAS BEEN
ACTIVATED.

J3 Serial Port Wiring • The standard serial port J3 is located on the second board inside the
instrument and is configured either as an RS-232 or RS-422/485
port. (See Section 4.1 for port configuration instructions)
• The -A model designator in the model number indicates how the
instrument was configured from the factory. (See Table 3-1)

-A1 -A2 -A3

J3 RS-232 RS-422 RS-485

Pins Signal Signal Signal

1 Cts Tx+ Tr+

2 Rts Tx- Tr-

3 Rxd Rx+ N/C

4 Txd Rx- N/C

5 Gnd Gnd Gnd

TABLE 3-1: FACTORY CONFIGURATION

• Wire size: 22 AWG minimum to 12 AWG maximum

• For -WS wall mount models, route the wiring to J3 through the
upper left side enclosure access hole when facing the front of the
enclosure.

Remote Functions • Some functions are level conditions and some are activated by
Wiring momentary grounding. Both use the remote functions ground found
on pin 9.
• Wire Size:
22 AWG Min. to 12 AWG Max. Shielded

3-12
HI 2151/30WC MANUAL

Optional

WEIGHT
CONTROLLER

8
C2 -
C2 + +EXC
+SEN
-EXC
-EXC -SEN TO AUXILLARY
LOAD -SEN SHIELD JUNCTION BOX
CELL
CONNECTOR -SIG N/C
+ C2 FOR 5 OR MORE
J1
+SIG N/C
- C2 LOAD CELLS
OR 5TH LOAD CELL
+SEN +SIG

+EXC -SIG

1 TB9
SHIELD

LOAD CELL 1
LOAD CELL 2
LOAC CELL 3
LOAD CELL 4

FIG. 3-10 LOAD CELL CONNECTION (NON C2 LOAD CELLS) J1

NOTE: Contact Hardy Customer Support for installation information when using an external
power supply.
NOTE: The Auxiliary Junction Box connector is an optional item and must be ordered from
the factory.
NOTE: Record all load cell serial numbers and location on the label located on the inside
cover of the junction box.

Output Option Board

Installation Procedures
WARNING DANGEROUS VOLTAGE IS PRESENT WITHIN THE ENCLOSURE OF
THE INSTRUMENT AND PRESENTS A RISK OF ELECTRICAL SHOCK.
ALWAYS UNPLUG THE POWER CORD BEFORE OPENING AND SERVIC-
ING THE INSTRUMENT.

CAUTION INSTALLATION AND SERVICING OF THIS UNIT SHOULD BE PER-

FORMED BY AUTHORIZED AND QUALIFIED SERVICE PERSONNEL
ONLY. FOLLOW ALL ELECTROSTATIC DISCHARGE (ESD) PROCE-
DURES WHEN OPENING THE INSTRUMENT.

Step 1. Disconnect the power cord.

Step 2. Detach all interconnect cabling.
Step 3. Use a phillips screw driver and remove the four pan head
machine screws that fasten the rear panel to the extrusion.
Step 4. Gently pull out the rear panel with the printed circuit boards
attached. The main board is in clear view
Step 5. Remove the appropriate option cover from the rear panel
(Option 1 or Option 2 cover) as required. Option 1 cover has

3-15
 Chapter 3 - Installation

two perforations to allow for installation of different options.

(See Fig. 3-11)
Step 6. Each Option Board is furnished with four mounting screws to
secure it to the main board. The main board has pre-mounted
standoffs which accept any of the Option Boards in either
position 1 or position 2. Note however, the BCD board may
be installed only in the Option 2 slot which is sized for the
BCD connector.

Remove for Profibus Remove for BCD option in

Option Option - 2 slot

Remove for Analog Option

in Option - 1 Slot or A-B
RIO

FIG. 3-11 OPTION LABEL COVER

NOTE: Pin number 1 will always be on the left side of the unit (when facing the rear panel)
except for the parallel BCD board.

Step 7. Position the Option Board over the standoffs and carefully
align the mating connector pins of the Option Board with the
appropriate socket position, J4 or J5, on the main board.
Guide the connector pins straight into the socket.
Step 8. Push down on the option board to seat the option connector
pins into the socket on the main board. Visually verify that all
of the pins are properly seated into the mating connector.
Step 9. With the option board resting on top of the four standoffs fas-
tened to the main board, install the four screws, lock washers
and flat washers.
Step 10. Gently slide the rear panel back into the extrusion
Step 11. Replace the four pan head machine screws that fasten the rear
panel to the extrusion.
Step 12. Connect the power cord.

Options Cabling and

Interconnect

Analog Output Option • The Analog Output Option card can be mounted in option slot posi-
-B1 (See Fig. 3-12) tions one or two.

3-16
HI 2151/30WC MANUAL

• This option has one output connector and uses pins 1 and 2 for +
and - voltage outputs and pins 5 and 6 for - and + current outputs.
• One current and voltage range is selected by configuring the two
jumpers on jumper block "W" of the analog board.

0535-0406- REV- ANALOG OUT PWA CR1

C17
-
+
1 25
2 26 TP2

CR3
CR4
R20

R21
P1 + ISO

C18
U7
GND

R2
U5
C1

U2
+ C E

C11
VR2 VR4 Q3

R1
C20 VR3
C13 C16

R3
O I 6
C2 TP1 C21 C24 C25

RN2
C7 R7
C9

Q2
R8 C22 C23 G

RN1

U3
D
R9 W

C14
C5 1

R6
R10
2

R17
R18
Q1 R11 3

C15
C3
S D D 4

U4
C8 R12

CR2
U1 C6 U9
U10
R13 C26
R14
U6 1
R15 J1
C19 R16 R19
C4 S/N U8 R4 R5

FIG. 3-12 ANALOG OUTPUT BOARD

• Both current and voltage outputs are available simultaneously.

• For Jumper Configurations See Chapter 4.
• Wire Size: 22 AWG Min. To 12 AWG Max
• -B1 Option Connector Wiring:
J1-1 V+
J1-2 V-
J1-3 No Connection
J1-4 No Connection
J1-5 I-
J1-6 i+

BCD Option Board • The BCD option board. (See Fig. 3-13) is installed in option slot 2
Installation only and will provide parallel output of the sensed gross, net, or tare
Procedures -B2, -B5, - weight.
B9
W1
0535-0407- REV ISO + 5V C10 BCD PWA S/N
RN2
1 U6
2 J1
P1 + TP2 W2
R2

C3 I
C1
R3

U2 G
C7

U1
C13

C17

O U8 U12
VR1
+ +
C4
C6
C8
R1
C14

C18

C5 + U9 U13
U4
C2
C11

RN1
C12

U3 U7
S
C15

C19

G Q1 C9 U10 U14
D U5
C16

C20

U11 U15
GND
ISO
TP1

39
40

FIG. 3-13 PARALLEL BCD BOARD

Connector Requirements

3-17
 Chapter 3 - Installation

• The board connector is a 40 pin right angle connector termi-

nating to either a 37 pin D-subminiature assembly (option
B-2) a 40 pin connector with a 60-inch cable (option B-5),
or a 40 pin connector with a 24" cable (option B-9 used with
a Wall Mount Model) The B-5 option provides flexibility of
terminating BCD signal lines to the terminal board options
B-6 and B-7.
• The pin designations for the BCD output are noted in Cable
Pinouts List - Parallel BCD Board Connector to BCD Con-
nector. All data outputs have a drive capability of 15 LSTTL
loads (6 mA total) and use positive true logic. PRINT/
READY has a drive capability of 10 LSTTL loads (4mA).
This option board is electrically and optically isolated from
the main board.
Cable Pinouts - Parallel BCD Board Connector to DB Connector

BCD BOARD DB CONNECTOR SIGNAL VALUE

1 1 GND
3 2 BCD digit 1, bit 0 1 x 10°
5 3 BCD digit 1, bit 1 2 x 10°
7 4 BCD digit 1, bit 2 4 x 10°
9 5 BCD digit 1, bit 3 8 x 10°
11 6 BCD digit 2, bit 0 1 x 101
13 7 BCD digit 2, bit 1 2 x 101
15 8 BCD digit 2, bit 2 4 x 101
17 9 BCD digit 2, bit 3 8 x 101
19 10 BCD digit 3, bit 0 1 x 102

BCD BOARD DB CONNECTOR SIGNAL VALUE

21 11 BCD digit 3, bit 1 2 x 102

23 12 BCD digit 3, bit 2 4 x 102
25 13 BCD digit 3, bit 3 8 x 102

27 14 BCD digit 4, bit 0 1 x 103

29 15 BCD digit 4, bit 1 2 x 103
31 16 BCD digit 4, bit 2 4 x 103
33 17 BCD digit 4, bit 3 8 x 103

35 18 BCD digit 5, bit 0 1 x 104

37 19 BCD digit 5, bit 1 2 x 104
2 20 BCD digit 5, bit 2 4 x 104
4 21 BCD digit 5, bit 3 8 x 104
3-18
HI 2151/30WC MANUAL

6 22 BCD digit 6, bit 0 1 x 105

8 23 BCD digit 6, bit 1 2 x 105
10 24 BCD digit 6, bit 2 4 x 105
12 25 BCD digit 6, bit 3 8 x 105

14 26 +/- (- = +5V) (+ = OV)

16 27 OVR

18 28 WEIGHT SELECT - LSB (SEE CHART 3-3)

20 29 WEIGHT SELECT - MSB (SEE CHART 3-3)
22 30 OUTPUT DISABLE
24 31 not used
26 not used
28 33 MOTION (+5V = in motion)
30 34 PRINT/PRINT
32 not used
34 36 LB/KG
36 37 GND
38-40 not used

PIN
MODE
28 29

0 0 GROSS

0 1 NET

1 0 TARE

TABLE 3-3: WEIGHT MODE

BCD Terminator
Boards - B6, - B7

BCD Termination
Board Installation
J4
J1

J2

J3

J5

1 GND
UNIT 1

UNIT 2

UNIT 3

UNIT 4

UNIT 5

2 BUSY
EXPANSION

Procedures (See
UNIT 1

3 PRINT

Fig. 3-14) 4
5
PRTDIS
PRTTRIG
6 OUTENBL
7 GND
8 BUSY
9 PRINT
REV
UNIT 2

10 PRTDIS
11 PRTTRIG
BCD EXTENDER ASSY8 0535-0384-

12 OUTENBL
13 GND
14 BUSY
15 PRINT
UNIT 3

16 PRTDIS
17 PRTTRIG
18 OUTENBL S/N
19 GND TB2

20 BUSY
21
UNIT 4

PRINT
DIS
22
PRT
1

9
10
11

16

18
19
20
100K 21

25
26
LSB 27
2
3

5
6
7
8

12
13
14
15

17

200K 22
400K 23
800K 24

WSM 28
MSB 29
LB/KG 30
4

23 PRT
TRIG
+ /-

24
OVR
10K
20K
40K
80K

OUT
100
200
400
800
1K
2K
4K
8K
10
20
40
80

ENBL
1
2
4
8

3-19
 Chapter 3 - Installation

FIG. 3-14 BCD QUAD TERMINATION BOARD OPTION

Step 1. Locate a clear, flat mounting area within five feet of all HI
2151/30WCs.
Step 2. Use the measurements shown in Figure 3-15 BCD Termina-
tion Board Installation Drill Template Illustration or P/N
0596-0117 drill template to mark five mounting holes. (See
Fig. 3-15)

3.62"

Dia .1875
5 places

4.50"

7.25"

FIG. 3-15 BCD TERMINATION BOARD INSTALLATION DRILL

TEMPLATE
Step 3. Drill 3/16-inch holes where marked.
Step 4. Install five P/N 2815-0053 standoffs in the holes.
Step 5. Install BCD terminal board on standoffs.
Step 6. Connect P/N 0509-0389-01 ribbon cables between the BCD
output (instrument option slot 2) of up to four HI 2151/
30WCs and BCD terminal board jacks J1 through J4.Connect
control lines from computer to TB1.
Step 7. For installations with more than four HI 2151/30WCs, pro-
ceed as follows:
Step 8. Install a second BCD terminal board within two feet of
installed BCD terminal board. Refer to steps 1 through 7.
Step 9. Connect P/N 0509-0389-02 ribbon cable from J5 on one BCD
terminal board to J5 on the other BCD terminal board.
Step 10. Connect data/status lines from BCD terminal board to com-
puter. (See Fig. 3-16)
• Wire Size: 26 AWG to 20 AWG

3-20
HI 2151/30WC MANUAL

UNIT UNIT UNIT UNIT

#1 #2 #3 #4

J2 J3 J4
BCD
J1 TB2
PLC
BCD UNIT # 1 CONTROL
OR
TERMINAL UNIT # 2 CONTROL
MAIN FRAME
BOARD TB1 UNIT # 3 CONTROL
COMPUTER
#1 UNIT # 4 CONTROL

UNIT J5 EXPANSION
#5

J5 EXPANSION
UNIT J1
#6
UNIT # 5 CONTROL
BCD
J2

UNIT TERMINAL UNIT # 6 CONTROL

#7
J3 BOARD TB1
UNIT # 7 CONTROL

#2 UNIT # 8 CONTROL
UNIT
J4
#8

FIG. 3-16 BCD TERMINATION INSTALLATION BLOCK DIAGRAM

Allen-Bradley RIO Refer to Hardy Solutions HI 2151 Series Weight Controllers Remote
Interface Option -B8 I/O Installation and Operation Manual, Document Number 0596-0173
for installation instructions.
The Allen-Bradley RIO card can be mounted in either option slot one
or two. However, there is a limit of one RIO card per instrument. (See
Fig. 3-17)

3-21
 Chapter 3 - Installation

FIG. 3-17 RIO CARD/PIN LAYOUT

Connector Wiring:
1 Blue (1/2 of twisted pair)
2 Shield (outer braided cable shield)
3 Clear (1/2 of twisted pair)
4 No Connection
5 No Connection
6 Wire to instrument chassis ground

Profibus Interface Refer to Hardy Solution's Profibus Interface Option for the HI 2151/
Option -B12 30WC Installation and Operation Manual for installation instructions.
The Profibus option card can be mounted in either option slot one or
two. However, there is a limit of one Profibus card per instrument.
Connector Cable Wiring:
Top Row Right to Left
J1-1 Ground (outer braided shield)
J1-2 No Connection
J1-3 Transmit (1/2 of twisted pair)
J1-4 No Connection
J1-5 No Connection
Bottom Row Right to Left
J1-6 No Connection
J1-7 No Connection
J1-8 Receive (1/2 of twisted pair)
J1-9 No Connection
3-22
HI 2151/30WC MANUAL

Dynamic Data RS-232C- Requires an interface cable with a 9 pin or 25 pin serial port
Exchange (DDE) I/O female connector to connect to a computer. Wire the cable to the 5 pin
Server -B14 Phoenix connector J3 located on the rear panel of the weight controller.
Refer to Hardy Solutions optional DDE Installation and Operation
Manual, document number 0596-0221 for more details.

HI 215IT Series Refer to Fig. 3-11 Load Cell/Sensor Connections for specific details.
Junction Boxes Wiring to Hardy Solutions Load Points and Load Sensors

HI LPH HI LPS HI LPD HI LPT

TB1, 3, 5,7
HI BB01 HI SB01 HI DSB01/2 HI SO1

+ EXC Green or Red Red Red

Green/Blue

-EXC Black or Black Black Black

Black/Grey

Shield Orange or Orange or Orange or Orange or

Yellow Clear Clear Clear

HI LPH HI LPS HI LPD HI LPT

TB2, 4, 6, 8
HI BB01 HI SB01 HI DSBO1/2 HI SO1

C2+ Grey Grey Grey Grey

C2 - Violet Violet Violet Violet

Sig + White Green Green Green

Sig - Red White White White

TB9 J1 HI 2151/30WC

+EXC Red
+SEN Blue
-EXC Black
-SEN Brown

Shield
C2+ Grey
C2- Violet
+SIG Green
-SIG White

Set Point Relay Option The setpoint relay option board must be installed outside of the HI
Board Installation -D2 2151/30WC. (See Fig. 3-18).
Step 1. Locate a clear, flat mounting area within five feet cable dis-
tance of the HI 2151/30WC.

3-23
 Chapter 3 - Installation

U1 N.O. O S1 U2 PWA-RELAY,
N
HI2151/30WC

N.O. 1 2 3 4 5 6 7 8 S/N -
RN1 RN2

SP6
SP7
SP8
SP3
SP4
SP5
1 2 3 4 5 6 7 8
TP 1 TP2 GND
J1
+ 5V 1 1
DS3 DS4 DS5 DS6 DS7 DS8

REV -
0535-0357
K3 K4 K5 K6 K7 K8
F3 5A F4 5A F5 5A F6 5A F7 5A F8 5A

J3 J4 J5 J6 J7 J8
1 2

FIG. 3-18 SET POINT RELAY OPTION BOARD

Step 1. Use the measurements shown in HI 2151/30WC Installation-

Details (See Fig. 3-19) to make four mounting holes.

FIG. 3-19 INSTALLATION DETAILS

Step 2. Drill 3/16-inch diameter holes where marked. (See Fig. 3-19)
Step 3. Install four P/N 2815-
0063 standoffs in the
drilled holes.
Step 4. Install the relay
option board on the
standoffs. (Fig. 3-20)

FIG. 3-20 STANDOFF ASSEMBLY

3-24
HI 2151/30WC MANUAL

Profibus Interface Step 1. Connect P/N 0509-0390 ribbon cable between relay option
Card Option Wiring board jack J1 and J4 on the rear panel of the HI 2151/30WC.
Diagram (See Fig. 2-12)
Step 2. For -WS wall mount versions the card can be mounted within
the enclosure. Route the wiring to J3 thru J8 via the lower left
side of the access hole.
For more complete instructions, see the Profibus Interface Option, Card
Operation and Installation Manual #0596-0211.

Installation of the Secure

Memory Module

FIG. 3-21 SECURE MEMORY MODULE

Step 1. Make sure that the module has the notch facing up. (Fig. 3-21)
Step 2. Slide the module with the notch up into the module housing.
Step 3. Press the module in until it stops.
Step 4. To remove the module pull the module straight out of the
housing. (See Fig. 3-22)

FIG. 3-22 INSTALLING AND REMOVING THE SECURE MEMORY

MODULE

3-25
 Chapter 4 - Configuration

CHAPTER 4 - SYSTEM CONFIGURATION

Chapter Four covers procedures for configuring the HI 2151/30WC
Weight Controller. System Configuration includes only hardware
adjustments such as Jumper and Dip Switch settings. We recommend
that maintenance personnel be familiar with this chapter before config-
uring the weight controller. Alternative configuration procedures are
not recommended.

Standard RS-232C/RS422/
485 Configuration
Procedures.

About RS 232/RS422/ The RS 232/RS422/485 Bi-directional serial ports are configured by

485 Bi-directional setting jumpers, dip switches and are also setup from the front panel.
Serial Ports (See The setup instructions are located in Chapter 5- System Setup Bi-direc-
Chapter 5, for Setup tional Serial Ports. The jumpers and dip switches are located on the
Procedures) Main board. (See Fig. 4-1)

Dip Switch
Location
Jumper Location

FIG. 4-1 MAIN BOARD JUMPER AND DIP SWITCH LOCATIONS

4-1
HI 2151/30WC MANUAL

Setting the Jumpers

WARNING
DANGEROUS VOLTAGE IS PRESENT WITHIN THE ENCLOSURE OF
THE INSTRUMENT AND PRESENTS A RISK OF ELECTRICAL SHOCK.
ALWAYS UNPLUG THE POWER CORD BEFORE OPENING AND SERVIC-
ING THE INSTRUMENT.

CAUTION SERVICING OF THIS UNIT SHOULD BE PERFORMED BY AUTHORIZED

AND QUALIFIED SERVICE PERSONNEL ONLY. FOLLOW ALL ELECTRO-
STATIC DISCHARGE (ESD) PROCEDURES WHEN OPENING THE
INSTRUMENT.

NOTE: Remove jumpers with all barriers.

Step 1. Disconnect the power cord.

Step 2. Use a phillips screw driver and remove the four (4) pan-head
machine screws that fasten the rear panel to the extrusion.
(See Fig. 4-2)
Step 3. Gently pull out the rear panel with the printed circuit boards
attached. The main board is in clear view.

Phillips pan
head machine
screws

FIG. 4-2 REMOVING THE REAR PANEL

CAUTION WHEN OPENING THE BACK OF THE HI 2151\30 WC, MAKE SURE THAT
YOU USE PROPER ELECTROSTATIC DISCHARGE PROCEDURES TO
PREVENT DAMAGE TO THE INSTRUMENT.

Step 4. If an option board is installed above jumpers, remove the

option board.
Step 5. The factory default position is for the RS-232 setting. (See
Fig. 4-3) The dip switches do not function when in the RS-
232 configuration.

4-2
 Chapter 4 - Configuration

Step 6. To select the RS 422/485 ports, move the jumper to the RS

422/485 position. (See Fig. 4-3)
NOTE: The selection for the RS 422 or the RS 485 is done from the front panel.

RS 422/485 RS 232
JP1
RS 232 JUMPER SETTING

RS 422/485 RS 232
JP1
RS 422/485 JUMPER SETTING

FIG. 4-3 RS-232 (DEFAULT), S422/485 JUMPER SETTINGS

Step 7. If the controller is not in a termination position, set all the dip
switches to the OFF position. (See Fig. 4-4)
Step 8. If the controller is in a termination position (i.e. at the end of
the communication line) set all the dip switches to the ON
position. (See Fig. 4-5)
5

1
6

2
ON

FIG. 4-4 NON TERMINATING CONTROLLER, ALL DIP SWITCHES SET

IN THE OFF POSITION

4-3
HI 2151/30WC MANUAL

1
6

2
ON
FIG. 4-5 TERMINATING CONTROLLER, ALL DIP SWITCHES
SET IN THE ON POSITION

Step 9. Replace the option board.

Step 10. Gently slide the rear panel back into the extrusion
Step 11. Replace the four pan-head machine screws that fasten the rear
panel to the extrusion.
Step 12. Connect the power cord.

Analog Output Option

Card Configuration
Procedures -B1

About the Analog The analog transmitter outputs to a receiving device (PLC, Computer
Output Card Option etc.). The transmitter outputs a user selectable Gross, Net, Rate of
Change (ROC), Peak or Total Weight as 0-5V, 0-10V, 0-20mA, or 4-
20mA (via the front panel you can reverse the voltage and current
ranges, See Chapter 5 for procedures). When configuring the Analog
Output Card, both the receiver and the HI 2151\30WC must be in
the same mode (e.g. Gross, Net, Rate of Change (ROC) Peak or
Total Weight). The analog card can also span the voltage or milliamp
ranges over a portion of the weight data. The outputs are electrically
and optically isolated from the main board. The Analog Output Card is
adjusted at the factory. (See Chapter 5, Section 5.6 for Setup Instruc-
tions)

Setting the Jumpers

Disassembling the Step 1. Repeat steps 1-4 above. (See Fig. 4-2)
rear panel and
Step 2. Set the jumper that matches the system's feedback voltage or
setting jumpers
current configuration. (See Table 4-1)

4-4
 Chapter 4 - Configuration

JUMPER CONFIGURATION CHART

CURRENT VOLTAGE JUMPER

0-20 mA/0-5V W1 & W3

0-20mA/0-10V (Factory Default) W1 & W4

4-20mA/0-5V W2 & W3

4-20mA/0-10V W2 & W4

TABLE 4-1: ANALOG OUTPUT JUMPER SETTINGS

NOTE: W1 & W4 are factory default settings.

Reassembling Rear Step 1. Gently slide the rear panel back into the extrusion.
Panel Step 2. Replace the four pan-head machine screws that fasten the rear
panel to the extrusion.
Step 3. Connect the power cord.

Front Panel Setup To complete the Analog Option Card installation, you must complete
Procedures the Setup procedures before operating the system. (See Chapter 5 for
instructions)

Analog Card Step 1. Slight adjustments may be necessary to insure that the display
Adjustment on your Programmable Logic Controller reads precisely with
the display on your weight controller. Use the procedure
below which corresponds to the input card in your PLC.
Step 2. Make sure the Analog Option card is programmed correctly
prior to performing any adjustments.

Voltage Step 1. If 0 volts represents other than empty put weight on your load
cells equal to your 0 volt selection.
Step 2. Otherwise, with the hopper empty adjust R4 for the correct
reading
Step 3. Put weight on your load cells equal to your 10 volt selection.
Adjust R16 for the correct reading.

Current Step 1. Put weight on your load cells equal to your 4 ma selection, if
4 ma represents other than empty. Adjust R19 for the correct
reading.
Step 2. Put weight on your load cells equal to your 20 ma selection.
Adjust R5 for the correct reading.

4-5
HI 2151/30WC MANUAL

0535-0406- REV- ANALOG OUT PWA CR1

C17
-
+
1 25
2 26 TP2

CR3
CR4
R20

R21
P1 + ISO

C18
U7
GND

R2
U5

U2
C1 + C E

C11
VR2 VR4 Q3

R1
C20 VR3
C13 C16

R3
O I 6
TP1 C21 C24 C25
C2

RN2
C7 R7
C9

Q2
R8 C22 C23 G

RN1

U3
D
R9 W

C14
C5 1

R6
R10
2

R17
R18
Q1 R11 3

C15
C3
S D D 4

U4
U1 C8 R12

CR2
C6 U9
U10
R13 C26
R14
U6 1
R15 J1
C19 R16 R19
C4 S/N U8 R4 R5

Voltage Span
Voltage Zero

Current Span Current Zero

FIG. 4-6 ANALOG OUTPUT BOARD

Parallel BCD Board Print

Configuration Procedures -
B2, -B5, -B9

About the BCD Board Some receivers require either a positive (high) pulse or a negative (low)
Print Output Signal when printing. Select the jumper that meets the receiver input signal
requirements.

Jumper Location The switch is marked W1 W2 in the top center of the board.

Jumper Settings (See • Positive Pulse = W1

Fig. 4-7 and 4-8) • Negative Pulse = W2 (Default)
W1

W1
W2

W2

Positive Negative
Pulse Pulse
FIG. 4-7 BCD CARD JUMPER SETTING FOR POSITVE PULSE
FIG. 4-8 BCD JUMPER SETTING FOR NEGATIVE PULSE

4-6
 Chapter 4 - Configuration

Calibration Configuration When the security code is not available, the config dip CAL switch
Procedures When Security (S3) on the rear panel can be toggled to enter the CAL menu. (See
Code is not Available Chapter 5, Section 5.2, sub paragraph 9 for setup instructions) When
you press the CAL button at the front panel, and the CAL switch (S3) is
not toggled, the display will read ERR 8. Simply perform the following
procedures to enter the Calibration Menu.

Dip Switch Location

(See Fig. 4-9)

A Subs
i diar yof Dynami cInst u
r mentsI nc.

Calibration
Dip Switch

FIG. 4-9 CAL TOGGLE SWITCH LOCATION

Step 1. Change the position of the toggle switch (#2). (For Calibra-
tion procedures See Chapter 5, Section 5.4)
Step 2. Check to see if the CTR ZERO, MOTION, and ZERO
TRACK leds are flashing.

Auto Zero Tolerancing

Configuration Procedures

About Auto Zero When the Auto Zero Tolerance is enabled, any weight within the
Tolerancing entered tolerance of zero and not in motion, will cause the display to
automatically read zero.

NOTE The amount of weight zeroed off is cumulative. The zero command will fail if the current
gross weight plus any previously zeroed amount exceeds the zero tolerance.

4-7
HI 2151/30WC MANUAL

Dip Switch Location

(See Fig. 4-10)

A Subsida
i r yof D n
yamic Inst u
r mentsI nc.

Auto
Zero
Tolerance
Dip Switch

FIG. 4-10 AUTO ZERO DIP SWITCH SETTING

Dip Switch Setting Step 1. To enable the Auto Zero Tolerancing, set dip switch #8 to ON.
Step 2. To disable the Auto Zero Tolerancing, set dip switch #8 to
OFF.

Configuring Peak Hold

Mode

About Configuring Highest gross or averaged gross is selectable on dip switch S2 position
Peak Hold number 2, located internally on the Main Controller board. (See Fig. 4-
11)
NOTE: Dip Switches S2 on the Power Relay Board are all normally in the OFF position.
Contact Hardy Instrument Customer Support Department before changing any of
these switch positions.

4-8
 Chapter 4 - Configuration

FIG. 4-11 PEAK HOLD MODE DIP SWITCH LOCATION

Configuring Multidrop S3-1 When the switch is ON it enables communication to more than one
controller on the same line. To use the Multidrop function the Hardy
Link software option must be installed. Multidrop is only available
when using the RS-422/485 serial port setting.

Configuring Serial S3-3 1. Serial Port Lockout. When the switch is ON, the following com-
mands cannot be executed over the serial interface:

Format
Set Setpoints

2. When the Serial switch is OFF it enables these commands. OFF is

the default position.

Configuring Option S3-4 1. When the switch is ON, there is no access to the Option Menu.
2. When the switch is OFF, the full Option menu is available.

Configuring Set Point S3-5 1. When the switch is ON, there is no access to the Set Point Menu.
2. When the switch is OFF the Set Point Menu is available.

Set Point S3-6 Not Used.

Configuring Lock S3-7 1. When the switch is ON, the Tare, Mode, Zero, and lb/kg keys are
locked out or not available.

4-9
HI 2151/30WC MANUAL

2. When the switch is OFF, Tare, Mode, Zero, and lb/kg keys are
available.

Configuring the Power & FIG. 4-12 POWER & RELAY BOARD DIP SWITCH LOCATION
Relay Board Dip Switches
S2 (See Fig. 4-12) 1. When the switch is ON, incoming checksums are ignored. When
the switch is OFF incoming checksums are read.
2. S2-2 - When the switch is ON, the Peak Hold signal read is aver-
aged. When the switch is OFF, the Peak Hold signal is instanta-
neous.
3. S2-3 - When the switch is ON, the instrument is in the NBS mode
of operation. Resolution is limited to 1:10,000 counts. When the
switch is OFF, the resolution is 1:985,000.
4. S2-4 - This switch must be toggled (position changed) to enter NBS
calibration from the front panel CAL button.
5. S2-5 - Turns Off > character on print output serial port.
6. S2-6 - Puts unit in Blind Remote Mode.
7. S2-7 - is not used.
8. S2-8 - is used for resetting Calibration & Configuration to the Fac-
tory Defaults

4-10
 Chapter 5 - Setup

CHAPTER 5 - SETUP
Chapter 5 covers firmware settings to prepare the controller for calibra-
tion and operation. User and service personnel should be familiar with
the information in this chapter before going through the setup proce-
dures. Alternatives to these procedures are not recommended.

Keypad Functions (See

Fig. 5-1)

8.8.8.8.8.8

FIG. 5-1 FRONT PANEL

Zero • Used in Gross mode to zero the display to within the tolerance
level.
• This function can be used as many times as desired as long as the
total does not exceed the value entered as the zero tolerance.
• The zero key is also used to exit a menu after entering number(s)
without changing the original number. For example - when entering
a Span value (18), the user decides that the original number (15) is
OK. By pressing the Zero Key you can exit the menu without
changing the original number (15), even though you have typed
new numbers and they appear on the display.

Mode • In standard controllers, the mode key toggles between gross and net
weight.
• In controllers with any one or all of the mode options (Total Mode,
Peak Hold Mode, or Rate of Change Mode) installed the mode key
toggles between gross/net weight and the option(s).

NOTE: To order Total, Peak or ROC options, contact your local Hardy Representative or
call/FAX/E-mail Hardy Process Solutions, Sales Department.

Tare • The Tare button captures the current Gross weight at the instant the
Tare button is pressed and places it in the tare register setting the
Tare Value. The tare value is the difference between the Net (e.g.
Vessel weight) and Gross weight (e.g. vessel weight + material

5-1
HI 2151/30WC MANUAL

weight). You can also type in the Tare Value by using the 1/Tare Val
key.
• The Tare function can also be actuated by activating the appropriate
remote function pin. See Remote Function Configuration in Chap-
ter 4.

Print Transmits data to the printer.

NOTE: The serial port must be configured as a printer. If the serial port is not configured as a
printer port, the print key is not going to respond, and you cannot print.

NOTE: The print function cannot print data if the weight is in motion or exceeds the capacity
of the scale.

—/Test/Clr • The Test/Clr function Initiates one of the selected tests

• Self Test - "SLFTST" on the display.

• Integrated Technician - "IT SEC" on the display.

• This (—) key is used to enter a minus sign (-) for a negative num-
ber. This function can be used only when the display reads the num-
ber 0.
• The clear "CLR" function is operable when the controller is a menu
requiring a numeric input. Use CLR to clear the display before
entering a new value.

1/Tare Val • This function displays the current Tare value stored in the Tare Reg-
ister. (See paragraph 5.1.3)
• This function allows the user, after pressing the "Clr" button, to
enter a Tare Value using the numeric keys. To exit the Tare Val
menu press the Zero button.
• The key also enters the digit "1."

2/Status/Bar • The Status/Bar toggles between the mode settings and the bar
graph.
• The Status function indicates the following:

• Selected Mode
• Selected Engineering Unit: lbs/kg
• Status of Relays 1 & 2

• The Bar Graph function displays in graphical form the value of the
mode (Total, Gross, Net, ROC, Peak) selected in the bar graph
setup menu. (See Fig. 5-2)
NOTE: The bar graph mode and the display mode are totally independent. Make sure you
know what mode each are in before reading.

• The key also enters the digit "2."

5-2
 Chapter 5 - Setup

3/Lb Kg • Toggles between read pounds (Lb.) or kilograms (Kg.).

• The key also enters the digit "3."

4/↑ • This key moves forward through a menu, step by step and will wrap
to the beginning of the menu.
• The key also enters the digit "4"
• Resumes the Self Test

Bar Graph

FIG. 5-2 FRONT PANEL, BAR GRAPH DISPLAYED

5/← • Moves the decimal point position to the left when in Calibration
Mode.
• Selects user selectable formats in the serial and optional BCD
menus.
• The key also enters the digit "5".

6/Set Pt • This key is used to enter the Set point Menu

• Values for standard and optional Relays.

Set point Values

Deadband Values
Preact Values

• The key also enters the digit "6".

7/Option • This key selects the standard serial ports and available option
menus:

• Rate of Change

5-3
HI 2151/30WC MANUAL

• Analog Transmitter(s)
• BCD Port
• Remote I/O
• PROFIBUS

• The key also enters the digit "7".

8/Cal • This key opens the Calibration set up menu.

• The key also enters the digit "8".

9/↓ • This key moves backward through a menu, step by step and will
wrap to the beginning of the menu.
• Selects user selectable formats in the Serial and optional BCD
menus.
• Pauses the Self-Tests.
• The key also enters the digit "9".

0/Exit • This key Exits a menu/sub-menu back to the normal operating

mode when text is on the screen
NOTE: The zero key is used to exit a menu when numbers are entered (See Zero).

• The key also enters the digit "0".

Enter • When changing numerical values in a sub-menu, this key accepts or

rejects the value.
• When a value is accepted a "GOOD" message will appear on the
display and step forward to the next item on the menu.
• When a value is rejected, an "ERR" message appears on the display
along with the entered value, allowing the user to change the value.
For a list of error messages see Chapter 7, Troubleshooting.

5-4
 Chapter 5 - Setup

Block Diagram

Card B
Card A

Option
Option
Option

Drivers
Card
Bus

Display and
Keypad
Configuration
Switches
Driver
Relay
Microcontroller
32k X 16-bit

Functions
Remote
RAM

Removeable

2k x 8-bit
EEPROM
64k x 16-bit
EPROM

2k x 8-bit
Resident
EEPROM
Interface

TXD
Serial

RXD

RTS
Exc itation Monitor

CTS
Interface and
Diagnostics
Load Cell

RS-232C, RS 422/485 Bi- Step 1. Check the jumpers and dip switches to see that they are in the
directional Serial Port correct position. (See Chapter 4)
Setup Procedures
NOTE: Remove jumpers with all barriers.

Step 2. Press the Options button.

Step 3. Select the Serial Port (SERPRT) sub-menu.
5-5
HI 2151/30WC MANUAL

Step 4. Press the Enter button. RS-232 appears. RS-232 is the default
setting from the factory.
Step 5. To select RS-232, press on the Enter button.
Step 6. To select another port use the up or down arrows to select
another serial option.
Step 7. Select either RS-422, or RS-485.
Step 8. Press the Enter button to set the port setting. If the jumpers are
in the correct position the unit accepts the setting. Press exit to
return to the main menu.
Step 9. If the jumpers are not in the correct position or there are no
jumpers installed, a jumper error (JMPERR) will appear.
• Go through the configuration again to select the correct
jumper position or install a jumper in the correct position.
(See Chapter 4 for instructions.)
• Repeat steps 2 - 8.
• Press the Enter button to set the port setting.
• Press the Exit button to return to the main menu.

Bar Graph Setup

Procedures

About Bar Graph The user can set the bar graph parameters by entering the lowest weight
Setup (value) and the highest weight (value) of the scale or any portion of the
scale. When the user selects the Bar Graph function, the bar graph dis-
plays the current reading as a percentage of the selected scale range
(e.g. 60 pounds on a scale from 0-100 lbs will read 60%). The bar graph
can be setup to indicate Net Weight, Gross Weight and the options
Totalizer, Rate-of-Change and Peak. Keep in mind that the bar graph
can be totally independent of the displayed values.
Step 1. Press the Options button. The Options (OPTINS) sub-menu
appears.
Step 2. Press the up arrow until BAR GR appears.
Step 3. Press the Enter button. BAR LO appears. This is the sub-
menu to select the lowest weight in the selected scale range.
Step 4. Press the Enter button.
Step 5. If a value is present, press the test/clear button to clear the
value. Use the numeric key pad to enter the new low value.
Step 6. Press Enter to select the new value. A GOOD will appear
briefly if the setting is correct.
Step 7. BAR HI appears This is the sub-menu to select the highest
weight in the selected scale range.
Step 8. Press the Enter button.

5-6
 Chapter 5 - Setup

Step 9. If a value is present, press the test/clear button to clear it. Use
the numeric key pad to enter the new high value.
NOTE: It is important to know that the high setting can be a lower value than the low setting,
which is necessary for some applications such as dispensing. The high setting value
can also be a negative number.

Step 10. Press the Enter button.

• A GOOD will appear briefly if the setting is a value other
than the value for the low setting.
• An ERR will appear if the value is equal to the LO value.
• To correct the error, simply set the high value to a value
other than the low value.

BCD Menu Setup

Procedures

About BCD The BCD option board provides parallel output of a sensed gross, net,
Communication or tare weight. The BCD option is setup by first entering the Option
(See Section 4 for Menu and selecting the FORMAT menu.
Configuration The menu display shows a combination of GNTDP (G = gross, n = net,
Procedures) T = tare, D = display, P = print).

BCD Print • The weight select mode tells the output device which type
of data is present.
• The user selects which type of data is desired by toggling
"GNT" under the Option/BCD sub-menu.
• If all three types of data are requested, then all three will
appear on the output one after the other, 10 milliseconds
apart.
• If "D" is selected, the output will follow the mode being dis-
played.

Setup Procedures Step 1. Press the 7/Option key. This gives the user access to the Setup
Sub-Menu. ROC or another option displays.
NOTE: The display may show an option other than "ROC", depending upon which options
were installed. The HI 2151/30WC will show the first available option, in our exam-
ple, ROC.

Step 2. Press the up or down arrow until the sub-menu BCD P1

appears.
Step 3. Press the Enter Button, the FORMAT sub menu appears.
Step 4. Press Enter. A series of letters (GNTDP) and spaces appear.
For example: G N _ _ D P. Note that in our example the “T” is
not displayed and that there are 6 spaces total. The sixth
value is used in other communication protocols.

5-7
HI 2151/30WC MANUAL

Print Output Options

If you want to print mode value(s) selected, such as G (Gross weight),
N (Net weight) or T (Tare) on demand, select "P."

a. Press the up or down arrow until the letter "P" appears.

b. Now when the Print button is pressed it will print the
Gross, Net, or Tare weights, whichever one is selected.
c. If you select all three, "GNT", it will print all three in
sequential order.
NOTE: If your input device cannot handle rapid input of data, do not select more than one
mode.

• If you don't want this function, press the up or down arrow

until a space "_" appears.
• To output what appears on the display, select "D".
a. Press the left arrow one time to select "D" (BCD).
b. Press the up or down arrow until the "D" appears.
c. Now whatever mode appears on the display it is output.

• If you do not want output, press the up or down arrow until

a space appears "_".

Step 5. Output Mode Options

• Tare Mode
a. Press the left arrow two times to select "T".
b. Press the up or down arrow until the "T" appears.
c. Now when the Output is triggered by the BCD Control-
ler, the Tare Weight is sent.
d. If you do not want to select the Tare mode, press the up
or down arrow until a space appears "_".

• Net Mode
a. Press the left arrow one time to select "N".
b. Press the up or down arrow to until the N appears.
c. Now when the BCD Controller triggers the output, the
Net Weight is sent.
d. If you do not want to select Net mode, press the up or
down arrow until a space appears "_".

• Gross Mode
5-8
 Chapter 5 - Setup

a. Press the left arrow on time to select "G".

b. Press the up or down arrow until the G appears.
c. Now when the BCD Controller triggers the output, the
Gross Weight is sent.
d. If you do not want to select Gross mode, press the up or
down arrow until a space appears "_".

Step 6. Press the Exit button three times to return to the Main Menu

Serial Port Menu Setup • The standard serial port is setup through the option menu and is
Procedure (See Chapter identified as SER P1.
4 for Configuration
Procedures) • The following is a brief description of each parameter, followed by
details on menu operation.

DISPLAY MEANING

SERCON Serial port configuration. The port can be used as

either a print output port or as a bi-directional
communication port.

BAUD Baud rate selection. The baud rates that can be

selected are: 1200, 2400, 9600, or 19,200.

PARITY Parity selection for transmission error detection.

Allows parity to be set at even, odd, or no parity.

STOPS Stop bit selection. Sets number of bits used to

indicate end of a transmission frame. The number of
stop bits can be set to 1 or 2.

LENGTH Word length selection. Sets the number bits for each
data word. Word length can be set to 7 or 8 bits.

FORMAT Formats the serial data output. To configure the

output use the left arrow button to select the code
letter corresponding to the specific parameter(s).
When the letter is flashing use the up or down arrow
buttons to toggle the code letter on the display. To
enable a specific parameter, the code letter must be
shown on the display. Pressing the -/Test/Clr button
will restore all code letters. The codes are:

G Gross Weight
N Net Weight
T Tare Value
R Rate of Change (ROC)
S Set point, Deadband, Preact Values

5-9
HI 2151/30WC MANUAL

DISPLAY MEANING

PRINT Selects print mode. P sets print trigger and "-" sets
continuous output.
BI-DIR Selects bi-directional mode. The bi-directional
codes are:

A Altered print (removes checksums)

P Bi-directional with print trigger
- Bi-directional without print trigger.
ADDRESS Selects the instrument address. This is a two digit
value, being 01 to 99.

ECHO Selects whether instrument commands are returned

or displayed. Echo can be turned on or off. If the
(bi-directional only) Echo is turned on, commands
sent to the instrument are returned. If turned off,
only data transmitted from the instrument will be
displayed.

CONTRL Selects hardware and software handshaking

control. The hardware mode controls Request to
Send (RTS) lines. In this mode the receiving device
must set Clear to Send (CTS) lines to high to enable
transmission. The software mode controls the trans-
mission by the following control codes:

XOFF - (CTRL-S) halt transmission

XON - (CTRL-Q) resume transmission

When a serial port is configured for bi-direc-

tional communication with a Print Trigger for-
mat, the control port will respond to the remote
function print or serial print command just like a
print port.

Serial Procedures
NOTE: If you have a problem with weight readings not changing or not being able to exit
from a menu, check to see that the instrument has not been set in the Display Hold
mode by a serial command. A C H (change hold) command will toggle between Hold
and Unhold. There is no visual indication showing the present mode.

Step 1. Enter the Option Setup Menu by pressing the 7/Option button.
The Rate of Change Sub-Menu ROC appears.
NOTE: Display may show an option other than "ROC", depending upon the options installed.
The HI 2151/30WC will show the first available option, in the example, ROC.

5-10
 Chapter 5 - Setup

Step 2. Press the up arrow ↑ until the Serial Port 1 SER P1 is dis-
played on the screen.
Step 3. Press the Enter button twice. First the Serial Connect display
SERCON appears; then the Bi-directional or Print appears.
BI - DIR or PRINT
Step 4. Use the up or down arrows ↑↓ to choose between bi-direc-
tional BI - DIR or PRINT. We used bi-directional for the
example below.
Step 5. Press the Enter button twice. First the Serial Type Sub-Menu
SERTYP appears; then the Configured Serial Protocol
appears. For Example RS-232. (See Chapter 4 for Configura-
tion Information)
NOTE: If the Serial Protocol number displayed is not the one you want, STOP the setup pro-
cess. Reconfigure the serial protocol (See Chapter 4) and begin the setup procedures
again.

Step 6. Press the Enter button twice. First the Baud Rate Sub-Menu
BAUD appears; then the current preset BAUD rate is dis-
played.
Step 7. Use the up or down arrow ↑↓ buttons to select 1200, 2400,
4800, 9600, or 19,200. The example uses 19,200 BAUD.
Step 8. Press Enter twice. First the Frame sub-menu FRAME
appears; then 8-N-1 appears.
Step 9. Press the down arrow ↓ button five times. First 7-0-1 appears,
then 7-E-1 appears, then 8-N-2 appears, then 8-0-1 appears,
and finally A-E-1 appears.
Step 10. The down arrow ↓ is used to select the Frame you want.
When the frame selection you want appears press the Enter
button. FORMAT appears.
Step 11. Press the Enter button. Gross, Net, Tare, Rate of Change, Set
Point, Print, either one G-----, or any combination such as G-
T--- or all GNTRSP may appear.
Step 12. Use up arrow ↑ to select "P" (to output on demand), or "_" (to
output continuously).
• Use the left arrow ← to move cursor one space to the left to
highlight the letter "S". The "S" starts flashing.
• Use the up arrow ↑ to select "S" (to output set points) or "_"
(will not output set points).
• Use the left arrow ← to move the cursor one space to the
left to highlight the letter "R". The letter "R" starts flashing.
• Use the up arrow ↑ to select "R" (to output the rate of
change), or "_" (will not output rate of change)

5-11
HI 2151/30WC MANUAL

• Use left arrow ← to move cursor one space to the left. The
letter "T" starts flashing.
• Use the up arrow ↑ to select "T" (to output the tare value),
or "_" (tare value will not be output).
• Use left arrow ← to move the cursor one space to the left.
The letter "N" starts flashing.
• Use up arrow ↑ to select "N" (to output net weight) or "_"
(will not output net weight).
• Use the left arrow ← to move the cursor one space to the
left. The letter "G" starts flashing.
• Use up arrow ↑ to select "G" (to output gross weight), or
"_" (will not output gross weight).
NOTE: At least one of the letters "G", "N", "T", "R", or "S" must be selected or Error 54 will
be displayed.

Step 13. Press the Enter button twice. First the control Sub-Menu
CONTRL appears; then SOFTRE or HARDRE appears.
Step 14. Use the up or down arrows ↑↓ to select either option.
Step 15. Press the Enter button twice. First the Echo Sub-Menu ECHO
appears; then ON or OFF will be displayed).
Step 16. Use the up or down arrows ↑↓ to select either parameter. For
our example select OFF.
Step 17. Press the Enter button twice. First the Address Sub-Menu
ADDRES appears; then the current two-digit address appears.
Step 18. Press the -/Test/Clr button to clear the display.
Step 19. Enter the desired instrument address, 99 maximum. 10 (unit
10 is used for this example).
Step 20. Press the Enter button three times to return to the weight dis-
play and normal operation.
NOTE: * Available only when "BI-DIR" mode is selected

Analog Output Setup

Procedures (Option)

About Analog The analog output option allows the user not only to output gross, net,
Output (See Chapter ROC, Peak, or total weight as 0-5V, 0-10V, 0-20 mA or 4-20 mA (or
4 for Configuration the reverse of these via the front panel), but makes it possible to span
Procedures) these ranges over a portion of the weight data. A full analog output is
obtained over the range desired. Resolution of the analog out is 16,000
counts, or the number of display counts available in the range selected,
whichever is less. All of this is accomplished via the front panel or the
serial port. Two analog option boards may be installed in each unit.

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 Chapter 5 - Setup

Analog Output Step 1. Press the 7/Option button. ROC appears.

Menu Setup Step 2. Press the up arrow until Analog Output 1 ANAOUT1 or
Procedures Analog Output 2 ANAOUT2 is displayed.
Step 3. Press the Enter button. ANLO appears.
Step 4. Press Enter button.
Step 5. Press -/Test/Clr button to clear the entry.
Step 6. Use the numerical keypad to enter the value desired. (Enter (-
) for loss-in-weight systems.)
Step 7. The value displayed will equal 4 milliamps, 0 milliamps, or0
volts, depending on which output and configuration is used.
Step 8. Press the Enter button. A GOOD will momentarily appear and
AN HI appears.
Step 9. Press the Enter button.
Step 10. Press -/Test/Clr button to clear the entry.
Step 11. Use the numerical key pad to enter the numerical value
desired. (Enter (-) for loss-in-weight systems.)
Step 12. The value displayed will equal 20 milliamps, 10 volts, or 5
volts, depending on which output and configuration is used.
Step 13. Set mode by pressing the MODE button until the cursor is
flashing under the desired option. Select from total, gross, net,
ROC, or peak. The default is gross.
Step 14. Press the Enter button. AN - LO re-appears.
Step 15. Press the Exit button. ANOUT re-appears.
Step 16. Press the Exit button again to return to the weight display.
NOTE: Display may show an option other than "ROC", depending upon the option boards
installed.

NOTE: Previously set numerical value will be displayed. "0" is the default.

NOTE: Display momentarily flashes GOOD if value is a valid entry.

Setting the Rate of Step 1. To select Rate of Change Mode: Push the MODE button until
Change Procedures the ROC LED indicator is lit
Step 2. Press the 7/Option button. ROC appears.
Step 3. Press the Enter button. UNITS appears.
Step 4. Press the Enter button. U-SEC appears.

NOTE: Previously set time value will be displayed. For this example, the time value will be
set to seconds.

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HI 2151/30WC MANUAL

Step 5. Use the up ↑ or down arrows ↓ to select the appropriate mea-

surement of time (seconds U-SEC, minutes U-MIN, or hours
U-HR).
Step 6. Press Enter button. BASE appears.
Step 7. Press the Enter button.
Step 8. Use the up or down arrows to select time base from one of the
following: 1, 2, 3, 4, 5, 6, 10, 12, 15, 30, 60, 120,240, 450,
900, or 1800.
Step 9. Press the Enter button. The UNITS re-appears.
Step 10. Press the Exit button twice to return to the weight display.
NOTE: Display may vary depending on which options were installed in your instrument. The
HI 2151/30WC will show the first available option, in this case, ROC.

TOTAL Setup Step 1. Via the Calibration Menu, select the desired decimal point
Procedures position.
Step 2. To add weight value to the Total Register: The current net
weight displayed will be added to the net weight accumulated
in the total register when the total remote function input is
detected (this is accomplished by providing a momentary
switch to the remote function connector between J2, Pin 8 and
J2, Pin 9 or 10.

Set Up for Profibus See the Profibus Interface Option, Card Operation and Installation
Interface Card Option - Manual #0596-0231 for complete instructions.
B12

Allen-Bradley Remote I/O See the Allen-Bradley Remote I/O Installation and Operation Manual #
Option -B8 0596-0173 for complete instructions.

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 Chapter 6 - Calibration

CHAPTER 6 - CALIBRATION
Chapter 6 covers calibration procedures for the HI 2151/30WC weight
controller. Users and service personnel should be familiar with these
procedures before installing or operating the HI2151/30WC.
For the weight controller to work properly, it must be calibrated prior to
operation. We also recommend that the instrument be re-calibrated
periodically or when not in use for extended periods. Be sure to follow
the procedures completely to ensure that the weights read by the con-
troller are accurate.
All calibration should be done in the Gross mode.

Pre-Calibration Procedures

Mechanical Check Step 1. Check to determine if the load cells have been installed prop-
Procedures erly.

• Refer to your load cell I&M manual for proper installation

instructions.
• On some single and double ended shear beam load cells
there is an arrow (↓) that indicates the direction of the
applied load. If the arrow is pointing in the wrong direction,
change the position of the load cell so that it is mounted in
the direction of the applied load.

Step 2. Check for Binding on the Load Cell or other parts of the sys-
tem.
CAUTION BINDING ON A SCALE/VESSEL OR LOAD CELL DOES NOT ALLOW THE
LOAD CELL FREE VERTICAL MOVEMENT AND MAY PREVENT THE
INSTRUMENT FROM RETURNING TO THE ORIGINAL ZERO REFER-
ENCE POINT.

• A load cell must be mounted in such a way that 100% of the

load (Vessel w/Contents) is vertically passed through a load
cell. (See Fig. 6-1)
• Check to see that nothing is binding the load cell. This
means that nothing is draped across the scale/vessel or the
load cell, such as a hose, electrical cord, tubes, or other
objects.

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HI 2151/30WC MANUAL

Direction of
the applied
load

Vessel

FIG. 6-1 PROPERLY INSTALLED LOAD CELL W/NO BINDING

Step 3. Check to see that nothing is coming in contact with the scale/
vessel other than service wires and piping that have been
properly mounted with flexible connectors.

Electrical Check Step 1. Check to see that there is power to the controller.
Procedures
• If there is power to the controller The front panel display
should be lit.
• If an error message (ERREXC) appears in the display, it
means there is a problem in the system. See Troubleshoot-
ing Chapter 8 for corrective action.
• If the display appears with a value the unit is ready for cali-
bration.

Step 2. Typical Load Cell/Point Input/Output Measurements (EXC &

SIG Outputs)

• The HI 2151/30WC is designed to supply 5 vdc excitation

to as many as eight 350 ohm load cells/points.
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 Chapter 6 - Calibration

• The expected output from each load cell/point depends on

the mV/V rating of the load cell/point and weight.
• For example, a 2 mV/V load cell/point will respond with a
maximum of 10 mVDC at full weight capacity of the sys-
tem which includes the weight of the vessel and the weight
of the product as measured by the load cell/point.
• If the load cell/point weight capacity is rated at 1000
pounds, the load cell/point output will be 10 mVdc at 1000
pounds, 7.5 mVdc at 750 pounds, 5 mVdc at 500 pounds
and so on.
• A zero reference point will vary from system to system
depending on the "Dead Load" of the vessel. "Dead Load"
is the weight of the vessel and appurtenances only, with no
product loaded. In our example we will assume the dead
load to be 500 lbs. (See Fig. 6-2)

10
MAXIMUM LOAD CAPACITY
9

7
MILLIVOLTS DC

5
DEAD LOAD 500#
4 ZERO REFERENCE POINT

250 500 750 1000

WEIGHT IN POUNDS

FIG. 6-2 MILLIVOLTS/WEIGHT SCALE

• Based on the example, the operating range for this scale is

5-10 mVdc with a 500 pound weight range. Understand that
after zeroing the instrument, the 0 reading on the instrument
refers to the zero reference point and not absolute 0 mVdc
or absolute 0 weight.
NOTE: Load cell/point measurements are checked with a digital volt meter at the summing
junction box or the J1 connector on the rear panel of the HI 2151/30WC or use Inte-
grated Technician. if using the IT Junction Box.

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HI 2151/30WC MANUAL

Step 3. Allow the controller to warm up for about 15 minutes before

doing the calibration procedures.

Fourteen Segment The display is a six-digit, fourteen segment display with selectable dec-
Display imal placement. The display can show positive values up to 999999 and
negative values down to -99999. The LED display shows operational
status messages as well as actual numeric values. (See Figs. 6-3 & 6-4)

8.8.8.8.8.8

FIG. 6-3 FRONT PANEL DISPLAY WITH NUMBERS

ITSEC

FIG. 6-4 FRONT PANEL DISPLAY WITH TEXT

Combination Status • There are 30 discrete LEDs above the fourteen segment display,
Indicator/Bar-Graph that function as status indicators and a bar-graph display. (See Fig.
LEDs 6-5)
NOTE: The status indicators use every other led whereas the bar graph uses all thirty when
displayed.

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 Chapter 6 - Calibration

IT SEC

FIG. 6-5 FRONT PANEL STATUS LEDS DISPLAYED

• To switch between status and bar graph display, press the Status/
Bar button. In the status mode, LEDs will light to indicate the fol-
lowing weight controller conditions:

DISPLAY MEANING

CTR ZERO Indicates when the sensed weight is within 1/4 of a

display grad of calibrated zero.

MOTION Indicates when the variation in consecutive weight

readings exceeds the calibrated motion tolerance.

ZERO TRACK Indicates when the zero track function is activated.

Zero track is toggled on or off by the 0 Trk
dipswitch (S3) on the rear panel.

RELAY 1 The status relay LED flashes when the respective set
point value has been reached. Indication is only for
the standard, internal set points.

6-5
HI 2151/30WC MANUAL

DISPLAY MEANING

RELAY 2 The status relay LED flashes when the respective set
point value has been reached. Indication is only for
the standard, internal set points.
GROSS/NET Indicates the mode of the measured value on the
display. All calibration should be done in Gross
mode.
TOTAL/ROC Indicates the mode of operation currently PEAK
configured.
NOTE: Total, Rate-of-change, and Peak are options that must be installed before these led
indicators will function.

Lb/Kg Indicates U.S. or metric unit-of-measure of the

weight parameter on the display.
Bar Graph The Bar Graph function displays in graphical form
the value of the mode (Total, Gross, Net, ROC,
Peak) selected in the bar graph setup menu.
NOTE: The bar graph mode and the display mode are totally independent. Make sure you
know what mode each are in before reading.

Load Check Step 1. Place a load (weight) on the scale or vessel.

Step 2. Check to see if the weight reading changes on the display in
the proper direction.
• e.g. if the display reads 100 pounds and a 20 pound load is
placed on the vessel or scale, the display should read 120
or some value over 100.
• If the display reads 80 pounds and a 20 pound load is
placed on the vessel or scale, the reading is going in the
wrong direction and indicates a problem. (See the Chapter
8, Troubleshooting for corrective action.)
• If the display is reading improperly or shows no change,
something is wrong either with the setup or configuration.
Step 3. If the display changes in the proper direction, remove the
weight and proceed to calibrate the controller.

Calibration Setup
Procedures

The Calibration Menu

NOTE: When calibrating the instrument for the first time, go from one sub-menu to the next in
sequence. If you want to change one of the sub-menus, continue to press the Up Arrow
button until you reach the sub-menu you want to change.

NOTE: After entering a value in each sub-menu the display will flash a GOOD if the value is
accepted. If the value is not accepted the display will flash an ERR # statement.

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 Chapter 6 - Calibration

NOTE: The example settings provided below depict a typical system and are for illustration
only, your setting requirements may vary.

Step 1. Make sure the controller is in Gross Mode.

Step 2. Press the Cal button. Security Code (SEC CD) is displayed.
Step 3. Press the Enter button. A flashing zero (0) appears.
Step 4. Enter the security code number (5321).
Step 5. Press Enter. The word UNIT appears. Note the three leds
(Zero Track, Motion, and CTR Zero) start to flash on the left
side of the status display.

Setting the Unit of Step 1. Press the Enter button. LB appears.

Measure. (UNIT) Step 2. To select pounds (LB) press the enter button.
Pounds (Lb) or
Kilograms (Gr) Step 3. To select kilograms, press either the up or down arrow button
until GR is displayed. Press the enter button.
Step 4. The unit of measure is selected and will be the basis for all set
points.
Step 5. "DECPNT" appears on the display.
NOTE: The displayed unit of measure can be changed during normal operation. However, all
internal calculations use the unit of measure selected during calibration.

Setting the Standard This parameter sets the number of decimal places to use in weight val-
Decimal Point ues (Total weight may be set to a different number of decimal places).
(DECPNT) Step 1. To determine the highest recommended decimal point, divide
the total load cell capacity by 10,000, and use the number of
decimal places in your answer as a reference. For example:
10,000 EU scale divided by 10,000 = 1, no decimal point is
recommended. 100 EU load cell capacity divided by 10,000 =
.01, requiring two decimal points or less is recommended.
Step 2. Press the Enter button. Six number eights (88888.8) are dis-
played.
Step 3. To select the decimal point location, push the left arrow ←
until the decimal point is in the correct position. The decimal
point will wrap from left to right.
NOTE: There is no right arrow (→).

Step 4. Press the Enter button to accept the decimal location.

Setting the Total This parameter sets the number of decimal places to use in total weight
Decimal Point (Option values.
-C6) (TOT DP)
NOTE: The Total Decimal Point must be less than or equal to the standard decimal point
position. For example: A Decimal Point that equals 88888.8, the Total Decimal Point
should equal 88888.8 or 88888.

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HI 2151/30WC MANUAL

Step 1. If the optional weight totalizer is installed, TOT DP appears

on the display.
Step 2. Press the Enter button. There are six number eights 888888
displayed.
Step 3. To select the decimal point location, push the left arrow ←
until the decimal point is in the correct position. The decimal
point will wrap from left to right.
Step 4. Press the Enter button to accept the decimal location, The
Motion Tolerance sub-menu MOTION appears on the display.

Setting the Motion

Tolerance Value Step 1. The base motion number can be calculated by using the fol-
(MOTION) lowing formula:
Base Motion Number = Total Load Cell Capacity/10,000 x 3
NOTE: Motion Tolerance must be greater than or equal to the Graduation Sizes. Recommen-
dation would be three graduation sizes.

Step 2. The motion tolerance is the tolerance value used to determine

if the scale is in motion.
Step 3. The controller displays the MOTION LED when a change in
the displayed (averaged) reading is outside the value entered.
Step 4. Default value is 3 units of measure.
Step 5. Press the -/Test/Clr button to clear the current value.
Step 6. Use the numeric keys to type in the new tolerance value.
Step 7. Press Enter. The Graduation Size GRAD is displayed.

Setting the The graduation size sets the minimum increment the instrument will
Graduation Size compute and display. The Base Graduation Number is calculated by
(GRAD) dividing the total load cell capacity by 10,000. For example: With two
decimal points selected, the graduation size 10 will display increments
of .10 engineering units. With two decimals points selected, the gradua-
tion size 50 will display increments of .50 engineering units.
NOTE: If you undersize your graduation setting to increase display resolution, do not use
auto zero tracking. This combination will damage the SMM due to excessive write
operations.
Step 1. Press the Enter button. The graduation size 20 appears on the
display with the zero flashing.
Step 2. There are nine graduation size selection options:
1 50
2 100
5 200
10 500
20

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 Chapter 6 - Calibration

Step 3. To select one of the sizes, use the up arrow ↑ or down arrow
↓ keys to scroll through the selections.
Step 4. The graduation size is recalculated each time the instrument is
calibrated for span.
Step 5. Press Enter to accept the selection. The Zero Tolerance
(OTOL) sub-menu appears on the display.

Setting the Zero This sets a weight limit for an operator adjusting the weight of an
Tolerance (0 TOL) empty scale using the upper left ZERO push button. This value is the
zero tracking window and reflects an amount of weight differential of
an empty scale. Normally, a Zero Tolerance amount equal to 2% of the
total load cell capacity is acceptable. The default zero tolerance is 10
units of measure (10 is displayed). The maximum Zero Tolerance num-
ber that can be entered is 32766.

NOTE The amount of weight zeroed off is cumulative. The zero command will fail if the current
gross weight plus any previously zeroed amount exceeds the zero tolerance.
Step 1. Press the Enter button. The default display will appear (10) or
the previous set value (10).
Step 2. Press the -/Test/Clr button to clear the current value
Step 3. Use the numeric keys to enter the new value.
Step 4. Press the Enter button to accept the new value. Zero Tolerance
sub-menu (O TOT) appears on the display.

Setting The Auto Zero This parameter sets a weight limit that applies when the Auto Zero
Tolerance (A0 TOT) Tracking feature (0 TRK) or a communication command adjusts an
empty scale. When 0 TRK is enabled, the display is reset to zero when
the weight is within the set limits and not in motion.When the Auto
Zero Tolerance (0 TOT) is enabled (Set Dip Switch #8, See Chapter 4),
any weight within the set zero tolerance limit will cause the display to
automatically read zero when the scale is not in motion.
Normally an acceptable Zero Tolerance amount is less than or equal to
1.5% of the total load cell capacity. The default auto zero tolerance is
10 units of measure, and the maximum number you can enter is 32766.

NOTES: Incorrect graduation size or a drifting scale with auto zero tracking enabled can damage
the SMM.
The amount of weight zeroed off is cumulative. The autozero command will fail if the
current gross weight plus any previously zeroed amount exceeds the zero tolerance.
Step 1. Press the Enter button. The default display will appear (10) or
the previous set value.
Step 2. Press the -/Test/Clr button to clear the current value
Step 3. Use the numeric keys to enter the new value.
Step 4. Press the Enter button to accept the new value.

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HI 2151/30WC MANUAL

Step 5. If the value does not exceed the maximum zero tolerance
value or is not a negative value, the screen will accept the new
value.
Step 6. If the value exceeds the maximum zero tolerance value or is a
negative number, an ERR 15 is displayed. You need to change
the value to meet the requirements in step "3". Go to step 4
and repeat steps 4, 5 & 6 to enter new values until the value
meets the requirements in Step 3.
Step 7. Press the Enter button to accept the new value. "AVRAGE"
sub-menu appears.
NOTE: Weight can accumulate up to the value entered for the Auto Zero Tolerance and the
instrument will automatically display a 0.

Setting the Number of Step 1. This setting is to aid in ignoring the effects of material impact.
Readings Averaged If material is not entering or exiting the scale evenly, neces-
(AVRAGE) sary weight fluctuations can be seen. Averages also contribute
50 ms each to the overall time to calculate the scale weight.
Applications requiring very quick weight readings should
reduce this setting to it's minimum. If the weight is unstable
due to material impacting, increase the averages. This sets the
number of weight readings that will be used to compute the
displayed weight. The average is a sliding average so that a
new average is available for display at every reading.
Step 2. This sets the number of weight readings which will be used to
compute the displayed weight.
Step 3. The average is a sliding average so that a new average is
available for display at every reading.
Step 4. The default number of readings per average is 10.
Step 5. Press the Enter button.
Step 6. Use the numeric keys to enter the new value in the range of 1
to 200. (If you enter a number greater than 200 or a negative
number, the ERR 3 statement will appear.) Press the -/Test/Clr
button. Enter a new number.
Step 7. Press the Enter button. The Scale Capacity (SC CAP) sub-
menu appears.

Setting the Scale Step 1. If this value is exceeded by 5% an HI indication appears on

Capacity (SC CAP) the front display. Communications to and from optional
devices are not effected. This value is the nominal operating
capacity of the scale. The value you set should be the small
value between the capacity of the vessel (volume in Gallons
or Liters converted to weight in Lbs or Kgs) and the combined
weight capacity of the load cells (Lbs or Kgs).
Step 2. The value you set should be the smaller value between the
capacity of the vessel (volume in gallons or Liters converted
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 Chapter 6 - Calibration

to weight in Lbs or Kgs) and the combined weight capacity of

the load cells (Lbs or Kgs).
For example: A vessel's capacity in volume is 2,000 gallons,
in this case water. (One gallon of water weighs approximately
8.54 lbs.) The weight will be 17,080 lbs. The combined live
load capacity of the load cells is 20,000 lbs. Select the lesser
of the two values which in our example is 17,080 lbs. Enter
17,080.
Step 3. Press the Enter button. The WAVERSAVER® (WVRSVR)
sub-menu appears.

WAVERSAVER® Step 1. The lower the vibration the more steps and time required to
(WVRSVR) calculate the vibration frequency. Adjust the Average and
WAVERSAVER settings to establish minimal weighing time.
Use WAVERSAVER settings 1-3 for low amplitude high fre-
quency vibrations. Use WAVERSAVER settings 3-5 for high
amplitude low frequency vibrations.
Step 2. Press the Enter button.
Step 3. A value appears. The Default setting is 4.
Step 4. There are 5 selectable levels. 1 provides the least vibration
immunity with the fastest response time, and 5 provides the
most vibration immunity with the slowest response time.
Step 5. Press the up arrow ↑ to select the setting (1-5).
Step 6. 6.Press Enter to accept the value. The Calibration (CAL) sub-
menu appears.

This ends the

Calibration Setup
Process

Calibration Procedures Step 1. Press the Enter button. The Hard Calibration HD CAL Sub-
Menu appears.
Step 2. Use the Up or Down arrows ↑↓ to select one of the Calibra-
tion procedures:

• C2™ Calibration (C2 CAL)

• Hard Calibration (HD CAL)
• Soft Calibration (S CAL)
NOTE: Select one calibration process only. C2 and Hard Calibration are used most often. C2
Calibration is only possible with Hardy Solutions Load Cells/Sensors or Points.

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HI 2151/30WC MANUAL

C2® Second Step 1. From the CAL menu, press the down arrow button. The C2
Generation CAL sub-menu appears.
Calibration Step 2. Press the Enter button. The Load Cell Count LC CNT sub-
Procedures menu appears.
Step 3. Verify that the load cells detected by C2 calibration equal the
actual number of load cells installed in the system. If the load
cells detected do not match the load cells installed in the sys-
tem do the following:
1. Press the Enter button.
2. Press the Exit button three times.
3. Press the -/Tst/Clr button. The Self Test (SLFTST)
menu appears.
4. Press the Enter button to perform the Self Test. The Self
Test will give the serial numbers of the load cells that
are found by the instrument. If one of the serial numbers
is not found it means that a load cell is not communicat-
ing with the instrument. Verify that the load cell wires
are properly connected. See the Load Cell certificates
for color code information.
NOTE: The controller can detect up to 8 C2 load point/cells on one vessel. The load points/
cells are detected during power-up.

5. Press the Enter button. The Reference Point REF PT

sub-menu appears.

Step 4. Setting the Reference Point (REF PT)

• Press the Enter button.
• Press the -/Tst/Clr button to clear the current entry.
• Use the numeric keys to enter the reference weight or use
the default reference weight "0" by pressing the Enter but-
ton. Any known weight within the scale range can be used
as the reference weight. The recommended and default
value is zero (0).
• Make sure that there is no vibration on or around the scale/
vessel or is as low as possible.
• Press the Enter button. The RETURN display appears.

Step 5. Using the Return button. (RETURN)

1. If you want to change any setting(s) in the C2 Calibration

procedures, push the up arrow which takes you back to
the load cell count LC CNT sub-menu. Press the up arrow
until the sub-menu you want to change appears then press
the Enter button. Follow the procedures above for the
menu.
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 Chapter 6 - Calibration

2. If you want to accept the C2 Calibration parameters press

the Enter button. The End Calibration END CAL message
is displayed.
3. Press the Enter button again. This seals all calibration set-
tings and exits the C2 Calibration Menu.
4. The instrument returns to the normal weight display.

NOTE: If the Enter button is not pushed after End Cal appears, three leds will flash indicat-
ing that the settings are not sealed in memory.

End of C2 Calibration
NOTE: To correct mistakes during calibration, or to return to a previous calibration parame-
ter, press the down arrow to bypass parameters, press the up arrow↑.

Hard Calibration
Procedures (HDCAL)
NOTE: Hard Calibration is the traditional method of calibration that uses test weights. We
recommend that the test weights total 80 to 100% of the scale weight.

NOTE: Hard Calibration must be performed with the instrument in GROSS MODE.

Selecting the Hard Step 1. Make sure that the instrument is in Gross Mode.
Calibration Sub-Menu Step 2. From the Weight Display, Press the 8/Cal button. The Secu-
rity Code (SEC CD) displays.
Step 3. Press the Enter Button. A flashing zero (0) appears.
Step 4. Enter the security code number (5321), then press the Enter
button. The Unit of Measure UNIT Sub-menu appears.
Step 5. Press the down arrow ↓ until the CALSub-Menu appears.
Step 6. Press the Enter button. The Hard Calibration HD CAL Sub-
Menu appears.
Step 7. Hard Calibration requires a zero point and the physical place-
ment of test weights on the scale.
Step 8. Press the Enter button. The ZERO sub-menu appears.

Setting the Zero Step 1. Remove all weight "live load" from the scale.
Calibration Value Step 2. Press the Enter button. A dash "--" appears.
Step 3. Press the -/Test/Clr button. A "0" appears.
Step 4. Wait 12 seconds.
Step 5. Press the Enter button.
Step 6. Either a GOOD or ERR# appears.
Step 7. If an ERR number appears go to Chapter 8, Troubleshooting
for more information.

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HI 2151/30WC MANUAL

Step 8. If a GOOD appears the Span (SPAN) display appears.

NOTE: The resistance baseline for non C2 load cells, is also set when the Zero Calibration
Value is entered. (See Section 5 for more information)

Setting the Span Step 1. Place a certified test weight on the scale.
Calibration Value Step 2. Press the Enter button. A dash "--" appears.
Step 3. Press the -/Test/Clr button. The previous span value appears.
Step 4. Press the -/Test/Clr button. A "0" appears.
Step 5. Use the numeric keys to enter the value of the test weight. (If
a 50 lb weight is used, enter 50).
NOTE: Ideally the test weight used for the dead load should be the typical weight that will be
measured in the application.

Step 6. Wait 12 seconds.

Step 7. Press the Enter button to set the span. The Linear Correction
(LINCOR) Sub-Menu appears. Press the -/Test/Clr button two
times. The Return (RETURN) Sub-Menu appears.

The Return The RETURN Display allows the user to change any setting(s) entered
(RETURN) Display in the Hard Calibration Sub-Menu.

Step 1. Push the up arrow ↑ which takes you back to the Zero Sub-
Menu.
Step 2. Press the up ↑ arrow until you reach the sub-menu you want
to change and press enter.
Step 3. Follow the procedures for each Sub-Menu you want to
change.
Step 4. If you want to accept the Hard Calibration parameters
entered, press the Enter button. The End Calibration END
CAL message is displayed.
Step 5. Press the Enter button. This seals all calibration settings and
exits the Hard Calibration Menu.

Checking for Step 1. Place a test weight on the scale.

Mechanical Problems Step 2. Check the displayed weight value.
Step 3. Remove the test weight from the scale. If the displayed value
is zero the hard calibration is complete. If some value other
than zero is displayed, check for mechanical problems, most
likely binding in the system. (See Chapter 8, Flow Chart H for
details) Correct the problems and perform the Hard Calibra-
tion Process again.
NOTE: To correct mistakes during calibration, or to return to a previous calibration parame-
ter, press the down arrow ↓ to bypass parameters, press the up arrow ↑ .

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 Chapter 6 - Calibration

Hard Calibration Self

Test Procedures
(Traditional Method
Using Test Weights)

Perform the Hard Step 1. Press the -/Test/Clr button. The Self Test SLFTST Sub-Menu
Calibration Self Test appears.
Step 2. Write down all the Hard Calibration self test parameters on
the Self-Test, Calibration Results form. (See Appendix C, HI
Document # 0570-0016-01 for single controllers or 0575-
0016-02 for multiple controllers) Please photocopy as many
copies of the form(s) as you need.
Step 3. Press the down arrow ↓ button to pause the test.
Step 4. To review the test results, Slot 1 for example. Press the down
arrow to pause the Self Test. Press the up arrow one time
and the value for Slot 1 appears for example "none". Write
"none" down in the results column for Slot 1 on the Self Test -
Calibration form. The user can continue to push the up arrow
to review more results, or let the controller resume the self
test until the tests are completed.
Step 5. There are two tests which are Pass/Fail. The Check Sum and
the RAM test. If the controller fails either one of these tests,
contact your local representative or Hardy Solutions, Cus-
tomer Support Department.

Soft Calibration
Procedures for Single
Load Cell/Point
Systems
NOTE: Soft Calibration for systems with more than one load cell/point contact: Hardy Process
Solutions Customer Support Department.

About Soft • Soft-Cal is a procedure that quickly calibrates a scale system, on-
Calibration site, without test weights, material substitution or forced calibra-
tion.
• The process uses the certified, full scale mV/V output (sensitivity
and range) of each load cell.
• The full scale mV/V output of each load cell is mathematically
combined with a measured reference point, usually but not always
zero, to calibrate the scale.
• The full scale mV/V data is on the calibration certificate which is
shipped with every Hardy load cell.
• The process assumes a consistent center of gravity on the scale with
even distribution.

6-15
HI 2151/30WC MANUAL

• All load cells must be correctly installed with no binding of any

kind on the scale.
• You must use the same length cable as supplied with the load cell.
DO NOT CUT THE CABLE!!!
• A multiple load cell system, using a junction box, all balance poten-
tiometer and resistors must be zero.
NOTE: For multiple load cell systems contact your local dealer or Hardy Instruments, Cus-
tomer Support Department.

• The Soft-Cal menu cannot be entered while in the National Bureau

of Standards (NBS) mode.

Selecting the Soft Step 1. From the Weight Display, Press the 8/Cal button. The Unit of
Calibration Sub-Menu Measure UNIT Sub-menu appears.
Step 2. Press the down arrow ↓ until the CAL Sub-Menu appears.
Step 3. Press the Enter button. The Hard Calibration HD CAL Sub-
Menu appears.
Step 4. Press the down arrow ↓ until the Soft Calibration S CAL Sub-
Menu displays.
Step 5. Press Enter. The Sensitivity Sub-Menu SNSTVY appears.

Setting Sensitivity Step 1. Use the numeric keys and enter the load cell full scale output
Values in mV/V found on the load cell calibration certificate.
Step 2. You must enter five digits. If a load cell is listed at less than
five digits, add 0's to make up the five digit number. For
example: When the full scale output in mV/V is "2.99". You
need to enter the number as "29900". The least significant
numbers are on the right when looking at the display.
Step 3. When multiple load cells are used, contact Hardy Instruments
Customer Service Department to compute the system total
full scale output sensitivity.
Step 4. Press Enter. The Scale Range sub-menu RANGE appears.

Setting the Scale Step 1. Press the Enter button.

Range (RANGE) Step 2. Use the numeric keys and enter the sum of the rated capacities
of all load cells being used. An example: There are 3 load
cells rated at 1,000 lbs capacity each. The value to enter is
3000.
Step 3. Press the Enter button. The Reference Point Sub-Menu REF
PT appears.
NOTE: For HI 2151/20WC users the next setting would normally be the sticker value. The
sticker value for the HI 2151/30WC is entered at the factory and cannot be changed.
Therefore it is not necessary to set the sticker value in Soft Cal.

6-16
 Chapter 6 - Calibration

Setting the Reference • The reference point = the current live load on the scale platform.
Point • Any known weight within the scale range can be used as the refer-
ence point. The zero point (no material load) is recommended.

Step 1. Press the Enter button. A dash "--" appears.

Step 2. Press the -/Test/Clr button to clear the entry and enter a value.
Step 3. Use the numeric keys and enter the reference point. For exam-
ple: 0.00
Step 4. Wait 12 seconds.
Step 5. Press the Enter button. A WAIT prompt appears, then either a
GOOD or an ERR 4 or ERR 18 appear.
Step 6. If the GOOD appears. Press the Enter button. The RETURN
Sub-Menu appears.
Step 7. If either of the two ERR statements occur, go to Chapter 8,
Troubleshooting for more details.

Using the Return Step 1. If you want to accept the Soft Calibration parameters press the
(RETURN) Function Enter button. The End Calibration ENDCAL message is dis-
played.
Step 2. Press the Enter button. (DO NOT PRESS THE EXIT BUT-
TON) This updates all the calibration parameters in the Cali-
bration Menu and saves the parameters to the Secure Memory
Module. The Weight Display appears.

End of the Soft

Calibration Process

Soft Calibration Self

Test Process

Performing the Self Step 1. Press the -/Test/Clr button. The Self Test SLFTST Sub-Menu
Test appears.
Step 2. Write down all the Soft Calibration Self Test parameters on
the Self-Test, Calibration Results form. (See Appendix A, HI
Document # 0570-0016-01 for single controllers or 0575-
0016-02 for multiple controllers) Please photocopy as many
copies of the form(s) as you need.
Step 3. The down arrow pauses the test and the up arrow scrolls
through the tests one at a time.
Step 4. To review the test results, Slot 1 for example. Press the down
arrow to pause the Self Test. Press the up arrow one time
and the value for Slot 1 appears for example "none". Write
"none" down in the results column for Slot 1 on the Self Test -
Calibration form. The user can continue to push the up arrow

6-17
HI 2151/30WC MANUAL

to review more results, or let the controller resume the self

test until the tests are completed.
Step 5. There are two tests which are Pass/Fail. The Check Sum and
the RAM test. If the controller fails either one of these tests,
contact your local representative or Hardy Instruments, Cus-
tomer Support Department.
NOTE: To correct mistakes during calibration, or to return to a previous calibration parame-
ter, press the down arrow to bypass parameters, press the up arrow ↑.

INTEGRATED
TECHNICIAN (IT®)

Setting Resistance 1. C2 Load Cells

Baseline for Excitation
Monitor If C2 load cells are used in the weight control system, the controller
calculates the resistance value during power up and turns on the excita-
tion monitor.

2. Non C2 Load Cells

If Non C2 Load Cells are used in the weight control system, the con-
troller will capture the resistance value when performing the Hard Cal-
ibration when setting the Zero Calibration Value.

Quick C2® Calibration

Procedures

About Quick C2 The quick C2 calibration should be used when the controller has
Calibration already been properly calibrated and when the system is determined to
be slightly out of specification, for a scheduled periodic calibration.

• The Quick C2 calibration procedures do not replace the regular C2

calibration procedures.

Step 1. From the CAL menu press the Enter button. The HD CAL
menu appears.
Step 2. Press the down arrow. The C2 Calibration sub- menu C2
CAL appears.
Step 3. Press the Enter button. The Load Cell Count LC CNT
appears.
Step 4. Press the up arrow. The Reference Point sub-menu appears.
Step 5. Press the Enter button.
Step 6. Enter the weight of the current "live load" that is on the scale.
Step 7. Press the Enter button. The RETURN display appears.
Step 8. Press the Enter button. The END CAL display appears

6-18
 Chapter 6 - Calibration

Step 9. Press the Enter button to set the changes.

Procedures to Restore
Calibration Parameters

Before Clearing • If the parameters for the controller are on the Self Test - Calibration
Memory Form (Prt. # 0575-0016) enter the values from the form.
• If the user does not have the parameters from Self Test - Calibration
Form handy, go through the Self Test again and write them the
parameters.
CAUTION IF CONTROLLER MEMORY IS CLEARED, ALL OPERATING SETTINGS
ARE RETURNED TO THE ORIGINAL FACTORY DEFAULT PARAMETERS.
ALL CALIBRATION, OPTION AND SET POINT VALUES SHOULD BE
RECORDED BEFORE CLEARING MEMORY OR THE CONTROLLER WILL
HAVE TO BE RE-CALIBRATED.

Clear Controller Step 1. Contact Hardy Instruments, Customer Support Department

Memory for instructions to clear controller memory.
Step 2. Re-enter the original Set point and Option parameters on the
Self Test - Calibration form.
Step 3. Re-enter the Calibration parameters.
Step 4. From the CAL menu press the Enter button. The Hard Cali-
bration Sub-Menu HD CAL appears.
Step 5. Press the Mode button. The Zero Count sub-menu ZR CNT
appears.
Step 6. Press the Enter button.
Step 7. Enter the ZR CNT self test parameter from the Self Test - Cal-
ibration form.
Step 8. Press the Enter button. The Span Sub-Menu SPAN appears.
Step 9. Press the Enter button.
Step 10. Enter the SPAN self test parameter from the Self Test - Cali-
bration form.
Step 11. Press the Enter button. The Full Scale Count FS CNT Sub-
Menu appears.
Step 12. Press the Enter button.
Step 13. Enter the FS CNT self test parameter from the Self Test - Cal-
ibration form.
Step 14. Press the Enter button. The RETURN display appears.
Step 15. Press the Enter button to set the parameters, the END CAL
display appears.
Step 16. Press the Enter button to save the updated parameters to the
SMM and return to the weight display.

6-19
HI 2151/30WC MANUAL

Restoring Calibration
When Changing
Decimal Points

Restoring Decimal Step 1. If you wrote down the parameters for this controller on the
Points Self Test - Calibration Form (Prt. # 0575-0016) enter the val-
ues from the form.
Step 2. If you didn't write down the parameters on the Self Test - Cal-
ibration Form, get the form and write them down.
Step 3. Check all Set point, Option and Calibration entries for the
correct decimal position.
NOTE: You must complete procedures "c" before moving to procedure "d" to be sure that the
decimal points in the correct position. If you don't check the decimal positions the cal-
ibration will be incorrect.

Step 4. From the CAL menu press the Enter button. The Hard Cali-
bration Sub-Menu HD CAL appears.
Step 5. Press the Mode button. The Zero Count Sub-Menu ZR CNT
appears.
Step 6. Press the Enter button. The current value is displayed.
Step 7. Press -/Test/Clr button and enter the correct ZRCNT or Press
the Enter button to accept the current value. The Span Sub-
Menu SPAN Sub-Menu appears.
Step 8. Press the Enter button. The current value is displayed.
Step 9. The new decimal point will be displayed in the SPAN Sub-
Menu but it might be in the wrong place and displaying the
wrong span value.
Step 10. If the Span Value should be 2000.00 and the current display
shows 200.00, add a zero (0) by pressing the 0 button. Now
the value is correct.
Step 11. If the Span Value should be 200.00 and the current display
shows 2000.00, press -/Test/Clr button and enter 200.00.
Step 12. Press the Enter button twice. First the Full Scale Count Sub-
Menu FS CNT appears, then the current value is displayed.
Step 13. Press the -/Test/Clr button, enter the correct FSCNT then
press the Enter button or press the Enter button to accept the
current value.
Step 14. The RETURN display appears.
Step 15. Press the Enter button twice. First the END CAL display
appears, then the Secured Memory Module is updated and the
system returns to the weight display.

6-20
 Chapter 7 - Operation

CHAPTER 7 - OPERATION
Chapter 7 covers operation of the HI 2151/30WC weight controller.
Follow the procedures in this chapter to ensure maximum quality per-
formance.

Description of Front
Panel (See Fig. 7-1) Zero Mode
Tare

Print

8.8.8.8.8.8

FIG. 7-1 FRONT PANEL, PROCESS WEIGHING FUNCTION BUTTONS

Process Weighing ITEM LABEL BRIEF DESCRIPTION

Function Buttons
ZERO ZERO Sets current count as new gross zero reference
point. The ZERO button will only zero up to the
zero tolerance value entered in the calibration
menu. (See Chapter 6)
The user can zero the instrument as many times
as desired as long as the total does not exceed
the value entered as the zero tolerance.
Exits a numeric entry in a menu without chang-
ing the original value.

MODE MODE Standard mode

Selects Standard Net, Gross modes and any
installed optional modes.
Optional Modes
Peak Hold Mode (-C1) - The PEAK mode dis-
plays the highest measured average gross
weight. The peak value is continuously moni-
tored and stored in any mode of operation. The
user can reset the peak hold mode by pressing
the clear button while the Peak Value is dis-
played. The peak value is stored in memory but
will not be retained in the event of a power fail-
ure.

7-1
HI 2151/30WC MANUAL

ITEM LABEL BRIEF DESCRIPTION

Rate-Of-Change Mode
(-C2) - The ROC mode displays the rate-of-
change of the input with respect to a pre-selected
time base.
Total (-C6) - The TOTAL mode displays the
accumulated total weight. The instrument adds
the current net weight to the total net weight
when a remote function is entered. The value is
available for displaying, clearing or printing.
TARE TARE Captures current displayed gross weight and
places value in the tare register.

Sets display to zero in net mode.

PRINT PRINT Outputs to RS232C serial port (NOT used with
multidrop).

Operator Displays ITEM LABEL BRIEF DESCRIPTION

LEDs 30 discrete LEDs that displays either weight

controller status or a bar-graph representation of
the selected weight display mode.
Display Fourteen-segment LED display for displaying
menus, operator inputs and selected weight
displays.

Instrument Operation There are two main operating menus - Set Point and Option. To enter
Overview these menus, press the proper button. Once in a particular menu, use the
up and down arrow buttons to scroll through the choices of that menu.
Some of the menus have sub-menus. To select an item for viewing and/
or changing, press the Enter button when the menu item displays; the
current value or status of the menu item is displayed.
To change values, use the numeric keypad, or press the Exit button if
no changes are made. Use the -/Test/Clr button when a value is shown
on the display to clear the display to all zeros. When clearing the dis-
play, the unit will always keep the decimal location intact by putting
zeros to the right and one zero to the left of the decimal point.
Some menu selections can be toggled using the ← and → buttons.
Pressing the arrow buttons will display all available selections for the
menu item. Whether altering a value or not, when you are ready to stop
viewing this parameter and go on to the next, press the Enter button to
accept the value or press the exit button to keep the original value. This
will save the parameter as shown on the display.
The instrument will also verify that the value entered is a logical
choice. If a parameter has been entered correctly, a GOOD will briefly
appear and the display advances to the next item in the menu. If a
parameter has been entered incorrectly, an error ERR statement

7-2
 Chapter 7 - Operation

appears. A list of error statements are provided in Chapter 7 - Trouble-

shooting. After checking the error statement, correct the error.
To simply view a parameter value without changing the value, push the
Enter button. If when changing a value you decide to retain the original
value, press the ZERO button instead of the Enter button. This will
save the original value and advance to the next parameter.

Option Menus and Option menus are used to set parameters for the various option boards.
Option Parameters All option parameters except for Peak Hold are automatically saved
and updated in the Secure Memory Module. The following sections
describe menu operation.
NOTE: Do not modify ANY Sub menus, while the serial interface or A-B RIO are attempting
to modify information.

OPTION MENU TREE

Rate of Change Analog Ouput Analog Ouput BCD Port Bar Profibus Allen
Port 1 Port 2 Graph Bradley
RIO

Units T-Base
Node Rate
Address
Analog Analog Analog Analog Bar Hi Bar Lo
LO HI LO HI
Rack Number
Format

Quar ter
Number
Gross Net Tare Display Print

Last
Quar ter

Sercon Ser Type Baud Frame Format Control Echo Address

Bi-Dir RS-422 19200 8-N-1 G HARDRE ON
Print RS-485 9600 7-0-1 N SOFTRE OFF
4800 7-E-1 T 1-99
2400 8-N-2 R
1200 8-0-1 S
600 8-E-1 P

FIG. 7-2 OPTION MENU TREE

Option Boards The Hardy Instrument option boards provide added capabilities. They
are easily installed into the option board slots, labeled Option 1 and
Option 2 on the rear panel of the instrument.

General Information
NOTE: If your options have already been installed at the factory, move on to Set points.

The options are implemented by installing the appropriate optional cir-

cuit board onto the main analog/digital board in the instrument. (See
Chapter 3 for installation instructions)

The following option boards are available for the HI 2151/30WC:

• Analog Output board (voltage and current outputs: Net,
Gross, Total*, ROC*, or Peak Hold*). Prt. # 0551-0326,
model HI2151/30X-B1.
7-3
HI 2151/30WC MANUAL

(* if ordered)
• Parallel BCD board, tri-stated. With 6" cable P/N 0551-
0327, model HI2151/20XX-B2. With 24" cable Prt. # 0509-
0389-02, model HI 2151/30XX-B9. With 60" cable Prt. #
0551-0330, model HI2151/30XX-B5.
• Allen-Bradley RIO. Prt. # 0551-0351, model HI2151/
30XX-B8.
• PROFIBUS Field Bus Interface. Prt. # 0535-0439, model
HI2151/30XX-B12.
• DDE I/O Server, Prt. 0551-0419-01, HI2151/30XX-B14
• Setpoint Option Card Prt. # 0551-0288, model HI2151/
30XX-D2
Option slots are labeled on the top circuit board as follows:

READ PANEL LABEL 26 PIN CONN NUMBER

Option 1 J5
Option 2 J4
Output Option Boards may be ordered and installed into these slots as
follows:

BOARD QUANTITY OPTION SLOT

Analog 2 1 and/or 2 (When using only 1 board,

position 1 is preferred due to option
cover compatibility)
BCD 1 only 1
A-B RIO 1 only 1 or 2
PROFIBUS 1 only 1 or 2
NOTE: You can install either the A_B RIO or the Profibus option but you cannot install both
at the same time.

Set Points

About Set Points The set point value is the target weight or level. It may be set in either
net, gross, ROC*, Total*, or Peak* hold weight units. When entering
this value, the corresponding LED flag will appear on the display. The
operator may toggle this flag to the desired mode by pressing the
MODE button. Refer to the Set point Limits section following installa-
tion for a description of set point limits.
NOTE: Only works when the ROC, Total, or Peak options are installed in the controller.

Set Point Limits

Dead Band Limits The dead band value can be set as a positive or negative value. It is
used to prevent relay chatter once the set point is reached.

7-4
 Chapter 7 - Operation

For example: if a set point value was 1000 pounds and the dead band
was set to -5 pounds, the relay would close at a 1000 pounds but not
open until the weight dropped to 995 pounds. This would be used if a
set point is a high trip limit. A positive dead band would be used for a
low trip limit. Examples are shown for Low and High Trip Limits.
(See Fig. 7-3) Using a set point of 1,000 pounds and a dead band of -
800 pounds will cause the level to remain between 200 and 1,000
pounds.

Three General Rules 1. Set points activate at the set point plus the preact.
for Setpoints 2. Set points deactivate at the set point plus the deadband.
3. The deadband should be numerically larger than the preact to pre-
vent relay chatter.

RELAY TRIPS

SET POINT
WEIGHT

(-) PREACT NEGATIVE

DEADBAND
SETPOINT
AFTER TRIP
PROCESS

RELAY RESETS

TIME

HIGH TRIP LIMIT

RELAY RESETS

SETPOINT
AFTER TRIP
WEIGHT

POSITIVE
(-) PREACT
DEADBAND

SET POINT

RELAY TRIPS

TIME

LOW TRIP LIMIT

FIG. 7-3 LOW AND HIGH PREACT TRIP LIMITS

Preact Limits (See • The preact value is the number of units below (negative value) or
Fig. 7-3) above (positive value) the set point value at which the relay will
trip.
• It is used as an "in-flight" compensation value when filling a vessel.
If set to zero, there will be no compensation.

Entering Set Points

About the Set Point • Used to enter the set point, dead band, and preact values for the two
Menu standard internal relays.
• Used to enter the associated values for the six optional, external
relays when installed.
NOTE: To scroll forward or backward through the Set Point Menus, press the Up or Down
arrow ↑↓ buttons.
7-5
HI 2151/30WC MANUAL

Entering Set Point

Procedures
NOTE: A previously assigned set point value will be displayed. For this example, the set point
value will be set to 500.

Step 1. Press the 6/SetPt button to select set point menu, RLY -- 1
appears with the 1 flashing.
Step 2. Press the Enter button. Set Point #1 appears SPNT - 1.
NOTE: The mode status display indicator flashes on the present set point mode. To change
modes, press the round mode button until the desired mode display flashes.

Step 3. To enter a new set point value, press the -/Test/Clr button.
Step 4. Use the numeric buttons to enter a desired set point value; in
our example 500.00.
Step 5. Press the Enter button. The controller indicates that the value
was valid by briefly displaying GOOD. The Dead Band Sub-
Menu DBND-1 appears.

Entering Dead Band Step 1. Press the Enter button. The Dead Band Sub-Menu DBND-1
Tolerance appears.
Procedures Step 2. Press the -/Test/Clr button to clear the existing value.
Step 3. Press the -/Test/Clr button again to enter a negative value if
desired.
Step 4. Use the numeric buttons to enter dead band value (e.g. -
125.00 value).
Step 5. Press the Enter button. The controller indicates that the value
was valid by briefly displaying GOOD. The Preact Sub-Menu
PRE - 1 appears.

Entering Preact Step 1. Press the Enter button.

Values Procedures
NOTE: Previously set preact value will be displayed. For this example, the preact value will
be set to 20.

Step 2. To enter a new value, press -/Test/Clr button.

Step 3. Press the -/Test/Clr button for a negative value if desired.
Step 4. Use the numeric buttons to enter a new preact value.
Step 5. Press the Enter button. The controller indicates that the value
was valid by briefly displaying GOOD. Set Point 1 Sub-Menu
SPNT - 1 appears.
Step 6. Press 0/Exit button to advance to Relay 2 RLY-2
Step 7. Repeat above procedure to enter set point parameters for relay
2
7-6
 Chapter 7 - Operation

Step 8. If the option for 8 relays is active, enter set point parameters
for relay 3-8 at this time.
Step 9. When the last set point parameter is entered, press Exit button
to return to the weight display and resume normal operations.

Serial Communications The standard serial ports are user selectable RS-232C, and RS-422/485
which may be configured as a printer output port or as a bi-directional
communication port. Transmission speed is selectable from 600 to
19.2K baud and may be configured for a continuous data output mode.
The port allows host computer control using ASCII character com-
mands and RS 422/485 ports support multiple weight controllers via a
multidrop configuration.

Bi-directional
Communications

RS-232C One RS-232C allows serial communication from one weight controller
to one peripheral device. The RS-232C is user-selectable as a print-out-
put only port or as a bi-directional control port through the Menu and
jumper settings on the main board. (See Chapter 4 for configuration
information)

Operation The operation consists of properly executing commands over the serial
port.

RS-422/485 The RS-422/485 meet RS-422 or RS-485 requirements providing drive

over long distances. With the Hardy Link two way multidrop, commu-
nication can take place between any of the Hardy Instruments series
2100 controllers and a host computer.

Operation Operation of the RS-422/485 consist of properly configuring the board

(See Chapter 4, Section 4.1 for configuration information) and execut-
ing commands over the port. Commands available and their actions are
identical to the commands for the RS-232C.

Description of 422/ Many devices available today are called RS-422/485 because their
485 Transmission electrical signals meet or exceed both specifications. This does not nec-
Modes Available essarily mean they both meet the strict intent of RS-485 to provide for
two wire multidrop networks. They are instead multidrop RS-422 or
four wire RS-485 networks.

RS-485 The RS-485 mode when configured as two wire (2 wire jumper) with
the transmitter enabled.

RS-422 If the unit is in the four wire (4 wire jumper) mode with the transmitter
always enabled, then the board operates in a true RS-422 mode. This
flexibility allows compatibility between the host computer and the HI
2151/30WC.

7-7
HI 2151/30WC MANUAL

Additional Non- • Used most frequently. Only one "host" permitted.

standard • Four wire RS-485 or multidrop RS-422 mode
Transmission • When configured in four wire mode with the transmitter selectively
Mode tri-stated, the board is operating in a four wire RS-485 or multidrop
RS-422 mode. This configuration doesn't meet either specification
but can be easier to program than either true specification.

RS-422/485 Serial communication signal configuration and wiring is dependent on

Wiring and how the board is configured. The following notes are typical methods
Electrical of connection. It should be realized that these methods vary and are
Specifications only furnished to offer a starting point for configuration:
• Signal Grounds
A direct connection between signal grounds of the different
devices is not desirable, rather a connection with approxi-
mately 100 ohms of resistance is recommended. Signal
ground should NOT be used as a shield.
• Earth Ground Cable Shield
Typically, cable shields are tied to the ("frame") ground at
the end that is the best earth ground.
Pick up frame ground on the HI 2151/30WC with the phil-
lips head screw on the rear of the instrument labeled Shield.
• Cable Type
The Tx+/Tx- and Rx+/Rx- wires are twisted pair (with outer
shield).
• Serial Connector
Each function is wired to two pins to allow only one wire to
be put in each terminal position. (The same electrical signal
is routed to pins one and two on the board.)

+TXD
HOST -TXD
+RXD
DEVICE -RXD
-RXD
+RXD

-TXD

-RXD

+RXD

-TXD

-RXD
+RXD

-TXD
+TXD

+TXD

+TXD
GND

HI 2151 HI 2151 HI 2151

SIG

GND

GND

GND
SIG

SIG

SIG

RS-422/485 FIG. 7-4 WIRING DIAGRAM SERIAL COMMUNICATIONS

Configuration
Wiring
7-8
 Chapter 7 - Operation

RS-422/485 Description Specification

Electrical Receiver Impedance 12 k ohm
Specifications
Description Specification
Receiver Common Mode Range +12 to -7 V
Maximum Input Threshold +200 mv
Minimum Input Hysteresis 50 mv
Driver Output Capability +60 ma at 2 V differential
Driver Short Circuit Limit 250 ma to +12 or -7 V
Bus Loading By Unpowered Board One Receiver Load

Instrument Serial
Communications

About Instrument The HI 2151/30WC's serial options provide the user with a full comple-
Serial ment of RS-232C, RS-422, and RS-485 communications. There is a
Communications standard RS-232C/422/485 serial port on the main board. Each port can
be an output only port to drive a printer or similar device, or as a bi-
directional port for both status and control.

Printer Output Below is an example of the printout with the weight controller format-
ted for Gross, Net and Tare.
>
GROSS 1.430 LB
NET 0.430 LB
TARE 1.000 LB

Serial Protocol -
Multidrop Mode

About Serial Hardy Instruments HI 2151/30 WC weight controller employs an

Protocol Multidrop ASCII command protocol and accompanying command set, described
Mode in the following paragraphs. The protocol is via RS-232 or RS-422 with
the network being called Hardy Link. Hardy Link supports a multidrop
configuration.

• Serial Protocol - Multidrop Mode

Multidrop is a configuration denoting that there are multiple

HI 2151/30WC units connected to a host computer whereby
each HI 2151/30WC receives and sends data through a
unique address. The fastest possible instrument response
will be from the multidrop configuration. The multidrop
configuration also lends itself well to host computer control
of multiple weight controllers. RS-422/485 is utilized and
provides excellent noise immunity and drive capability sup-
porting long cable runs.

7-9
HI 2151/30WC MANUAL

NOTE: The 2151/30WC weight controller contain intelligent front ends to a distributed sys-
tem, therefore network speed is not usually critical.

Data Formats Relays, dip switches and LED data along with weight data have their
own special format for transmission. These formats are described in the
following two sections.

Data Formats - 1. Relay, dipswitch and LED numbers are represented by the binary
Binary bit position. In the case of a relay, 0 disables the relay and a 1
Representation enables the relay.

2. Binary bit position:

7 6 5 4 3 2 1 0

3. Relay(binary bit position +1):

7 6 8 2 1 3 4 5

4. Example:

To enable relays 4 and 8, the following would be the binary repre-

sentation:

0 0 1 0 0 0 1 0

This would be 22 hex, hence the command to enable relays 4 and 8

would be E 22.

Data Formats - 1. Weights are transmitted according to the following rules:

Weight Data Format
• Positive numbers:
Maximum of 6 numeric + decimal point.

• Negative numbers:
Maximum of 5 numeric + minus sign + decimal point.

• Examples:

Transmitted Correct? Received Reason

-123.45 Y -123.45 5 numerics +
minus sign + decimal
point (B above).

1234.56 Y 1234.56 6 numerics + decimal

point (A above).

7-10
 Chapter 7 - Operation

Transmitted Correct? Received Reason

-12345 Y -12345 5 numerics + minus

sign (B above)

-123456 N -12345 The "6" would be

truncated since only 5
numerics + the minus sign
is legal (B above).

12345.67 N 12345.6 The "7" would be

truncated since only a
maximum of 6 numerics +
decimal points is legal (A
above).

Serial Commands Serial commands are transmitted to the instrument in ASCII format.
Each command has a single letter corresponding to the command. The
instrument will accept command strings up to 40 characters (the 40th
will internally default to a carriage return).The front panel serial port
menu allows setup of serial communication parameters, i.e. BAUD,
parity, etc.

Serial Commands - The following table uses the mnemonics corresponding to the outgoing
Data Transmission command format (some of which are optional):
Format
Mnemonic Meaning Number of ASCII Bytes

CMD Command 1
SUB-CMD Subcommand 1 to 3
DATA-n Data byte n 1 to 7
MODE Mode 1
CR Carriage return 1

1. Serial commands are transmitted from the host to the instrument (in
ASCII bytes) in the format:
2. Control characters are transmitted in HEX. (See the ASCII to HEX
table in Appendix A)
3. An example using the "x" transmit command with Hardy Link and
an address of 10 is:

2 BYTE CHECKSUM
START INSTRUMENT
CMD SUB-CMD CR EOT
CHAR ADDRESS
CHK-1 CHK-2

> 10 X G CR CHK-1 CHK-2 EOT

7-11
HI 2151/30WC MANUAL

NOTE: The example uses decimal and mnemonic abbreviation format for clarity, however,
the actual data would be in ASCII format. A leading zero (i.e. 01) is required for sin-
gle digit addresses for serial port #2.

4. There is one space (20 hex) required between each type of data fol-
lowing the INSTRUMENT ADDRESS, hence, the outgoing com-
mand represented in hex format would be:

3E 31 30 20 58 20 47 0D 34 44 04

> 1 0 X G CR 4 D EOT
An example using the "x" transmit command without Hardy Link
is:

2 BYTE CHECKSUM
START
CMD SUB-CMD CR EOT
CHAR
CHK-1 CHK-2

> X G CR CHK-1 CHK-2 EOT

Serial Commands, The checksum is computed by totaling the bytes in the command
Command Set stream starting with the INSTRUMENT ADDRESS through (and
including) the CR and then subtract 256 from the total until the remain-
der is less than 256 (to achieve a one byte maximum). The result is then
represented as two ASCII bytes and appended to the command, fol-
lowed by an EOT (04).

Value Description

31 address - instrument number 10 - ASCII "1"

30 address - instrument number 10 - ASCII "0"
20 space
58 X
20 space
47 G
0D CR
---------------
= 14d

Value Description
- 100
---------------
= 4d
Serial commands are transmitted from the instrument back to the host
in the format they were received from the host with the return data (and
units) added to the message and an LF added to the CR.
Using the above example, the return data would be:

7-12
 Chapter 7 - Operation

7 BYTE 2 BYTE CHECKSUM

START INSTRUMENT SUB
CMD DATA MODE CR EOT
CHAR ADDRESS CMD
D-7 . . . D-1 CHK-1 CHK-2

> 10 X G D-7 . . . D-1 Lb or Kg CRLF CHK-1 CHK-2 EOT

* Lb or Kg follow data.

In the case where return data is appropriate for the command, an A is

returned by the instrument in the form of:

2 BYTE CHECKSUM
START INSTRUMENT
CMD SUB-CMD CR EOT
CHAR ADDRESS
CHK-1 CHK-2

> 10 A CRLF CHK-1 CHK-2 EOT

In the case of an error, the message returned would be:

2 BYTE CHECKSUM
START INSTR.
CMD CMD SUB CR EOT
CHAR ADDRESS
CHK-1 CHK-2

> 10 N 9 9 CRLF CHK-1 CHK-2 EOT

where 99 is the error number (See Chapter 8,

Troubleshooting, Error Codes and Definitions for a
breakdown of error codes)
NOTE: The example uses decimal and mnemonic abbreviation format for clarity, however,
the actual data would be in ASCII format.

Command Meaning 1. X Xmit. When this command is issued without a sub

command, the type of data specified in the format command
will be transmitted to the port issuing the request. When
this command is issued with a subcommand only, the
subcommand data will be transmitted. Only one
subcommand per command is allowed.

2. Transmit data specified in SUB-CMD as follows:

SUB-CMD Meaning

none Default to data setup by the format command

A Accumulated total
G Gross
N Net
T Tare
DE Deadband
P Preact

7-13
HI 2151/30WC MANUAL

S Set point
DI Dipswitch
L LED Status
REL Relay
REM Remote
C ROC
E Excitation Monitor

SUB-CMD Meaning

REL Relay

Bit RELAY
01 5
02 4
04 3
08 1
10 2
20 8
40 7
80 6

SUB-CMD Meaning

The L command returns a two-byte status, each bit describing the LED
status.
The values returned are the hex values of the two bytes.

Byte 1: LED STATUS, BYTE 1 Byte 2: LED STATUS, BYTE 2

Bit 0 - Pounds led Bit 0 - Rate of change led.

Bit 1 - Zero track led Bit 1 - Alarm #2 led.
Bit 2 - Not used Bit 2 - Alarm #1 led.
Bit 3 - Center zero led Bit 3 - Peak led.
Bit 4 - Motion led Bit 4 - Total led.

Byte 1: LED STATUS, BYTE 1 Byte 2: LED STATUS, BYTE 2

Bit 5 - Gross led Bit 5 - Not used

Bit 6 - Net led Bit 6 - Not used
Bit 7 - Kilograms led Bit 7 - Not used

SUB-CMD Meaning
DI The HI 2151/30WC will return two bytes for the dip
switches. Dip switch #1 is the one on the rear panel
and Dip Switch #2 is internal to the unit located on
the bottom power relay board.

7-14
 Chapter 7 - Operation

Dip Switch #1 (S3)

Position Bit Function ("ON" position)

1 80 Multi-drop
2 01 Calibrate toggle (Non NBS applications)
3 40 Serial command lockout (Requests OK)
4 02 Option menu lockout
5 04 Set point menu lockout
6 20 Spare
7 08 Lb/Kg, N/G, Tare and Zero lockout
8 10 Zero track

SUB-CMD Meaning

Dip Switch #2 (S2)

Position Bit Function ("ON" position)

1 08 Ignore incoming checksums

2 10 On is averaged peak hold, Off is instantaneous
peak hold
3 20 NBS
4 04 NBS Re-Cal toggle switch
5 40 Spare
6 80 Spare
7 02 Spare
8 01 Spare

SUB-CMD Meaning

E Excitation Monitor
ERR
OKK
OFF

3. E IT® serial command

Results Description

OKK No Errors Detected

ERR Error Detected
OFF IT is Not Turned On

4. I Load cell input command. Used primarily to

check the analog input section of the unit. The command
will return the number of averaged counts that is currently
being read from the load cell input.

7-15
HI 2151/30WC MANUAL

SUB-CMD Meaning

REM Level status of the Remote Input connector (J2)

pins.

Bit Remote Function Bit Remote Function

01 Rate of change 10 Net

02 Totalizer 20 Lbs/Kgs
04 Display Hold 40 Tare
08 Option Hold 80 Print
5. Q The query command obtains a block of information as
follows:

SUB-CMD Meaning

A. Gross weight (6 bytes plus label)

B. Net weight (6 bytes plus label)
C. Peak gross value reached (6 bytes plus label)
D. Internal counts (6 bytes)
E. Total net accumulation (6 bytes plus label)
F. Rate of change value (6 bytes plus label)
G. Not Used (6 bytes set to 000000)
H. Not Used (6 bytes set to 000000)
I. LED status (4 bytes)
J. Relay status (2 bytes)

Command Meaning
F Format the output data. Used to
configure data to be sent on a
TRANSMIT or PRINT request.
The SUB-CMD letters can be
issued in any combination or
order and are as follows:

SUB-CMD Meaning
G Gross
N Net
T Tare
R ROC
S Set point, Deadband, Preact
NOTE: The last (6th) position is one of the following (must be accompanied by at least one of
the above SUB-CMDs):
- Continuous printing.
P Button on front panel "triggers" output.
NOTE: The default FORMAT is GNTRSP.

7-16
 Chapter 7 - Operation

M Monitors the specified SUB-CMD data as fol-

lows by requesting a report whenever a change
in the type of status occurs.
CAUTION DO NOT USE THIS MCOMMAND IF THE SYSTEM IS CONFIGURED IN
RING OR MULTIDROP MODES. IF USED IN MULTIDROP MODE, IT WILL
CAUSE DATA TRANSMISSION PROBLEMS. IT IS INTENDED ONLY FOR
SINGLE UNITS.

SUB-CMD Meaning
R xx Relay number where xx is a two ASCII digit value.
D xx Dipswitch number where xx is a two ASCII digit
value.
L xx LED number where xx is a two ASCII digit value.
Use this command to request a report when a change in status occurs in
the subcommand selected. You may request the status of the Relays,
Dipswitches, or LED's. Only one MONITOR subcommand may be
issued per command. After the command is received, the instrument
immediately sends back the present status of the subcommand request-
ed followed by a # sign and a bell character (cntrl G). This can be used
to mark the beginning of the MONITOR command. To select which
particular relays, dipswitches, or LED's you want to monitor, enter the
appropriate 2-byte Hexadecimal number after the subcommand. To
shut off a MONITOR command, enter the MONITOR command, sub-
command, and Hex 00.

SUB-CMD Meaning
S Set specified SUB-CMD data as follows:

SUB-CMD Meaning
S y xxxxxxx Set point value.
D y xxxxxxx Deadband value.
P y xxxxxxx Preact value.

xxxxxxx is up to a seven digit ASCII value.

y is the Set point Relay number.
NOTE: The above xxxxxx data may be followed by a MODE as follows:

Mode Meaning Mode Meaning

N Net T Total
G Gross P Peak
R ROC

7-17
HI 2151/30WC MANUAL

For example, to set point one to 1000 Lbs gross on instrument number
10, the outgoing command would be as follows:

7 BYTE 2 BYTE CHECKSUM

START INSTRUMENT SUB
CMD CMD DATA MODE CR EOT
CHAR ADDRESS CMD
D-7 . . . D-1 CHK-1 CHK-2

> 10 S S 1 1000 G CR CHK-1 CHK-2 EOT

NOTE: The example uses decimal and mnemonic abbreviation format for clarity, however,
the actual data would be in ASCII format.

Command Meaning
C Allows you to change modes between Net/Gross,
lb/kg, or Hold/Unhold Display.

SUB-CMD Meaning
M Toggles between Net and Gross weight mode.
U Unit (toggles between Lbs. and Kg.)
H Toggles between display hold and unhold.

Command Meaning

A Used to auto tare or auto zero the instrument.

SUB-CMD Meaning
T Auto tare the instrument. (Scale must not be in
motion.)
Z Auto zero the instrument.(Scale must not be in
motion and mode must be set to Gross)
P Print command. Functionally the same as the print
button on the key board.

The data setup through the format command will be

sent to the port configured as a printer.

Command Meaning

P1 or P2 Print to either ports 1 or 2.

An optional "subcommand" of up to 37 ASCII characters may be

entered and will be printed before the formatted data.

SUB-CMD Meaning
37 ASCII characters maximum.
H The ASCII characters supplied in the subcommand
(maximum of 20 characters) will be printed as a
heading and saved for each subsequent X - transmit

7-18
 Chapter 7 - Operation

or P - print command requested. Heading is not

stored in the Secure Memory Module.
To remove the heading, transmit H with no subcom-
mand.
H1 or H2 The ASCII characters supplied in the subcommand
(maximum of 20 characters) will be printed as a
heading and saved for each subsequent X - transmit
or P - print command requested.
To remove the heading, transmit H1 or H2 with no
subcommand.
N Adds the current net weight to the accumulated
total.
E A two ASCII digit hex number is transmitted with
this command to enable a relay to be under the con-
trol of it's set point value. The power-on default is all
relays enabled.
! This command is used to reset instrument communi-
cation. It is typically used when an error or unintelli-
gible response is received from the instrument and
should used sparingly. It is recommended that it not
be used during "normal" communication retries (i.e.
unintelligible response), but instead be used as a last
resort (no response after retries are exhausted).
Internally, it performs the same operations as done
on instrument power-up. Refer to the REL Sub-
Command under the X (Xmit) Serial Commands
Command Set.

Parallel BCD
Communication

Operating Step 1. The BCD option is setup by first entering the Option Menu
Procedures and selecting the BCD menu. The menu display shows a com-
bination of GNTDP (G = gross, n = net, T = tare, D = display,
P = print). (See Chapter 5 for setup instructions)
Step 2. The user may select which data will be present at the output.
If the "P" or print flag is selected, the data will only change at
the output once the PRINT button is pressed or the remote
functions print has been activated. Otherwise, the output will
be continuous.
Step 3. You can trigger the output by any of the following methods:
• By pressing the PRINT button.
• By sending a command over the serial port.

7-19
HI 2151/30WC MANUAL

• By connecting the remote functions print to the remote

functions ground.

Step 4. The output can be tri-stated if the OUTPUT DISABLE is

brought low. This is useful for multiple parallel outputs to be
connected to the same device. Once this input is brought high,
the latched data will be accessible again. The PRINT output is
normally low and goes high for 25 milliseconds. If the oppo-
site polarity (normally high, pulsed low) is desired, move
jumper from W1 to W2.

BCD Print Step 1. The weight select mode tells the output device which type of
data is present.
Step 2. The user selects which type of data is desired by toggling
"GNT" under the option BCD sub-menu.
Step 3. If all three types of data are requested, then all three will
appear on the output one after the other, 10 milliseconds apart.
Step 4. If "d" is selected, the output will follow the mode being dis-
played.

Output Disable Data output is discontinued if the OUTPUT DISABLE, pin 22 on the
PWA (pin 30 on the D-Subminiature connector), is low. The data pins
will be tri-stated even though print pulses will be sent.

Rate of Change (See Chapter 5 for Setup Procedures) The Rate of Change Option
(ROC) is used to measure the rate at which a material enters or is dispensed
from a vessel over a given period of time.
To develop ROC data, a Register is used that is 21 entries in length.
New weight is input to the register at the rate of 1/20th of the Time
Base. The 1st register is subtracted from the 21st register. The 21st reg-
ister is one Time Base older than the 1st register. The results of this
subtraction are divided or multiplied, as necessary, to equal the appro-
priate measurement time for display, U-SEC, U-MIN, U-HOUR.

Example In this example the units of display are units per minute (U-Min) with a
Time Base of 10 seconds. Every ½ second new data is inserted into the
1st register and old data is shifted down one register. The 1st register is
subtracted from the 21st register and the results are multiplied by 6 so
the Time Base results of 10 seconds corresponds to Units per Minute.

100

102

104

106

108

110 21st - 1st (x) 6 = ROC

112

7-20
 Chapter 7 - Operation

114 140 - 100 = 40 (x) 6 = 240

116

118 At time one there is 100 lbs on the scale.

One half second later there is 102 lbs on the
120 scale. At time twenty one, 10 seconds later-
there is 140 lbs on the scale. A 40 lb
122
change in 10 seconds converts to 240 lbs
per minute.
124

126

128

130

132

134

136

138

140

Rate of Change • Rate of change data can be transmitted through the standard or
Data optional serial ports or the analog output. It can also be displayed
numerically or as a bar graph.

Peak Hold Mode Option The Peak Hold Option, when selected, will display the highest gross
value that has been measured or the averaged peak gross value. Peak
does not need to be displayed in order to capture the peak value. (See
Chapter 4, Section 4.6 for Configuration Information)

To display PEAK Step 1. Press the MODE button until the "PEAK" LED indicator is
HOLD: lit.
Step 2. The value now displayed is the highest gross value that has
been measured since last RESET.

To reset the Peak With the Peak Value displayed, press the -/TEST/CLR button.
Value to zero:

To exit Peak Hold Press the MODE button until desired mode is indicated.
mode:

Totalizer Mode Option When Total Option is selected, the display will indicate the accumu-
lated total net weight stored in the total register. To Setup the Totalizer
Mode Option See Chapter 5.

To display the Total Press MODE button until the "TOTAL" indicator is illuminated. The
Value: value displayed is the total accumulated net weight.

To print the Total With the Total displayed, press the PRINT button.
Value:

7-21
HI 2151/30WC MANUAL

To clear the Total: With the Total displayed, press the TEST/CLR button. The Total Regis-
ter will now be reset to zero.

To exit the Total Press the MODE button until the desired mode is indicated.
Mode:
NOTE: The Peak Hold and Totalizer modes do not support the LB/KG button or LB/KG
remote input. They will display and transmit only the mode the instrument was cali-
brated in.

Allen-Bradley Remote I/O See the Allen-Bradley Remote I/O Installation and Operation Manual
Option -B8 (P/N 0596-0173) for complete Operating Instructions.

Profibus Interface Option See the Profibus Installation and Operation Manual (Prt. # 0596-0211)
-B12 for complete Operating Instructions.

7-22
 Chapter 8 - Troubleshooting

CHAPTER 8 - TROUBLESHOOTING PROCEDURES

Chapter Eight covers the procedures for troubleshooting the electrical,
mechanical and firmware elements of the HI 2151/30WC Weight Con-
troller in the event of a malfunction. A flow chart provides a road map
for troubleshooting a weight control system, including load cells,
weight controller and cabling. Chapter Eight also provides instructions
for using Hardy's INTEGRATED TECHNICIAN™ software utility to
isolate problems that may occur in a weight system.

Disassembly and • Always disconnect the power cord before disassembling.

Reassembly Notes • Make sure that any disassembly is done in a clean, well ventilated,
and Cautions properly controlled static environment.
• Always make sure that the assemblies and sub-assemblies are well
supported and insulated when doing any repairs on the HI 2151/
30WC Weight Controller.
• Place small fasteners, connectors and electrical parts in closed con-
tainers so as not to lose parts during reassembly.
• Read all the disassembly instructions before any disassembly
begins. Be sure that you are familiar with the procedures. If any of
the instructions for disassembly are unclear, contact Hardy Solutions
Customer Support Department for additional information
and assistance.
• Do not disconnect any electrical plug, connector or terminal unless
an identification tag is present or one is attached. Always note
where the connector or plug was attached to the electrical compo-
nent or wiring harness.
• Always install complete hardware groups (Screws, Washers, Lock
Washers, Spacers, Etc.) back to the original point of removal.
• Always replace broken or damaged modules or hardware immedi-
ately!
• Always check to be sure that no loose parts are sitting on printed
circuit boards or electrical connectors or wires when disassembling
or reassembling.
• Always protect printed circuit boards from electrostatic discharge
(ESD). Always use approved ESD wrist straps and anti-static pads
when working on the PROFIBUS Interface Card.
• Always perform a final inspection after completing any reassembly
to be sure that all fasteners are tight, all connectors are secure and
there are no loose parts on any of the printed circuit boards in the
HI 2151/30WC.
• Always follow proper safety procedures when working on or
around the HI 2151/30WC Weight Controller.

8-1
HI 2151/30WC MANUAL

Trouble Shooting
Using Integrated
Technician

NOTE: Systems using the Integrated Technician features relating to the isolation or measure-
ment of the instrument-junction box cable, the junction box and individual load sen-
sors or the measurement of weight or voltage of the individual load sensors, require
an HI 215T series junction box.

8-2
 Chapter 8 - Troubleshooting

NOTE: Systems using the Integrated Technician features relating to the isolation or measure-
ment of the instrument-junction box cable, the junction box and individual load sen-
sors or the measurement of weight or voltage of the individual load sensors, require
an HI 215T series junction box.

8-3
HI 2151/30WC MANUAL

NOTE: Systems using the Integrated Technician features relating to the isolation or measure-
ment of the instrument-junction box cable, the junction box and individual load sen-
sors or the measurement of weight or voltage of the individual load sensors, require
an HI 215T series junction box.

8-4
 Chapter 8 - Troubleshooting

NOTE: Systems using the Integrated Technician features relating to the isolation or measure-
ment of the instrument-junction box cable, the junction box and individual load sen-
sors or the measurement of weight or voltage of the individual load sensors, require
an HI 215T series junction box.

8-5
HI 2151/30WC MANUAL

NOTE: Systems using the Integrated Technician features relating to the isolation or measure-
ment of the instrument-junction box cable, the junction box and individual load sen-
sors or the measurement of weight or voltage of the individual load sensors, require
an HI 215T series junction box.

8-6
Chapter 8 - Troubleshooting

8-7
HI 2151/30WC MANUAL

General Troubleshooting Flow Chart Index

8-8
 Chapter 8 - Troubleshooting

A - Guidelines for
Instabilities on
Formerly Operating
Systems

Press TST/CLR: To START INTEGRATED TECHNICIAN

A ( I.T.) diagnostic program

Select System Check: SYS_TST Press: ENTER

This program level

isolates the instrument
from the rest of the
weigh system and Monitor the display for
checks the internal stability
electronics stability

STABLE ? NO A1

This next step isolates Yes

the controller and
loadpoint signal cable Press ENTER Verify tight cable connections and
from the weight to continue testing cable integrity.
vessel. Tests the
controller and loadcell
signal cable to the I.T. Monitor the
JUNCTION BOX. Display for stability NO
YES STABLE ?

NO
STABLE ?
Replace
Integrated Technician
Summing card

YES

Cont.
YES STABLE ?
C

NO

B1

8-9
HI 2151/30WC MANUAL

A1 - Guidelines for
Instabilities on
Formerly Operating
System (Cont'd)

A1

UNSTABLE WEIGH CONTROLLER

(Internal check)
SYSTST (cont.)
INTREF

Disconnect external signal cables and

shields, except AC power.

Monitor the display for

stability

YES STABLE ? NO

Reconnect signal
cables one at a
time.
Problem could be in
the instrument. Contact
Hardy Customer Support.
800-821-5831
Monitor the display for
stability.

If installing any cable causes

unstable readings. GOTO
REVIEW TROUBLE-SHOOTING B
SECTION B: B1.1 -B1.7

8-10
 Chapter 8 - Troubleshooting

B - Guidelines for
Instabilities on
Formerly Operating
Systems (Cont'd)

B Check for
Electrical Stability

OK ? No
B1

Yes

Check for
Mechanical Stability

OK ? No B2

Yes

Check Configuration
settings for
Stability

OK ? No
B3

Yes

GOTO
A
Re-run I. T.
Diagnostics

8-11
HI 2151/30WC MANUAL

B1 - Guidelines for
Instabilities on
Formerly Operating
Systems (Cont'd)

B1 Electrical

B1.1 Physical Grounding -

All common equipment share a common ground point.
Keep the ground cable length to earth ground as short as possible.
Install a new ground rod if the cable length is excessive.

Cable -
B1.2 Cuts or breaks in the loadcell cable insulation allow moisture to wick into the
cable and loadpoints. This can setup stray capacitance charges and allow
ground currents to exist. This could create a highly intermittent situation.

Vessel, Fill and discharge piping -

B1.3 Ground all to a common point to eliminate electrical differences in potential,
and static build-up.

Loadcells -
B1.4 Ground straps must be installed to provide a direct discharge path to ground
around the loadpoints.

Cable Routing -
B1.5 Seperate high voltage sources and cables from low voltage signal cables.
Stay a minimum of 14 inches from Magnetic fields and SCR controls.
Avoid parallel high voltage and signal cable runs.

Cable Shielding -
Ground low voltage cable shields only at the controller end.
B1.6 Grounding both cable ends will produce ground currents.
Verify, with an ohm meter, the shield is only grounded at the weight controller.
Disconnect the shield at the controller and check for an open circuit between ground
and shield. Reconnect the shield to ground and confirm a proper ground path from
the I.T. Junction box to the controller.
Verify the shield is not connect to ground at the I.T. Junction Box.
Loadcell cable shields only pass thru the I.T. Junction Boxes and are not connected
to ground at that point.

B1.7 GOTO
Weight Controller - Common AC ground and Chassis grounds.
B

8-12
 Chapter 8 - Troubleshooting

B1 - Guidelines for Instabilities on Formerly Operating Systems (Cont'd)

Mechanical Stability

Vessel -
B2 When inspecting a vessel keep in mind, the Center of Gravity (COG) should be
low and centered equally over all the load cells.
Insure the load is directly over or under the load point to avoid side-loading.
Insure there isn't any side loading from piping or external forces.
Install flexures on all piping to insure a free floating vessel.
Insure the vessel and loadcell mounts are mechanically stable and fixed.
Stable ? No Large changes in individual Loadcells indicate a shift in COG or faulty
Loadcells.

Piping and motors will effect the individual loadcell readings.

Allow for a higher reading on Loadcells that support motors and piping.

Insure pneumatic lines are not applying pressure to the vessel when energized.
Yes
Use check (stay) rods to minimize vessel movement.
Insure the check rods are loose and not interacting with the vessel.

Power down all vibration, vacuum and pressurization equipment during the test
process.

B3
Configuration settings

Incorrect Waversaver settings can cause unstable weight readings

Stable ? No

Adjust to the lowest WS setting that gives you a stable reading.

Higher frequencies with low amplitude vibrations; - Use WS settings 1 or 2
Low frequency with high amplitude vibrations; - Use WS setting 3 and higher.

Incorrect number of decimal places; Reading weight increments beyond the

equipments applications level. (see guideline caluculations below)
Yes
Repeatability -
Divide the total loadcell capacity, including decimal points, by 10,000.
(expected stable weight reading).
Resolution -
Divide the total loadcell capacity, including decimal points, by 30,000.
(The amount you can expect to see, but not necessarily stable)
Return To
A
I.T. Diagnostics

8-13
HI 2151/30WC MANUAL

C - Guidelines for
Instabilities on
Formerly Operating
Systems

C
SYS_TST (cont.) REF_LS
Press ENTER This program checks individual Load
Sensors.

Record Load
Sensor data for
comparison. If
stable or not.

At the I.T. JUNCTION BOX

Next Press: ENTER NO
loadpoint To continue checking Remove and Replace
load Sensors the load sensor(s) determined to be faulty.

Repeat for all load

Sensors YES stable ? NO

Replace summing card

STABLE ? Re-install all load
sensors

TEST
YES YES STABLE ?
COMPLETE

NO

If you are unable to isolate the instability:

Compare your results by testing the vessel when empty
and then re-testing under load.

GO TO B for additional system checks

OR
Contact Hardy Process Solutions
Customer Support
800-821-5831

8-14
 Chapter 8 - Troubleshooting

E - Non-Return to
ZERO

Scale capacity limits at empty have been

exceeded. Check for product buildup.
E Error 6? Yes
The vessel must be within tolerance to
adjust this Gross zero reference point.
See box E1 for additional test
NO suggestions.

Press TST/CLR Intergrated Technician This program level checks, records and
Select RTNTO0 compares the milli-volt output of each
(Return to zero) individual loadpoint
Press: ENTER

This program level reads and compares the

Down Arrow and Select milli-volt output of each individual loadpoint to
TEST_E the values recorded at calibration. Out of
tolerance readings flag an error
Press: ENTER

LS1? Yes ERROR? Check load sensor ONE

NO

LS2? Yes ERROR? Check load sensor TWO

NO F
LS3? ERROR? Check load sensor
Yes
THREE

NO

LS4? Yes ERROR? Check load sensor FOUR

No

Additional Testing Suggestion

Verify cable connections and cable integrity.
TEST COMPLETE REVIEW TROUBLE-SHOOTING SECTION
E1 F Individual loadcell Milli-volt readings
A Verify Sensor readings are stable
B Electrical and Mechanical Guidelines.

8-15
HI 2151/30WC MANUAL

F - Verify Individual
Load Cell Milli-volt
Readings

Using the load cell certificate, verify the Milli volt per volt rating
Example: 3 mV/V load cells will produce approximately 15 mV at full load.
F That is 5 volts excitation X 3 mV/V. A scale capacity of 1,000 lbs with 100
lbs of deadload at empty the loadpoint mV reading should equal 1.5 mV.

Press TST/CLR 1) No dead load.

START Apply load and re-test.
INTEGRATED TECHNICIAN 2) Wiring error.
( I.T.) Verify color code using the
diagnostic program
Zero mV load cell certificate.
reading 3) Open bridge circuit.
Disconnect power and verify
loadpoint bridge resistance
DVMTST reading with an Ohmmeter.
Select DVMTST checks individual
DVMMV load sensor output
Press: ENTER mV readings.
1) Stressed load cell, remove
all load and re-test.
High mV 2) Excessive loading.
reading For additional
Press: ENTER
testing go to: H
To check load NO
sensor

NEXT
Record load
sensor mV output
Negative
mV reading K
level for
comparison.

Repeat for all load

sensors
Unstable
reading A
mV
readings Defective load cell?
acceptable? Replace and repeat
TEST F

Yes

If you are unable to determine the Milli-

volt readings. Go to
TEST COMPLETE K Load sharing
OR
Contact Hardy Customer Support
800-821-5831

8-16
 Chapter 8 - Troubleshooting

G - Error 18 During
Hard Calibration

ERROR 18

G
The difference between zero and span is less than +100
counts.
There are two places during HARD CAL where error 18 can occur.
ZERO and SPAN

ZERO SPAN

The new Zero Reference (ZRCNT) is larger The milli-volt signal reading did not show a positive
than the original Span (FSCNT) increase.
(1) At ZERO, arrow to SPAN (1) Use INTEGRATED TECHNICIAN to verify
(2) Add the test weight to the scale Milli-volt levels.
and perform the SPAN entry. (2) Compression Load cells can be installed
(3) After SPAN GOOD, arrow back to upside-down. Giving negative signal readings.
ZERO (3) Mechanical binding restricts the scales
(4) Remove the test weights and set movement.
the ZERO reference point (4) Load cell wires disconnected or improperly
(5) Again perform the SPAN wired.
operation and continue with the (5) Improper load sharing or mechanical loading
calibration. on the load cell.
The SPAN weight to small.
(1) 100 counts out of 985,000 is very small
(100,000 lb scale would require 11 lbs.)
(2) Mechanical binding can mask weight readings

ERROR
18
?
YES NO

Contact
Hardy Solutions Proceed with
Customer Service. Calibration.
800-821-5831

8-17
HI 2151/30WC MANUAL

H - Mechanical
Inspection

1) Keep flexures on the horizontal

2) Vertical flexures should be avoided
3) Do not use flexures to correct for misaligned piping

H
4) Do not use hose flexures to make right angle bends
5) Non-flexed piping should have an unsupported
horizontal run using a ratio of 36 times it's diameter.
6) Pipe flexure lengths should be a ratio of 6 times it's diameter
7) Feed and discharge piping flexed
8) Are the flex joints on the correct side of the valve ?
(a) You weigh the output valve, not the input valve
(b) Does the weigh scale see all the product to be
weighed?
All pipes and conduits
H1 flexible?
(c) If the product applies a force to a valve or pipe, that .
pipe or valve must be included in the weigh vessel.
(d) Proper positioning of the flexures are key.
(e) Your vessel must seem to float.

1) Floors or structure does not interact.

Mechanically isolated from 2) Local traffic does not interact
H2 ladders and connecting 3) Protected from forklifts and adjacent processing
structures? equipment

1) Level, solid mounting base

Are the load cells 2) The load cell is mounted right side up.
H3 properly mounted? 3) All load cell bolts installed using anti-seize compounds.
4) Mechanically aligned to compensate for expansion and
contraction.

Are Check rods 1) Protects the load cells from overload and impact forces
installed to dampen 2) Limits the movement of the vessel
H4 3) Rods must be loose and not interacting with the vessel.
vessel movement?

1) Separate conduit for low and high voltage cables.

2) Do not bundle Low voltage with High voltage cables
Are cables routed
H5 properly?
3) Maintain at least 3 inches of seperation.
4) Maintain 14"seperation from magnetic fields and 440 vac.
5) Cables are in conduit or tied up and protected from damage.

1) Product, tools and production aids are off the vessel.

H6 Housekeeping 2) No workers are physically on the scale
3) Must protect equipment from environmental damage
4) Insure openings are sealed to keep water and environmental
contaminates from damaging:
(a) Instrument cabinet or enclosure
(b) Summing card
To (c) Load Cells
Verify Electrical (d) Conduit runs
Go to (e) covers are properly installed

8-18
 Chapter 8 - Troubleshooting

J - Electrical
Inspection

J
DO NOT POWER UP THE CONTROLLER UNTIL
INPUT VOLTAGES CAN BE VERIFIED.
1) Check the specification label attached to the weight controller
chassis. (110 vac or 220 vac?)
2) Use a meter to verify neutral, ground and Hot are proper.
J1 Verify the proper voltage 3) Computer grade power
level has been supplied. 4) Use Active filters for motor noises and spikes.
5) Use Isolation transformers to combat surges and sags.
6) Isolated from SCR and motor control circuits
7) Use a Common earth ground.
a. Keep ground cable runs as short as possible
b. Excessive ground cable runs can act as an antenna
for AC noise
c. Install grounding straps around load cells to direct
static away from the load cell and directly to ground.
d. Install ground straps on the input and discharge
piping, and the vessel to a common earth ground.

Apply power to the 1) Verify the front display illuminates.

J2 controller only if supply 2) Completes the initialization process
voltage is correct. 3) Displays a weight reading. This weight value will not be
correct if a calibration procedures was not performed.

1) Press the MODE Button to display NET weight.

J3 Does the scale reflect 2) Press the TARE button to ZERO the NET weight.
a weight change? 3) Apply weight to the vessel
(a) Does the weight increase and decrease in the
correct direction with the weight?
(b) Does the weight return to ZERO NET?
(c) The weight value will not be correct until a proper
calibration is complete.

1) Use the load cell certificates to verify color code Input is

J4 Cabling excitation, Output is signal.
2) Shielding
a) Grounded only at the weigh controller
b) Continuous shield connection from the Load cell cable
to the controller. Single point EMI/RFI drain.
c) Terminated, but not grounded, at the summing box.
To Verify Proper Load Cell 3) Sense lines installed?
Operations Go to a) Jumpers or sense lines in the J1 connector ?
b) Sense lines must be installed for C2 of Softcal
K 4)
calibration
Using Integrated Technician SYSTST verify readings.

8-19
HI 2151/30WC MANUAL

K - Load Sharing
and Load Sensor
Checkout

1) Does the mV signal increase in a positive direction.

2) If you receive a negative results, check if load cell is
mounted correctly.
K a)
b)
The arrow goes with the direction of force.
If there isn't an arrow, you must manually verify
the correct direction. A negative reading
indicates the load cell is upside down.
c) Load cells in tension will not reflect a negative
reading if install upside down. If upside down,
Load cell wiring is only the force applied by the cable would be
K1 complete and included in the weight readings.
correct? d) If you are still receiving a negative signal, verify
load cell wire color code

1) Verify a positive reading from each load cell, using

Intergrated Technician's DVMTST, DVM MV.
2) Record the mV reading and compare each corner for
proper load sharing.
a) Proper load sharing should see only a difference
of +/- .5 mV.
b) Larger differences due to motors and piping,
should not exceed +/- 2 mV.
Multiple load cells? c) If there isn't any motors, valves, or piping to
K2 MAP the mV reading. explain the mV difference, adjust the
Balance the load corners and balance the mV readings.
d) Use shims, or if equipped adjusting bolts on the
load cell mounting hardware.
e) Drawing a load cell map will help determine the
correct leg to adjust and in which direction.

Three load cells balance like a three legged chair.

1) Using a sprit level, verify the vessel is vertically and
horizontally correct.
2) Verify if any height change will effect the attitude of adjacent
vessels or piping.
3) Adjust each legs to dynamically match mV outputs
4) Verify the mV readings and physical level when complete.
Four load cells or more present a challenge.
1) Use Integrated Technician DVMTST, DVM MV
Determine the sum of the load cell signals and your target
mV setting for each load cell.
2) Read the output of individual load cells.
3) Adjust the load cell with the lowest reading to dynamically
match the target mV readings obtained in step 1.
Monitor system for proper 4) Read the mV readings from each load cell to verify a proper
correction.
operation.
5) Repeat step 3 and 4 to achieve a proper load sharing vessel.
Check out complete 6) Verify the mV readings and vessel level when complete.

8-20
 Chapter 8 - Troubleshooting

M - HI Error

HI
The Load sensor output Signal has exceeded the
M millivolt limits set in Configuration and/or the Internal
factory setting.

1) Verify the signal wires are properly connected.

a. Verify load cell cable color code
(1) Load Cell Certificate.
(2) Installation manual.
(3) Cable marking strips.
b. Broken signal wires act as antenna for EMI/RFI.
c. Load cell cable shields must be grounded only at the Weight
controller to dampen EMI/RFI signals.
2) The load cell output Signal voltage has exceeded 15 mV dc
a. Use INTEGRATED TECHNICIAN to verify mV levels.
(1) Verify total milli-volt signal level.
(2) Verify individual load cell milli-volt signals.
(a) An individual load cells may be over-ranged
and exhibit high milli-volt readings.
(b) Possible physical damage to the load cell.
(c) Internal Strain gauge bond broken.
(d) Moisture in the load cell cable or body.
3) Weight in the hopper exceeds the configuration Scale Capacity setting.
a. Under configuration verify the Scale Capacity setting.
b. 105% of the Scale Capacity setting will cause a HI indication.
c. This is used only as a warning and does not effect calibration.
d. Optional communication signals are unaffected by this
indication.
4) Weight in the hopper exceeds the load cell capacity
a. Mechanical forces or product acting on the scale overloads the
load cells.
b. Use INTEGRATED TECHNICIAN to verify Milli-volt levels.
5) Review Mechanical and Electrical Flow charts for additional tips. B1

HI
ERROR
?
YES NO

Contact Proceed with

Hardy Solutions
Customer Service.
Weighing
800-821-5831 Process

8-21
HI 2151/30WC MANUAL

N - Blank Screen

N Weight Controller's front display is blank

Measure A.C. Power 1) Check for proper power at J6

at J6 No and the source connection.
OK? 2) Check the circuit breaker at the
source
Yes

Measure the excitation

voltage at J1. No Check the power fuse located inside
5 vdc ? the case.
OK?
Yes
Yes
Contact No
Hardy Solutions
Disconnect all the
Customer Service
connectors from the
800-821-5831
back panel except
power. Replace the 1/2
amp slo-blow fuse
and apply power.
Measure the
Excitation voltage Does the fuse blows
at J1. again?
5 vdc?

Yes

1) Reconnect the jacks one

at a time checking the 5 vdc
YES
excitation. No
2) If reconnecting any jack
effects the 5 vdc, check for
wiring errors.

Display OK
Contact
Hardy Solutions
Monitor system for proper NO Customer Service
operation. 800-821-5831
Check out complete

8-22
 Chapter 8 - Troubleshooting

O - Excitation
Monitor

Excitation Monitor

Continuously monitors the system excitation current. Checking for open or shorted load sensors,
or damaged or broken excitation wire(s). This includes the wires between the instrument and the
junction box. If the measured current ReadR deviates from the BaseR, an "ERRExC" (Error
Excitation) displays on the front panel. In a system with C2 load sensors, IT computes the correct
current and displays alarms if the initial measured current is out of tolerance. Without C2 load
sensors the initial current read becomes the standard, whether the initial current is right or wrong.

O
A comparison error has been detected by the load cell excitation
monitoring system. For more information on Excitation monitor
ERREXC setup, see chapter 8 in the HI2151/30WC manual.

The current measurements stored during calibration is that of a

System was simulator or system with Intrinsic Barriers and not the present
calibrated using a load cells. You will need to turn off the Excitaion monitor. The
simulator or Intrinsic YES values can only be set during calibration using the load cells.
barriers are present Record the readR value and use for future comparison.

NO ErrEXC Displayed on a formerly operating

system.

1. Compare the BaseR and the ReadR

readings.
Load cell input is
actually damaged.
YES These are the readings, in ohms, of
the load cell(s) connected in parallel.
a. A low reading indicates a
shorted or miswired load cell.
NO b. A high reading indicates an
F open or missing load cell.
2. Isolate and measure the individual
Load cell load cell excitation OHMS and
Excitation wires compare to the load cell certificates.
YES
are disconnected. The Advantage load sensor
certificates are located on the
WWW.Hardyinst.com website.
NO ErrEXC Displayed on a new system.

1. Was calibration completed?

System is not 2. Are all wires properly terminated?
calibrated.
NO J3 3. Verify individual load cell resistance
readings.
4. If using C2 calibration, was the load
Contact cell count correct?
Hardy Solutions 5. Compare readings with the BaseR
YES and the ReadR. If correct, check for
Customer Service.
800-821-5831 barriers or miswired load cells.

8-23
HI 2151/30WC MANUAL

P - Stuck on
“HARDY” Screen

8-24
 Chapter 8 - Troubleshooting

System Integrity
Check and Fault
Determination
To determine if an instrument or cabling problem exists, verify the basic operation of the system by per-
forming the following system checks.

Self-Test 1. Self-test can be entered only from the net, gross or rate of change
operating modes.
2. To initiate self-test, press the -/Test/Clr button.
3. Press the Enter button.
4. The name of each test is displayed for about 2 seconds after which
the result is displayed for another 2 seconds. The self-test program
automatically steps through each test and continues through any
failed tests until all are completed.
5. When the self-test program has completed all tests, the instrument
returns to the keyboard test, which can be ended by pressing the 0/
exit button.
6. Speed up the self-test by holding down the UP arrow key. Pause the
self-test display by pressing the down arrow key. To resume the
self-test, press the up ↑ arrow key. To exit the self-test at any time,
press the exit key.
7. Write down the test results and compare them to the System Data
Survey Sheet. Determine if any differences are due to system modi-
fications, and update the Survey Sheet.
8. Following are the sequential tests conducted by the self-test pro-
gram:

DISPLAY TEST FAILURE SOLUTIONS

SLFTEST Indicates beginning of self-test. None

VER X.XX Version of EPROM installed. None

8.8.8.8.8.8 Display Test - All segments and words 1. Main card not seated
on display turned on. properly in display board.
2. Contamination on
connector pins.
3. LED display not
functioning.

ERREXC Indicates that the measured current is 1. New System Calibration

out of tolerance by ± 10%. has not been completed.
2. Load Cell is faulty.
3. Broken or Open excitation wire.

8-25
HI 2151/30WC MANUAL

DISPLAY TEST FAILURE SOLUTIONS

RAMTST Ram Test - Writes to each location None

in RAM & reads back and verifies data.
Test is non-destructive.

PASSED or Indicates whether RAM test passed 1. With most RAM failures
system will not operate.

FAILED failed. 1. Check that EPROM (U13)

on main board is seated.
2. Contact Hardy Process Solutions
for assistance.

OE OE Two hex numbers displayed; right one Discrepancy between two

(example) is actual checksum, left one is numbers indicates EPROM
calculated from test. The two numbers must faulty.
match. For each revision to EPROM
numbers will be different.

PASSED or If the two numbers matched, test will If failed, replace EPROM.
FAILED pass; otherwise fail is indicated. It is (If this doesn't eliminate
possible for EPROM to loose one or more the problem, there could be a
bits & still operate. BUS problem.)

SLOT 1 Indicates next display is for slot 1.

NONE or Indicates which type of option card is 1. Check connector for

OPTION installed in slot 1, if any. proper mating.
2. Try card in another slot.

SLOT 2 Indicates next display is for slot 2. 1. Check connector for

NONE or Indicates which type of option card is proper mating.
OPTION installed in slot 2, if any. 2. Try card in other slot.
3. Swap with spare option card.

CALTYP How instrument was calibrated None

NOTE: One of the next three messages will be displayed, depending on the type of calibration
that was performed

C2 CAL C2TM Second Generation Calibration None

H CAL Hardware Calibration None

S CAL Software Calibration None

UNITS Indicates next parameter will be units None

of measure.

8-26
 Chapter 8 - Troubleshooting

DISPLAY TEST FAILURE SOLUTIONS

KGS or LBS Kilograms or pounds. Default is Lb.

WSVR = 4 Indicates WAVERSAVER that was selected Default is 4.

In Calibration

GRAD Indicates next parameter will be None

graduation size.

1 or 2 or 5 etc. Graduation size calibrated in unit (least Default is 1.

significant digit on display will change by
this amount).

SPAN Indicates next parameter will be Span. None

10000 Span value calibrated in unit. Default is 10,000.

(example)

ZR CNT Indicates next parameter will be A to D

counts representing the Zero Count. --

36780 A to D counts that indicate the calibrated Default is 36780.

(example) Zero.

FS CNT Indicates next parameter will be Full Scale None

Count. 0 in most significant digit indicate
value >1,000,000.

992000 A to D counts that indicate the Calibrated Default is 992000.

(example) Span Value.

SC CAP Indicates next parameter will be Scale None

Capacity.

999999 Scale capacity value calibrated in unit. Default is 10,000.

(example)

0 TOL Indicates next parameter will be Zero None

Tolerance.

10 Zero Tolerance value calibrated in unit. Default is 10.

(example)

AO TOL Indicates next parameter will be None

Auto Zero Tolerance
10 Auto Zero Tolerance set during calibration None

8-27
HI 2151/30WC MANUAL

DISPLAY TEST FAILURE SOLUTIONS

MOTION Indicates next parameter will be None

motion value.

3 Motion value calibrated in unit. Default is 3.

(example)

AVRAGE Indicates next display will be number of None

values set in the running average table
(1 - 200).

100 Number of values set up to be averaged. Default is 100.

(example)

LINCOR Indicates next display will be single point None

linear correction.

0 If 0, linear correction is not used. Number Default is 0.

(example) other than 0 indicates single-point calibrated
value.

AD OFF Indicates next display will be A to D None

Off Set.

28912 A to D Offset Value. None

ADGAIN Indicates next value will be A to D gain. None

828238 A to D Gain Value None

DIP 1 Indicates next display will be settings of If value is other than desired,
rear panel Config dipswitch S3 segments. reset dipswitch segment and
Settings represented by hexadecimal retest.
notation.

00 thru FF SWITCH VALUE ON OFF

POSIT

2 01 Cal toggle Cal toggle

4 02 Opt menu lock No opt menu lock
5 04 S.P. menu lock No S.P. menu lock
7 08 Tare, lb/kg, N/G, zero Keys not locked
lock
8 10 Zero track on Zero trk off
6 20 Spare Spare
3 40 Serial requests All serial I/O
only
1 80 P2 multidrop Not multidrop
8-28
 Chapter 8 - Troubleshooting

DIP 2 Indicates next display will be settings of If value is other than desired,
internal dipswitch S2 on power relay board. reset dipswitch segment and retest.
Settings represented by hexadecimal notation.

00 thru FF SWITCH VALUE ON OFF

POSIT

8 01 Spare
7 02 Spare
4 04 NBS Re-Call toggle switch
1 08 Ignore incoming checksums
2 10 On is averaged gross,
Off is instantaneous gross
3 20 NBS
5 40 Spare
6 80 Spare

LC CNT = 0 - 8
SN1 xxxx-xxxx
“ “ “
SN8 xxxx-xxxx
NOTE: LC CNT SN1 through SN8 is for C2 only.

TAG 1 Indicates next display will be value of If options are not as desired,
software control options. Settings another memory key must be
represented by hexadecimal notation ordered. Contact Hardy Process
Solutions Customer Support
Department.

DISPLAY TEST FAILURE SOLUTIONS

00 thru FF VALUE ON OFF

01 Bar-graph No bar-graph
02 Rate of change No ROC
04 Peak hold No peak hold
08 Hardy link No Hardy link
10 Optional relays No optional relays
20 Spare Spare
40 CAL SW override Normal CAL mode
80 Totalizer No totalizer

TAG 2 Indicates next display will be value of software control options.

00 thru FF VALUE ON OFF

01 Spare Spare
02 Remote clear total No remote clear total
04 Remote clear peak No remote clear peak
08 Partial Setpoint Lock

8-29
HI 2151/30WC MANUAL

Out (Only setpoint #1

Is Active. No partial setpoint lock out
10 Remote CAL (lb/Kg
Override for CAL
Switch No remote CAL override
20 Zero Button Enable on
Key Lockout No zero button enable
40 Remote Function Zero Spare

KEY - BD Indicates next display will be the keyboard test. Ensure the keyboard operates
properly by pressing each key, starting with the ZERO key in the upper left
corner of the keypad and moving from left to right. The LED will display each
key as it is pressed. Do not press the 0/exit key until you are ready to leave the
keyboard test.

IT ®Section appears. Press the Exit key to resume weighing mode of operation.

Interpreting These techniques are limited to external observations. Checking of

Diagnostic/Error internal test points and voltages requires special test equipment and
Messages exposure of the circuit cards during normal operation. This should only
be done by qualified technicians.

Overview of Typical 1. The typical system consists of one or more load cells/points, a sum-
Load Cell System ming junction box, and a weight controller (the HI 2151/30WC).
(See Figure 8-1).

FIG. 8-1 TYPICAL LOAD CELL SYSTEM

a. Load Cell/Sensor/Point - is a strain gauge based force transducer,

which generates an electrical signal proportional to the load applied
to the scale. Load cells/points can be used any place a person needs
8-30
 Chapter 8 - Troubleshooting

to measure pressure, load, or torque. This can be accomplished by

either Tension or Compression type load cells/points. The load cell/
point takes as an input the 5 volts DC Excitation Voltage generated
by the HI 2151/30WC, and depending upon how much weight is
applied to the scale, generates a millivolt output (proportional to the
weight, 0-10mv DC for 2mv/V load cells/points or 0-15mv DC for
3mv/V load cells/points).
b. IT Junction Box (Prt. # HI-215IT-SS1 - Stainless Steel, HI-215IT-
PS1 - Painted, HI-215IT-FG1 - Fiber Glass) - is a system control
box used to sum the incoming and outgoing signals of from one to
four load sensors or load cells. The Junction Box distributes the
excitation voltages to each load sensor/load cell and transfers each
load sensor's performance characteristics and weight signals to the
weight controller. The IT Junction Box when used with the HI
2151/30WC allows for some automated system diagnostics. It uses
connectors for isolation and troubleshooting of the weight system.
The IT Junction Box allows an operator to automatically switch in
an internal test circuit to perform a system stability test and read the
individual load sensor voltages (in millivolts or millivolt/volt) for
up to 4 load sensors from the HI 2151/30WC front panel. Bias volt-
ages will come from the load sensor excitation voltage and will not
affect calibrated weight readings. Switching commands come over
the C2 lines from the weight controller. Nomenclature on the board
will identify positions. The user will know where load sensors 1-4
are physically located by filling out a label mounted to the inside
top cover of the IT Junction Box.
c. Weight Controller - is an electronic instrument which, among other
functions, is used primarily to power the load cell(s)/point(s), take
the millivolt signal output from the load cell(s)/point(s), and digi-
tize, interpret, communicate and display the results as a weight
indication.

No Keypad 1. Config dipswitch S3 set to keypad lockout; reposition switch.

Operation 2. Check for "HI" on display. Whenever "HI" is displayed, the keypad
will be disabled except for the Cal Menu and the -/Test/Clr buttons.

Remote Functions 1. Check wiring at J2.

Non-operational 2. Ensure correct ground is used (J2 pins 9 or 10).
3. Check for correct setting of Config dipswitch S3, See Chapter 4,
Configuration.
NOTE: The HI 2151/30WC should have a quality power conditioning product installed
between the controller and the AC power source to reduce the likelihood of faults
caused by poor or intermittent AC power.

8-31
HI 2151/30WC MANUAL

Using Solid State

Relays with Light
Loads (Optional Set
Relays)

About Solid State There have been installations where solid state relays have been used
Relays With Light and failed to shut off a solenoid or relay when de-energized. The actual
Loads problem comes from the internal snubbing network in parallel with the
Silicon Controlled Rectifier (SCR) which does the actual switching.
This network presents an impedance of 30K ohms, which means with
120 volts across, it will pass 4mA of AC current.

FIG. 8-2 SCR SWITCHING LOAD CIRCUIT

1. The SCR itself presents no leakage current. Some solid state relay
manufactures specify 20mA minimum load. This is based on the
presumption a relay or solenoid will drop out with only 4mA
through it, which is not always true. That may not be true. When
switching a light load with a solid state relay across the line, you
must look at the rated drop-out current of the load, and if it is less
than 4mA it may not turn off. The solution is to put a loading resis-
tor in parallel with the light load, to be sure leakage current is suffi-
ciently shunted away from the coil.
2. Assume a load like a relay with a coil of 15,000 ohms and of 5% of
nominal drop-out. When the solid state relay is off, there will still
be 1/3 of the line voltages across the relay, so it will not drop out.
For the relay to have 5% of the line across it, it and a parallel shunt
resistor must be 20 times less resistance than the 30K snubbing net-
work, or 1.5K ohms. Use less than a 1.67K ohm parallel resistor
and now total load is below 1.5K ohm or 80mA.

8-32
 Chapter 8 - Troubleshooting

IT Test Menu
Breakdown

8-33
HI 2151/30WC MANUAL

Excitation Monitor
(Current) Setup
Menu

1. Press the -\Test\Clr button. SLFTST appears.

2. Use the up or down arrows to toggle between SLFTST and Inte-
grated Technician Security Code Number IT SEC.
3. Press the Enter button with IT SEC displayed.
4. Use the numeric key pad to enter 5321.
5. Press the Enter button.
6. Use the up or down arrows to select one of the following, Excita-
tion Monitor EXCMON, Digital Volt Meter Test DVMTST, Return
to Zero Test RTNTO0, System Test SYSTST or Self Test SLFTST.
Select the Excitation Monitor EXCMON.
7. Press the Enter button. The On Line ONLINE Sub-Menu appears.
8. Use the up or down arrows to select one of the following:
a. ONLINE - Press the Enter button. Use the up or down arrows to
toggle between ON and OFF. After a selection is made press the
Enter button to turn the online monitor ON or OFF. The BASE
R display appears. The Excitation monitor must be ON to
enable on line diagnostics. Press the Enter button, the BASE R
sub-menu appears.
b. BASE R - Displays the resistance reading taken at power up for
C2 load points or the reading taken at zero of hard or soft cali-
bration for no C2 load sensor. Press the Enter button. The
READ R display appears.
c. READ R - Reads the current resistance and display the value.
Press the Enter button, TEST R appears.
d. TEST R - Test the base reading against the current reading, and
displays R=GOOD or R=ERR.
e. Press the Enter button and ONLINE re-appears.
f. Press the Exit button. The Digital Volt Meter Test DVMTST
appears.

Digital Volt Meter

(D.V.M)
NOTE: The IT Junction Box must be used to display individual load sensors.

1. Press the Enter button. NUMLS# appears indicating the number of

C2 load cells. Press the Enter button. The Digital Volt Meter in Mil-
livolts DVM MV appears.

8-34
 Chapter 8 - Troubleshooting

2. Use the up or down arrows to toggle between Millivolts DVM MV

and millivolts per volt DVMMVV.
3. Press the Enter button to select either one. LS1 Load Sensor 1
appears. The display may also show LS1 indicating that the load
sensor is a C2 load sensor.
4. Use the up or down arrows to select whichever load sensor you
want to check LS1, LS2, LS3, LS4 OR LS ALL or press the Enter
button to move onto the next load sensor.
5. Press the Enter button. The controller reads the present value in
millivolts or millivolts/volt whichever was selected. The Millivolt
scale will display to one decimal place. The Millivolt/volt scale will
display to four decimal places.
6. Press the Exit button. The Return to Zero Test RTNTO0 appears.

Return to Zero Test

NOTE: The IT Junction Box must be used to display individual load sensors.
1. 1.Press the Enter button. NUMLS# appears indicating the number
of C2 cells found. Press the Enter button.
2. 2.Use the up or down arrows to toggle between the test voltage
TEST E and to read the base voltage BASE E.

a. Voltage Test TEST E

• Press the Enter button.

• Use the up or down arrows to select LS1, LS2, LS3, L24, or
LS ALL.
• To test, press the Enter button. The controller reads the volt-
age of the load sensor(s) and compares that value to the
stored value.
• The display may read LS#=OK or ERRLS# for each load
sensor if used with the IT Junction Box, ALL=OK or
ERRALL. If you get an error statement go to the trouble-
shooting flow chart Section K to resolve the problem.
• Press the Exit button to go to view the Base Voltage BASE
E.

b. View Base Voltage BASE E

• Use the up or down arrows to select LS1, LS2, LS3, L24, or

LS ALL.
• To view the base voltage reading, press the Enter button.
The controller displays the base millivolt value taken at zero
calibration.
• Press the Exit button to return to the TEST E Sub-Menu.
• Press the Exit button. The SYSTST (System Test) appears.
Go to step 8.6.4.5.

8-35
HI 2151/30WC MANUAL

Weighing System
Test
NOTE: The IT Junction Box must be used to display individual load sensors.
1. Press the -\Test\Clr button. SLFTST appears.
2. Use the up or down arrows to toggle between SLFTST and Inte-
grated Technician Security Code Number IT SEC.
3. Use the numeric key pad to enter 5321.
4. Use the up or down arrows to select one of the following, Excita-
tion Monitor EXCMON, Digital Volt Meter Test DVMTST, Return
to Zero Test RTNTO0, System Test SYSTST or Self Test SLFTST.
Select System Test SYSTST.
5. Press the Enter button. The Internal Reference INTREF appears.
6. Use the up or down arrows to select either the Internal Reference
INTREF or the IT Junction Box Reference REFBOX.
7. To read the Internal Weight reading of the controller press the Enter
button with the INTREF displayed.
a. This disconnects the instrument from the sense and signal load
sensor lines and connects the instrument to an internal resis-
tance. The controller stays in this mode until it is determined if
the weight reading with this resistance pulled in is stable and
repeatable (the input section of the controller is functioning cor-
rectly).
b. Press the Enter button. The controller goes to the REFBOX if
the IT junction box is used. If the IT junction box is not used the
display will read NUMLS# or LSALL.

8. To read the internal weight reading of the IT Junction Box press the
Enter button

a. The sense and signal load sensor lines are reconnected in the
controller.
b. Next a switch in the Junction disconnects the IT junction box
from the load sensors and connects a resistance in the junction
box.
c. It stays in this mode until the weight reading with this resistance
pulled in is stable and repeatable (the input section of the con-
troller along with the cable connecting it to the junction box is
functioning correctly).
d. Press the Enter button. The display will read NUMLS# or
LSALL.
e. Number of Load Sensor NUMLS#

• The number after the NUMLS# represents the number of

C2 load points found.

8-36
 Chapter 8 - Troubleshooting

• Press the Enter button to see the list of C2 load sensors

(LS1, LS2, LS3, etc.).
• Use the up or down arrows to select the load sensor that
you want to read.
• Press the Enter button to read the weight reading.

f. The IT Junction Box must be used to display individual load

sensors.Non C2 Load Points with the IT Junction Box

• The Default is 0 for NUMLS0.

• Press the Enter button.

• Use the numeric key pad to enter the number of load sen-
sors.
• Press the Enter button to view the list of Non C2 load sensor
(LS1, LS2, LS3, etc.)
• Use the up or down arrows select the load sensor you want
to read.
• Press the Enter button to view the weight reading.
NOTE: For A&B: The sense and signal load sensor lines are reconnected in the controller.
Next a switch in the Junction box disconnects all but one of the load sensors. If the
weight reading is stable, the first load sensor is disconnected and the next load sensor
is switched in by pressing the Enter button.
g. LSALL (Without an IT Junction Box) Press the Enter button to
view the weight reading for the sum of all the load sensors.
h. Press the Exit button to return the INTREF Menu.
i. Press the Exit button again to return to the Weight Display.

Error Messages and

Definitions

Error Message Definition

- - LO - - A Load cell(s) is wired backwards and load cell/point signal displays a
weight lower than the scale capacity (i.e. negative number)
- - HI - - Load cell/point signal represents a weight higher than scale capacity.
ERREXC A ± 10% comparison error has been detected by the load cell excitation
monitor.
Error Invalid character entry.
Err 1 Invalid grad size. Grad size must be 1, 2, 5, 10, 20, 50, 100, 200, 500.
Err
Err 2 NTEP grad size error. Grad size must be greater than the full scale
divided by the range.
Err 3 Average out of range. Average must be from 1 to 200.
Err 4 Instrument in motion when value entered.

8-37
HI 2151/30WC MANUAL

Error Message Definition

Err 5 Not in Gross mode when trying to enter CAL menu.
Err 6 Invalid zero. Zero must be less than zero tolerance.
Err 7 Invalid grad size. Grad size must be greater than the full scale divided
by the range minus one valid grad size.
Err 8 Unable to enter Calibration Menu without toggling ReCal segment on
S3 or using the proper security code.
Err 9 Invalid zero. When the instrument is in NTEP mode, the zero must be
within the zero tolerance.
Err 10 Invalid motion tolerance. Motion must be greater than 0 and greater
then or equal to Grad Size.
Err 11 Negative gross weight during acquire tare. (NTEP only)
Err 12 All decades after decimal point must be active. (NTEP only)
Err 13 Full scale calibration of zero or negative value not allowed.
Err 14 Scale capacity of zero or at negative value not allowed or indicates
Err 15 Zero tolerance of zero or a negative value not allowed or indicates lin-
ear correlation value entered is not > 0 or < Span value.
Err 16 Tare greater than span. (NTEP only)
Err 17 Acquire tare cannot be used with zero gross weight. (NTEP only)
Err 18 Difference between zero and span is less then 100 counts in the positive
direction or indicates the linear correction point is not 100 counts > 0 or
100 counts < Span point.
Err 19 Occurs when configuring Serial Port 1 and entering a negative address.
Err 20 Option held when a print command was requested. Option hold active
on remote functions TB when print command from serial port
requested. (Serial Port only)
Err 24 Clock malfunction.
Err 25 Invalid total decimal point.
Err 26 Faulty time or date entry.
Err 40 Software Cal sticker value too small.
Err 41 Software Cal reference point weight out of range.
Err 42 Software Cal load cell overloaded.
Err 43 Software Cal range is zero error.
Err 44 Sensitivity out of range.
Err 45 No Software Cal in NBS range.
Err 50 Too many BCD Options.
Err 52 Too many Serial Options.
Err 54 Invalid serial or BCD format entry.
(_ _ _ _ _ _ P or _ _ _ _ _ _)
8-38
 Chapter 8 - Troubleshooting

Error Message Definition

Err 55 Illegal analog weight span. Analog span weight minus analog zero
weight must be larger than 2% of the calibrated span.
Err 60 The number of load points found did not match the number entered.
Err 61 No load points found.
Err 62 Load point capacities or sensitivities do not match.
Err 63 Check Sum Error on 1 or more load points.
Err 64 Too many significant digits, after the decimal point, to be displayed.
Err 65 One or more C2 load cell connections are reversed.
Err 99 Bad command sequence. (Serial Port only)

General Policies With over 70 years of industrial weighing experience and products in
and Information the field, Hardy Process Solutions continues to design, manufacture, install
and support Hardy products worldwide. The following paragraphs
describe Hardy's customer support services and equipment warranty.

System Support Customer support is provided as follows:

1. New system start-up: Ensure that the installation is checked and

correct; instruments are calibrated, and operators trained.
2. Service: Engineers are trained and qualified to provide on-site
installation, calibration, and maintenance.
3. On-site training: A Hardy Support Representative can be scheduled
to train your operations and maintenance personnel. This can be as
simple as basic load cell theory or as complete as troubleshooting
techniques which allow you to service your equipment.

Warranty A warranty problem may be handled by returning the product to the

factory for repair or replacement under warranty.
NOTE: Before returning any product to Hardy Solutions, call the Customer Support
Department listed below for a Return Authorization Number. Have your company
name, address, telephone, equipment model number, S/N, and a brief description of
the problem ready for the customer service representative. In addition, please have
Appendix A completed and ready to FAX to us before calling.

FOR FURTHER
INFORMATION
CONTACT:

Customer Support Manager

Hardy Process Solutions
9440 Carroll Park Drive, Suite 150, San Diego, CA 92121
Telephone: (858) 278-2900
FAX: (858) 278-6700
Web Site: http://www.hardysolutions.com
E-Mail: hardysupport@hardysolutions.com
8-39
HI 2151/30WC MANUAL

Ordering Contact the Hardy Solutions Sales Department to order replacement

Replacement Parts parts and option boards. Have your equipment model number ready, as
well as your completed System Data Survey Sheet (Appendix A: Data
Survey Sheet).

8-40
 Index

Index

Symbols Before Clearing Memory. 6-19

—/Test/Clr 5-2 Bi-Directional Communications 2-5
Bi-directional Communications 7-7
bi-directional communications 1-6
Numerics
Bi-directional serial ports 4-1
14 AWG power line 3-9
Binary Coded Decimal (BCD) 2-8
2/Status/Bar 5-2
Binary Coded Decimal (BCD) Output 1-5
240 VAC 50/60 Hz Input Voltage (-E2) 1-7
Binding on the Load Cell 6-1
3-pin terminal block connector 3-9
Blind Remote Mount HI 2151/30WC-BR 2-4
4 connector pin description 3-10
5 AMP, 250 VAC Slow-Blow 3AG, 3-9
5 volts DC Excitation Voltage 8-31 C
C2 Load Cell Connections (J1) (See Fig. 3-9) 3-13
C2 weighing system 1-2
A
C2® Calibration 1-2
Allen Bradley Remote I/O 1-2
C2® Second Generation Calibration Procedures 6-12
Allen-Bradley Remote I/O Installation and Operation
C2™ Calibration (C2 CAL) 6-11
Manual (P/N 0596-0173) 7-22
Cable Pinouts 3-17
Allen-Bradley Remote I/O Interface (-B8) 2-7
cable runs 3-8
Allen-Bradley Remote I/O Option -B8 5-14, 7-22
Cable Type 7-8
Allen-Bradley RIO Interface Option -B8 3-20
Cabling and Interconnecting 3-8
analog card 4-4
CAL button 4-7
Analog Card Adjustment 4-5
CAL menu 4-7
Analog Output (-B1) 1-5, 2-6
Calibration Configuration without Security Code 4-7
Analog Output Menu Setup Procedures 5-13
Calibration Menu 5-14
Analog Output Option -B1 (See Fig. 3-12) 3-16, 4-4
Calibration Procedures 6-11
Analog Output Setup Procedures (Option) 5-12
Calibration Results form 6-15
analog transmitter 4-4
Calibration Setup Procedures 6-6
Approvals 2-5
Case Dimensions 2-3
Auto Zero Tolerancing Configuration Procedures 4-8
change values 7-2
Auto Zero Tracking 1-4
Checking for Mechanical Problems 6-14
averaged gross 4-8
clean" primary line 3-9
Averages 2-1
Clear Controller Memory 6-19
Clear to Send (CTS) 5-10
B Cockpit Configuration Assistant 2-9
B1 Option Connector Wiring 3-16 Combination Status Indicator/Bar-Graph LEDs 6-4
bar graph parameters 5-6 Command Meaning 7-13
Bar Graph Setup Procedures 5-6 command strings 7-11
Base Graduation Number 6-8 Common Mode Rejection 2-2
base motion number 6-8 Common Mode Voltage Range 2-2
Baud rate selection 5-9 communications ports 1-4
Baud rates 1-4 compact 1-1
BCD Menu Setup Procedures 5-7 complete hardware groups 8-1
BCD option board 5-7 config dip CAL switch 4-7
BCD Option Board Installation -B2, -B5, -B9 3-17 Configuring Lock S3-7 4-10
BCD Print 5-7, 7-20 Configuring Multidrop S3-1 4-9
BCD Quad Termination Board (-B7) 2-7 Configuring Option S3-4 4-9
BCD Quad Termination Card (-B7) 1-5 Configuring Peak Hold Mode 4-8
BCD Single Termination Board (-B6) 2-7 Configuring Serial S3-3 4-9
BCD Single Termination Card (-B6) 1-5 Configuring Set Point S3-5 4-9
BCD sub-menu 7-20 Configuring the Power & Relay Board Dip Switches S2
BCD terminal board 3-20 (See Fig. 4-12) 4-10
BCD Termination Board Installation Procedures (See Conversion Rate 2-1
Fig. 3-14) 3-19 Current 4-5
BCD Terminator Boards - B6, - B7 3-19 cut off frequencies 1-2
HI 2151/30WC MANUAL

D Front Panel Dimensions 2-3

D2 option card 3-11 Front Panel Setup Procedures 4-5
Data Formats 7-10 full analog output 5-12
Data Formats - Binary Representation 7-10 full scale mV/V output 6-15
Data Formats - Weight Data Format 7-10 full weight capacity 6-3
data/status lines 3-20
DDE Installation and Operation Manual, document G
number 0596-0221 3-22 gasket 3-5
Dead Band Limits 7-4 Gross Mode 1-2
Dead Band Sub-Menu 7-6
dead band value 7-4
H
deadband 1-4
Hard Calibration (HD CAL) 6-11 to 6-15
default auto zero tolerance 6-9
Hardy Link LAN 1-4
Digital Volt Meter (D.V.M) 8-34
Hardy Link Local Area Network (LAN) 1-4
Digital Volt Meter (DVM) 1-3
Hardy Link software option 4-9
Digital Voltmeter 2-2
Hexadecimal number 7-17
Dimensions of the enclosure cutout 3-3
HI 215IT Series Junction Boxes 3-22
Dip Switch Locations (See Fig. 4-10) 4-7/8
HI 215T series junction box 8-4
Dip Switch Setting 4-8
Highest gross 4-8
Dip Switches S2 4-9
host computer control 7-7
Disassembling the rear panel and setting jumpers 4-4
Humidity Range 2-2
Disassembly and Reassembly Notes and Cautions 8-1
Display 2-1
Display Increments (Graduations) 2-1 I
DO NOT CUT THE CABLE!!! 6-16 individual set point 1-4
Document Number 0596-0173 3-20 in-flight" compensation value 7-5
Dynamic Data Exchange (DDE) (-B14) 1-6 Input 2-1
Dynamic Data Exchange (DDE) I/O Server -B14 3-22 Input Power Wiring 3-9
Install the Front Panel. 3-5
Installation Details 3-23
E
Installation of the Instrument Enclosure 3-6
E2 3-9
Installation of the Secure Memory Module 3-24
Earth Ground Cable Shield 7-8
Installing the HI 2151/30 Remote Mount Model 3-5
Echo 5-10
Installing the HI 2151/30 Wall Mount Model 3-7
Electrical Check Procedures 6-2
Installing the HI 2151/30WC in a Panel 3-3
Electrical Installation 3-8
Installing the Blind Remote Model 3-7
Electrostatic Discharge (ESD) 3-3
INTEGRATED TECHNICIAN (IT®) 6-18
End Calibration 6-14
INTEGRATED TECHNICIAN™ (IT®) 1-1
Enter 5-4
IT ® 1-2
Entering Dead Band Tolerance Procedures 7-6
IT Junction Box 8-31
Entering Preact Values Procedures 7-6
IT junction box 1-3
Entering Set Point Procedures 7-6
IT® Junction Box HI 215IT-FG Series 2-5
Entering Set Points 7-5
IT® Junction Box HI 215IT-SS or PS Series 2-4
Environmental Requirements 2-2
ERR 8 4-7
Error Messages and Definitions 8-37 J
Excitation Monitor 1-3, 2-2 J3 Serial Port Wiring 3-11
Excitation Monitor (Current) Setup Menu 8-34 jumper error 5-6
Excitation Voltage 2-1 Jumper Location. (See Fig. 4-7) 4-6
External Setpoint Relays Card (-D2) 1-6 Jumper Settings (See Fig. 4-8) 4-7
External Setpoint Relays Card (-D3) 1-7 jumpers and dip switches 4-1

F K
Firmware 3-10 Key Pad 2-1
Formats the serial data output 5-9 Keypad Functions (See Fig. 5-1) 5-1
Fourteen Segment Display 6-4
Frequency 2-2
 Index

L original voltage reading 1-3

Linear Correction 6-14 Output Device Options 1-5
live load 6-13 OUTPUT DISABLE 7-20
Load Cell Count 6-12 Output Disable 7-20
Load cell/point 3-12 OUTPUT OPTION BOARD INSTALLATION PROCE-
Load Cell/Point Connections (J1) 3-12 DURES 3-15
Load Cell/Sensor/Point 8-30 Output Setpoint Relay Wiring 3-10
Load Check 6-6 Overview of Typical Load Cell System 8-30
Logic Controllers 1-5
logical choice 7-2 P
Panel Cutout Dimensions 2-3
M Panel Cutout Specifications 3-3
material impacting 6-10 Panel Mount (Model # HI 2151/30WC) 2-2
Maximum Zero Tolerance 2-1 Panel Mount Instrument 1-7
Mechanical Check Procedures 6-1 Parallel BCD Board Connector to DB Connector 3-17
Mechanical Installation 3-2 Parallel BCD Board Print Configuration Procedures -
mechanical noise 1-2 B2, -B5, -B9 4-6
Miscellaneous Options 1-7 Parallel BCD Communication 7-19
Mode 5-1 Parity selection 5-9
mode key 5-1 Peak Hold 1-2, 7-3
Model Code Breakdown 1-7 Peak Hold (-C1) 1-6, 2-8
MONITOR subcommand 7-17 Peak Hold Mode 7-1, 7-21
Motion Tolerance 6-8 Perform the Hard Calibration Self Test 6-15
Multidrop function 4-9 Performing the Self Test 6-17
multipurpose 1-1 phillips screw driver 3-5
Physical Characteristics 2-2
Portable Display and Keypad (-E4) 1-7
N
Portable Display HI 2151/30XX-E4 (use with HI 2151/
National Institute of Standards and Technology (NIST)
30WC-BR) 2-4
1-7 positive dead band 7-5
Negative Pulse 4-7
Positive Pulse 4-7
NEMA 4 or 4X conduit fittings 3-7
Power 2-2
NEMA Ratings 2-4
preact 1-4
Net 1-2
Preact Limits (See Fig. 7-3) 7-5
NIST/NTEP Certification Mode Kit (-E3 except for -F4
preact value 7-5
wall mount) 1-7
Pre-Calibration Procedures 6-1
No Keypad Operation 8-31
Print 5-2
Non C2 Load Cell Connections (J1) 3-14
Procedures to Restore Calibration Parameters 6-19
Non-Linearity 2-1
Process Weighing Function Buttons 7-1
ntrinsic Barrier Assembly (-F1, -F3 thru -F7) 1-7
Profibus I/O Interface (-B12) 2-8
numeric keypad 7-2
Profibus Installation and Operation Manual (Prt. # 0596-
numeric keys 6-16
0211) 7-22
Profibus Interface Card Option Wiring Diagram 3-24
O PROFIBUS Interface Option (-B12) 1-6
Operating Procedures 7-19 Profibus Interface Option -B12 3-21, 7-22
Operating Temperature Range 2-2 Programmable Logic Controller 4-5
Option Board 3-15
Option Boards 7-3
Q
option connector pins 3-16
Quick C2® Calibration Procedures 6-18
Option Menu 7-19
Option Menus and Option Parameters 7-3
Optional Equipment 2-6 R
Optional Modes 7-1 Rate of Change (ROC) 7-20
Optional Relays or TTL Level Outputs 3-10 Rate of Change (ROC) (-C2) 2-8
Options button 5-6 Rate-of-Change (ROC) 1-2
Options Cabling and Interconnect 3-16 Rate-of-Change (ROC) (-C2) 1-6
Ordering Replacement Parts 8-40 Rate-Of-Change Mode 7-2
HI 2151/30WC MANUAL

readings per average 6-10 Signal Grounds 7-8

Rear panel input 1-4 Six External Solid State, Set Point Relays (-D2 & -D3)
Reassembling Rear Panel 4-5 2-9
re-calibrated periodically 6-1 Six TTL Level Outputs (-D1) 2-9
Recommended Installation Procedures 3-8 Six-wire, shielded load cell/point cable 3-13
Register 7-20 sliding average 6-10
Remote Functions 1-4 SMM 1-3
Remote Functions Non-operational 8-31 socket 3-16
Remote Functions Wiring 3-12 Soft Calibration (S CAL) 6-11
Remote I/O (RIO) Interface to the Allen-Bradley Net- Soft Calibration Procedures for Single Load Cell/Point
work (-B8) 1-5 Systems 6-15
Remote Mount Model HI 2151/30WC-RM 2-3 Soft Calibration Self Test Process 6-17
Report any damage 3-1 solenoid 8-32
Request to Send (RTS) lines 5-10 special test equipment 8-30
Resolution 2-1, 4-10 standard RS-232C/422/485 serial port 7-9
Return to Zero Test 1-3, 8-35 Standard RS-232C/RS422/485 Configuration 4-1
ribbon cables 3-19 Standard Setpoint Relays 2-1
ROC data 7-20 Standard SPDT (Form C) Relays 3-10
ROC LED 5-13 standoffs 3-23
Route wiring types 3-8 Status/Bar button 6-5
RS 232 1-4 Stop bit selection 5-9
RS 422 1-4 Storage Temperature Range 2-2
RS 422/485 ports 4-3 strain gauge based force transducer 8-30
RS 485 1-4 switch eight of S3 1-4
RS-232C 7-7 System Configuration 4-1
RS-232C, RS 422/485 Bi-directional Serial Port 5-5 System Integrity Check and Fault Determination 8-25
RS-422/485 7-7 System Support 8-39
RS-422/485 Configuration Wiring 7-8
RS-422/485 Electrical Specifications 7-9 T
RS-422/485 Wiring and Electrical Specifications 7-8 Tare 5-1
Tare button 5-1
S Tare Value 5-1
Secure Memory Module (SMM) 1-3 target weight or level 7-4
Selecting the Hard Calibration Sub-Menu 6-13 Temperature Coefficient 2-2
Selecting the Soft Calibration Sub-Menu 6-16 The Calibration Menu 6-6
Self-Test 8-25 The Full Scale Count Sub-Menu 6-20
self-test program 8-25 The Return (RETURN) Display 6-14
sequential tests 8-25 Three General Rules for Setpoints 7-5
Serial Commands 7-11 toggle switch (#2) 4-8
Serial Commands - Data Transmission Format 7-11 Total (-C6) 7-2
Serial Commands, Command Set 7-12 Total Option 7-21
serial communication parameters 7-11 TOTAL Setup Procedures 5-14
Serial Communications 2-5, 7-7 Totalized 1-2
Serial Connector 7-8 Totalizer (-C3) 2-9
Serial Port 1-4 Totalizer Mode 7-21
Serial port configuration 5-9 Transmission speed 7-7
Serial Port Menu Setup Procedure (See Chapter 4 for Trouble Shooting Using Integrated Technician. 8-2
Configuration Procedures) 5-9 TTL level outputs 3-10
Serial Procedures 5-10 TTL(Transistor - Transistor Logic) Level Output (-D1) 1-
Serial Protocol - Multidrop Mode 7-9 6
Set Point Limits 7-4 two main operating menus - Set Point and Option 7-2
Set Point Options 1-6
Set Point Relay Option Board Installation -D2 3-22 U
Set Point S3-6 4-9 Unpacking 3-1
Set PointRelays 1-4 user-selectable 7-7
Set Points 7-4 Using Solid State Relays with Light Loads (Optional Set
Set Up for Profibus Interface Card Option -B12 5-14
 Index

Relays) 8-32
Using the Return (RETURN) Function 6-17
Using the Return button 6-12

V
valid 7-6
value is accepted 5-4
value is rejected 5-4
vessel 6-6
Voltage 2-2, 4-5
voltage reading 1-3

W
Wall Mount Model HI 2151/30WC-WS 2-3
Wall Mount Version (-WS) 3-10
Warranty 8-39
WAVERSAVER® 1-1, 1-2, 2-1
WAVERSAVER® (WVRSVR) 6-11
Weighing System Test 8-36
Weighing System Tests 1-3
weight differential 6-9
weight limit 6-9
When multiple load cells are used, 6-16
Word length selection 5-9

X
Xmit 7-13

Z
Zero 5-1
ZERO button 7-1
Zero Key 5-1
zero reference point 6-3
Zero Sub-Menu 6-14
Zero Tolerance amount 6-9
HI 2151/30WC MANUAL
 Appendix A - System Data Survey Sheet

SYSTEM DATA SURVEY SHEET

TO: Hardy Process Solutions FROM:___________________________________

ATTN: Customer Support COMPANY:_______________________________

FAX NO: 858-278-6700 DATE:____________________________________

Make a copy of this page and store it in a safe place. This information helps us assist you if, for any reason
you need to consult HardyProcess Solutions

DATE OF INSTALLATION:_____________________________________________________

INSTRUMENT MODEL NUMBER:_______________________________________________

INSTRUMENT SERIAL NUMBER:_______________________________________________

(The serial number is located on the back panel of the instrument)

CORNER FREQUENCY SELECTED:____________________________________________

LOAD CELLS:_______________________________________________________________

Model #:____________________________________________________________________

Rated Capacity:______________________________________________________________

Number of Load Cells:_________________________________________________________

mv/V Rating:________________________________________________________________

Type of Vessel/Hopper:_______________________________________________________

Deadload or weight of vessel:__________________________________________________

RESULTS OF SELF-TEST: Press the -/Test/Clr button on the keypad while in the operating mode, and record the
results on the following page. Use the down arrow to pause the display, and the up arrow to resume the self-test.
HI 2151/30WC MANUAL
 Appendix B - Glossary ot Terms

GLOSSARY OF TERMS
Accuracy Closeness of a reading to the actual value of the quantity being measured.
ALARM - Indication of a tolerance deviation.

Analog Shield Can A metal enclosure placed over the analog section of the electronics to prevent
radio frequency interference.

Analog Transmitter An option card which outputs an analog representation of net, gross, total
weight or rate of change data.

Appurtenance Any added equipment other than the weigh vessel, platform scale or feeder.

Baud Rate Baud rates are used as a measure of how fast serial data is transmitted, (BIT/
SEC).

BCD Binary Coded Decimal - a type of positional value code in which each decimal
digit is binary coded into 4-bit "words".

Bi-Directional A capability used to transmit data in either direction at the same time, for
example: to or from the instrument.

Clear Key A key used to clear data or formats entered into a menu.

CTS Clear to send an RS-232C level signaling a readiness to accept data.

Dead Band A value used to prevent relay chatter once the setpoint is reached.

Dead Load Weight of hopper assembly or platform assembly sitting on top of load cells.

Decimal Point Position Menu item used to set the decimal point position for all display readouts.

Dip-Switch A switch installed in a circuit card with several individual switches built in.
Used to set different options in a system.

Display A device used to show information from the instrument.

Engineering Units Pounds or Kilograms

Electrostatic Discharge (ESD) Electrostatic Discharge is an electric charge (static electricity) which occurs
when an electrically charged object, such as a person, touches the HI 2151/
30WC. To avoid damage to personnel and to the unit, a grounded static con-
trol wrist strap should always be worn when opening and/or servicing the HI
2151/30WC.

Enter Key This key is used to accept user input into the memory.

EPROM Electrically programmable read-only memory.

Error A message that indicates an unacceptable input has been entered.

Even A parity configuration.

Excitation D.C. voltage supplied to the load cell for power.

Full-Scale Full scale input as defined by instrument and load cell parameters. Example:
3MV/V load cell @ 10 volts = 30mV full scale.

Graduation Size Minimum increment displayed by the instrument.

HI 2151/30WC MANUAL

Gross Weight An overall weight exclusive of tare deductions. Weight of material plus con-
tainer.

Input Average The number of readings averaged into a displayed value.

Keypad Lockout A selectable switch used to prevent input from the keyboard.

Kilograms A unit of mass in the metric system. Equal to 1000 grams or 2.2046 pounds.
"Gr" represents kilograms on the display.

LED Light Emitting Diode. These are used in the front panel displays and indica-
tors.

Load Cell A device which produces an output signal proportional to the applied weight
or force.

Menu A set of prompts used to configure the instrument.

Menu Driven Operational prompts supplied in common language statements via the system
display to guide an operator through a procedure.

Microprocessor A semiconductor device that performs control, input/output, arithmetic, and

logical operations by executing instructions obtained from memory sources.

Midpoint Linearity Correction Allows operator to "BEND" the response of an instrument to match a non-lin-
ear input.

Motion The amount of allowable deviation between consecutive readings before a

weighment is accepted as being complete.

NEMA 4 An enclosure that is watertight, dust-tight, and usable both indoors and out-
doors. Will protect the enclosed equipment against splashing water, seepage
of water, falling or hose-directed water, and severe external condensation.

NEMA 4X An enclosure that is watertight, dust-tight, and usable both indoors and out-
doors. Will protect the enclosed equipment against splashing water, seepage
of water, falling or hose-directed water, and severe external condensation.
Corrosion Resistant.

Net Weight Gross Weight minus the Tare value.

Next Key A key used to step through menus or increase the value of a digit.

Non-Linearity A deviation of an instrument response from a straight line.

Number Of Readings Per The number of weight readings used to compute the displayed weight.
Average

Odd A parity configuration.

Option A device not supplied with a standard instrument.

Option Slot A location on the main board used to install an option card.

Parity A binary digit error correction appended to an array of bits to make the sum of
all the bits always odd or always even.

Pounds A unit of mass in the Avoirdupois System. Equal to 16 ounces or 0.4536 kilo-
grams.
 Appendix B - Glossary ot Terms

Preact The number of units above or below the set point value of which the relay will
trip. Use as an "in flight" compensation value.

Previous Key A key used to step back through menus.

Prompts Instructions or options presented, in a menu, by the instrument.

RAM Random-Access-Memory. Read/write memory out of which the microproces-

sor can both write and read data.

Rate of Change A measure of the rate at which weight is changing. For example, if 100
pounds were dispensed in 1 minute the rate of change would be 100 lb/
minute.

Relay Sense Selection Optional procedure which reverses the relay sense from normally energized
to normally de-energized, or back again.

Remote Function A function in the instrument that can be accessed away from the instrument.

Repeatability The maximum difference between readings for repeated readings under iden-
tical conditions.

ROM Read-Only-Memory. This permanent, non-volatile memory gives the proces-

sor instructions and cannot be altered.

RTS Request to send an RS-232C level, signaling a readiness to send.

RXD Received data at a serial port. Accepts RS-232C data signals.

Scale Capacity The maximum amount of weight the scale is capable of supporting, (Live load
plus deadload).

Secure Memory Module The Secure Memory Module stores and protects vital information from corrup-
(SMM) tion, including calibration, configuration of setpoints, RS-232C Serial Port,
Optional Serial, BCD, Bar-graph, and Rate of Change. Also allows the trans-
ference of data from one unit to another, with no re-calibration or re-configura-
tion necessary.

Set Point Ordered weight of a particular ingredient. Weight reading at which a relay will
be actuated.

Span The total amount of test weights used (placed on the scale) when performing
a "Hard Calibration".

Tag Another name for Secure Memory Module.

Tare Artificial zeroing of the weight hopper so that a net weight can be displayed.
Also, the action of adjusting out the known weight of the container from the
total indicated weight, so that the indicator reads net weight directly.

Temperature Coefficient The change in indication due solely to a change in temperature from a refer-
ence temperature. Expressed as a percentage of span value for a specified
temperature change.

Time Base Time in seconds between values subtracted to determine rate of change.

Transmitter Span Value the transmitter puts out with the maximum weight on the load cell.

Transmitter Zero Value the transmitter puts out with minimum weight on the load cell.
HI 2151/30WC MANUAL

TTL Transistor-transistor Logic

TXD Transmit Data

Update Rate Number of times per second a new weight reading is taken.

Zero Weight reading once the dead load has been offset.

Zero Calibration Offset of the value of the dead load of the weight hopper.

Zero Tolerance The number of graduations from zero that will be accepted as zero by the
instrument.

Zero Track Logic command used to adjust the instrument automatically from small vari-
ances in zero readings.
 Appendix C - Self Test Display

SELF TEST DISPLAY

SELF-TEST DISPLAYYOUR RESULTS

EPROM#_________________________

VER_________________________

CALDAT:

CALTYP_________________________

UNITS_________________________

WSVR_________________________

GRAD_________________________

SPAN_________________________

ZR CNT_________________________

FS CNT_________________________

0 TOL_________________________

A0 TOL_________________________

MOTION_________________________

AVRAGE_________________________

LINCOR_________________________

DIP 1____________________________________

DIP 2____________________________________

TAG 1____________________________________

TAG 2____________________________________
HI 2151/30WC MANUAL

OPTIONS: Press the 7/Option key to enter the opti0ns menu and record the results. (The order of parameters may vary from
this list, depending on which options were installed.)
OPTIONS
ROC

UNITS___________________________________________

TBASE___________________________________________

BARGR

BAR - LO_________________________________________

BAR - HI__________________________________________

BCD

FORMAT_____ _____ _____ _____ _____ _____

AN OUT 1 AN OUT 2

AN LO_____________________ ___________________

AN HI______________________ ___________________

SERIAL PORT

SERCON [ ] Print
[ ] bi-dir

BAUD_______________________

PARITY [ ] odd
[ ] even
[ ] none

STOPS [ ] 1 bit
[ ] 2 bits

LENGTH [ ] 7 bits
[ ] 8 bits

FORMAT__ __ __ __ __ __

CONTRL [ ] softre
[ ] hardre

ECHO [ ] On
[ ] off

ADDRES _______________________ ____________________

RIO

RATE________________________________________________

RAC NO ______________________________________________

OTR NO ______________________________________________

L-OTR _______________________________________________
 Appendix C - Self Test Display

SETPOINT MENU: Press the 6/Set Pt. key to enter the Setpoint menu and record settings.

SETPOINT MENU

SEtPnt/rLY 1 2 3 4 5 6 7 8
MODE

SPNT -

DBND -
PRE -

PRINTER INFORMATION

Make and Model #:________________________________________________________________________

Baud Rate:_______________________________________________________________________________

Parity:__________________________________________________________________________________

Stop Bits:_______________________________________________________________________________

Length:_________________________________________________________________________________

Format:_________________________________________________________________________________

MISCELLANEOUS INFORMATION

Format:_________________________________________________________________________________

Control:_________________________________________________________________________________

* Address:_______________________________________________________________________________

* Configured with Hardy-Link______________________________________________________________

HI 2151/30WC MANUAL
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