Title page

Digital Energy
Multilin

MM200
Motor Management System
Low voltage motor protection and control

Instruction manual
MM200 revision: 1.2x
Manual P/N: 1601-9034-A6
GE publication code: GEK-113400E E83849
Copyright © 2010 GE Multilin

LISTED
IND.CONT. EQ.
52TL
GE Multilin
215 Anderson Avenue, Markham, Ontario T
GIS ERE
RE

Canada L6E 1B3 ISO9001:2000

EM I
Tel: (905) 294-6222 Fax: (905) 201-2098
G

U LT I L

Internet: http://www.GEmultilin.com
GE Multilin's Quality
Management System is

*1601-9034-A6* registered to ISO9001:2000

QMI # 005094
© 2010 GE Multilin Incorporated. All rights reserved.
GE Multilin MM200 Motor Management System instruction manual for revision 1.2x.
MM200 Motor Management System, EnerVista, EnerVista Launchpad, and EnerVista
MM200 Setup are registered trademarks of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-9034-A6 (July 2010)
TABLE OF CONTENTS

Table of Contents
1: INTRODUCTION Overview .................................................................................................................................................1-1
Cautions and warnings ............................................................................................................................ 1-1
Description of the MM200 Motor Management system ........................................................... 1-2
MM200 order codes ................................................................................................................................... 1-3
Example of an MM200 order code ...................................................................................................... 1-3
Specifications........................................................................................................................................1-4
Protection specifications ......................................................................................................................... 1-4
User interface specifications ................................................................................................................. 1-5
Control specifications................................................................................................................................ 1-5
Inputs specifications .................................................................................................................................. 1-6
Outputs specifications .............................................................................................................................. 1-6
Power supply specifications................................................................................................................... 1-7
Communications specifications ........................................................................................................... 1-7
Testing and certification .......................................................................................................................... 1-7
Physical specifications.............................................................................................................................. 1-8
Environmental specifications ................................................................................................................ 1-9

2: INSTALLATION Mechanical installation ....................................................................................................................2-1

Dimensions..................................................................................................................................................... 2-1
Product identification ................................................................................................................................ 2-2
Mounting ......................................................................................................................................................... 2-3
Electrical installation .........................................................................................................................2-4
Thermistor connections ........................................................................................................................... 2-8
RS485 connections ..................................................................................................................................... 2-9
Protection......................................................................................................................................................2-10
Phase current inputs ............................................................................................................................... 2-10
Two CT configuration.............................................................................................................................. 2-11
Input/output.................................................................................................................................................2-13
Type IO_C connections........................................................................................................................... 2-13
Dielectric strength testing.....................................................................................................................2-14
Starter types....................................................................................................................................... 2-16
Full-voltage non-reversing starter ....................................................................................................2-16
Full-voltage reversing starter ..............................................................................................................2-18
Two-speed starter.....................................................................................................................................2-20

3: CONTROL PANEL Basic control panel.............................................................................................................................3-1

MM200 graphical display page hierarchy...............................................................................3-3
EnerVista MM200 Setup Software...............................................................................................3-4
Software requirements............................................................................................................................. 3-4
Installing the EnerVista MM200 Setup software........................................................................... 3-4
Uploading the MM200 Firmware ......................................................................................................... 3-6

4: SETPOINTS Understanding setpoints.................................................................................................................4-1

Setting text abbreviations ....................................................................................................................... 4-1
Configuration setpoints....................................................................................................................4-3
Motor setpoints ............................................................................................................................................ 4-3
Common motor setpoints........................................................................................................................4-3

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL toc–i

 TABLE OF CONTENTS

Full-voltage non-reversing starter.......................................................................................................4-4

Full-voltage reversing starter.................................................................................................................4-5
Two-speed starter .......................................................................................................................................4-5
Current transformers .................................................................................................................................4-7
Inputs.................................................................................................................................................................4-7
Outputs .............................................................................................................................................................4-9
Communications setpoints .....................................................................................................................4-9
System............................................................................................................................................................ 4-10
System security.......................................................................................................................................... 4-10
System trouble ........................................................................................................................................... 4-10
LED indicators............................................................................................................................................. 4-10
Counters Settings...................................................................................................................................... 4-12
Protection elements ....................................................................................................................... 4-13
Thermal protection................................................................................................................................... 4-13
Hot/cold biasing ........................................................................................................................................ 4-13
Overload curve........................................................................................................................................... 4-14
Cooling rate ................................................................................................................................................. 4-16
Thermal protection reset....................................................................................................................... 4-17
Thermal protection setpoints.............................................................................................................. 4-17
Mechanical protection............................................................................................................................ 4-18
Mechanical jam ......................................................................................................................................... 4-18
Undercurrent protection ....................................................................................................................... 4-19
Acceleration protection ......................................................................................................................... 4-19
Electrical protection.................................................................................................................................4-20
Current unbalance protection ............................................................................................................ 4-20
Ground fault protection ......................................................................................................................... 4-21
Load increase alarm................................................................................................................................ 4-22
Control elements.............................................................................................................................. 4-23
Auto/manual control............................................................................................................................... 4-23
Stop/start control element ................................................................................................................... 4-25
Power failure restart................................................................................................................................ 4-26

5: DIAGNOSTICS Digital counters ................................................................................................................................... 5-1

Learned data ........................................................................................................................................ 5-2

6: Communications interfaces .......................................................................................................... 6-1

COMMUNICATIONS

APPENDIX Change notes .......................................................................................................................................A-3

Revision history............................................................................................................................................ A-3

toc–ii MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 Digital Energy
Multilin

MM200 Motor Management System

Chapter 1: Introduction

Introduction

Overview
The MM200 is a motor protection and control system designed specifically for low-voltage
motor applications. The MM200 provides the following key benefits.
• Protection, control, and communication options to suit low-voltage motor
applications.
• Small footprint designed specifically for IEC and NEMA MCC applications.
• DIN rail Mounting.
• Multiple communication protocols allows simple integration into monitoring and
control systems.
• Optional basic control panel interface provides local control and access to system
information.

Cautions and warnings

Before attempting to install or use this device, it is imperative that all caution and danger
indicators in this manual are reviewed to help prevent personal injury, equipment damage,
or downtime. The following icons are used to indicate notes, cautions, and dangers.
Figure 1: Note icons used in the documentation

NOTE CAUTION DANGER

The standard note icon emphasizes a specific point or indicates minor problems that may
occur if instructions are not properly followed.
The caution icon indicates that possible damage to equipment or data may occur if
instructions are not properly followed.
The danger icon provides users with a warning about the possibility of serious or fatal
injury to themselves or others.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–1

OVERVIEW CHAPTER 1: INTRODUCTION

Description of the MM200 Motor Management system

The MM200 can be equipped with a basic control panel: includes pushbuttons for Stop,
Start A, Start B, Auto, Manual, and Reset, and 12 LED status indicators.
The MM200 includes the following input/output capabilities:
• 2 Form A relays, 1 Form C relay
• 7 contact inputs LO power supply; 6 contact inputs HI power supply.
The thermal model uses a standard overload curve with multiplier, and incorporates hot/
cold compensation and exponential cooling.
A single-line diagram for the MM200 is shown below.
Figure 2: Single line diagram

52

BUS

Power Fuse

LO: 7 inputs and 3 outputs

HI: 6 inputs and 3 outputs
LO: 24 V DC
HI: 84 to 250 V DC / 60 to 300 V AC

METERING
Contactor
A

51R 49 37 46
Phase CT 3

50G
Ground CT 1

RS485 - Modbus RTU

Profibus/DeviceNet
Temperature

Thermistor

LOAD MM200
MOTOR MOTOR MANAGEMENT SYSTEM

888739A2.CDR

Table 1: MM200 protection functions

ANSI device Description
37 Undercurrent
46 Current unbalance
49 Thermal overload
50G Ground instantaneous overcurrent
51R Locked/stalled rotor, mechanical jam

1–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 1: INTRODUCTION OVERVIEW

Figure 3: MM200 feature overview

Control Panel
• Control keys
• LED Indication
LED indication
• Motor status
• Alarm indication
• System status
• Communication status
• Additional user LEDs

Front panel control

• Integrated device control
• Dedicated control keys

888723A1.CDR

MM200 order codes

The information to specify an MM200 relay is provided in the following order code figure.
Figure 4: MM200 order codes

Example of an MM200 order code

MM200-BXL1S: MM200 with basic control panel, 24 V DC power supply, RS485 Modbus RTU
communications, three-phase current, thermal overload, undercurrent, Devicenet
communications, protection option.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–3

SPECIFICATIONS CHAPTER 1: INTRODUCTION

Specifications
Specifications are subject to change without notice.
NOTE:

NOTE

Protection specifications
ACCELERATION TIMER
Pickup:...................................................................... Iav > Icutoff
Dropout: .................................................................. Iav < Ipu or timer expired
Time delay: ............................................................ 0.5 to 250.0 seconds in steps of 0.1
Timing accuracy: ................................................ ±500 ms or 1.5% of total time
Elements:................................................................ trip and alarm
CURRENT UNBALANCE
Range:...................................................................... 4 to 40% in steps of 1%
Accuracy:................................................................ ±2%
Time delay: ............................................................ 1 to 60 seconds in steps of 1 s
Timing accuracy: ................................................ ±500 ms
Elements:................................................................ trip and alarm

CALCULATION METHOD
If IAV ≥ IFLA: ( [IM - IAV] /IAV ) x 100%
If IAV ≤ IFLA: ( [IM - IAV] /IFLA ) x 100%
Where:
IAV = average phase current
IM = current in a phase with maximum deviation from IAV
IFLA = MOTOR FULL LOAD AMPS setpoint

GROUND FAULT (CBCT)

Pickup level:........................................................... 0.5 to 15.0 A in steps of 0.1 A
Trip time delay on start:................................... 0 to 10 s in steps of 0.1 s
Trip time delay on run: ..................................... 0 to 5 s in steps of 0.1 s
Alarm time delay on start/run:..................... 0 to 60 s in steps of 1 s
Timing accuracy: ................................................ ±100 ms or ±0.5% of total time
Elements:................................................................ trip and alarm
LOAD INCREASE
Pickup level:........................................................... 50 to 150% of FLA in steps of 1%
Timing accuracy: ................................................ ±500 ms
Elements:................................................................ Alarm
MECHANICAL JAM
Pickup level:........................................................... 1.01 to 4.50 × FLA in steps of 0.01
Time delay: ............................................................ 0.1 to 30.0 seconds in steps of 0.1
Timing accuracy: ................................................ ±500 ms
Elements:................................................................ trip

1–4 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 1: INTRODUCTION SPECIFICATIONS

THERMAL MODEL
Standard curve time multiplier: ...................1 to 15 in steps of 1
Thermal overload pickup: ...............................1.01 to 1.25 in steps of 0.01 x FLA
Motor full load current (FLA): .........................0.5 to 1000 A in steps of 0.1
Motor rated voltage:..........................................100 to 690 V AC
Curve biasing:.......................................................hot/cold ratio
exponential running and stopped cooling rates
Update rate: ..........................................................3 cycles
Hot/cold safe stall ratio: ..................................1 to 100% in steps of 1%
Timing accuracy: ................................................±200 ms or ±2% of total time (based on measured value)
Elements: ................................................................trip
THERMISTOR
Sensor types:.........................................................PTC (RHOT = 100 to 30 kohms);
NTC (RHOT = 100 to 30 kohms)
Timing accuracy: ................................................±500 ms
Elements: ................................................................Trip and alarm
UNDERCURRENT
Pickup level: ...........................................................1 to 100% of FLA in steps of 1
Time delay:.............................................................1 to 60 seconds in steps of 1
Timing accuracy: ................................................±500 ms
Elements: ................................................................Trip and alarm
POWER FAILURE RESTART
Type:..........................................................................Digital input
Power failure time: .............................................0 to 30 seconds in steps of 1
Restart time delay: .............................................0 to 300 seconds in steps of 1
UV detection time accuracy:.........................±100 ms or ±5%

User interface specifications

HAND HELD DISPLAY (HHD)
Size: ...........................................................................width 153mm, height 102mm, depth 35mm
LCD: ...........................................................................3.5-inch color, 320 by 240 pixels
LED Indicators: .....................................................10 LEDs
Pushbuttons: .........................................................Start A, Start B, Stop, plus 11 LCD screen display control keys
Ports:.........................................................................USB 2.0 port for laptop computer connection
Cable - GCP to Base Unit:................................Shielded RJ45; Maximum length 6' (1.83m)
BASIC CONTROL PANEL
Size: ...........................................................................BCP: width 75mm, height 75mm, depth 31mm
LED Indicators: .....................................................12 LEDs
Pushbuttons: .........................................................Start A, Start B, Stop, Reset, Auto, Manual
Cable - BCP to Base Unit:................................Shielded RJ45; Maximum length 6' (1.83m)

Control specifications
POWER FAILURE RESTART
Type:..........................................................................Digital input
Power failure time: .............................................0 to 30 seconds in steps of 1
Restart time delay: .............................................0 to 300 seconds in steps of 1
UV detection time accuracy:.........................±100 ms or ±5%

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–5

SPECIFICATIONS CHAPTER 1: INTRODUCTION

Inputs specifications
DIGITAL INPUTS (LO)
Fixed pickup: ......................................................... 24 V DC
Continuous current draw:............................... 4 mA
Type: ......................................................................... opto-isolated inputs
External switch: ................................................... wet contact
Maximum input voltage: ................................. 36 V DC
DIGITAL INPUTS (HI)
Nominal voltage:................................................. 120 V AC to 240 V AC
Recognition time:................................................ 2 cycles
Continuous current draw:............................... 4 mA @120 V AC; 8 mA @ 240 V AC
Type: ......................................................................... opto-isolated inputs
External switch: ................................................... wet contact
Voltage range:...................................................... 65 V AC to 300 V AC
GROUND CURRENT INPUT (50:0.025)
CT primary: ............................................................ 0.5 to 15.0 A
Nominal frequency: ........................................... 50 or 60 Hz
Accuracy (CBCT): ................................................. ±0.1 A (0.5 to 3.99 A)
±0.2 A (4.0 A to 15 A)
PHASE CURRENT INPUTS
Range:...................................................................... 0.07 to 40 A (8 × CT), direct connection up to 5 A FLA
Input type:.............................................................. combined 1 A / 5 A
Frequency: ............................................................. 50 or 60 Hz
Accuracy:................................................................ ExtCT: ±2% of reading or ±1% of 8× CTPrimary, whichever is
greater
Direct: 2% of reading or ±0.1 A, whichever is greater
Withstand (at 5A nominal):............................. 0.2 s at 100 × rated current
1.0 s at 50 × rated current
2.0 s at 40 × rated current
continuous at 3 × rated current
maximum 100 A peak
Short Circuit: ......................................................... 5000 A @ 240 V AC direct connect
100000 A @ 600 VAC with accessory external CT
THERMISTOR INPUTS
Sensor type:........................................................... Positive temperature coefficient PTC (RHOT = 100 to
30000 ohms), negative temperature coefficient NTC (RHOT =
100 to 30000 ohms)
Accuracy:................................................................ ±6% of reading or ±100 ohms, whichever is greater

Outputs specifications
OUTPUT RELAYS
Configuration: ...................................................... electromechanical 2 x Form-A and 1 x Form-C
Contact material:................................................ silver-alloy
Operate time:........................................................ 10 ms
Minimum contact load:.................................... 10 mA at 5 V DC
Maximum switching rate:............................... 300 operations per minute (no load), 30 operations per
minute (load)
Mechanical life:.................................................... 10 000 000 operations
Continuous current:........................................... 5 A at 60°C
Make and carry for 0.2s:.................................. 30 A per ANSI C37.90 (not UL rated)

1–6 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 1: INTRODUCTION SPECIFICATIONS

OUTPUT RELAY BREAK CAPACITY (FORM-A RELAY)

AC resistive, 120 V AC:.......................................5 A
AC resistive, 250 V AC:.......................................5 A
AC inductive, PF = 0.4:.......................................240 VA pilot duty
DC resistive, 30 V DC: ........................................5 A
OUTPUT RELAY BREAK CAPACITY (FORM-C RELAY)
AC resistive, 120 V AC:.......................................5 A normally-open, 5 A normally-closed
AC resistive, 240 V AC:.......................................5 A normally-open, 5 A normally-closed
AC inductive, PF = 0.4:.......................................240 VA pilot duty
DC resistive, 30 V DC: ........................................5 A

Power supply specifications

POWER SUPPLY (LO RANGE)
Nominal:..................................................................24 V DC
Range: ......................................................................18 to 36 V DC
Power Consumption:.........................................10 W typical
POWER SUPPLY (HI RANGE)
Nominal:..................................................................120 to 240 V AC; 125 to 250 V DC
Range: ......................................................................60 to 300 V AC (50 and 60 Hz); 84 to 250 V DC
Power consumption: .........................................10 W typical
Voltage withstand: .............................................2 × highest nominal voltage for 10 ms

Communications specifications
DEVICENET (COPPER)
Modes:......................................................................slave (125, 250, and 500 kbps)
Connector:..............................................................5-pin terminal
PROFIBUS (COPPER)
Modes:......................................................................DP V0 slave, up to 1.5 Mbps
Connector:..............................................................5-pin terminal
RS485 PORT
Port: ...........................................................................opto-isolated
Baud rates:.............................................................up to 115 kbps
Protocol: ..................................................................Modbus RTU, half-duplex
Maximum distance: ...........................................1200 m
Isolation:..................................................................2 kV

Testing and certification

CERTIFICATION

APPROVAL
Applicable Council Directive According to
Low voltage directive EN60255-5, EN60255-27
CE compliance EMC Directive EN60255-26 / EN50263
UL508
North America cULus UL1053
C22.2.No 14

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–7

SPECIFICATIONS CHAPTER 1: INTRODUCTION

TYPE TESTS (TEST NOT PERFORMED FOR AC PSU)

Test Reference Standard Test Level

Dielectric voltage withstand 2.3KV
Impulse voltage withstand EN60255-5 5KV
Damped Oscillatory IEC61000-4-18IEC60255-22-1 2.5KV CM, 1KV DM
Electrostatic Discharge EN61000-4-2/IEC60255-22-2 Level 4
RF immunity EN61000-4-3/IEC60255-22-3 Level 3
Fast Transient Disturbance EN61000-4-4/IEC60255-22-4 Class A
Surge Immunity EN61000-4-5/IEC60255-22-5 Level 3
Conducted RF Immunity EN61000-4-6/IEC60255-22-6 Level 3
Power Frequency Immunity EN61000-4-7/IEC60255-22-7 Class A
Voltage interruptionand Ripple DC IEC60255-11 15% ripple, 200ms interupts
Radiated & Conducted Emissions CISPR11 /CISPR22/ IEC60255-25 Class A
Sinusoidal Vibration IEC60255-21-1 Class 1
Shock & Bump IEC60255-21-2 Class 1
Siesmic IEC60255-21-3 Class 2
Power magnetic Immunity IEC61000-4-8 Level 5
Pulse Magnetic Immunity IEC61000-4-9 Level 4
Damped Magnetic Immunity IEC61000-4-10 Level 4
Voltage Dip & interruption IEC61000-4-11 0, 40, 70% dips, 250/300cycle
interrupts
Damped Oscillatory IEC61000-4-12 2.5KV CM, 1KV DM
Voltage Ripple IEC61000-4-17 15% ripple
Ingress Protection IEC60529 IP20 (base unit) , IP54
(Control Panel)
Environmental (Cold) IEC60068-2-1 -25C 16 hrs
Environmental (Dry heat) IEC60068-2-2 70C 16hrs
Relative Humidity Cyclic IEC60068-2-30 6day variant 2
UL508 e83849 NKCR
Safety UL C22.2-14 e83849 NKCR7
UL1053 e83849 NKCR

Physical specifications
DIMENSIONS
Size: ........................................................................... Base: 78 mm (W) × 90 mm (H) × 113 mm (D) [+ terminals
10mm]
BCP: 75 mm (W) × 75 mm (H) × 31 mm (D)
Weight (Base):....................................................... 0.5 kg

1–8 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 1: INTRODUCTION SPECIFICATIONS

Environmental specifications

OPERATING ENVIRONMENT

Ambient temperatures:
Storage/shiipping: - 40C to 90C *
Operating: -20C to 60C *

Humidity Operating up to 95% (non condensing) @ 55C (As per

IEC60068-2-30 Variant 2, 6days)
Altitude: 2000m (max)
Pollution Degree: II
Overvoltage Category: II
Ingress protection: IP20 (base unit) , IP54 (Control Panel)
Environmental rating; 60C surrounding Air ,pollution degree II,Type 1 (panel
mount versions only)
* 1" around base unit

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–9

SPECIFICATIONS CHAPTER 1: INTRODUCTION

1–10 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 Digital Energy
Multilin

MM200 Motor Management System

Chapter 2: Installation

Installation

Mechanical installation
This section describes the mechanical installation of the MM200 system, including
dimensions for mounting.

Dimensions
The MM200 is packaged in a fixed format divided into three specific sections.
The dimensions of the MM200 are shown below. Additional dimensions for mounting are
shown in the following sections.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–1

MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION

Figure 1: MM200 dimensions

Product identification
The product identification label is located on the side panel of the MM200. This label
indicates the product model, serial number, firmware revision, and date of manufacture.
Figure 2: MM200 Identification label
Model:
Serial Number:
Firmware: Mfg.Date:

888748A1.CDR

2–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION

Figure 3: MM200 ratings label

Mounting
The MM200 is DIN rail mounted.
The standard DIN rail mounting is illustrated below. The DIN rail conforms to EN 50022.
To avoid the potential for personal injury due to fire hazards, ensure the unit is
CAUTION:

mounted in a safe location and/or within an appropriate enclosure.

CAUTION

Figure 4: DIN rail mounting

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–3

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

Electrical installation
This section describes the electrical installation of the MM200 system. An overview of the
MM200 terminal connections is shown below.
MM200 is not to be used in any way other than described in this manual.
CAUTION:

CAUTION
Figure 5: MM200 terminal connection overview
Profibus or DeviceNet
Optional fieldbus protocols

PSU RS485
Thermistor

CBCT

Inputs
2 x Form A
1 x Form C

Control Panel

CTs 888740A2.CDR

A Modbus RTU RS485 port, a thermistor input, and a 50:0.025 CBCT input are provided.
Profibus and Devicenet are provided as options.
Table 1: Slot position
Slot Type
A PSU/Inputs/Control Panel
B CPU/CTs
C Outputs/CBCT/Thermistor/RS485

Figure 6: MM200 terminal connection torque rating

connector screw torque

CT 4.5 lb-in

IPS, output 5.0 lb-in

Fieldbus, 3.0 lb-in

Thermistor & RS485

2–4 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

Use gauge size appropriate for the voltage and current draw of the device.
CAUTION:

CAUTION
Table 2: Wire Gauge Sizes
Slot A PSU and Inputs 12 AWG (2.5 mm2) (5.00mm pitch terminals)1
Slot B Fieldbus, 16 AWG (1.5 mm2) (3.50mm pitch terminals)12 AWG
(2.5 mm2) (7.62mm pitch terminals)1
CT Connections
Slot C RS485 & ThermistorOutput Relays, 16 AWG (1.5 mm2) (3.50mm pitch terminals12 AWG
CBCT (2.5 mm2) (5.00mm pitch terminals)1
1.Wire gauge size remains constant; increased pitch distance reflects higher voltage rating.

It is recommended that you install a circuit disconnection system for control power, near
NOTE:

the device, which should be easily accessible after installation of the unit. This is in case an
NOTE emergency power shut-down of the unit is required.

Figure 7: Top and Rear panel arrangement

The MM200 I/O terminals are labeled with a two-character identifier. The first character
identifies slot position and the second identifies the terminal.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–5

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

888351A3-P2

LO HI
Check the voltage rating of the unit before applying control power! Control power
CAUTION:

outside of the operating range of the power supply will damage the MM200.
CAUTION

Figure 8: CBCT ground CT connection

V- L H V+
MM200
PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
SG C10
CBCT I C9

R C8

LO and HI inputs One form-C

C7

CONTACT OUTPUT 3 C6
- see below - contact output
C5

C4
CONTACT OUTPUT 2
Two form-A C3
contact outputs
CONTACT OUTPUT 1
C2 M
C1 Contactor

CT MODULE
TO
CT1 CT2 CT3
CONTROL RJ45
PANEL I R I R I R

B3 B4 B5 B6 B7 B8

Contactor
A

B
MOTOR
C
M
888741A3.CDR

2–6 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

Figure 9: CBCT ground CT connection - LO and HI inputs

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL
A10 A10

CONTROL - A9 - CONTROL N A9 N
POWER POWER
24 VDC + A8 + VAC L A8 L
RESET
A7 NR RETURN

24 VDC CONTACT INPUTS

RESET
A6 A6

VAC CONTACT INPUTS

A5 A5
FIELD START FIELD START
A4 A4
FIELD STOP FIELD STOP
A3 A3

A2 A2

A1 A1
M M

LO HI
NOTE: AC power and AC input wiring shown.
Connect NR to Neutral if DC power supply used.
888742A1.cdr

The exact placement of a zero-sequence CT to detect only ground fault current is shown
below. If the core balance CT is placed over shielded cable, capacitive coupling of phase
current into the cable shield during motor starts may be detected as ground current unless
the shield wire is also passed through the CT window. Twisted-pair cabling on the zero-
sequence CT is recommended.
Figure 10: Core balance ground CT installation, shielded cable
CABLE LUGS
TO SOURCE
TERMINATION

STRESS CONE
SHIELD GROUND
CONNECTION

SPLIT-BOLT CONNECTOR

IMPORTANT: FOR SHIELDED

CABLE, THE GROUND WIRE
MUST PASS THROUGH THE
CT WINDOW.

50:0.025 CORE BALANCE CT

CORE BALANCE CT FOR GROUND SENSING
SECONDARY CONNECTION
TO MM200 IED
(TWISTED PAIR) TO STARTER
GROUND BUS
POWER CABLE
TO MOTOR

BOTTOM OF
MOTOR STARTER
COMPARTMENT 888712A1.CDR

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–7

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

Figure 11: Core balance ground CT installation, unshielded cable

CABLE LUGS TO SOURCE
TERMINATION

50:0.025 CORE BALANCE CT

FOR GROUND CT SENSING
CORE BALANCE CT
SECONDARY CONNECTION
TO MM200 IED GROUND CONDUCTOR DOES
(TWISTED-PAIR) NOT PASS THROUGH CT, AS THE
CT IS NOT MOUNTED OVER
GROUND WITHIN THE CABLE
JACKET.

TO STARTER
GROUND BUS
POWER CABLE
TO MOTOR

BOTTOM OF
MOTOR STARTER 888713A1.CDR
COMPARTMENT

Thermistor connections
Either a positive temperature coefficient (PTC) or negative temperature coefficient (NTC)
thermistor may be directly connected to the thermistor + and - terminals in slot C. By
specifying the hot and cold thermistor resistance, the MM200 automatically determines
the thermistor type as NTC or PTC. Use thermistors with hot and cold resistance values in
the range 100 to 30000 ohms. If no thermistor is connected, the Thermistor Alarm and
Thermistor Trip settings must be set to “Disabled”.

2–8 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

Figure 12: Typical thermistor connection

MOTOR

Stator thermistor

To switchgear
ground bus

N L
HI
Control power

LO
- + + – C + – R I SG
Control power RS485 Thermistor CBCT
CPU module

SG = Surge Ground = Functional Ground

MM200
Motor Management System
888743A2.CDR

RS485 connections
Figure 13: Typical RS485 connection

TWISTED PAIR
MM200 IED
ZT (*) SHIELD + RS485 +
OPTOCOUPLER OPTOCOUPLER
- RS485 -
DATA
DATA COM

SCADA, PLC, OR C
COMMON
PERSONAL COMPUTER

GROUND THE SHIELD AT THE

SCADA/PLC/COMPUTER ONLY
OR THE MM200 ONLY IED
RS485 +
(*) TERMINATING IMPEDANCE AT EACH END RS485 -
(typically 120 ohms and 1 nF)

COMMON

UP TO 32 MM200
OR OTHER IEDs, IED
MAXIMUM CABLE
LENGTH OF
1200 m (4000 ft.) ZT (*)
RS485 +
RS485 -

LAST
COMMON DEVICE
888745A1.CDR

One two-wire RS485 port is provided. Up to 32 MM200 IEDs can be daisy-chained together
on a communication channel without exceeding the driver capability. For larger systems,
additional serial channels must be added. Commercially available repeaters can also be
used to add more than 32 relays on a single channel. Suitable cable should have a

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–9

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

characteristic impedance of 120 ohms and total wire length should not exceed 1200
meters (4000 ft.). Commercially available repeaters will allow for transmission distances
greater than 1200 meters.
Voltage differences between remote ends of the communication link are not uncommon.
For this reason, surge protection devices are internally installed across all RS485 terminals.
Internally, an isolated power supply with an optocoupled data interface is used to prevent
noise coupling.
To ensure that all devices in a daisy-chain are at the same potential, it is imperative
CAUTION:

that the common terminals of each RS485 port are tied together and grounded only
CAUTION
once, at the master or at the MM200. Failure to do so may result in intermittent or
failed communications.

The source computer/PLC/SCADA system should have similar transient protection devices
installed, either internally or externally. Ground the shield at one point only, as shown in the
figure above, to avoid ground loops.
Correct polarity is also essential. The MM200 IEDs must be wired with all the positive (+)
terminals connected together and all the negative (–) terminals connected together. Each
relay must be daisy-chained to the next one. Avoid star or stub connected configurations.
The last device at each end of the daisy-chain should be terminated with a 120 ohm
¼ watt resistor in series with a 1 nF capacitor across the positive and negative terminals.
Observing these guidelines will ensure a reliable communication system immune to
system transients.

Protection

Phase current inputs Figure 14: Typical phase current input connections
Contactor
A

B
C

To switchgear
ground bus

A10 A9 A8

HI N L
Control power

A10 A9 A8 B3 B4 B5 B6 B7 B8

LO - + CT1 CT2 CT3

Control power Phase current inputs

MM200
Motor Management System
888714A2.CDR

The MM200 has three channels for phase current inputs, each with an isolating
transformer. The phase CTs should be chosen so the FLA is not less than 50% of the rated
phase CT primary. Ideally, the phase CT primary should be chosen such that the FLA is

2–10 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

100% of the phase CT primary or slightly less, never more. This will ensure maximum
accuracy for the current measurements. The maximum phase CT primary current is
1000 A.
The MM200 measures up to 8 times the phase current nominal rating. CTs with 1 A or 5 A
secondaries must be used if the FLA is greater than 5 A. The chosen CTs must be capable
of driving the MM200 phase CT burden.
Polarity of the phase CTs is critical for unbalance calculation.
CAUTION:

CAUTION

Two CT configuration Figure 15: Two CT connection

Contactor
A

B
C

To switchgear
ground bus

A10 A9 A8

HI N L
Control power

A10 A9 A8 B3 B4 B5 B6 B7 B8

LO - + CT1 CT2 CT3

Control power Phase current inputs

MM200
Motor Management System
888714A2.CDR

The proper configuration for the use of two CTs rather than three to detect phase current is
shown. Each of the two CTs acts as a current source. The current that comes out of the CT
on phase A flows into the interposing CT on the relay marked CT1. From there, the current
sums with the current that is flowing from the CT on phase C which has just passed
through the interposing CT on the relay marked CT3. This summed current flows through
the interposing CT marked CT2 and from there, the current splits up to return to its
respective source (CT).
Polarity is very important since the value of phase B must be the negative equivalent of
A + C in order for the sum of all the vectors to equate to zero.
Only one ground connection should be made as shown. If two ground connections are
made, a parallel path for current has been created.
In the two CT configuration, the currents will sum vectorially at the common point of the
two CTs. The diagram illustrates the two possible configurations. If one phase is reading
high by a factor of 1.73 on a system that is known to be balanced, simply reverse the
polarity of the leads at one of the two phase CTs (taking care that the CTs are still tied to
ground at some point). Polarity is important.
Change CT wiring only if the system is de-energized!
NOTE:

NOTE

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–11

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

Figure 16: Two CT connection vector diagram

1.73 60°
1 1

60° 60°

1 1
888715A1.CDR
To illustrate the point further, the following diagram shows how the current in phases A
and C sum up to create phase "B".
Figure 17: Two CT connection currents

1.73

1 C 1 B

A A

B C

Two-phase CT currents,
Two-phase CT currents
180° out-of-phase
888716A1.CDR

Once again, if the polarity of one of the phases is out by 180°, the magnitude of the
resulting vector on a balanced system will be out by a factor of 1.73.
On a three-wire supply, this configuration will always work and unbalance will be detected
properly. In the event of a single phase, there will always be a large unbalance present at
the interposing CTs of the relay. If for example phase A was lost, phase A would read zero
while phase B and C would both read the magnitude of phase C. If on the other hand,
phase B was lost, at the supply, phase A would be 180° out-of-phase with phase C and the
vector addition would equal zero at phase B.

2–12 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

Input/output

Type IO_C Figure 18: Typical wiring for IO connectors

connections
V- L H V+
MM200
PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
SG C10
CBCT I C9

R C8

LO and HI inputs One form-C

C7

CONTACT OUTPUT 3 C6
- see below - contact output
C5

C4
CONTACT OUTPUT 2
Two form-A C3
contact outputs
CONTACT OUTPUT 1
C2 M
C1 Contactor

CT MODULE
TO
CT1 CT2 CT3
CONTROL RJ45
PANEL I R I R I R

B3 B4 B5 B6 B7 B8

Contactor
A

B
MOTOR
C
M
888741A3.CDR

Figure 19: LO and HI input connections

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL

A10 A10

CONTROL - A9 - CONTROL N A9 N
POWER POWER
24 VDC + A8 + VAC L A8 L
RESET
A7 NR RETURN
24 VDC CONTACT INPUTS

RESET
A6 A6

VAC CONTACT INPUTS

A5 A5
FIELD START FIELD START
A4 A4
FIELD STOP FIELD STOP
A3 A3

A2 A2

A1 A1
M M

LO HI
NOTE: AC power and AC input wiring shown.
Connect NR to Neutral if DC power supply used.
888742A1.cdr

The MM200 contains two Form-A contact output relays, one Form-C contact output relay,
and seven digital inputs.
Contact inputs can be programmed to any of the input functions, such as field stop. The
exception is that contactor A status is fixed as the first contact input, and contactor B
status (where used) is fixed as the second contact input.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–13

ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION

The three contact outputs can be programmed to follow any one of the digital signals
developed by the MM200, such as alarms and status signals. The exception is that the
contactor A relay is fixed as the first contact output, and contactor B relay is fixed as the
second contact output (where used).

Dielectric strength testing

Figure 20: Testing for dielectric strength

VOLTAGE ADJUST HV ON

kV

DIELECTRIC STRENGTH TESTER V- L H V+

LINE FAULT
POWER FAULT RESET
MM200
BLACK RED
ON PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
A10 C10

CBCT I C9

R C8

C7
LO and HI One form-C
inputs contact output CONTACT OUTPUT 3 C6

- see below - C5

C4
CONTACT OUTPUT 2
Two form-A C3
Do not HI-POT test contact outputs
C2
HI-POT test at 1.9 kV AC for 1 second, or
CONTACT OUTPUT 1
1.6 kV AC for 1 minute (per UL 508) C1

CT MODULE
CT1 CT2 CT3
RJ45
I R I R I R

B3 B4 B5 B6 B7 B8

888738A2.CDR

Figure 21: LO and HI inputs

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL

A10 A10

A9 - A9 N

A8 + A8 L

A7 NR RETURN
24 VDC CONTACT INPUTS

A6 A6
VAC CONTACT INPUTS

A5 A5

A4 A4

A3 A3

A2 A2

A1 A1

LO HI
888742B1.cdr

2–14 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION

It may be required to test a complete motor starter for dielectric strength (“flash” or “HI-
POT”) with the MM200 installed. The MM200 is rated for 1.9 kV AC for 1 second, or 1.6 kV AC
for 1 minute (per UL 508) isolation between relay contacts, CT inputs, VT inputs and the
surge ground terminal SG. Some precautions are required to prevent damage to the
MM200 during these tests.
The CT inputs, control power, and output relays do not require any special precautions. Low
voltage inputs (less than 30 volts), RTDs, and RS485 communication ports are not to be
tested for dielectric strength under any circumstance (see above).

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–15

STARTER TYPES CHAPTER 2: INSTALLATION

Starter types
Full-voltage non-reversing starter
Figure 22: Full-voltage non-reversing starter wiring

V- L H V+
MM200
PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
SG C10
CBCT I C9

R C8

LO and HI inputs One form-C

C7

CONTACT OUTPUT 3 C6
- see below - contact output
C5

C4
CONTACT OUTPUT 2
Two form-A C3
contact outputs
CONTACT OUTPUT 1
C2 M
C1 Contactor

CT MODULE
TO
CT1 CT2 CT3
CONTROL RJ45
PANEL I R I R I R

B3 B4 B5 B6 B7 B8

Contactor
A

B
MOTOR
C
M
888741A3.CDR

Figure 23: LO and HI inputs

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL

A10 A10

CONTROL - A9 - CONTROL N A9 N
POWER POWER
24 VDC + A8 + VAC L A8 L
RESET
A7 NR RETURN
24 VDC CONTACT INPUTS

RESET
A6 A6
VAC CONTACT INPUTS

A5 A5
FIELD START FIELD START
A4 A4
FIELD STOP FIELD STOP
A3 A3

A2 A2

A1 A1
M M

LO HI
NOTE: AC power and AC input wiring shown.
Connect NR to Neutral if DC power supply used.
888742A1.cdr

The full-voltage non-reversing starter type is a full voltage or across-the-line non-reversing

starter.

2–16 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION STARTER TYPES

When a start control is received, the pre-contactor relay (if any) is picked up for the set pre-
contactor time. When the pre-contactor timer times out, relay contact output 1 closes and
seals-in, picking up contactor M, which starts the motor. When a stop control is received,
relay contact output 1 drops out, contactor M drops out, and the motor stops. The pre-
contactor is omitted on forced starts (for example, External Start).

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–17

STARTER TYPES CHAPTER 2: INSTALLATION

Full-voltage reversing starter

Figure 24: Full-voltage reversing starter wiring

V- L H V+
MM200
PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
C10

CBCT I C9

R C8
LO and HI inputs C7

- see below - One form-C

contact output CONTACT OUTPUT 3 C6

C5

CONTACT OUTPUT 2
C4 R
Two form-A C3
contact outputs
CONTACT OUTPUT 1
C2 F
C1 Contactor

CT MODULE
TO
CT1 CT2 CT3
CONTROL RJ45
PANEL I R I R I R

B3 B4 B5 B6 B7 B8

Contactor
A

B
MOTOR
C
F

888705A4.CDR
R

Figure 25: LO and HI inputs

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL

A10 A10

CONTROL - A9 - CONTROL N A9 N
POWER POWER
24 VDC + A8 + VAC L A8 L
RESET
A7 NR RETURN
24 VDC CONTACT INPUTS

RESET
A6 A6
VAC CONTACT INPUTS

FIELD START REV FIELD START REV

A5 A5
FIELD START FOR FIELD START FOR
A4 A4
FIELD STOP FIELD STOP
A3 A3

A2 A2
R R
A1 A1
F F

LO HI
NOTE: AC power and AC input wiring shown.
Connect NR to Neutral if DC power supply used.
888742A2.cdr

The full-voltage reversing starter type is a full voltage or across-the-line reversing starter.

2–18 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION STARTER TYPES

When a start A (forward) control is received, the pre-contactor relay (if any) is picked up for
the set pre-contactor time. When the pre-contactor timer times out, relay1 picks up and
seals-in, picking up contactor F, which starts the motor in the forward direction. When a
start B (reverse) control is received, relay1 drops out, and contactor F drops out. When the
contactor F Off status is received, the starter waits for the set transfer time to allow the
motor to slow or stop. When the transfer time timer times out, relay2 picks up and seals-in,
picking up contactor R, which starts the motor in the reverse direction. When a stop
control is received, relays 1 and 2 drop out, contactor F and R drop out, and the motor
stops. The starter logic is fully symmetrical between forward and reverse.
When a contact input has its function set to forward limit, and that contact closes, relay1
will drop out, stopping any forward rotation. When a contact input has its function set to
reverse limit, and that contact closes, relay2 will drop out, stopping any reverse rotation.
The pre-contactor is omitted on forced starts (for example, External Start). Forced starts
are not supervised by this starter transfer timer – any external starting circuit must itself
respect fast direction change restrictions.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–19

STARTER TYPES CHAPTER 2: INSTALLATION

Two-speed starter
Figure 26: Two-speed starter typical wiring

V- L H V+
MM200
PROFIBUS OR DEVICENET Motor Management System

RS485 -

C
+
THERMISTOR
-
C10

CBCT I C9

LO and HI inputs R C8

C7
- see below - One form-C
CONTACT OUTPUT 3 C6
contact output
C5

CONTACT OUTPUT 2
C4 H
Two form-A C3
contact outputs
CONTACT OUTPUT 1
C2 L
C1 Contactor

CT MODULE
TO
CT1 CT2 CT3
CONTROL RJ45
PANEL I R I R I R

B3 B4 B5 B6 B7 B8

C
L H
MOTOR

888706A4.CDR
H

Figure 27: LO and HI inputs

POWER (VDC)

POWER (VAC)
CONTROL
CONTROL

A10 A10

CONTROL - A9 - CONTROL N A9 N
POWER POWER
24 VDC + A8 + VAC L A8 L
RESET
A7 NR RETURN
24 VDC CONTACT INPUTS

RESET
A6 A6
VAC CONTACT INPUTS

FIELD START HI FIELD START HI A5

A5
FIELD START LOW FIELD START LOW
A4 A4
FIELD STOP FIELD STOP
A3 A3

A2 A2
H H
A1 A1
L L

LO HI
NOTE: AC power and AC input wiring shown.
Connect NR to Neutral if DC power supply used.
888746A1.cdr

This starter type is a full voltage or across-the-line two speed starter.

2–20 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: INSTALLATION STARTER TYPES

When a start A (low speed) control is received, the pre-contactor relay (if any) is picked up
for the set pre-contactor time. When the pre-contactor timer times out, relay1 picks up
and seals-in, picking up contactor L, which starts the motor in low speed. When a start B
(high speed) control is received, the relay1 drops out, and contactor L drops out. When
contactor L Off status is received, the relay2 picks up and seals-in, picking up contactor H,
which starts the motor in high speed. Should a start A (low speed) control be received when
relay2 is picked up, relay2 is drops out, and contactor H drops out. When contactor H Off
status is received, the starter waits for the set transfer time to allow the motor to slow.
When the transfer time timer times out, the relay1 picks up and seals-in, picking up
contactor L, which starts the motor in low speed. When a stop control is received, the
relays 1 and 2 drop out, contactors L and H drop out, and the motor stops. If the HIGH
SPEED START BLOCK setting is “Enabled”, this starter will not allow a start B (high speed)
control unless already running at low speed.
The pre-contactor is omitted on forced starts (for example, External Start). Forced starts
are not supervised by this starter transfer timer – any external starting circuit must itself
respect high to low speed transition restrictions and starting in high speed restrictions.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–21

STARTER TYPES CHAPTER 2: INSTALLATION

2–22 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 Digital Energy
Multilin

MM200 Motor Management System

Chapter 3: Control panel

Control panel

This section provides an overview of the interfacing methods available with the MM200.
For additional details on interface parameters (for example, settings, actual values, etc.),
refer to the individual chapters.
There are two methods of interfacing with the MM200 Motor Management System.
• Via the basic control panel.
• Via the EnerVista MM200 Setup software.
For full details on handling the EnerVista MM200 Setup software, please use the EnerVista
NOTE:

MM200 Setup Software Guide which accompanies this manual.

NOTE

Basic control panel

The MM200 basic control panel provides the basic start and stop panel functionality, as
well as a series of LED indications. The basic control panel is illustrated below.
Figure 1: Basic control panel

888750A1.CDR

The following LEDs are provided:

• Two USER LEDs (USER 1 and USER 2). the user can select parameters from a list

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 3–1

BASIC CONTROL PANEL CHAPTER 3: CONTROL PANEL

• 50%/80%/100% - showing motor load

• RUNNING, STOPPED, TRIPPED, and ALARM
• COMMS OK
• AUTO and MANUAL

3–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 3: CONTROL PANEL MM200 GRAPHICAL DISPLAY PAGE HIERARCHY

MM200 graphical display page hierarchy

A summary of the MM200 page hierarchy is shown below:
Figure 2: MM200 display page hierarchy

Values Summary

Amps

Sensor

Motor
Status Message Reset
CT
Inputs
Inputs Trips
Outputs
Outputs Alarms
System
Comms Control

System

Setpoints Config Counters

Protection
Thermal
Control
Mech
Security
Elec

Sensor

Diag Counters Clear

Starter
Info
Inhibits
Learned

Control Auto

Manual

Main menu Level 1 Level 2 Level 3

8883701A1.CDR

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 3–3

ENERVISTA MM200 SETUP SOFTWARE CHAPTER 3: CONTROL PANEL

EnerVista MM200 Setup Software

The EnerVista MM200 Setup software is available from GE Multilin to make setup as
convenient as possible. With EnerVista MM200 Setup running, it is possible to:
• Program and modify settings
• Load and save settings files to and from a disk
• Read actual values
• Monitor status
• Read pre-trip data
• Get help on any topic
• Upgrade the MM200 firmware
Before performing a firmware upgrade, ensure that you create a back-up of your existing
NOTE:

settings files.
NOTE
Once the firmware upgrade has been completed on the PC, the firmware on the MM200
must be immediately upgraded from the PC.
Check the firmware level on the MM200 once the above operations have been completed.
The EnerVista MM200 Setup software allows immediate access to all MM200 features with
easy to use pull down menus in the familiar Windows environment. This section provides
the necessary information to install EnerVista MM200 Setup, upgrade the relay firmware,
and write and edit setting files.
The EnerVista MM200 Setup software can run without a MM200 connected to the
computer. In this case, settings may be saved to a file for future use. If an MM200 is
connected to a PC and communications are enabled, the MM200 can be programmed
from the setting screens. In addition, measured values, status and trip messages can be
displayed with the actual value screens.

Software requirements
The following requirements must be met for the EnerVista MM200 Setup software.
• Microsoft Windows™ XP / 2000 is installed and running properly.
• At least 20 MB of hard disk space is available.
• At least 128 MB of RAM is installed.
The EnerVista MM200 Setup software can be installed from either the GE EnerVista CD or
the GE Multilin website at http://www.GEmultilin.com.

Installing the EnerVista MM200 Setup software

After ensuring the minimum requirements indicated earlier, use the following procedure to
install the EnerVista MM200 Setup software from the enclosed GE EnerVista CD.
1. Insert the GE EnerVista CD into your CD-ROM drive.
2. Click the Install Now button and follow the installation instructions to install the no-
charge EnerVista software on the local PC.
3. When installation is complete, start the EnerVista Launchpad application.
4. Click the IED Setup section of the Launch Pad toolbar.

3–4 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 3: CONTROL PANEL ENERVISTA MM200 SETUP SOFTWARE

5. In the EnerVista Launchpad window, click the Add Product button and select the
MM200 Motor Management System as shown below. Select the Web option to ensure
the most recent software release, or select CD if you do not have a web connection,
then click the Add Now button to list software items for the MM200.

6. EnerVista Launchpad will obtain the latest installation software from the Web or CD
and automatically start the installation process. A status window with a progress bar
will be shown during the downloading process.

7. Select the complete path, including the new directory name, where the EnerVista
MM200 Setup software will be installed.
8. Click on Next to begin the installation. The files will be installed in the directory
indicated and the installation program will automatically create icons and add
EnerVista MM200 Setup software to the Windows start menu. The following screen will
appear:
9. The MM200 device will be added to the list of installed IEDs in the EnerVista
Launchpad window, as shown below.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 3–5

ENERVISTA MM200 SETUP SOFTWARE CHAPTER 3: CONTROL PANEL

Uploading the MM200 Firmware

Use the following steps to upload the MM200 firmware to the MM200 device:
1. Remove the Basic Front Panel (if connected) from the BCP (RJ45) port of the CPU.
2. Connect the special RJ45 to D89 cable through this RJ45 port to the computer’s serial
port. Please contact GE Mutlin to place an order for this cable (Part Number:
B3427G5).
3. Launch the EnerVista MM200 Setup software application.
4. Open Device Setup and add a site and a device.
5. Select Serial as the interface. Baud Rate = 115200, Slave Address = 254, Parity =
None, Bits = 8, Stop Bits = 1.
6. Select the COM Port number of the PC, to which the DB9 is connected (normally 1 or 2),
and press the Read Order Code button.
7. Once the Order Code and Version are read from the device, press OK.
8. In Setup Software, go to the Online window and expand the tree for this newly-added
device.
9. Go to Maintenance > Firmware Upload, select the firmware file to be uploaded to the
device, and press Proceed. A popup message will appear, showing the type of cable
connection required to perform the firmware upload process (RJ45 to RS232 cable).
When uploading firmware, remove the RS485 connector from the device. When the
warning message appears, press OK and the firmware will start to upload.
10. Once the Setup Software message appears, indicating that the Firmware Upload was
successful, you must reboot the device.
You have successfully uploaded the new firmware to the device, and the device is now
ready to be used.

3–6 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 Digital Energy
Multilin

MM200 Motor Management System

Chapter 4: Setpoints

Setpoints

Understanding setpoints
Setpoints can be modified via RS485, using the EnerVista MM200 Setup program.
Setpoints may be changed while the motor is running; however it is not recommended
CAUTION:

to change important protection parameters without first stopping the motor.

CAUTION

Setpoints will remain stored indefinitely in the internal non-volatile memory even when
control power to the unit is removed. Protection parameters are based on the entered
data. This data must be complete and accurate for the given system for reliable protection
and operation of the motor.

Setting text abbreviations

The following abbreviations are used in the setpoints pages.
• A, Amps: amperes
• AUX: auxiliary
• CBCT: core balance current transformer
• COM, Comms: communications
• CT: current transformer
• FLA: full load amps
• FV: full voltage
• G/F: ground fault
• GND: ground
• Hz: Hertz
• kohms: kilo-ohms
• MAX: maximum
• MIN: minimum
• SEC, s: seconds
• VT: voltage transformer

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–1

UNDERSTANDING SETPOINTS CHAPTER 4: SETPOINTS

• %UB: percent unbalance

• Ctrl: control
• Hr & hr: hour
• O/L: overload
• ops: operations
• mcc: motor control center

4–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

CHAPTER 4: SETPOINTS CONFIGURATION SETPOINTS

Configuration setpoints
The configuration setpoints contains data on motor configuration as well as system setup,
inputs, outputs, communications, and CTs.
• Motor (setpoints related to motor configuration).
• CT (setpoints related to CT configuration).
• Inputs (setpoints related to digital input configuration)
• Outputs (setpoints related to digital output configuration)
• Comms (setpoints related to communications configuration)
• System (setpoints related to MM200 system configuration, such as the faceplate LEDs)
• Counters (setpoints related to the digital counters)

Motor setpoints
The MM200 starter function is responsible for executing the motor startup sequence,
including the pre-contactor start warning. The MM200 provides three pre-defined starters.
• Full-voltage non-reversing
• Full-voltage reversing
• Two-speed
By selecting a pre-defined starter, inputs and outputs are automatically assigned.
NOTE:

NOTE

Common motor Several motor setpoints are dependent on the chosen starter type. The setpoints shown
setpoints below are common to all starter types.
Motor Name
Range: up to 20 alphanumeric characters
Default: Motor Name
This setpoint specifies a name for the motor. This name will appear in the actual values.
Starter Type (Mandatory setpoint)
Range: None, FV Non-Reversing, FV Reversing, Two Speed
Default: FV Non-Reversing
This setpoint selects the starter type. The relay is essentially disabled when the value is
set to “None”. Figure 1 illustrates typical starter timing beginning from the stopped state
for all starter types.
Motor FLA (Mandatory setpoint)
Range: 0.5 to 1000.0 amps in steps of 0.1
Default: OFF
This setpoint must be specified for motor protection. The value may be taken from the
motor nameplate data sheets.
Supply Frequency (Mandatory setpoint)
Range: 50 Hz, 60 Hz
Default: 60 Hz
This setpoint specifies the nominal system frequency.
The following sections provide additional information for each starter type.

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CONFIGURATION SETPOINTS CHAPTER 4: SETPOINTS

Figure 1: Typical starter timing

Start A

Start A
Start B

Stop
Full Voltage Non-reversing
Motor Current

Contactor A Relay

Contactor B Relay

Pre-contactor
P
Starting

Running

Motor Current
Full Voltage Reversing

Contactor A Relay
T T
Contactor B Relay

Pre-contactor
P
Starting

Running

Motor Current
Two Speed Starter

Contactor A Relay
T
Contactor B Relay

Pre-contactor
P
Starting

Running
P - Pre-contactor Time setting
T - Transfer Time setting
R - Ramp Down Time setting
888710A1.CDR

Full-voltage non- If the Starter Type setpoint is programmed to “FV Non-Reversing”, the pre-contactor relay
reversing starter (if any) is picked up for the set Pre-Contactor Time when a start control is received. When
the pre-contactor timer times out, the contactor A relay contact output picks up and seals-
in, starting the motor. When a stop control is received, contactor A relay contact output is
dropped out and the motor stops.
The following figure illustrates typical starter timing beginning from the stopped state.
Figure 2: Typical starter timing for full-voltage non-reversing starter
Start A

Start A
Start B

Stop

Motor current

Contactor A relay

Contactor B relay

Pre-contactor
P
Starting

Running

P = Pre-contactor time setting 888717A1.CDR

The following additional setpoint is available for the full-voltage non-reversing starter.

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CHAPTER 4: SETPOINTS CONFIGURATION SETPOINTS

Pre-Contactor Time
Range: 0 to 60 seconds in steps of 1
Default: 0 seconds
This setpoint represents the time after a start command before the motor is started. An
audible or other warning signal can be activated in this interval by connecting the signal
to a contact output set to the pre-contactor function.

Full-voltage reversing The full-voltage reversing starter type is a full-voltage or across-the-line reversing starter.
starter When a start A (forward) control is received, the pre-contactor relay (if any) is picked up for
the set Pre-Contactor Time. When the pre-contactor timer times out, the contactor A
relay picks up and seals-in, starting the motor in the forward direction. When a start B
(reverse) control is received, the A contactor is dropped out. When contactor A status off is
received, the starter waits for the set Transfer Time to allow the motor to slow or stop.
When the transfer time timer times out, the contactor B relay picks up and seals-in,
starting the motor in the reverse direction. When a stop control is received, the contactor A
and B relays are dropped out and the motor stops. The starter logic is fully symmetrical
between forward and reverse.
When a contact input has its function set to “Forward Limit”, and that contact closes, the
contactor A relay will drop out. When a contact input has its function set to “Reverse Limit”,
and that contact closes, the contactor B relay will drop out.
The following figure illustrates typical starter timing beginning from the stopped state.
Figure 3: Typical starter timing for full-voltage reversing starter
Start A

Start A
Start B

Stop
Motor current

Contactor A relay
T T
Contactor B relay

Pre-contactor
P
Starting

Running

P = Pre-contactor time setting

T = Transfer time setting 888718A1.CDR

The following additional setpoints are available for the full-voltage reversing starter.
Pre-Contactor Time
Range: 0 to 60 seconds in steps of 1
Default: 0 seconds
This setpoint represents the time after a start command before the motor is started. An
audible or other warning signal can be activated in this interval by connecting the signal
to a contact output set to the pre-contactor function.
Transfer Time
Range: 0 to 125 seconds in steps of 1
Default: 1 second
This setpoint represents the time between stopping and starting in a new direction for
the reversing starter.

Two-speed starter The “Two Speed” starter type is a full-voltage or across-the-line two speed starter.
When a start A (low speed) control is received, the pre-contactor relay (if any) is picked up
for the set Pre-Contactor Time. When the pre-contactor timer times out, the contactor A
relay picks up and seals-in, starting the motor in low speed. When a start B (high speed)

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CONFIGURATION SETPOINTS CHAPTER 4: SETPOINTS

control is received, the A contactor is dropped out. When contactor A status Off is received,
the contactor B relay picks up and seals-in, starting the motor in high speed. Should a start
A (low speed) control be received when the high speed contactor B is picked up, contactor
B is dropped out. When contactor B status Off is received, the starter waits for the set
Transfer Time to allow the motor to slow. When the transfer time timer times out, the
contactor A relay picks up and seals-in, starting the motor in low speed. When a stop
control is received, the contactor A and B relays are dropped out and the motor stops.
If the High Speed Start Block setpoint is “Enabled”, this starter will not allow a start B (high
speed) control unless already running on contactor A (low speed).
Forced starts are not supervised by this starter transfer timer – any external starting circuit
must itself respect high to low speed transition restrictions and starting in high speed
restrictions.
The following figure illustrates typical starter timing beginning from the stopped state.
Figure 4: Typical starter timing for two-speed starter

Start A

Start A
Start B

Stop
Motor current

Contactor A relay
T
Contactor B relay

Pre-contactor
P
Starting

Running

P - Pre-contactor time setting

T - Transfer time setting 888719A1.CDR

The following additional setpoints are available for the two-speed starter.
High Speed FLA
Range: 0.5 to 1000.0 amps in steps of 0.1
Default: OFF
This setpoints specifies the maximum continuous phase current when running in high
speed.
Pre-Contactor Time
Range: 0 to 60 seconds in steps of 1
Default: 0 seconds
This setpoint represents the time between a start command and the starting of the
motor. An audible or other warning signal can be activated during this interval, by
connecting the signal to a contact output set to the pre-contactor function.
High Speed Start Block
Range: Enabled, Disabled
Default: Enabled
This setpoint specifies the high-speed motor rating for two-speed starters, in kW on the
line. This setpoint is for reference only, and does not affect operation of the MM200.
Transfer Time
Range: 0 to 125 seconds in steps of 1
Default: 1 second
This setpoint represents the time between running at high speed and starting at low
speed for the two speed starter.

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CHAPTER 4: SETPOINTS CONFIGURATION SETPOINTS

Current transformers
The following setpoints are available to configure the current and voltage transformers.
Phase CT Type (Mandatory setpoint)
Range: None, 1 A Secondary, 5 A Secondary, Direct Connect
Default: Direct Connect
This setpoint specifies the phase CT connection type. The “Direct Connect” value
indicates that no phase CTs are used; instead, motor phase current passes directly
through the relay. The “Direct Connect” selection should never be used where full load
current is greater than 5.0 amps.
If Direct Connect is selected and the FLA is set >5 A, a "FLA too high" message will be
NOTE:

displayed on the Status page.

NOTE
CT Primary Turns
Range: 1 to 10
Default: 1
For smaller motors where the drawn current is very low, the motor leads may be
wrapped through the CT Primary with several turns thereby increasing the current seen
by the MM200 and as a result increasing the accuracy of the measurement. The value of
this setting should equal the number of turns on the CT Primary to display the correct
current value. Internally the current measurement will be divided by this setting.
CT Primary (Mandatory setpoint)
Range: 5 to 1000 amps in steps of 1
Default: 5 amps
This setpoint specifies the phase CT primary current. It should never be less than the full
load current, and preferably no greater than twice than the full load current.
This setpoint is displayed only if the phase CT is selected to 1 A secondary or 5 A
NOTE:

secondary.
NOTE
High Speed CT Primary
Range: 5 to 1000 amps in steps of 1
Default: 5 amps
This setpoint specifies the phase CT primary current when the motor is running at high
speed. It should never be less than the high speed full load current, and preferably no
greater than twice than the high speed full load current.
This setpoint is displayed only if the phase CT is selected as 1 A secondary or 5 A
NOTE:

secondary and the motor starter type is two-speed.

NOTE

Inputs
The MM200 digital (contact) inputs are programmed in this menu.
Inputs are automatically assigned based on typical wiring diagrams, shown in chapter 2,
NOTE:

when a pre-defined starter is selected.

NOTE
The following setpoints are available for each contact input:

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CONFIGURATION SETPOINTS CHAPTER 4: SETPOINTS

Function
Range: Access Switch, Comms Permissive, Contactor A Status, Contactor B Status, Field
Permissive, Field Start A, Field Start B, Field Stop, Forward Limit, Hard Wired Permissive,
Hard Wired Start A, Hard Wired Start B, Hard Wired Stop, Lockout Reset, MCC Permissive,
Remote Reset, Reverse Limit, Test Switch, Auto/Manual Switch.
Default: None
– “Access Switch”: This value represents an open contact that disables security
access of selected levels. When closed, sets the access level to the value
configured in Security > Access Switch Level.
– “Auto/Manual”: "Close" sets the auto mode. "Open" sets the manual mode.
– “Comms Permissive”: This value represents an open contact that disables
communications control. Used by the auto/manual control element.
– “Contactor A Status”: This value represents the normally open auxiliary contact of
contactor A. Used by the starters, the stop/start control element, and the system
trouble function. Automatically assigned to the first input when a starter type is
selected. Not otherwise user-programmable.
– “Contactor B Status”: This value represents the normally open auxiliary contact of
contactor B. Used by the starters, the stop/start control element, and the system
trouble function. Automatically assigned to the second input when a reversing or
two-speed starter type is selected. Not otherwise user assignable.
– “Field Permissive”: This value represents an open contact which disables field
control. Used by the auto/manual control element.
– “Field Start A”: This value represents a field-located manual switch requesting
contactor A pickup. Used by the auto/manual control element.
– “Field Start B”: This value represents a field-located manual switch requesting
contactor B pickup. Used by the auto/manual control element.
– “Field Stop”: This value represents a field-located manual switch where an open
position requests stop. Used by the auto/manual control element.
– “Forward Limit”: This value represents a contact which opens at the forward
travel limit. Used by the reversing starter type.
– “Hard Wired Permissive”: This value represents an open contact that disables
hard-wired control. Used by the auto/manual control element.
– “Hard Wired Start A”: This value represents an auto contact (typically from a PLC)
requesting contactor A pickup. Used by the auto/manual control element.
– “Hard Wired Start B”: This value represents an auto contact (typically from a PLC)
requesting contactor B pickup. Used by the auto/manual control element.
– “Hard Wired Stop”: This value represents an auto contact (typically from a PLC)
where the open position requests stop. Used by the auto/manual control element.
– “Lockout Reset”: This value represents a contact input used to reset lockouts, trips,
and alarms.
– “NA”: This value indicates the contact Input has no assigned function.
– “MCC Permissive”: This value represents an open contact that disables MCC
control. Used by the auto/manual control element.
– “Remote Reset”: This value represents a contact input used to resets non-lockout
trips and alarms.
– “Reverse Limit”: This value represents a contact which opens at the reverse travel
limit. Used by the reversing starter type.
– “Test Switch”: This value repesents a contat input used to supend collection of
selected data items, override auto/manual modes, and cause interlocks to be
ignored.

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When a Lockout Reset is used to reset a Thermal Overload, the Thermal Capacity % will be
NOTE:

reset to zero.
NOTE

Outputs
Contact outputs are designated by their card slot letter appended with their card terminal
number. Contact outputs, which have two or three terminals, use the first of their terminal
numbers on the GCP. This is the same scheme as is used to form the relay terminal
designation.
When a starter type is selected, the first equipped contact output and the first equipped
contact input are forced to the contactor A relay function and the contactor A status
function, respectively. When the two-speed or reversing starter type is selected, the
second equipped contact output and the second equipped contact input are forced to the
contactor B relay function and the contactor B status function, respectively. Any prior
values for these setpoints are erased, and the setpoint becomes non-editable.

Communications setpoints
The MM200 has one RS485 serial communications port supporting a subset of the Modbus
protocol. An additional DeviceNet or Profibus port is also available as an option.
The following setpoints are available.
Slave Address
Range: 1 to 254 in steps of 1
Default: 254
For RS485 communications, each MM200 IED must have a unique address from 1 to 254.
Address 0 is the broadcast address detected by all IEDs in the serial link. Addresses do
not have to be sequential, but no two units can have the same address or errors will
occur. Generally, each unit added to the link uses the next higher address starting at 1.
RS485 Baud Rate
Range: 9600, 19200, 38400, 57600, or 115200 baud
Default: 115200 baud
This setpoint selects the baud rate for the RS485 port. The data frame is fixed at 1 start,
8 data, and 1 stop bits, while parity is optional.
DeviceNet MAC ID
Range: 0 to 63 in steps of 1
Default: 63
This setpoint specifies the dedicated MAC ID as per the DeviceNet design.
DeviceNet Baud Rate
Range: 125, 250, or 500 kbps
Default: 125 kbps
This setpoint selects the DeviceNet baud rate.
Profibus Address
Range: 1 to 125
Default: 1
This setpoint allows the user to select the appropriate Profibus address.
Profibus Baud Rate
Range: 9600 to 1.5 M
Default: 1.5 M
This setpoint selects the Profibus baud rate.

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CONFIGURATION SETPOINTS CHAPTER 4: SETPOINTS

System

System security Hardware and passcode security features are designed to restrict user access. This can
deter inappropriate employee action and curtail errors. Security against hackers or others
with malicious intent should be provided by other means. Security for the external hard-
wired and field controls should also be externally provided as required.
Three security levels above the default level are recognized. Each security level can also be
set for passcode access. The passcode is programmed as a five-digit number, using only
digits 1 through 5. The security access levels are:
• Default - start/stop control, auto/manual selection, and reset trips
• Level 1 - default privileges plus setpoint access
• Level 2 - level 1 privileges plus lockout reset and reset counters
• Level 3 - level 2 privileges plus factory page.
Passcodes are automatically canceled after five minutes of inactivity. Communications
passcode access can be cancelled by writing zero to the passcode register.
The following system security setpoints are programmed in the security page.
Passcode Level 1, Passcode Level 2, Passcode Level 3
Range: any five-digit number using digits 1 through 5 only or Disabled
Default value: 11111 (level 1), 22222 (level 2)
Access is granted if a passcode has been correctly entered matching the value of this
setpoint.
Access Switch Level
Range: 1, 2, 3
Default value: 1
Sets the access level provided by the access switch being closed. The contact input for
the access switch is configured on the contact inputs page.
Comms security
Range: Enabled, Disabled
Default: Disabled
Sets whether the security feature applies to the communications ports.

System trouble For relay self-test, the MM200 runs a series of self-tests, including data and program
memory integrity and program execution watchdogs. If any of these tests fail, a self-test
trip or alarm is generated depending on the value of the Self Test Action setpoint.
The following setpoints are available for the system trouble element.
Self-Test Action
Range: Trip, Alarm
Default: Trip
This setpoint defines whether a self-test failure will cause a trip or an alarm.

LED indicators These setpoints allow the user to control the display characteristics of the front panel LEDs.
The following setpoints are available.
User 1 LED Assignment, User 2 LED Assignment, User 3 LED Assignment
Range: Any alarm trip control I/O operand
Default: Not Set
This setpoint determines whether the Tripped LED flashes or is steadily illuminated when
there is a trip or lockout condition.

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USER 1 LED Color

Range: None, Red, Green, Orange
Default: Red
Selects the color of the USER LEDs.
USER 2 LED Color
Range: None, Red, Green, Orange
Default: Red
Selects the color of the USER LEDs.
Reset Lockout using Reset Key
Range: Disabled, Enabled
Default: Disabled
When this setpoint is programmed as "Disabled," the relay does not allow performing of
the Reset Lockout using the Reset key. When programmed as "Enabled," the Reset
Lockout can be performed using the Reset key.
Change Mode when Running
Range: Disabled, Enabled
Default: Disabled
When this setpoint is programmed as "Disabled," the relay does not allow changing of
the Auto/Manual mode. When programmed as "Enabled," the relay does allow changing
of the Auto/Manual mode.
Running LED Color
Range: None, Red, Green, Orange
Default: Green
Selects the color of the Running LED.
Stopped LED Color
Range: None, Red, Green, Orange
Default: Red
Selects the color of the Stopped LED.
Alarm LED Color
Range: None, Red, Green, Orange
Default: Orange
Selects the color of the Alarm LED.
Tripped LED Color
Range: None, Red, Green, Orange
Default: Red
Selects the color of the Tripped LED.
Comms OK LED Color
Range: None, Red, Green, Orange
Default: Green
Selects the color of the Comms OK LED.
Auto LED Color
Range: None, Red, Green, Orange
Default: Orange
Selects the color of the Auto LED.

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CONFIGURATION SETPOINTS CHAPTER 4: SETPOINTS

Manual LED Color

Range: None, Red, Green, Orange
Default: Orange
Selects the color of the Manual LED.
50% LED Color
Range: None, Red, Green, Orange
Default: Orange
Selects the LED color at 50% of the motor load.
80% LED Color
Range: None, Red, Green, Orange
Default: Orange
Selects the LED color at 80% of the motor load.
100% LED Color
Range: None, Red, Green, Orange
Default: Orange
Selects the LED color at 100% of the motor load.

Counters Settings Drive Greasing Interval

Range: 100 to 50000 hours in steps of 100 hours
Default: OFF
This setpoint allows the user to set the alarm level for the greasing interval
Contactor Inspection Interval
Range: 0 to 64000 hours in steps of 100 hours
Default: OFF
This setpoint allows the user to set the alarm level for the contactor inspection interval.
Maximum Motor Stopped Time
Range: 10 to 10000 hours in steps of 10 hours
Default: OFF
This setpoint allow the user to set the alarm level for the maximum allowable motor
stopped hours.

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CHAPTER 4: SETPOINTS PROTECTION ELEMENTS

Protection elements
Thermal protection
The primary protective function of the MM200 is the thermal model. The MM200 integrates
stator and rotor heating into a single model. The rate of motor heating is gauged by
measuring the terminal currents. The present value of the accumulated motor heating is
maintained in the Thermal Capacity Used actual value register. When the motor is in
overload, the motor temperature and thermal capacity used will rise. A trip occurs when
the thermal capacity used reaches 100%. When the motor is stopped and is cooling to
ambient, the thermal capacity used decays to zero. If the motor is running normally, the
motor temperature will eventually stabilize at some steady state temperature, and the
thermal capacity used increases or decreases to some corresponding intermediate value,
which accounts for the reduced amount of thermal capacity left to accommodate
transient overloads.
The thermal model consists of four key elements.
• Hot/cold biasing that accounts for normal temperature rise.
• An overload curve that accounts for the rapid heating that occurs during stall,
acceleration, and overload.
• Cooling rate that accounts for heat dissipation.
• Thermal protection reset that controls recovery from thermal trips and lockouts.
Each of these categories are described in the following sub-sections.

Hot/cold biasing When the motor is running with a constant load below the overload level, the motor will
eventually reach a steady state temperature, which corresponds to a particular steady-
state thermal capacity used. As some thermal capacity is used, there is less thermal
capacity left in the motor to cover transient overloads than is available when the motor is
cold. Typically, the extent of this effect is calculated by taking the ratio of the motor's rated
hot safe stall time to its rated cold safe stall time. The safe stall time (also known as locked
rotor time) is the time taken with the rotor not turning for the motor to heat to a
temperature beyond which motor damage occurs at an unacceptable rate. The term 'cold'
refers to starting off with the motor at ambient temperature, while 'hot' refers to starting
off with the motor at the temperature reached when running at rated load. The method
the thermal model uses to account for the pre-overload state is thus known as hot/cold
biasing.
The MM300 calculates the steady-state thermal capacity used according to the following
equation.
TCUSS = Ieq
2
´ (100% - HCR ) Eq. 1
In the above equation:
• TCUSS represents the steady-state thermal capacity used expressed as a percentage.
• Ieq represents the equivalent motor heating current in per-unit values on an FLA base.
Refer to unbalance biasing for additional details.
• HCR represents the value of the Hot/Cold Safe Stall Ratio setpoint expressed as a
percentage.
If a Hot/Cold Safe Stall Ratio value of 100% is entered, the hot/cold biasing is defeated,
and unless RTD biasing is deployed, the thermal model will operate as if the motor was
cold prior to overload.

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PROTECTION ELEMENTS CHAPTER 4: SETPOINTS

Overload curve The overload curve accounts for the rapid motor heating that occurs during stall,
acceleration, and overload. Specifically, the overload curve controls the rate of increase of
Thermal Capacity Used whenever the equivalent motor heating current is greater than
1.01 times the full load current setpoint. The curve is defined by the following equation and
reflects that overload heating largely swamps the cooling, and this heating is primarily due
to resistive losses in the stator and the rotor windings (said losses being proportional to the
square of the current).

Pickup = IAV
FLA Eq. 2

Trip time = Curve Multiplier ´ 2.2116623

2
0.02530337 x (Pickup - 1) + 0.05054758 x (Pickup -1) Eq. 3
In the above equation,
• The trip time represents the time (in seconds) for the MM200 to trip, given the motor
starts cold and the current is constant.
• The multiplier represents the value of the Curve Multiplier setpoint. This setpoint can
be used to adjust the curve to match the thermal characteristics of the motor.
• Iav represents the equivalent motor heating current in per-unit values on a full load
current base. The value of IAV is limited in this equation to 8.0 to prevent the overload
from acting as an instantaneous element and responding to short circuits.
For example, a motor with a stall current (also known as locked rotor current) of 8 times its
FLA, with a curve multiplier of 7, if stalled from a cold state, trips in the following amount of
time.
Trip time = Curve Multiplier ´ 2.2116623
2
0.02530337 x (Pickup - 1) + 0.05054758 x (Pickup -1)

= 7 ´ 2.2116623
2
0.02530337 x (8 - 1) + 0.05054758 x (8 -1)

= 9.714 seconds Eq. 4

This would respect a safe stall cold time of 10 seconds.
The standard overload curves are displayed below.

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CHAPTER 4: SETPOINTS PROTECTION ELEMENTS

Figure 5: Standard overload curves

100000

10000

TIME IN SECONDS

1000

100

x15

10

x1

1.00
0.10 1.00 10 100 1000

MULTIPLE OF FULL LOAD AMPS

888731A2.CDR

The trip times for the standard overload curves are tabulated below.

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PROTECTION ELEMENTS CHAPTER 4: SETPOINTS

Table 1: Standard overload curve trip times (in seconds)

PICKUP STANDARD CURVE MULTIPLIERS
(× FLA)
×1 ×2 ×3 ×4 ×5 ×6 ×7 ×8 ×9 × 10 × 11 × 12 × 13 × 14 × 15
1.01 4353.6 8707.2 13061 17414 21768 26122 30475 34829 39183 43536 47890 52243 56597 60951 65304
1.05 853.71 1707.4 2561.1 3414.9 4268.6 5122.3 5976.0 6829.7 7683.4 8537.1 9390.8 10245 11098 11952 12806
1.10 416.68 833.36 1250.0 1666.7 2083.4 2500.1 2916.8 3333.5 3750.1 4166.8 4583.5 5000.2 5416.9 5833.6 6250.2
1.20 198.86 397.72 596.58 795.44 994.30 1193.2 1392.0 1590.9 1789.7 1988.6 2187.5 2386.3 2585.2 2784.1 2982.9
1.30 126.80 253.61 380.41 507.22 634.02 760.82 887.63 1014.4 1141.2 1268.0 1394.8 1521.6 1648.5 1775.3 1902.1
1.40 91.14 182.27 273.41 364.55 455.68 546.82 637.96 729.09 820.23 911.37 1002.5 1093.6 1184.8 1275.9 1367.0
1.50 69.99 139.98 209.97 279.96 349.95 419.94 489.93 559.92 629.91 699.90 769.89 839.88 909.87 979.86 1049.9
1.75 42.41 84.83 127.24 169.66 212.07 254.49 296.90 339.32 381.73 424.15 466.56 508.98 551.39 593.81 636.22
2.00 29.16 58.32 87.47 116.63 145.79 174.95 204.11 233.26 262.42 291.58 320.74 349.90 379.05 408.21 437.37
2.25 21.53 43.06 64.59 86.12 107.65 129.18 150.72 172.25 193.78 215.31 236.84 258.37 279.90 301.43 322.96
2.50 16.66 33.32 49.98 66.64 83.30 99.96 116.62 133.28 149.94 166.60 183.26 199.92 216.58 233.24 249.90
2.75 13.33 26.65 39.98 53.31 66.64 79.96 93.29 106.62 119.95 133.27 146.60 159.93 173.25 186.58 199.91
3.00 10.93 21.86 32.80 43.73 54.66 65.59 76.52 87.46 98.39 109.32 120.25 131.19 142.12 153.05 163.98
3.25 9.15 18.29 27.44 36.58 45.73 54.87 64.02 73.16 82.31 91.46 100.60 109.75 118.89 128.04 137.18
3.50 7.77 15.55 23.32 31.09 38.87 46.64 54.41 62.19 69.96 77.73 85.51 93.28 101.05 108.83 116.60
3.75 6.69 13.39 20.08 26.78 33.47 40.17 46.86 53.56 60.25 66.95 73.64 80.34 87.03 93.73 100.42
4.00 5.83 11.66 17.49 23.32 29.15 34.98 40.81 46.64 52.47 58.30 64.13 69.96 75.79 81.62 87.45
4.25 5.12 10.25 15.37 20.50 25.62 30.75 35.87 41.00 46.12 51.25 56.37 61.50 66.62 71.75 76.87
4.50 4.54 9.08 13.63 18.17 22.71 27.25 31.80 36.34 40.88 45.42 49.97 54.51 59.05 63.59 68.14
4.75 4.06 8.11 12.17 16.22 20.28 24.33 28.39 32.44 36.50 40.55 44.61 48.66 52.72 56.77 60.83
5.00 3.64 7.29 10.93 14.57 18.22 21.86 25.50 29.15 32.79 36.43 40.08 43.72 47.36 51.01 54.65
5.50 2.99 5.98 8.97 11.96 14.95 17.94 20.93 23.91 26.90 29.89 32.88 35.87 38.86 41.85 44.84
6.00 2.50 5.00 7.49 9.99 12.49 14.99 17.49 19.99 22.48 24.98 27.48 29.98 32.48 34.97 37.47
6.50 2.12 4.24 6.36 8.48 10.60 12.72 14.84 16.96 19.08 21.20 23.32 25.44 27.55 29.67 31.79
7.00 1.82 3.64 5.46 7.29 9.11 10.93 12.75 14.57 16.39 18.21 20.04 21.86 23.68 25.50 27.32
7.50 1.58 3.16 4.75 6.33 7.91 9.49 11.08 12.66 14.24 15.82 17.41 18.99 20.57 22.15 23.74
8.00 1.39 2.78 4.16 5.55 6.94 8.33 9.71 11.10 12.49 13.88 15.27 16.65 18.04 19.43 20.82

The following tables illustrate the relation between GE Multilin MM2 and MM3 curve
numbers, NEMA curves, and the MM200 curve multipliers.
Table 2: MM2 and MM3 curve numbers and MM200 curve multipliers
MM2 and MM3 curve number 1 2 3 4 5 6 7 8
MM200 curve multiplier 1 2 3 4 7 9 12 15

Table 3: NEMA curves and MM200 curve multipliers

NEMA curve Class 10 Class 15 Class 20 Class 30
MM200 curve multiplier 4 6 8 12

Cooling rate The model causes the thermal capacity used to decrease exponentially when the steady-
state thermal capacity used value is less than the actual thermal capacity used. This
simulates motor cooling. As a stopped motor normally cools significantly slower than a
running motor, the relay has two cooling time constant setpoints, one used when the
motor is off (stopped, tripped, locked out, pre-contactor, etc.), the other used when the
motor is on (starting, running, stopping). In each case, the time constant is time in minutes
for the motor temperature to cool by 63% of the difference between the initial
temperature and ambient temperature.

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CHAPTER 4: SETPOINTS PROTECTION ELEMENTS

Figure 6: Thermal model cooling following a trip at t = 0

100%

75%

63%
Thermal capacity used
50%

Cool time constant = 30 minutes

25%

0%
0 30 60 90 120 150 180
Time (minutes)
888732A1.CDR

Thermal protection Thermal model operation is a serious event, and therefore results in a lockout that can not
reset be reset until the motor has cooled, except with a level 2 or level 3 security login. A setpoint
is available that controls whether lockout persists until the motor has cooled until the
thermal capacity used reaches 15% (approximately twice the cool time stopped setpoint),
or until the relay estimates based on learned thermal capacity used on start that the motor
has cooled sufficiently for a successful restart. For the latter, a 2% safety margin is
included. While in lockout, the motor can not be started via the MM200.
If the motor is re-started it may re-trip quickly. Should process interruption concerns
outweigh the probable damage to the motor that early starting would incur, an external
circuit should be added that bypasses the relay to directly close the motor contactor.
A second setpoint controls whether once the motor has cooled as described above, the
lockout is replaced with a trip that can be manually reset without security login, or
alternatively the condition is fully reset allowing immediate restart.

Thermal protection The following setpoints are available for thermal protection.
setpoints Standard Overload Curve
Range: 1 to 15 in steps of 1
Default: 4
This setpoint specifies the standard overload curve to the thermal characteristics of the
protected motor.
Overload Pickup Level
Range: 1.01 to 1.25 X FLA
Default: 4
This setpoint specifies the Overload Pickup Level for the unit to start.
Hot/Cold Safe Stall Ratio
Range: 1 to 100% in steps of 1
Default: 75%
This setpoint is used to control the hot/cold bias and RTD bias features. It specifies the
ratio of the rated hot safe stall time to the rated cold safe stall time as a percentage. A
value of “100%” disables the hot/cold bias feature.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–17

PROTECTION ELEMENTS CHAPTER 4: SETPOINTS

Cool Time Constant Stopped

Range: 1 to 1000 minutes in steps of 1
Default: 30 minutes
This setpoint specifies the cooling time constant used by the thermal model when the
motor is stopped. Enter the time in minutes for the temperature to cool by 63% of the
difference between the initial value and ambient when the motor is stationary.
Cool Time Constant Running
Range: 1 to 1000 minutes in steps of 1
Default: 15 minutes
This setpoint specifies the cooling time constant used by the thermal model when the
motor is running. Enter the time in minutes for the temperature to cool by 63% of the
difference between the initial value and ambient when the motor is at speed.
Minimize Reset Time
Range: Enabled, Disabled
Default: Disabled
When set to “Disabled”, the lockout condition following a thermal protection operation
will persist until the thermal capacity used has dropped to 15%. When set to “Enabled”,
the lockout persists until the thermal capacity used has dropped to 2% below the
learned thermal capacity used at start (refer to the Thermal Start Inhibit for details).
Overload Reset Mode
Range: Manual, Auto
Default: Manual
If this setpoint value is “Auto”, an automatic reset of overload lockouts occurs after the
motor has cooled as described above. When set to “Manual”, the lockouts are replaced
with trips when the motor cools, the trips must be reset by the control panel, by remote
contact or by communications before the motor can be restarted.

Mechanical protection
The mechanical protection setpoints are divided into the following categories.
• Mechanical jam
• Undercurrent protection
• Acceleration protection
• Open control circuit trip.
The setpoints applicable to each of these categories are described in the following
sections.

Mechanical jam After the motor has started and reached a running state, the mechanical jam element (if
enabled) produces a trip when the magnitude of Ia, Ib, or Ic reaches or exceeds the pickup
level for the time specified by the Mechanical Jam Delay setpoint. This feature may be
used to indicate a stall condition when running. Not only does it protect the motor by
taking it off-line faster than the thermal model (overload curve), it may also prevent or limit
damage to the driven equipment if motor starting torque persists on jammed or broken
equipment.
The Mechanical Jam Level should be set higher than motor loading during normal
operation, but lower than the motor stall level. Normally the delay is set to the minimum
time delay or to avoid nuisance trips due to momentary load fluctuations.
The following setpoints are available for the mechanical jam element.

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CHAPTER 4: SETPOINTS PROTECTION ELEMENTS

Mechanical Jam Level

Range: 1.01 to 4.50 × FLA in steps of 0.01 or OFF
Default: OFF
This setpoint specifies the current pickup level. Set this value to “OFF” to disable
mechanical jam protection.
Mechanical Jam Delay
Range: 0.1 to 30.0 seconds in steps of 0.1
Default: 0.1 seconds
This setpoint specifies the time that the motor current must reach or exceed pickup to
generate a mechanical jam trip.

Undercurrent When the motor is in the running state, a trip or alarm will occur should the magnitude Ia,
protection Ib, or Ic fall below the pickup level for the time specified by the Undercurrent Alarm or Trip
Delay. The pickup levels should be set lower than the lowest motor loading during normal
operations.
The following setpoints are available for the undercurrent protection element.
Undercurrent Trip Level
Range: 1 to 100% of FLA or OFF
Default: OFF
This setpoint specifies the undercurrent trip pickup level. A value of “OFF” disables the
undercurrent trip function.
Undercurrent Trip Delay
Range: 1 to 60 seconds in steps of 1
Default: 1 second
This setpoint specifies the time that the motor current must be below pickup to generate
a trip.
Undercurrent Alarm Level
Range: 1 to 100% of FLA or OFF
Default: OFF
This setpoint specifies the undercurrent alarm pickup level. A value of “OFF” disables the
undercurrent alarm function.
Undercurrent Alarm Delay
Range: 1 to 60 seconds in steps of 1
Default: 1 seconds
This setpoint represents the time that the motor current must be below pickup to
generate an alarm.
For example, if a pump is cooled by the liquid it pumps, loss-of-load may mean that the
pump overheats. In this case, the undercurrent feature is enabled. To prevent motor
loading from falling below 0.75 × FLA, even for short durations, the Undercurrent Trip
Level could be set to “70%” and the Undercurrent Alarm Level to “75%”. The
Undercurrent Trip Delay and Undercurrent Alarm Delay setpoints are typically set as
quick as possible (that is, 1 second).

Acceleration The thermal model protects the motor under both starting and overload conditions. The
protection acceleration timer trip may be used to complement this protection. For example, if the
motor always starts in 2 seconds, but the safe stall time is 8 seconds, there is no point
letting the motor remain in a stall condition for the 7 or 8 seconds it would take for the
thermal model to operate. Furthermore, the starting torque applied to the driven
equipment for that period of time could cause severe damage.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–19

PROTECTION ELEMENTS CHAPTER 4: SETPOINTS

If enabled, the acceleration protection will trip if the motor stays in the starting state and
does not reach the running state by the set acceleration time.
The acceleration protection setpoints and logic are described below.
Acceleration Alarm Timer(s)
Range: 0.5 to 250.0 seconds in steps of 0.1 or OFF
Default: OFF
This setpoint specifies the maximum acceleration time before alarming. A value of “OFF”
disables the acceleration protection alarm.
Acceleration Trip Timer(s)
Range: 0.5 to 250.0 seconds in steps of 0.1 or OFF
Default: OFF
This setpoint specifies the maximum acceleration time before tripping. A value of “OFF”
disables acceleration protection tripping.
Open Control Circuit Trip
Range: Enable, Disable
Set to Enable if the MM200 should trip when an open control circuit is detected.

Electrical protection

Current unbalance When an unbalance or phase current exceeds the setpoints, an alarm or trip condition is
protection generated.
The calculation method is as follows:
|IM - IAV|
If IAV ≥ IFLA : UB% = × 100%
IAV
|IM - IAV|
If IAV ≤ IFLA : UB% = × 100%
IFLA

Where:
IAV = average phase current
IM = current in a phase with maximum deviation from IAV
IFLA = MOTOR FULL LOAD CURRENT setpoint
Current Unbalance Trip Level
Range: 4 to 40%, in steps of 1, or OFF
Default: 30%
This setpoint specifies the current unbalance trip pickup level. A value of “OFF” disables
the current unbalance trip function.
Current Unbalance Trip Delay
Range: 1 to 60 seconds in steps of 1
Default: 1 second
This setpoint specifies the time the motor unbalance current must meet or exceed
pickup to generate a trip.
Current Unbalance Alarm Level
Range: 4 to 40%, in steps of 1, or OFF
Default: 15%
This setpoint specifies the current unbalance alarm pickup level. A value of “OFF”
disables the current unbalance alarm function.

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CHAPTER 4: SETPOINTS PROTECTION ELEMENTS

Current Unbalance Alarm Delay

Range: 1 to 60 seconds in steps of 1
Default: 1 second
This setpoint specifies the time the motor unbalance current must meet or exceed
pickup to generate an alarm.

Ground fault When motor stator windings become wet or otherwise suffer insulation deterioration, low
protection magnitude leakage currents often precede complete failure and resultant destructive fault
currents. Ground fault protection provides early detection of such leakage current,
allowing the motor to be taken offline in time to limit motor damage. However, if a high
magnitude ground fault occurs that is beyond the capability of the contactor to interrupt,
it is desirable to wait for the fuses or an upstream device to provide the interruption.
The ground fault protection will alarm or trip when the ground current magnitude meets or
exceeds the pickup for the specified time, provided that the maximum phase current is less
than 8 × FLA. When used with a core-balance CT, this protection becomes a sensitive
ground fault protection.
A ground fault trip is a serious event, and therefore results in a lockout that can not be
reset until the motor has cooled except with a level 2 or level 3 security login.
Various situations (for example, contactor bounce) may cause transient ground currents
during motor starting that exceed the ground fault pickup levels for a very short period of
time. The delay can be fine-tuned to an application so it still responds very quickly, but
rides through normal operational disturbances. Normally, the ground fault time delays are
set as short as possible, that is, 0 ms. Time may have to be increased if nuisance tripping
occurs.
Special care must be taken when the ground input is wired to the phase CTs in a residual
connection. When a motor starts, the starting current (typically 6 × FLA for an induction
motor) has an asymmetrical or DC component. This momentary DC component will cause
each of the phase CTs to react differently, and cause a net current into the ground input of
the relay.
The following setpoints are available for the ground fault protection element.
Ground Trip Level
Range: 0.5 to 15.0 A in steps of 0.1 A
Default: OFF
This setpoint specifies the ground fault trip pickup level. A value of “OFF” disables the
ground fault trip function.
Ground Trip Delay on Start
Range: 0.0 to 10.0 s in steps of 0.1 s
Default: 0.0 s
This setpoint specifies the time that the motor ground fault current must meet or exceed
pickup to generate a ground fault trip when the motor is in a starting condition.
Ground Trip Delay on Run
Range: 0.0 to 5.0 s in steps of 0.1 s
Default: 0.0 s
This setpoint specifies the time that the motor ground fault current must meet or exceed
pickup to generate a ground fault trip when the motor is in a running condition.
Ground Alarm Level
Range: 0.5 to 15.0 A in steps of 0.1 A, when Ground CT type is set to "CBCT 2000:1"
Default: OFF
The setpoint specifies the ground fault alarm pickup level. A value of “OFF” disables the
ground fault alarm function.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–21

PROTECTION ELEMENTS CHAPTER 4: SETPOINTS

Ground Alarm Delay on Start

Range: 0 to 60 s in steps of 1 s
Default: 10 s
This setpoint specifies the time that the motor ground fault current must meet or exceed
pickup to generate a ground fault alarm.
Ground Alarm Delay on Run
Range: 0 to 60 s in steps of 1 s
Default: 10 s
This setpoint specifies the time that the motor ground fault current must meet or exceed
pickup to generate a ground fault alarm.

Load increase alarm The load increase alarm is used to alarm abnormal load increases that may indicate
problems with the process. An alarm is enabled only after the acceleration phase is
complete and the motor has entered the running phase, and then only if the average
current has fallen below the set pickup. Once enabled, the alarm is generated when the
current exceeds the set pickup, and automatically resets when the current has subsided.
The following setpoints are available.
Load Increase Alarm Level
Range: 50 to 150% of FLA in steps of 1, or OFF
Default: OFF
This setpoint specifies the load increase alarm pickup level. A value of “OFF” disables the
load increase alarm.

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CHAPTER 4: SETPOINTS CONTROL ELEMENTS

Control elements
Auto/manual control
The auto/manual control element manages the auto/manual control mode, consolidates
the start A, start B and stop controls from their various sources, and applies auto/manual,
test switch and permissive supervision.
The MM200 has four possible sources of start A, start B and stop controls:
• Communications: Controls received over a serial data link - Modbus, DeviceNet,
Profibus and/or Modbus TCP. Communications controls are not differentiated based
on port or protocol.
• Hard-wired: Controls received typically via contact inputs from a PLC or DCS.
• Field: Controls received typically via contact inputs from pushbuttons or switches
located adjacent to the controlled equipment.
• MCC: controls received from the control panel of the MM200.
Communications and hard-wired controls are considered to be auto controls, and are
inhibited unless auto mode is on. Likewise, field and MCC controls are considered to be
manual controls, and are inhibited unless manual mode is on. Each source may also have
a contact input assigned to permissive supervision, which enables that source when on.
Table 4: Auto/manual control sources
Control source Supervision
Communications Auto Comms permissive
Hard-wired Auto Hard-wired permissive
Field Manual Field permissive
MCC Manual MCC permissive

The MM200 may also be set to always honor stop controls, regardless of auto/manual
mode and permissive supervision (default).
The auto/manual control element also drives a control source active indicator for each
source on the front panel display (if equipped) that shows the user exactly which control
sources have both the correct auto/manual mode on and have their permissive configured
and on.
The auto/manual control element includes non-volatile latches that hold the auto and
manual mode states. Besides supervising controls from the sources, the latches drive auto
and manual indicators on the MM200 control panel. The latches can be controlled either by
an external auto switch contact or by the control panel.
• When configured for Auto/Man switch contact, auto is on when the contact is closed
energizing the input, and manual is on when the contact is open.
• When a switch contact is configured for auto/manual, the front panel auto/manual
pushbuttons are inoperative. When no switch contacts are configured, but the MCC
Auto/Manual Key setpoint is “Enabled”, the control panel auto and manual keys will
switch the mode between auto and manual.
• When no input is configured for auto or manual, and the MCC Auto/Manual Key
setpoint is “Disabled”, both auto and manual modes are set on.
The Auto and Manual modes are temporarily forced to settable states when the test switch
is on.
The following setpoints are available for the auto/manual control element.

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CONTROL ELEMENTS CHAPTER 4: SETPOINTS

Comms Start Ctrl

Range: Enabled, Disabled
Default: Disabled
Sets whether start commands are accepted via communications.
Comms Stop Mode
Range: Always Enabled, Follow Ctrl Mode
Default: Always Enabled
If set to “Always Enabled”, communication stops will always be honoured, irrespective of
the Comms Start Ctrl setpoint and auto/manual mode. If set to “Follow Ctrl Mode”,
communication stops will be supervised by auto/manual and by communication
permissive in the same manner as the starts.
Hard Wired Start Ctrl
Range: Enabled, Disabled
Default: Disabled
Sets whether start commands are accepted from hard wired start contact inputs.
Hard Wired Stop Mode
Range: Always Enabled, Follow Ctrl Mode
Default: Always Enabled
If set to “Always Enabled”, hard-wired stops will always be honoured, irrespective of the
Hard Wired Start Ctrl setpoint, auto/manual mode and permissive. If set to “Follow Ctrl
Mode”, hard-wired stops will be supervised by auto/manual and by hard-wired
permissive in the same manner as the starts.
Hard Wired Stop Actn
Range: Stop, Trip
Default: Stop
Defines whether hard wired stop control trips (reset required to clear) or stops (no reset
required).
Hard Wired 2W/3W
Range: 2W, 3W
Default: 3W
The setpoint is for two-wire or three-wire control selection. If in the two-wire mode, all
hard-wired start contact inputs being open will be treated as a hard-wired stop control.
For reversing and two-speed starter configurations, both start inputs open is treated as
a hard-wired stop control.
Field Start Ctrl
Range: Enabled, Disabled
Default: Disabled
Sets whether start commands are accepted from field start contact inputs.
Field Stop Mode
Range: Always Enabled, Follow Ctrl Mode
Default: Always Enabled
If set to “Always Enabled”, field stops will always be honoured, irrespective of the Field
Start Ctrl setpoint, auto/manual mode, and permissive. If set to “Follow Ctrl Mode”, field
stops will be supervised by auto/manual and by field permissive in the same manner as
the starts.
Field Stop Action
Range: Stop, Trip
Default: Stop
Defines whether field control trips (reset required to clear) or stops (no reset required).

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CHAPTER 4: SETPOINTS CONTROL ELEMENTS

Field 2W/3W
Range: 2W, 3W
Default: 3W
Two-wire or three-wire controls selection. If in the two-wire mode, all field start contact
inputs being open will be treated as a field stop control. For reversing and two-speed
starter configurations, both start inputs open is treated as a field stop control.
MCC Start Ctrl
Range: Enabled, Disabled
Default: Enabled
Sets whether start commands are accepted from the control panel.
MCC Stop Mode
Range: Always Enabled, Follow Ctrl Mode
Default: Always Enabled
If set to “Always Enabled”, control panel stops will always be honoured, irrespective of
the MCC Start Ctrl setpoint, auto/manual mode, and permissive. If set to “Follow Ctrl
Mode”, control panel stops will be supervised by auto/manual and by MCC permissive in
the same manner as the starts.
MCC Stop Action
Range: Stop, Trip
Default: Stop
Defines whether MCC control trips (reset required to clear) or stops (no reset required).
Test Auto Mode
Range: On, Off, Unaffected
Default: Off
Sets whether, when the test switch is on, the auto mode is forced on, forced off, or is
unaffected.
Test Manual Mode
Range: On, Off, Unaffected
Default: On
When the test switch is on, this setpoint determines if the manual mode is forced on,
forced off, or is unaffected.

Stop/start control element

An external stop sequence has occurred if the relay detects that either contactor A or
contactor B has dropped out without receiving a stop command. If the External Stop
Action setpoint is programmed as “Stop”, the relay will accept this as a stop control and
display the External Stop message. If this setpoint is set to “Trip”, the relay will treat this as
an emergency stop trip. This trip condition must be reset before the motor can be
restarted.
Most protection and control elements in this relay are sensitive to whether the motor is
stopped, starting, or running. These include the jam, and acceleration protection, and the
thermal start inhibit elements.
Traditionally, the motor is deemed to have entered the starting state when the motor
current changes from zero to some measurable value, and to have entered the running
state when the current having increased above FLA then subsides below FLA. This
algorithm is satisfactory for most applications. The current profile of full voltage across-
the-line starters for instance typically goes from zero to 6 × FLA within a cycle of the
contactor closing, and then decays exponentially until it reaches 1 × FLA just before
reaching normal operating speed.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–25

CONTROL ELEMENTS CHAPTER 4: SETPOINTS

The traditional algorithm would detect the start (if it is fast enough), but may or may not
detect the running state that follows. Even if it does detect the running state, as it is an
atypical start, the learned values such as learned acceleration time would be corrupted.
The MM200 employs an improved starting and running state detection algorithm.
Normally, it declares starting when either contactor A or contactor B closes. Running is
declared when either contactor has been closed for one second, and then current is found
to be below 1 × FLA. This provides equivalent functionality to the traditional algorithm..
If an A or B motor contactor is externally energized, the relay will treat this as a start A or B
control, and display an External Start A Alarm or an External Start B Alarm message.
The stop/start control element also consolidates the various start and stop signals for the
convenience of other elements.
The following setpoint is available:
External Stop Action
Range: Stop, Trip
Default: Stop
This setpoints selects whether an external stop is considered to be an emergency stop
(reset required to clear) or a stop control (no reset required).

Power failure restart

The Power Failure Restart element (PFR) provides a relay-initiated undervoltage motor
restart after a momentary power loss (dip).
The undervoltage is detected by a digital input associated with an External Voltage Relay.
When the auxiliary voltage supply drops below the pre-set low voltage level, the motor
contactor(s) are de-energized until the dip is ended as indicated by supply recovery to the
pre-set high voltage level.
• The motor will be switched back to its previous status if the voltage returns within the
“Power Failure Time”. This can either take place immediately or be further delayed
(Power Failure Restart Time).
If the motor was running at the time the dip occurred, a forced restart will occur as soon as
the relay detects healthy auxiliary voltage and the restart time delay has expired.
If the motor was not running at the start of the dip, no restart sequence will be initiated.
Start controls are ignored while the PFR delay is timing out. While the PFR timer is counting
down, the status will change to “PFR Pending”. During PFR Pending, any stop or trip will
immediately cancel the restart sequence.
With MM200 power supply voltage derived from the incoming motor supply, the MM200
will experience the same interruption as the motor. The MM200 has not been designed to
ride through power outages of up to 200ms and the power failure restart is affected by this
condition, so with an outage higher than 200 ms the relay will be powered off. When the
control supply recovers, the relay will not initiate any motor start.
PFM Function
Range: Enabled, Disabled
Default: Disabled
Enables the Power Failure Restart function.
Power Failure Time
Range: 0 to 30 s in steps of 1 s
Default: 0.0 s
Sets the maximum measured duration of power failure time. If the mains voltage returns
within the Power Failure Time, the motors that were energized before the power failure
are automatically reconnected.

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If the mains voltage does not return within this period of time, the above motors remain
disconnected and a “Trip – Power Failure” fault is generated. Once the mains voltage has
returned, the trip will be maintained until a reset command is received.
Restart Time Delay
Range: 0 to 300 s in steps of 1 s
Default: 0.0 s
After the mains voltage returns, this setting defines the time delay before the motor is
restarted.
This function restarts the motor based on the stages of the startup sequence provided by
NOTE:

the starter type selected.

NOTE

Figure 7: Power failure restart logic diagram

RESET PFM

888752A1.CDR
OR
RESTART

TRIP - POWER FAILURE

PFM STOP

0
RESTART TIME DELAY
PFM in PROGRESS

SETTING

tpu

Latch
R
S
AND

t1 = PF time

RESET
time > t1
time < t1
R
S
Hold all timers, counters, and latches in reset state

SETTING
AND

RESET
RUN
OR
RESET PFM
= Enabled
= Disabled

EXCEPT PFM
ANY STOP
RUNNING
PFM FUNCTION

PFR INHIBIT

UV INPUT
SETTING

INPUT

INPUT

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–27

CONTROL ELEMENTS CHAPTER 4: SETPOINTS

Figure 8: Undervoltage restart control logic diagram

CONTACTOR A STATUS

AND AND PFR A

AND AND PFR STOP

PFM IN PROGRESS

RESTART

CONTACTOR A STATUS

AND PFR PENDING

AND

OR
S

AND PFR B
AND

888753A1.CDR

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 Digital Energy
Multilin

MM200 Motor Management System

Chapter 5: Diagnostics

Diagnostics

The diagnostics pages display typical diagnostic information, including learned data,
phasors, system counters, and system information. In the event of a trip or alarm, the
diagnostic pages are often very helpful in diagnosing the cause of the condition.

Digital counters
Trip counters are typically used for scheduling inspections on equipment, for performing
qualitative analysis of system problems, and for spotting trends. Several general counters
are also available.
When the relay is powered off, the counter values are stored in non-volatile memory.
NOTE:

NOTE Total Number of Trips, Incomplete Sequence Trips, Overload Trips, Mechanical Jam
Trips, Undercurrent Trips, Current Unbalance Trips, Ground Fault Trips, Motor
Acceleration Trips.
Range: 0 to 65535 trips in steps of 1
These values display a breakdown of number of trips by type. When the total number of
trips for any counter exceeds 65535, that counter is reset to 0.
Number of Motor Starts
Range: 0 to 65535 starts in steps of 1
This value displays the number of accumulated motor starts or start attempts. This value
may be useful information when troubleshooting a motor failure. When this counter
exceeds 65535 starts, it will reset to 0.
Motor Running Hours
Range: 0 to 100000 hours in steps of 1
The motor running hours timer accumulates the total running time for the motor. This
value may be useful for scheduling routine maintenance. Counter will roll over to zero
after range is exceeded.
Motor Stopped Hours
Range: 0 to 100000 hours in steps of 1
The motor stopped hours timer accumulates the total stopped time for the motor. This
value may be useful for scheduling routine maintenance.

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 5–1

LEARNED DATA CHAPTER 5: DIAGNOSTICS

Learned data
The MM200 learns the acceleration time, the starting current, the starting capacity, and
the average motor load during motor starts. This data is accumulated based on the last
five successful starts.
Learned Acceleration Time
Range: 0.0 to 200.0 ms in steps of 0.1 s
If motor load during starting is relatively consistent, the learned acceleration time may
be used to fine tune the acceleration protection. Learned acceleration time will be the
greatest time of the last five successful starts. The time is measured from the transition
of motor current from zero to greater than overload pickup, until line current falls below
the overload pickup level.
Learned Starting Current
Range: 0.0 to 10000.0 A in steps of 0.1 A
The learned starting current is measured 200 ms after the transition of motor current
from zero to greater than overload pickup. This should ensure that the measured current
is symmetrical. The value displayed is the average of the last five successful starts. If
there are less than five starts, a value of 0 seconds will be averaged in for the full five
starts.
Learned Starting Capacity
Range: 0 to 100% in steps of 1
The learned starting capacity is used to determine if there is enough thermal capacity to
permit a start. If there is not enough thermal capacity available for a start, a start inhibit
will be issued. Starting will be blocked until there is sufficient thermal capacity available.

5–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 Digital Energy
Multilin

MM200 Motor Management System

Chapter 6: Communications

Communications

Communications interfaces
The MM200 has two communications interfaces:
• RS485
• Fieldbus
Setpoint changes related to RS485, DeviceNet, and Profibus, require a power cycle to be
NOTE:

activated.
NOTE

External power must be present on the Fieldbus port at power-up, in order to correctly
NOTE:

initialize.
NOTE

For full details, please refer to the MM200 Communications Guide, to be found on the GE
NOTE:

Multilin web site.

NOTE

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 6–1

COMMUNICATIONS INTERFACES CHAPTER 6: COMMUNICATIONS

6–2 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL

 GE Consumer & Industrial
Multilin

MM200 Motor Management System

Appendix

Appendix

A.1 Change notes

A.1.1 Revision history

Table A–1: Revision History

MANUAL P/N RELEASE DATE

1601-9034-A1 21 December 2007
1601-9034-A2 05 February 2008
1601-9034-A3 27 July 2008
1601-9034-A5 31 August 2009
1601-9034-A6 23 July 2010

Table A–2: Major Updates for MM200-A6

Section/Page Number CHANGES

Manual revision number from A5 to A6
Ch 1 New Specifications section - User Interface

Table A–3: Major Updates for MM200-A5

Section/Page Number CHANGES

Manual revision number from A4 to A5
3.2 New section - Graphical Display Page Hierarchy
4.4.3 New section - Power Failure Restart

MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL a–3

 APPENDIX

Table A–4: Major Updates for MM200-A3

Section/Page Number CHANGES

Manual revision number from A2 to A3
Ch1 - MM200 Order Codes Add HI power supply option
All relevant figures Add HI input connections
p1-2 Change line diagram
Add HI power supply info to Input and Power Supply
p1-5, 1-6
Specifications
Change Environmental Specifications in accordance with
p1-7
UL requirements
p2-10 Add power supply labeling

Table A–5: Major Updates for MM200-A2

Section Number CHANGES

Manual revision number from A1 to A2
Ch1 - MM200 Order Codes Change Layout of Order Table
Ch1 - Type Tests Corrections: RH Cyclic, Comp. Temperature/Humidity

a–4 MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL