Installation, Operation and Maintenance Manual

Total Control Board

(From October 2007)

Publication 2949A (GB) 1108

Freedom from patent restrictions must not be assumed.
Installation, Operation and Maintenance Manual

IMPORTANT

PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLATION

THIS MANUAL SHOULD BE READ IN CONJUNCTION WITH THE RESPECTIVE

PRODUCT MANUAL AND CIRCUIT DRAWINGS SUPPLIED WITH THE
AFTERFILTER

EXPLANATION OF SYMBOLS USED

Refers to special information regarding the most efficient use.

Refers to special information directed towards preventing damage.

Refers to special information designed to prevent injury or extensive damage.

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Installation, Operation and Maintenance Manual

TABLE OF CONTENTS
1. Introduction 5
2. Delivery and MOUNTING INSTRUCTIONS 7

2.1. Enclosure location .......................................................................................... 7

2.2. Pneumatic installation .................................................................................... 7
3. Electrical installation 8

3.1. Main switch IP65 ............................................................................................ 8

3.2. Motor connection............................................................................................ 8
3.3. Supply voltage: terminals 1 and 2 .................................................................. 9
3.4. RS-485 Bus: terminal 3–5 .............................................................................. 9
3.5. Motor protection: terminals 25, 28 .................................................................. 9
3.6. Optional isolation amplifier for thermistor protection and/or bursting disc:
terminals 6–9 .......................................................................................................... 10
3.7. Connections for Fan starters : terminals 14–17 (+ 12 & 13 for ECB 4 units) 10
3.8. Alarm relay: terminals 18–20........................................................................ 10
3.9. Remote start/stop push buttons: terminals 21–23 ........................................ 10
3.10. Input external on: terminal 24, 28 ............................................................. 10
3.11. Outputs for remote control lamps: terminals 29–31 .................................. 11
3.12. Optional analogue output: terminals 32–34 .............................................. 11
3.13. Valve outputs: terminals V1–V16 – Single module systems ..................... 11
3.14. Valve outputs: terminals V1–V16 – Multiple module systems................... 11
3.15. Rotary switches “Slave address” and “mode”. .......................................... 11
3.16. Programmable inputs................................................................................ 12
3.17. Programmable outputs ............................................................................. 12
4. Pre-Start-up checklist 14
5. Operation 14

5.1. Single Fan Afterfilter Systems ...................................................................... 14

5.2. Multiple Fan Units e.g. ECB Units ................................................................ 14
5.3. Status LED’s ................................................................................................ 15
6. Using the menu system 16

6.1. Display mode ............................................................................................... 16

6.2. Setting mode ................................................................................................ 16
7. Parameter/Memory fields description 18

7.1. P00 Setting Pin code.................................................................................... 18

7.2. P02 Delta P Min ........................................................................................... 18
7.3. P03 Delta P Max .......................................................................................... 18
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7.4. P04 Delta P Max Alarm ................................................................................ 18

7.5. P05 Low Pressure Alarm.............................................................................. 18
7.6. P06 Off Line cleaning Cycles ....................................................................... 19
7.7. P07 Star/Triangle switch over Time.............................................................. 19
7.8. P09 Cleaning Pulse interval 1 ...................................................................... 19
7.9. P12 Cleaning valve Pulse time..................................................................... 19
7.10. P15 display Language .............................................................................. 19
7.11. P17 Function of Input I1 (terminals 26-28)................................................ 20
7.12. P18 Function of Input I2 (terminals 27-28)................................................ 20
7.13. P19 Function of output relay O1 (Relay contact cleaning on / terminals 10-
11) .................................................................................................................. 21
7.14. P20 Function of Optional output relay O2 (Relay contact start extracting
equipment / terminals 12-13) .................................................................................. 21
7.15. P22 Delta P Cleaning mode ..................................................................... 22
7.16. P26 Number of valves .............................................................................. 22
7.17. P40 Time/Date Display ............................................................................. 22
7.18. P41 Set Time and Date ............................................................................ 23
7.19. P44 Program Version ............................................................................... 23
7.20. P46 Active Pulse Display.......................................................................... 23
7.21. P48 Test Display....................................................................................... 23
7.22. P50 Back To Factory Settings .................................................................. 24
7.23. M05 Total Operating Hours ...................................................................... 24
8. ALARM MESSAGES and fault location 25
9. Maintenance 28
10. Options and features 28
11. Specifications 29
12. Spare Parts 29
13. EC DECLARATION OF CONFORMITY 31
14. CONTACT addresses 32

TABLE OF FIGURES
FIGURE 1: TCB FRONT PANEL .............................................................................................................................................................6
FIGURE 2: TERMINAL VIEW OF I/O MODULE PCB ..................................................................................................................................9
FIGURE 3: WIRING DIAGRAM MODULE PCB (DETAIL) ..........................................................................................................................10
FIGURE 4: DISPLAY PCB BATTERY ....................................................................................................................................................28

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Installation, Operation and Maintenance Manual

1. INTRODUCTION

It is a requirement of the Supply of Machinery (Safety) Regulations 1992 to provide adequate

isolation and emergency stop facilities. Due to the varied nature of site installations this cannot
be provided by Nordson but instead is the responsibility of the customer.

For installation in hazardous areas, all work must be carried out with the electrical supply
isolated or only when the potentially explosive atmosphere is not present. Checks should be
made to ensure the category of equipment is suitable for the zone in which the installation is
made.

All electrical work has to be done by a qualified electrician according to the national and local
electric codes that apply. (EN60204.1, IEC 364).

All electrical power must be shut off during installation of the Control Board.

Do not apply power on any circuits before all connections have been made.

On outside installations, always isolate power before opening the controller in wet weather
conditions.

The Control Board provides following functions:

• Starting and stopping of the cleaning function at the assigned (adjustable) set points, initiating the
individual pulses in an appropriate sequence, providing the correct time interval between pulses,
energizing the solenoid valve for the proper length of time, and also providing the logic to control
the alternate cleaning modes
• Connection of up to 32 valves in parallel mode. (16 valves for the light version - based on 22w /
Valve).
• Connection of up to 96 valves in a serial linked, multi module system. (based on 22w / Valve).
• Operation of multiple fan systems (e.g. ECB units) under either standard or ‘ATEX‘ mode
cleaning.
• An LCD-display showing all settings and alarm messages
• Push buttons to start and stop the fan
• Overload protection of the fan(s).
• A visual display of the pulse cleaning
• A bar graph indicating the differential pressure over the filter elements
• Possibility to set an adjustable off-line cleaning cycle
• A visual display of the off-line cleaning cycle when set
• ‘Stop-and-go’ or ‘stop-and-end’ setting (explanation: see chapter 7.11)
• Programmable input and output functions
• Optional remote control installation
• Optional alarm installation

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1. LCD-display 5. Push Button fan ON 9. LED ‘Off-line Cleaning’

2. ENTER-button 6. Push button fan OFF 10. LED ‘Service’
3. Scroll UP button 7. LED ‘FAN ON / PULSE’ 11. LED bar-graph indication of
4. Scroll DOWN button 8. LED ‘Cleaning stopped’ differential pressure
12. ‘Alarm’ LED
Figure 1: TCB front panel

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2. DELIVERY AND MOUNTING INSTRUCTIONS

The TCB is normally delivered pre-mounted and pre-wired with the Afterfilter. In case the TCB is
shipped loose with the unit, follow the next steps to ensure a faultless functioning of the control box.

When the Control Board is received, verify that the enclosure has not been damaged during
shipment. Compare the items received against the packing list. If you find any components that
are damaged or missing, notify the delivery company and your local Nordson representative.

Unpack the Control Board enclosure. Some items may have been shipped inside the enclosure.
Remove any packing material and dispose of it properly.

Items shipped loose with the Control Board may include:

• Slave Solenoid valve enclosures
• safety filter
• wiring diagram
• installation and operation manual
• spare fuses

2.1. Enclosure location

The enclosure of the Control Board should be mounted in a location convenient for the operator or
maintenance personnel. Since the display provides visual warning of problems and operating
conditions, much of its value is lost if the location does not permit continuous observation. For the
longest, most trouble-free operation, mount the enclosure on the unit or a wall/column with little or no
vibration.

The distance away from the Afterfilter is limited by the length of tubing and cable supplied with the
equipment (standard 10 m).

In order to get reliable signals to the sensors, the Control Board’s pneumatic sensor lines should not
exceed 20 m. Lengths in excess of this may weaken the signals to the point that they are not reliable.
Contact your Nordson representative for assistance if the sensor lines must be longer than 20 m.

If the area in which the controller is to be located is defined as a hazardous area check to ensure the
rating of the controller supplied is suitable for this area.

2.2. Pneumatic installation

The Afterfilter has tubing fittings installed in the clean air plenum and the dirty air plenum. Attach one
tube from the clean air plenum to the low pressure fitting on the enclosure (blue connector). Attach the
other tube from the dirty air plenum to the high-pressure fitting (black connector). All connections need
to be airtight.

To avoid ingress of powder into the controller pressure transducer, it is recommended that an
in-line filter is fitted between the dirty side of the collector and the controller connection. For
collectors handling explosive powders this filter must be used in both the clean and dirty side
connections.

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3. ELECTRICAL INSTALLATION

For the connections to the control box see the wiring diagram shipped inside the enclosure.

y All electrical work must be done by a qualified electrician according to the national and
local codes that apply.
y Do not attempt to wire any electrical components while energized. Electrocution
and/or damage to the components may occur.

y Connect power supply to the main switch.

y When the control board is not factory pre-wired to the Afterfilter make the other connections
to the terminals as per table on page 13.

3.1. Main switch IP65

The incoming power is connected to the terminals on the main switch inside the enclosure. On standard
power boxes the main switch will be mounted on the door. The enclosure cannot be opened without
first turning off the power to the box (main switch in position ‘0’).
A neutral terminal is provided for termination of a neutral conductor. The neutral connection is not
however required for operation of the controller.

3.2. Motor connection

For pre-wired units the motor connections will be made directly to the contactors of the fan according
the wiring diagram delivered inside the TCB enclosure.

For controllers shipped loose connections should be made to the DIN rail terminals according to the
wiring diagrams delivered inside the TCB.

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+24V DC

+24V DC

+24V DC
5 6 7 8 9 10 11 19
Fuse T 2A
12 14 16 17 18
13 15

1. Pressure transducer
7. Optional isolation amplifier (6 - 9) 14. Fan alarm (28, 25)
2. Cleaning mode switch
8. Output O1 (10,11) 15. Alarm input I1 (28, 26)
3. Module number switch
9. Optional output O2 (12,13) 16. Alarm input I2 (28, 27)
4. Valve connectors (-, V1 – V16)
10. Fan starter (14 – 17) 17. ‘In use’ lamp (31, 29)
5. Input voltage 24 VAC (1,2)
11. Alarm relay (18 – 20) 18. ‘Alarm’ lamp (31, 30)
6. RS 485 bus link (3,4,5)
12. Remote ON/OFF terminals (21- 23) 19. 4 – 20 mA
13. External ON (28, 24) terminals (32 – 34)
(Terminal Numbers)

Figure 2: Terminal view of I/O module PCB

3.3. Supply voltage: terminals 1 and 2

The supply voltage for the power box can be either 200V AC, 230V, 380V, 400V (standard TCB), 440V
or 480V, 50 or 60 Hz. A transformer with 63VA or 110VA output will be used. The electronic modules
will be supplied with pre-wired 24V AC on terminals 1 and 2.

3.4. RS-485 Bus: terminal 3–5

All TCB Circuit boards have an RS-485 interface for the communication between Display, I/O module
and slave valve modules. For multiple module systems the RS485 connection is pre-wired to socket
connections on the base of the main controller and the ends of the slave modules.

3.5. Motor protection: terminals 25, 28

An overload relay is used for the fan motor(s); the auxiliary contact will be connected to terminals 25
and 28 (multiple fan overloads will be connected in series). When the fan alarm triggers a shutdown of
the fan set, a re-start is only possible after shutting down the power to the control box and re-setting the
overload switch.

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3.6. Optional isolation amplifier for thermistor protection and/or bursting disc: terminals 6–9
An optional isolation amplifier for motor thermistor protection or bursting disk observer circuit can be
plugged into the I/O module PCB. The input connections will be made to terminal 6 and 7; at terminal 8
and 9 a potential free contact (NC) is available as output signal. This output signal can then be used for
example to initiate an alarm in the TCB by connecting it to terminals 26 and 28.

The terminals for the thermistor will be included as standard on the TCB board, but the Thermistor
module itself is an option.

3.7. Connections for Fan starters : terminals 14–17 (+ 12 & 13 for ECB 4 units)
The contactors for fan starting will be connected as follows:
Terminal 14 = Common = 24V AC Supply.
Terminal 15 = Main contactor for Star-Delta systems, Fan 1 contactor for DOL / multiple fan systems.
Terminal 16 = Star contactor for Star-Delta systems, Fan 2 contactor for multiple fan system
Terminal 17 = Delta contactor for Star-Delta systems, Fan 3 contactor for multiple fan system.

For a 4 fan system :

Terminal 12 = Common = 24V AC Supply.
Terminal 13 = Fan 4 contactor.

These connections are made at the factory.

3.8. Alarm relay: terminals 18–20

A change over contact is available on terminals 18-20. The relay is normally energised and is de-
energised when an alarm condition occurs (red alarm lamp on the display lights up) or when a power
failure occurs (see Figure 3 schematic below).

Figure 3: Wiring diagram module PCB (detail)

3.9. Remote start/stop push buttons: terminals 21–23

The external ON/OFF push button circuit can be connected to terminals 21-23. The terminals 21 and 22
are connected ex works. To start the fan set: momentarily close contact 23 and 22 (Normally open
contact). To stop the fan set: momentarily open contact 21 and 22 (normally closed contact).

3.10. Input external on: terminal 24, 28

The input terminal 24 can be used to start the filter from an external potential free contact. Closing the
contact = fan start, cleaning operational; opening the contact = fan off. In this case terminals 21 and 22
(remote stop) are bridged.

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Note all stop / start signals have equal priority and the system can be stopped and started
using the display or remote stop buttons even if terminals 24 and 28 are bridged. To restart
from terminals 24 and 28 this connection must be opened and re-closed. The fan will not start
when the main power is turned on even if 24 & 28 are bridged.

3.11. Outputs for remote control lamps: terminals 29–31

Outputs for ‘Alarm’ and ‘Fan on’-lamps; 24 V maximum load 2W.

3.12. Optional analogue output: terminals 32–34

When this option is supplied a sensor with accuracy of 2,5% will be used. The analogue output is
available at terminals 32-34. The usage of the 0.5% accuracy sensor is possible (at an additional cost).
Optionally the terminals 32-34 can be used as analogue 4-20 mA input (ATEX zone 1 or 2 applications
using external pressure transducer). Terminal 32 = Ground; 33 = in - or output signal sensor; 34 =
Common (+).

3.13. Valve outputs: terminals V1–V16 – Single module systems

The (-) connection of the valves will be made to terminals V1 to V16. The outputs have a maximum load
of 1.9A (45W at 24V DC). The outputs are short circuit and over voltage protected. Up to two solenoid
valves (22W) per output terminal can be connected, so 32 valves in total.

3.14. Valve outputs: terminals V1–V16 – Multiple module systems

Where the TCB is used to operate more than 32 valves a serial linked system is used. The master TCB
will contain an I/O module for connection of motor contactors, alarms, input and output signals. Valves
will be connected using 3 or more slave modules connected to the system using the RS-485 bus
connection. Each slave module contains an PCB pre-wired to the solenoids – max 16 / module.
The slave modules should be connected together and to the master TCB using the connecting leads
supplied.

3.15. Rotary switches “Slave address” and “mode”.

The two rotary switches “slave address” and “mode” are used to set the module number and cleaning
mode. The setting of switches is for the master and pre-mounted slave modules are done in the factory
and should not be changed. For modules assembled to the collector on site set the slave address
switches as detailed below.

Settings are as follows:

¾ Master system – Slave Address = 0,

Mode = 0
¾ Slave modules – Slave address = 1, 2, 3, …. Etc – 1 = Nearest to the master controller.
Mode = 0

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3.16. Programmable inputs

Two additional alarms / inputs can be connected to the terminals 26, 27 and 28. The function of these
alarm inputs can be selected by the software (see chapter 7.11).

Input I1 = terminals 26-28, Input I2 = terminals 27-28. Terminals bridged = no alarm / input, opening
connection = alarm / input active.

3.17. Programmable outputs

Two programmable outputs (volt free contacts) are available on terminals 10,11 & 12,13
The function of these outputs can be selected by the software (see chapter 7.13).

Default settings are :

¾ Output 1 – contact closed when cleaning is active. (Setting = 01 - Cleaning on)
¾ Output 2 – contact closed during fan operation and off-line cleaning. (Setting = 03 - Fan on +)

Note : The programmable outputs 1 and 2 are not available in multi fan ECB systems as the
relays are used to connect fan contactors in these configurations.

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Terminal Item Description Remarks

Bus Serial link connection between display and I/O
3,4,5 RS 485 Bus connection
Connection modules
Max. contact load of
Relay output signal for Thermistor circuit or bursting
Outputs 8, 9 Thermistor / bursting disc relays: 5 A - 230 VAC
disc Reed-contact.
/ 2 A - 24 VDC
The contact closes during cleaning as default Max. contact load of
10, 11 Programmable output O1 setting. relays: 5 A - 230 VAC
(Used for fan 4 in multi-fan ECB configurations) / 2 A - 24 VDC
The contact closes during fan operation and off-line
Max. contact load of
Optional programmable cleaning as default setting.
12, 13 relays: 5 A - 230 VAC
output O2 (Used for lighting circuit in multi-fan ECB
/ 2 A - 24 VDC
configurations)
Max. contact load of
18, 19, 19 Common, 18 Normally Open, 20 Normally
General alarm relays: 5 A - 230 VAC
20 Closed.
/ 2 A - 24 VDC
29, 31 ‘Fan on’ lamp Output for external control lamp “fan set operational” 24VDC, Max load 2W
30, 31 Alarm lamp Output for external control lamp “Alarm” 24VDC, Max load 2W
4 – 20 mA
32, 33, Analogue output for differential pressure (4 mA = 0 Recommended
Optional 4-20 mA output signal
34 daPa, 20 mA = 500 daPa). external resistance
150-250 Ω
1, 2 Supply voltage 24 V AC Supply voltage for PCB
Inputs Optional input for Thermistor circuit or Bursting disc Use a potential free
6, 7 Thermistor / bursting disc
reed contact. NC contact
Input to connect a remote switch (in parallel): ON Use a potential free
22, 23 Input remote switch ‘ON’
(terminal 22 holds + 24 VDC) NO contact
Use a potential free
Input to connect a remote switch (in parallel): OFF
21, 22 Input remote switch ‘OFF’ NC contact (Supplied
(terminal 22 holds + 24 VDC)
bridged ex-works)
Input to connect an external contact for fan Use a potential-free
24, 28 Input external ‘ON’
operation (terminal 28 holds +24 VDC) NO contact
Overload relay for fan motor (terminal 28 holds + 24 Use a potential free
25, 28 Fan alarm input terminal
VDC). NC contact
Programmable alarm input When contact opens an alarm message is displayed Use a potential free
26, 28
I1 as default setting. NC contact
Programmable alarm input When contact opens an alarm message is displayed Use a potential free
27, 28
I2 as default setting. NC contact
Analogue 4-20 mA input signal. 32 Ground, 33 in- or
32, 33,
Optional 4-20 mA input signal output, 34 common. (ATEX zone 1and 2 4 –20 mA
34
applications)
V1 to
Valves Valve connection - (minus) Output for the (-) connection of the valves See notes below.
V16
+ Valve connection + (plus) Output for the common (+) connection of the valves.
Terminal 14: Common connection
Max. contact load of
14, 15, Terminal 15: Mains contactor (ECB Fan 1)
Fan Contactor fan motor(s) relays: 5 A - 230 VAC
16, 17 Terminal 16: Star contactor (ECB Fan 2)
/ 2 A - 24 VDC
Terminal 17: Delta contactor (ECB Fan 3)

Terminals 8 to 20 are connected with potential-free contacts relays.

All valve connections made with the I/O module PCBs must be in numerical sequence without
gaps.

I/O module PCBs have only RS485 bus and valve connection terminals.

• Relays used for solenoid control have a maximum loadings as follows:

• 1.9A (45W at 24V DC) for master I/O module – suitable for connection of 2 valves of 22W in
parallel.
• 1.0A (25W at 24V DC) for slave I/O modules – 1 pre-connected valves of 22W only.
• Only one valve per compressed air manifold can be operated at the same time.

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4. PRE-START-UP CHECKLIST
• Make sure all connections to both air and electrical supplies are in the correct position
(when not pre-mounted).
• Recheck all the electrical and air connections for tightness.
• Verify that all electrical systems have been properly grounded.
• Verify if the motor protection switch setting matches the motor full load current.
• Check the star/delta change over delay setting. Factory default is at 5 seconds, but it can
be adjusted in the setting mode (see chapter 7.7).
• For a multi-module system ensure all interconnecting cables are in place and mode and
address switches are set correctly.

After the electrical connections are in place ensure that the door is correctly closed and
secured. The enclosure is designed so the main switch needs to be turned off before the front
panel can be opened.

5. OPERATION

5.1. Single Fan Afterfilter Systems

The TCB control board provides the output signals to the diaphragm valves mounted on the Afterfilter
and also controls the fan motor start-up procedure (and can controls other auxiliary equipment if fitted –
e.g. rotary valve, screw conveyor etc). The differential pressure measured gives a clear indication of the
pressure loss over the filter elements.

By default the unit will start pulsing when the threshold value of 80 daPa is exceeded. A cleaning cycle
normally pulses all valves of the unit in sequence with an interval of 10 seconds between every pulse.
As soon as the differential pressure drops below 40 daPa, the controller will stop the cleaning when a
full cycle is completed; this is called ‘Stop & End’ cleaning.

The LCD display will indicate the status of the unit during operation e.g. SYSTEM ON, CLEANING ON
etc. as well as indicating the current filter differential pressure.

When the differential pressure rises above 150 daPa, an alarm message will be displayed and the
alarm LED will illuminate.

The off-line clean function allows the cleaning cycle to continue for a number of cycles after the fan has
been switched off. This function is switched off by default but can be initiated by altering parameter
P06.

These factory default values can be altered when needed using the guidelines detailed in the following
chapters.

5.2. Multiple Fan Units e.g. ECB Units

The TCB control board provides the output signals to the diaphragm valves mounted inside the
Afterfilter and also controls the fan motor start-up sequence. The differential pressure measured gives a
clear indication of the pressure loss over the filter elements.

For standard units handling non-explosive powders the cleaning will, by default, start pulsing when the
threshold value of 80 daPa is exceeded. A cleaning cycle normally pulses all valves of the unit in
sequence with an interval of 10 seconds between every pulse. As soon as the differential pressure

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drops below 40 daPa, the controller will stop the cleaning when a full cycle is completed; this is called
‘Stop & End’ cleaning.

If off-line cleaning is to be carried out this is done one module at a time, the fans of the other modules
maintaining suction in their respective unit sections to avoid powder clouds being generated outside the
unit.

The number of cleaning cycles carried out depends on the pressure drop at the time the unit is stopped,
the number of cycles set and also the pressure drop across the filters during the cleaning cycle. This
sequence is designed to optimise the cleaning effectiveness while minimising air usage and cleaning
time. During off-line cleaning the display will indicate the module being cleaned and the number of
cycles remaining.

For ECB units handling explosive powders, and hence operating in a hazardous area the cleaning
sequence is carried out only when the unit is off-line using the sequence described above. Cleaning on
line is not initiated, regardless of filter differential pressure, to avoid generating a potentially hazardous
atmosphere within the collector during periods where the working area outside the unit could potentially
generate ignition sources.

The contactor provided to activate working area lighting is de-energised during off-line cleaning periods.

The software parameters controlling these cleaning sequences are factory set to correspond to the unit
type supplied and installation conditions and cannot be changed.

5.3. Status LED’s

The status LEDs on the front display panel of the TCB have the following meanings:

• SERVICE LED - When during normal operation the service LED lights up, the unit needs to be
checked by a Nordson representative.
• LED BAR GRAPH - The LED Bar graph will indicate the actual status of the filter
• ALARM LED - The Alarm LED will light up when one of the followings alarms occur:
- Fan overload protection tripped
- One or both additional alarm inputs at the module are “low”
- DeltaP Alarm
• FAN / PULSE LED - The Pulse LED will flash when a pulse is active. When the Fan set is
running, this LED will be on. When in the mean time the valves are pulsing, this LED will go out
briefly on every active pulse. When the fan is not running, the LED will be out and flash when a
pulse is active.
• PULSE STOP LED - The pulse stop LED will light up when cleaning is not active.
• OFF LINE CLEANING LED - The Off-line Cleaning LED will light up during off-line cleaning.

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6. USING THE MENU SYSTEM

The 3 keys of the control keypad (, , and ENTER) are used to navigate through the menu system of
the Total Control board filter control system. All inputs and messages can be shown on a backlit LCD
display. The menu system is deactivated during normal operation of the system. The actual values
achieved by the system and its operating messages are displayed. This is called the “Display mode”.
Changing of the current settings is done in the “setting mode”.

Button Function
 GO DOWN in the menu system
 GO UP in the menu system
ENTER the menu system or execute a function.

6.1. Display mode

During normal operation the LCD display on the TCB indicates the current differential pressure over the
filter elements. In the display mode it is possible to view all settings without the possibility to change
them. Press ENTER once and scroll up and down the menu using the  and  buttons. Following
fields can be displayed:

Level Display Description

1.1 EXIT MENU SYSTEM Press ENTER to leave the menu system

DP MIN
1.2 Show DeltaP Min value
P02 xxx daPa
DP MAX
1.3 Show DeltaP Max value
P03 xxx daPa
DP MAX ALARM
1.4 Show DeltaP Max Alarm value
P04 xxx daPa
LOW PRESS ALARM
1.5 Show the Low pressure alarm value
P05 xxx daPa
OFF LINE CLEAN C
1.6 Show number of Offline Cleaning Cycles
P06 xx CYCLES
PULSE INTERVAL 1
1.7 Show Pulse Interval
P09 xxx SEC
TEST CONTROLLER After pressing ENTER all LED’s on the control panel light up for
1.8
P48 END 10 sec.
TOTAL OPERAT H
1.9 Show total number of operating hours
M05 xxxxxx HOURS
SETTING MODE PIN
1.10 Enter PIN code to go to the Setting Mode
P00 xxxx

6.2. Setting mode

Press ENTER to activate the menu system. You are now in “Display Mode”. By pressing the  button
you will see the field “P00: Setting mode PIN”. The system will ask you for the pin code of the Setting
mode when pressing the enter button. Put in the 4 digits one by one with the buttons b and  to
increase or decrease the value and ENTER to go to the next digit and confirm. The default pin code is
9999. As soon as you enter the setting mode the yellow Service LED will start to blink.

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You can now scroll through all parameters in the setting mode. To change a parameter push the
ENTER button and the value can be changed. The new value needs to be confirmed by pushing the
ENTER button again for 2 seconds otherwise the changed value will not be saved, but instead the
message “Program cancelled” will be displayed. The values can only be changed within the range
shown in the last column. The value between brackets is the factory setting. Following fields can be
displayed:

Level Display Description Setting range

2.1 EXIT MENU SYSTEM Press ENTER to leave the menu system

DP MIN
2.2 Setting of DeltaP Min value 10 – 190 daPa (40)
P02 xxx daPa
DP MAX
2.3 Setting of DeltaP Max value 30 – 340 daPa (80)
P03 xxx daPa
DP MAX ALARM
2.4 Setting of DeltaP Max Alarm value 20 – 350 daPa (150)
P04 xxx daPa
LOW PRESS ALARM 0 – 200 daPa (0 =
2.5 Setting of Low pressure alarm value
P05 xxx daPa Alarm off)
OFF LINE CLEAN C
2.6 Setting of Offline Cleaning Cycles 0 – 15 cycles (0)
P06 xx CYCLES
ST TR SW TIME
2.7 Setting of Star/Triangle switch time 1 – 60 s (5)
P07 xxx SEC
PULSE INTERVAL 1
2.8 Setting of Pulse Interval 2 – 30 s (10)
P09 xxx SEC
CLEAN PULSE TIME
2.9 Setting of valve Pulse time 40 – 235 ms (100)
P12 xxx MS
DISPLAY LANG See chapter 7.10 for
2.10 Setting the Display Language
P15 ENGLISH different options
INPUT FUNCT I1 See chapter 7.11 for
2.11 Setting the alarm function of input I1.
P17 0 (actual Mode) different options
INPUT FUNCT I2 See chapter 7.12 for
2.12 Setting the alarm function of input I2.
P18 0 (actual Mode) different options
OUTPUT FUNCT O1 See chapter 7.13 for
2.13 Setting of function for output O1
P19 0 (actual Mode) different options
OUTPUT FUNCT O2 See chapter 7.14 for
2.14 Setting of function for output O2
P20 0 (actual Mode) different options
DP CLEAN MODE See chapter 7.15 for
2.15 Setting of the Delta P Cleaning Mode
P22_(actual Mode) different options
NUMBER VALVES
2.16 Shows the number of valves No setting possible
P26 xxx VALVES
Setting of summer and winter time or
T/D DISPLAY See chapter 7.17 for
2.17 automatic switch between summer and
P40 (Actual Mode) different options
winter
DATE
2.18 Setting of date (day / month / year)
P41 DD.MM.20YY
TIME
2.19 Setting of time
P41 hh:mm

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PROGRAM VERSION
2.19 Shows the version of the program No setting possible
P44 VXX.XX.XX/X
Shows the valve that is being pulsed.
ACTIVE PULSE
2.20 XX: Number of module No setting possible
P46 VALVE XX YY
YY: Number of valve
TEST CONTROLLER After pressing ENTER all LED’s on the
2.21
P48 END control panel light up for 10 sec
TOTAL OPERAT H Shows the total number of operating
2.22 No setting possible
M05 XXXXXX HOURS hours
FACTORY SETTINGS
2.23 Resetting all values to factory settings
P50
SETTING MODE PIN
2.24 Setting a new PIN code by the customer 4-digit code (9999)
P00 XXXX

7. PARAMETER/MEMORY FIELDS DESCRIPTION

7.1. P00 Setting Pin code
The setting mode access pin code can be changed in the setting mode. The setting mode can only be
entered by first entering the current PIN code. (Factory default PIN code = 9999)

7.2. P02 Delta P Min

DP_MIN__________
PO2_____XXX_daPa

Once the cleaning has started, if the differential pressure drops below the value DP Min for at least 10
seconds, the cleaning stops.

7.3. P03 Delta P Max

DP_MAX__________
PO3_____XXX_daPa

When the fan set is switched on, and the differential pressure increases to above the DP Max value for
at least 10 seconds, the cleaning sequence is started.
7.4. P04 Delta P Max Alarm

DP_MAX_ALARM____
PO4_____XXX_daPa

When the fan set is switched on, and the differential pressure rises above the DP Max Alarm value for
at least 10 seconds, the DP Max Alarm is displayed. The alarm can be switched off after pushing the
ENTER button when the differential pressure drops to a value at least 10% less than Delta P max. You
can switch off the Delta P max alarm function by setting its value to “0”.

7.5. P05 Low Pressure Alarm

LOW_PRESS_ALARM_
PO5_____XXX_daPa

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If one minute after the fan set is switched on, the differential pressure is less than the value of the Low
Pressure Alarm for at least 10 seconds, a Low Pressure alarm is displayed. This alarm can be
switched off after pushing the ENTER button when the differential pressure has risen above the Low
pressure alarm. You can switch off the Low pressure alarm function by setting its value to “0”.

7.6. P06 Off Line cleaning Cycles

OFF_LINE_CLEAN_C
PO6_____XX_CYCLES

Once the fan set is switched off, Off Line Cleaning is initiated and completes the number of cycles
selected here. You can choose anything between 0 and 15 cycles. If the setting is “0”, Off Line Cleaning
is switched off.

7.7. P07 Star/Triangle switch over Time

ST_TR_SW_TIME___
P07______XXX_SEC

After the fan set is switched on, outputs K1 (mains contactors) and K3 (star contactors) are activated.
At the end of the star/triangle switch-over time, output K3 (star contactor) is switched off, and output
K2 (triangle contactor) is activated with a delay of approximately 0,5 seconds.

7.8. P09 Cleaning Pulse interval 1

PULSE_INTERVAL_1
P09______XXX_SEC

Cleaning Pulse interval is the time in seconds between cleaning pulses when cleaning is operational.

7.9. P12 Cleaning valve Pulse time

CLEAN_PULSE_TIME
P12_______XXX_MS

The pulse time for the cleaning valves is the time for which the solenoids are energised each pulse.
Factory default setting is 100 milliseconds – this is suitable for most Afterfilter types however please
refer to the specific installation and operation manual for your unit type to verify the correct pulse time
and adjust this parameter if required.

7.10. P15 display Language

DISPLAY_LANG_____
P15_______ENGLISH

The display text can be output in eight different languages. The default language is English, but you can
also choose one of following languages: German, French, Dutch, Italian, Spanish, Danish, and
Swedish. The set language will be used in all menu’s and modes.

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7.11. P17 Function of Input I1 (terminals 26-28)

These terminals allow an external volt free contact to be used to signal an input to the TCB.
The contact should be a normally closed contact, so an input signal is generated when the contact
opens.
(These terminals are supplied bridged).

Parameter
Display Description
value
INPUT_FUNCT_I1__
0 P17_0__NO_FUNCT
Input I1 or I2 has no function

INPUT_FUNCT_I1__ When contact opens on Input, The system will give an Alarm
1 P17_1__ALARM. message
INPUT_FUNCT_I1__ When contact opens on Input, cleaning is activated with interval
2 P17_2_EXT_CLEA_1 1. Cleaning will be activated until the contact is closed
INPUT_FUNCT_I1__ When contact opens on Input, cleaning is activated with interval
3 P17_3_EXT_CLEA_2 2. Cleaning will be activated until the contact is closed
When contact opens on Input, cleaning remains active until a full
INPUT_FUNCT_I1__
4 P17_4_STOP_CLEAN
cleaning cycle is completed. When the contact closes again the
cleaning will not start again based on this input.
When contact opens on Input, Cleaning stops immediately and
INPUT_FUNCT_I1__ the valve number of the last activated valve is stored. When the
5 P17_5_URG_CLE_ST contact closes again the cleaning will not start again based on
this input.
When contact opens on Input, Fan and Cleaning stops
INPUT_FUNCT_I1__ immediately, the valve number of the last activated valve is
6 P17_6_STOP_ALL_ stored. When the contact closes again the fan will restart again
but the cleaning will not start again based on this input.
When contact opens on Input, Fan and Cleaning stops
immediately, the valve number of the last activated valve is
INPUT_FUNCT_I1__
7 P17_7_EMERG_STOP
stored. The system will also generate an Alarm message. When
the contact closes again the fan will NOT restart again and also
the cleaning will NOT start again based on this input.
INPUT_FUNCT_I1__ When contact opens on Input I1, the Alarm messages of Output
8 P17_8_CONF_AL_O1 O1 is cleared/confirmed
INPUT_FUNCT_I1__ When contact opens on Input I2, the Alarm messages of Optional
9 P17_9_CONF_AL_O2 Output O2 is cleared/confirmed

When the cleaning stops using input signal option 4, 5, 6 or 7, it will not restart when the input
contact closes again, but only when the differential pressure measurement or a different input
signal causes a restart.

Input functions 2 – 6 and 7 & 8 are not available when the TCB is used to operate several fans
in ECB mode.

7.12. P18 Function of Input I2 (terminals 27-28)

These terminals provide the facility for a second programmable input. Setting options and function as
for I1 - See chapter 7.11.

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7.13. P19 Function of output relay O1 (Relay contact cleaning on / terminals 10-11)

A programmable output (volt free relay) is available at terminals 10 and 11 – the contact is normally
open. This can be programmed to close under a number of different conditions as detailed in the table
below.

Parameter
Display Description
value
OUTPUT_FUNCT_O1_
0 Output O1 or O2 has no function
P19_0__NO_FUNCT
OUTPUT_FUNCT_O1_ Output relay is activated (Contacts closed) when cleaning is
1
P19_1_CLEAN_ON__ active
OUTPUT_FUNCT_O1_
2 Output relay is activated (Contacts closed) when fan is running
P19_2_FAN_ON
OUTPUT_FUNCT_O1_ Output relay is activated (Contacts closed) when fan is running or
3
P19_3_FAN_ON+__ (off line) cleaning is active
OUTPUT_FUNCT_O1_ Output relay is activated (Contacts closed) when Delta P Max
4
P19_4_DP_MAX_AL Alarm is active
OUTPUT_FUNCT_O1_ Output relay is activated (Contacts closed) when Low Pressure
5
P19_5_LOW_PRE_AL Alarm is active
OUTPUT_FUNCT_O1_ Output relay is activated (Contacts closed) when Fan Alarm is
6
P19_6_FAN_ALARM active

Alarm communication: These Alarm output relays stay active, it will only be de-activated by a
confirmation of the alarm by the ENTER button or remotely by a signal on Input I1 or I2.

These output functions are not available when the TCB is used to operate several fans in ECB
mode. (The relays are then used to power the fan contactors for fans 4 and the working area
lighting circuit).

7.14. P20 Function of Optional output relay O2 (Relay contact start extracting equipment /
terminals 12-13)
If this option is supplied a second programmable output is available at terminals 12 and 13. Details and
possible setting options are as for O1 - See chapter 7.13.

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7.15. P22 Delta P Cleaning mode

Delta P Cleaning DP_CLEAN_MODE___ Cleaning is not influenced by the differential pressure
mode P22_0_CONT_CLEAN_ measurement, but instead the valves will pulse
continuously. Differential pressure measurement and
monitoring are activated.
DP_CLEAN_MODE___ Cleaning is carried out based on the differential pressure
P22_1_STOP_&_GO measurement. On a cleaning stop command, the valve
number of the last activated valve is stored. On the next
cleaning start command, cleaning begins with the valve
with the next higher valve number.
DP_CLEAN_MODE___ Cleaning is carried out based on the differential pressure
P22_2_STOP_&_END measurement. On a cleaning stop command, cleaning
remains active until a full cycle is completed. On the next
cleaning start command, the cleaning begins with the
first valve. This is used as default setting.
DP_CLEAN_MODE___ Only differential pressure measurement and monitoring
P22_3_OFF_LINE_ are activated. All cleaning control functions based on
Delta P are deactivated. The only cleaning option is now
Off-Line Cleaning according the number of cycles
defined in parameter P06 or via an external command
on input I1 or I2.

When off line cleaning is activated (option 3), make sure that parameter P06 (number of off-
line cleaning cycles) is not set to zero. Otherwise the unit will never start to pulse clean the
filter elements.

Multi fan ECB units operating with Explosive powder will only clean off-line and P22
parameter has no effect. A number of offline clean cycles must be set – otherwise cleaning
will not be initiated.

7.16. P26 Number of valves

NUMBER_VALVES___
P26___XXX_VALVES

Configuration of the number of valves connected to the controller. When the controller starts, all
valves are addressed and checked. If a valve has failed, it is skipped.

7.17. P40 Time/Date Display

T/D_DISPLAY_____
P40_A__AUTOMATIC
T/D_DISPLAY_____
P40_0S_____FIXED
T/D_DISPLAY_____
P40_0W_____FIXED

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Setting of the current time of the system: Os = summer time, Ow = winter time, and A = Automatic
setting of summer- and wintertime depending on date and time settings in the system (Parameter
P41).

7.18. P41 Set Time and Date

DATE____________
P41___DD.MM.20YY
TIME____________
P41________HH:MM

Setting of the current time and date.

The time and date setting must be re-set after the battery has been removed / changed.

7.19. P44 Program Version

PROGRAM_VERSION_
P44_VXX.XX.XX/X

This parameter field shows the version of the software. The update and/or uploading of new
software can only be done by a Nordson representative.

7.20. P46 Active Pulse Display

ACTIVE_PULSE____
P46_VALVE__XX_YY

This parameter field shows the number of the valve that is last activated.
XX = Number of the module / YY = Number of the valve

7.21. P48 Test Display

TEST_CONTROLLER_
P48______RUNNING
TEST_CONTROLLER_
P48__________END

During this test, all LED’s on the control panel will light up for 10 seconds to be able to detect
defective LED’s.

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7.22. P50 Back To Factory Settings

FACTORY_SETTINGS
P50__________YES
FACTORY_SETTINGS
P50______CONFIRM

With this parameter the system will reset all the parameters as described in the next table to default
factory settings.

Code Description Display line Factory settings

DP_MIN__________
P02 Delta P Min 40 daPa
P02_____XXX_daPa
DP_MAX__________
P03 Delta P Max 80 daPa
P03_____XXX_daPa
DP_MAX_ALARM____
P04 Delta P Max Alarm 150 daPa
P04_____XXX_daPa
LOW_PRESS_ALARM_
P05 Low Pressure Alarm 0 daPa
P05_____XXX_daPa
OFF_LINE_CLEAN_C
P06 Off line Cleaning cycles 0
P06____XX_CYCLES
ST_TR_SW_TIME___
P07 Star/Triangle switch over time 5s
P07______XXX_SEC
PULSE_INTERVAL_1
P09 Cleaning Pulse interval 1 10 s
P09______XXX_SEC
CLEAN_PULSE_TIME
P12 Cleaning valve Pulse time 100 ms
P12_______XXX_MS
DP_CLEAN_MODE___
P22 Delta P Cleaning mode Stop and End
P22_2_STOP_&_END

The settings will be reset by pressing the enter button for more then 2 seconds. The system will ask
for a confirmation after which the enter button needs to be pressed again for more then 2 seconds.

7.23. M05 Total Operating Hours

TOTAL_OPERAT_H__
M05_xxxxxx_HOURS

Display of active operating hours (with running fan) of the control box since start-up.

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8. ALARM MESSAGES AND FAULT LOCATION

The TCB control box will display an alarm message when it detects a possibly dangerous situation
for the installation. When this happens first of all it is necessary to investigate the cause of the
alarm. After correcting the input signals to the control board, the alarm needs to be relieved by
pressing the ENTER button.

Alarm
Display line Alarm description
code
_FAN_ALARM______ Fan Alarm.
E01
E01_HH:MM_______ Fan overload contactor tripped.
Communication alarm
_COMM_ALARM_____
E02 A bus component connected is not responding (e.g. slave
E02__HH:MM_____
module, I/O Module )
Low Pressure Alarm
LOW_PRES_AL_daPA
E05 E05__HH:MM__XXX_ After fan start the differential pressure is below the set value
P05
DP_MAX_AL_(daPA) DP Max Alarm
E06
E06__HH:MM__XXX_ The differential pressure is above the set value P04
Data alarm
_DATA_ALARM__
E07 E07__HH:MM______ Data has been lost. All parameter values must be checked
and corrected if necessary
_ALARM_INPUT_I1_
E08 Error message / Alarm on Input I1
E08__hh:mm______
_ALARM_INPUT_I2_
E09 E09__hh:mm______ Error message / Alarm on Input I2

LOW BATTERY
E10 / SET TIME Low battery for real time clock or incorrect time setting.
E10__HH:MM______
DP SENSOR ALARM
E11 Wrong connection of Delta P when Delta P is smaller then 0
E11__HH:MM______
EMERG STOP Emergency stop of fan set and cleaning based on input
E12 E12__HH:MM______ signal option 7 (see chapter 7.11)
HIGH DP SYS.STOP After an off-line cleaning cycle of an ECB unit the pressure
E13
E13__HH:MM______ drop has remained above the set DP Max level.

When any of the above alarms are active it will be impossible to start up the fan set. Unless
the alarm triggers a shutdown, the fan set will keep running when it was already activated
before the alarm.

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Symptom Possible cause Action

Green power-on LED
Check supply circuit for proper voltage, fuses,
A on module PCB not Electrical supply fault.
circuit breakers etc. Replace as required.
illuminated.
Check wiring connections and replace fuse
Fuse on PCB module blown. with correct type (refer to chapter 11:
Maintenance).
Internal controller failure. Replace PCB.
Fan does not start
and LED ‘Fan on’
B Main switch on control box open Turn main switch to ON-position.
(item 7 fig. 1) is not
illuminated.
Check supply circuit for proper voltage, fuses,
Electrical supply fault circuit breakers etc. Replace as required.
The control board is
operational, but the Check the circuit and change fuse F3 (see
C Blown fuse
fan does not start. No wiring diagram supplied with TCB).
failure is indicated.
The automatic circuit Delay time between star and
Increase change-over time (see chapter 7.7)
D breaker switches off triangle is too short.
while the fan starts-up Incorrect fan overload setting Check fan overload setting
The fan only works in Change contactor K2 (see wiring diagram
Contactor K2 defective.
star operation when supplied with TCB)
E the unit is switched
on; in triangle the fan Incorrect wiring to fan Check wiring from TCB to fan
stops.
No cleaning pulses
but the LED ‘Pulse Check supply voltage (a low voltage will not
F Low supply voltage.
cleaning’ (item 7, fig. open valves but may operate LED’s normally).
1) is blinking.
Lack of compressed air for Increase compressed air pressure for manifold
cleaning. to 6 – 7 bar.
Check connections to solenoid valves in
Solenoid valves not connected enclosure or external valve enclosures. Ensure
correctly. connection plug is correctly engaged in PCB
socket.
Check for proper valve action and repair or
Solenoid valve failure
replace if necessary.
Check for proper valve action and repair or
Diaphragm valve failure
replace if necessary
Set up controller to off-line cleaning mode
G No off-line cleaning. Off-line cleaning not activated.
(refer to chapter 7.15).
Increase number of off-line cleaning cycles
Off-line cleaning cycles set to ‘0’
(refer to chapter 7.6)
Check connections to solenoid valves in
Incorrect/gaps in Solenoid valves not connected enclosure or external valve enclosures. Ensure
H
valve firing sequence. correctly. connection plug is correctly engaged in PCB
socket.
Loose connections on ΔΡ
I Incorrect ΔΡ reading. Check connections for leaks.
pressure lines.
Incorrect 4-20mA External circuit resistance too Reduce external circuit resistance
J
output. high. (recommended range 150-250Ω).
ΔΡ problem Refer to section I of Fault Location Table.

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Symptom Possible cause Action

Check compressor capacity. Check pulse
K Weak pulses. Air supply inadequate. interval – air pressure in manifold should
return to required value before next pulse.
Check supply voltage and connections to
Supply voltage too low.
Control box.
LED bar graph
L ΔΡ is below -20 daPa Reverse pressure drop tubing connections
pulsing
Close open hopper discharge or other
Lack of proper system flow or
M E 01: Fan alarm openings. Do not attempt to run without inlet
open access to ambient
ducting attached.
System airflow exceeds the rated
Adjust inlet or outlet damper(s)
flow
Faulty motor Repair or replace as required.
Automatic circuit breaker is OK
but a missing connection Check and repair the connection
between terminal 33-34
E 02: Communication RS-485 bus link between system
N Check bus link wiring.
alarm components not functioning.
Check mode and module switch settings on
Slave modules not responding
slave modules.
E 05: Low pressure
Faulty parameter settings Check parameter settings (see chapter 7.5).
O alarm
ΔΡ problem Refer to section I of Fault Location Table.
Fan motor fault Check operation of fan motor
Ducting restricted or blocked Check ducting system
Check condition of all filter elements. If
Filter elements damaged necessary replace all filter elements at the
same time.
E 06: DeltaP max
P Faulty parameter settings Check parameter settings (see chapter 7.4)
alarm
ΔΡ problem Refer to section I of Fault Location Table.
Check reverse-jet pulsing system. Increase
Low compressed air pressure
manifold pressure to 6 – 7 bar.
End of useful filter element life Replace filter elements as a complete set
Q E 07: Data alarm Data lost from memory Check all parameters and correct if necessary.
Check / Replace battery on front PCB module
E 10: Low battery / Low battery for real-time clock /
R (see picture in chapter 9). Correct type is
Check Time incorrect clock settings
CR2032. Re-set time and date.
Reverse the pressure drop tubing connections.
E 11: Negative Pneumatic tubing connections If a safety filter (Micrafilter) is present it has to
S
DeltaP measurement incorrect be in the dirty air plenum tubing (both tubes for
explosive powder applications).

E13 : High DP after High DP on ECB unit after

T Refer to section P (E06 high DeltaP) above.
ECB clean cycle cleaning

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9. MAINTENANCE
In general the TCB control box does not require any maintenance. There are some items however
that need to be checked on a regular basis:

• In-line Micrafilters in the air lines: when these are very dirty, there will be a pressure drop
over them, making the differential pressure measurement over the elements unreliable.
• Air lines and cable glands to and from control box should be checked for damage and/or
tightness. If these become loose, the values shown on the display may not be accurate,
and possibly powder or moisture will be able to enter the enclosure causing damages and
possible short-circuits.
• The clock on the front PCB has a CR 2032 battery. This battery will deplete over time and
needs to be changed as soon as the alarm message is displayed. In order to do this, the
cover over the front PCB needs to be removed first. Make sure to mount the battery with
the ‘+’ side facing to the right of the PCB.
• Re-set the time and date after replacing the battery.

Figure 4: Display PCB battery

10. OPTIONS AND FEATURES

In addition to the features already described, the Total Control Board has some extra options and
settings built-in to provide additional functions and data recording / information retrieval capabilities.
These following options can only be accessed and installed by a Nordson representative, so please
consult your local Nordson representative for more information.

• Forced cleaning time: initiates a forced cleaning cycle at a specified time interval.
• Fan run-on time: fan set remains activated during a certain period after system is switched
off.
• Optional input signal: possibility to initiate for example an alarm to stop cleaning cycle.
• Optional output signal: possibility to start for example a rotary airlock on off-line cleaning.
• DeltaP sensor type: possibility to measure DeltaP over filter elements by a 4-20 mA
pressure transducer.

• Thermistor module for fan motor protection.

• 4-20mA Output proportional to measured pressure drop.

The options mentioned above can also cause alarm messages to be displayed on the TCB.
Relieving the alarm is done in the same way by pressing the ENTER button after correcting
the input to the control board.

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11. SPECIFICATIONS

Printed Circuit Boards Data

Supply voltage 24 V (AC or DC): -0%/+10%

Back-Up Battery CR 2032. 3 Volts

Bus RS-485 bus link with 9600 Baud bit rate

Inputs Signal Potential free contacts only

Differential Pressure 0-500 daPa, Display Range 0-500 daPa. Accuracy - 2,5%
Transducer

Signal output (Option) 4-20mA output proportional to differential pressure of

0 – 500 daPa

Relay outputs Max. 2 A, 250 VAC or 1 A, 30 VDC

Valve outputs 24 V DC
Single I/O module system - Max. 1,9 A (2 x 22W Valve per output)
Slave I/O modules - Max. 1.0 A (1 x 22W Valve per output)

Fuse I/O Module T 2,0 A, 250 VAC, 5 x 20 mm

Display – PTC Device.

Dimensions Display PCB. 258 x 175 x 65 mm

I/O Module PCB 220 x 80 mm

12. SPARE PARTS

ITEM Nordson Part No.

TCB,DISPLAY,CONTROLLER,GEN5 A/F 7034116
TCB, I/O MODULE,GEN5 A/F 7034117
Combination of 1 & 2 TBC
Slave Module PCB (Valve outputs only) TBC
Solenoid valves for Slave modules 3.2mm orifice (DLM Collectors) TBC

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13. EC DECLARATION OF CONFORMITY

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14. CONTACT ADDRESS

Nordson GmbH
Heinrich Hertz Strasse 42
40699 Erkrath
Germany

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