Thomson TSC 800 V2.1 User Manual
TSC 800
TRANSFER SWITCH CONTROLLER
INSTALLATION, OPERATING &
SERVICE MANUAL
Software Version 2.2
PM049 REV 10 08/09/25
9087A – 198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110
Telefax (604) 888-3381 E-Mail: info@thomsontechnology.com www.thomsontechnology.com
9087A – 198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110
Telefax (604) 888-3381 E-Mail: info@thomsontechnology.com www.thomsontechnology.com
TSC 800 TRANSFER SWITCH CONTROLLER
TABLE OF CONTENTS
1. INTRODUCTION 1
1.1. PRODUCT REVISION HISTORY 1
1.2. GENERAL DESCRIPTION 2
2. INSTALLATION 2
2.1. GENERAL INFORMATION 2
2.2. NOTES TO INSTALLER 3
2.3. AC VOLTAGE SENSING INPUT 3
2.4. AC CONTROL POWER INPUT 3
2.5. OUTPUTS 5
2.6. SYSTEM PHASING-HIGH LEG DELTA SYSTEMS 5
2.7. EXTERNAL PANEL CONTROL WIRING 8
2.8. REMOTE START CONTACT FIELD WIRING 8
2.9. COMMMUNICATION CABLE 9
2.10. DIELECTRIC TESTING 10
3. DESCRIPTION 10
3.1. LEXAN FACEPLATE 10
3.2. PRINTED CIRCUIT BOARD 12
3.2.1. POWER SUPPLY INPUT VOLTAGE SELECTION 12
3.2.2. TERMINAL BLOCKS 13
3.2.3. DIAGNOSTIC LEDs 13
3.2.4. COMMUNICATION PORT 14
3.2.5. CONTRAST ADJUSTMENT 14
4. REMOTE COMMUNICATION 14
5. TSC 800 DISPLAY MENUS 17
5.1. SYSTEM TIME MENU 18
5.2. ATS MODE MENU 18
5.3. TSC 800 PROGRAM MENU 22
5.4. SYSTEM OPERATION MENU 22
5.5. TIMER COUNTDOWN MENUS 24
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5.6. UTILITY SUPPLY MENU 25
5.7. GENERATOR SUPPLY MENU 26
5.8. STATS MENU 27
6. OPERATING INSTRUCTIONS 28
6.1. AUTOMATIC SEQUENCE OF OPERATION 28
6.1.1. NORMAL SEQUENCE OF OPERATION (OPEN TRANSITION TRANSFER) 28
6.1.2. NORMAL SEQUENCE OF OPERATION (CLOSED TRANSITION TRANSFER) 29
6.1.3. TEST MODE SEQUENCE OF OPERATION 30
6.1.4. ABNORMAL SEQUENCE OF OPERATION 32
6.2. LCD DISPLAY OPERATION 32
6.4.1 OPERATOR INITIATED UTILITY POWER FAIL SIMULATION (LOAD TEST) 34
6.4.2 AUTOMATIC PLANT EXERCISE TEST 35
6.4.3 FOUR FUNCTION REMOTE TEST (FTS4 OPTION) 35
6.5 TRANSFER FAIL FAULT RESET 37
6.6 LAMP TEST 37
6.7 TIMER BYPASS 37
6.8 MANUAL UTILITY RE-TRANSFER 38
6.9 SERVICE ENTRANCE ATS MODE 38
6.10 PHASE BALANCE PROTECTION ALARM 38
7. PROGRAMMING INSTRUCTIONS 39
7.1. PASSWORDS 39
7.1.1. READ ONLY MODE 39
7.1.2. READ / WRITE MODE 39
7.1.3. MASTER READ / WRITE MODE 40
7.2. EXERCISE TIMER 41
7.2.1. SYSTEM TIME ROLLOVER 41
7.2.2. AUTO TEST START DAY/WEEK NUMBER 42
7.2.3. AUTO TEST START HOUR 42
7.2.4. AUTO TEST START MINUTE 42
7.2.5. AUTO TEST STOP DAY/WEEK NUMBER 42
7.2.6. AUTO TEST STOP HOUR 42
7.2.7. AUTO TEST STOP MINUTE 43
7.2.8. AUTO TEST MODE 43
7.3. SYSTEM CONFIGURATION 43
7.3.1. FIRMWARE VERSION 43
7.3.2. ATS MODE MENU PASSWORD (PW) 43
7.3.3. UTILITY FAIL CALLOUT 44
7.3.4. LOAD ON GENERATOR CALLOUT 44
7.3.5. TRANSFER FAIL CALLOUT 44
7.3.6. AUTO TEST CALLOUT 44
7.3.7. MAN TEST CALLOUT 45
7.3.8. SWITCH NOT IN AUTO CALLOUT 45
7.3.9. NODE ADDRESS 45
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7.3.10. SYSTEM VOLTAGE 45
7.3.11. VOLTAGE SENSING RATIO 45
7.3.12. SYSTEM FREQUENCY 46
7.3.13. SYSTEM PHASES 46
7.3.14. LOAD SENSING PHASES 46
7.3.15. PHASE BALANCE 46
7.3.16. PHASE BALANCE DELAY 47
7.3.17. PHASE BALANCE RETRANSFER 47
7.4. VOLTAGE SENSING 47
7.4.1. UTILITY UNDER VOLTAGE SENSOR PICKUP 48
7.4.2. UTILITY UNDER VOLTAGE SENSOR DROPOUT 48
7.4.3. UTILITY UNDER VOLTAGE SENSOR TIME DELAY (DROPOUT) 48
7.4.4. UTILITY OVER VOLTAGE SENSOR PICKUP 48
7.4.5. UTILITY OVER VOLTAGE SENSOR DROPOUT 49
7.4.6. UTILITY OVER VOLTAGE SENSOR TIME DELAY (PICKUP) 49
7.4.7. UTILITY UNDER FREQUENCY SENSOR 49
7.4.8. UTILITY UNDER FREQUENCY SENSOR TIME DELAY (DROPOUT) 49
7.4.9. UTILITY OVER FREQUENCY SENSOR 49
7.4.10. UTILITY OVER FREQUENCY SENSOR TIME DELAY (PICKUP) 49
7.4.11. GENERATOR UNDER VOLTAGE SENSOR PICKUP 49
7.4.12. GENERATOR UNDER VOLTAGE SENSOR DROPOUT 50
7.4.13. GENERATOR UNDER VOLTAGE SENSOR TIME DELAY (DROPOUT) 50
7.4.14. GENERATOR OVER VOLTAGE SENSOR PICKUP 50
7.4.15. GENERATOR OVER VOLTAGE SENSOR DROPOUT 50
7.4.16. GENERATOR OVER VOLTAGE SENSOR TIME DELAY (PICKUP) 51
7.4.17. GENERATOR UNDER FREQUENCY SENSOR 51
7.4.18. GENERATOR UNDER FREQUENCY SENSOR TIME DELAY (DROPOUT) 51
7.4.19. GENERATOR OVER FREQUENCY SENSOR 51
7.4.20. GENERATOR OVER FREQUENCY SENSOR TIME DELAY (PICKUP) 51
7.5. GENERATOR CONTROL LOGIC 51
7.5.1. COMMIT TO TRANSFER LOGIC 51
7.5.2. GENERATOR START DELAY 52
7.5.3. GENERATOR WARMUP DELAY 52
7.5.4. GENERATOR COOLDOWN DELAY 52
7.5.5. PRE-TRANSFER DELAY (LDC) 52
7.5.6. POST-TRANSFER DELAY (LDC) 53
7.5.7. TRANSFER LOGIC 53
7.5.8. LOAD ON UTILITY PROGRAMMABLE OUTPUT 54
7.5.9. LOAD ON GENERATOR PROGRAMMABLE OUTPUT 55
7.5.10. MAXIMUM FIND NEUTRAL DELAY 55
7.5.11. NEUTRAL DELAY TIMER (NDT) 56
7.5.12. NEUTRAL DELAY BYPASS 57
7.5.13. MAXIMUM TRANSFER TIME 57
7.5.14. TRANSFER FAIL 57
7.5.15. MANUAL UTILITY TRANSFER RETURN 58
7.5.16. UTILITY RETURN DELAY 58
7.5.17. MAX SYNC TIME 59
7.5.18. MAX POWER SWITCHING DEVICE OPEN TIME 59
7.5.19. PROGRAMMABLE OUTPUT 59
7.6. VOLTAGE SENSING CALIBRATION 60
7.6.1. GENERAL 61
7.6.2. UTILITY VOLTAGE CALIBRATION 62
7.6.3. GENERATOR VOLTAGE CALIBRATION 65
7.6.4. LOAD VOLTAGE CALIBRATION 67
8. TSC 800 PROGRAMMING DATA SHEETS 70
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TSC 800 TRANSFER SWITCH CONTROLLER
9. TSC 800 TYPICAL CONNECTION DIAGRAM 75
10. TSC 800 SPECIFICATIONS 76
11. TROUBLESHOOTING 77
12. REPLACEMENT PARTS 81
13. PRODUCT RETURN POLICY 81
14. NOTES 82
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1. INTRODUCTION
1.1. PRODUCT REVISION HISTORY
The following information provides an historical summary of changes made to this product
since the original release.
Software Version
TSC 800 TRANSFER SWITCH CONTROLLER
2.2 08/08/01
2.1 06/03/27
2.0 04/12/14
1.7 02/04/01
1.6 98/12/15
1.5 N/A
1.4 98/06/15
1.3 98/01/19
Enabled Clock Time Save Feature
Enhanced Phase Balance Features
New Features (Refer to Section 1.2)
Revised Transfer Fail Features and functionality
Added Remote Communication
Unreleased version
Updated Transfer Fail operation
Updated default under/over frequency setpoints, transfer fail
programmability, minor logic revisions
1.2 97/10/10
1.1 97/01/30
1.0 96/06/30
Changed Transfer Switch fail timer to 30 seconds
Upgraded Frequency setting range
Original version
Operating & Service Manual Version
Rev 10 08/09/25
Changes for Version 2.2 TSC 800 Software. Added Information for
ICS ATS Neutral delay time
Rev 9 06/04/24
Minor manual revisions for Version 2.1 TSC 800 Software
Production Release
Rev 8 06/03/27
Enhanced phase balance features
Rev 7 04/12/16
Rev 6 02/04/15
Rev 5 00/07/31
Rev 4 00/03/01
Rev 3 99/02/12
Rev 2 98/12/01
New Features (Refer to Section 1.2)
Changes for Version 1.7 TSC 800 Software
Added Four Position Test Switch Information
General revisions
Added Multi-tap information.
Added Remote Communication features per version 1.6 TSC 800
Software
Rev 1 98/01/21
Rev 0 97/06/04
General Revisions for upgraded TSC 800 software
Original release
Contact Thomson Technology, to obtain applicable instruction manuals. Soft copy of most
current version is available at www.thomsontechnology.com.
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1.2. GENERAL DESCRIPTION
The TSC 800 controller utilizes microprocessor-based design technology, which provides high
accuracy for all voltage sensing and timing functions. The TSC 800 is factory configured to
control all the operational functions and display features of the automatic transfer switch. All
features of the TSC 800 are fully programmable from the front panel LCD display and are
security password protected. The LCD display screen prompts are in plain English, providing
a user-friendly operator interface with many display options available. The microprocessor
design provides many standard features, which were previously only available as add-on
optional features.
2. INSTALLATION
TSC 800 TRANSFER SWITCH CONTROLLER
CAUTION
contents subject to damage by
STATIC ELECTRICITY
This equipment contains static-sensitive parts. Please observe the following anti-static precautions at
all times when handling this equipment. Failure to observe these precautions may cause equipment
failure and/or damage.
• Discharge body static charge before handling the equipment (maintain exposed body contact
with a properly grounded surface while handling the equipment, a grounding wrist strap
can/should also be utilized).
• Do not touch any components on the printed circuit board with your hands or any other
conductive equipment.
Do not place the equipment on or near materials such as Styrofoam, plastic and vinyl. Place the
equipment on properly grounded surfaces and only use an anti-static bag for transporting the
equipment.
2.1. GENERAL INFORMATION
NOTE:
Installations should be done in accordance
with all applicable electrical regulation
codes as required.
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TSC 800 TRANSFER SWITCH CONTROLLER
The following installation guidelines are provided for general information only pertaining to
typical site installations. For specific site installation information, consult Thomson
Technology as required. NOTE: Factory installations of THOMSON TECHNOLOGY supplied
transfer switches that have been tested and proven may deviate from these
recommendations.
2.2. NOTES TO INSTALLER
If the transfer switch has programmable/multi-tap system voltage capability (refer to electrical
schematic), confirm the transfer switch has been configured for the system voltage.
WARNING
Failure to confirm and match transfer
switch voltage with the system voltage
could cause serious equipment damage.
If the transfer switch requires reconfiguring, the TSC 800 controller will also require
reprogramming.
CAUTION!!!
Qualified personnel must complete all installation and/or service work
performed only. Failure to do so may cause personal injury or death.
2.3. AC VOLTAGE SENSING INPUT
The TSC 800 can accept direct AC voltage sensing inputs on the generator and utility supplies
from 120-600VAC (nominal). NOTE: Direct input voltage sensing can only be used when the
system utilizes a 3 phase, 4 wire distribution system which has the neutral conductor solidly
grounded. For 3 phase, 3 wire systems (i.e. no neutral) or high voltage systems, potential
transformers must be used (this is also the case where only 1 of the 2 supplies are 3 ph 3 w).
Refer to FIGURES 1-4 for voltage sensing connections.
2.4. AC CONTROL POWER INPUT
The TSC 800 is factory supplied for either 115VAC or 230VAC (nominal) control power input
voltage. Independent AC control power is required from both utility and generator supplies.
AC control power is utilized for internal TSC 800 control circuits and external control device
loads. The TSC 800 requires approximately 12VA AC power for internal control circuits. The
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TSC 800 TRANSFER SWITCH CONTROLLER
maximum external load is limited by output contact ratings (i.e. 10A resistive, 120/250VAC).
Total AC control power requirements for each supply must be determined by adding both
internal and external load requirements.
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TSC 800 TRANSFER SWITCH CONTROLLER
2.5. OUTPUTS
The TSC 800 provides the following types of output circuits:
Engine Start Contact Isolated Form C contact (10A, 250VAC Resistive)
Programmable Output Contact Isolated Form C contact (10A, 250VAC Resistive)
Transfer to Utility Output 250VAC1, 10A (Resistive) powered output contact
Transfer to Generator output 250VAC1, 10A (Resistive) powered output contact
Pre/post-transfer to utility 250VAC1, 3A (Resistive) powered output contact
Pre/post-transfer to generator 250VAC1, 3A (Resistive) powered output contact
Load on utility 250VAC1, 3A (Resistive) powered output contact
Load on generator 250VAC1, 3A (Resistive) powered output contact
1
NOTE: Output voltage is dependent upon AC control power input voltage (i.e. 120VAC or 230VAC
nominal).
Interposing relays are required between the TSC 800 outputs and the end device if loads
exceed the output current rating.
Transient suppression devices are required for all inductive devices sharing wiring or if
physically located near the transfer switch controller.
For AC operated relays or solenoids, use a suitably rated metal oxide varistor (MOV) or
capacitor/resistor suppressor. MOV selection should typically be equal to or slightly greater
than 1.3 times the nominal RMS voltage being applied to the inductive device.
NOTE: Selecting an MOV of too low a value can/will result in a sustained short circuit and
ultimately result in equipment failure.
2.6. SYSTEM PHASING-HIGH LEG DELTA SYSTEMS
When the transfer switch is connected to 3 phase 4 wire delta systems and no multi tap
power supply transformers supplied with the ATS, the “High” leg, must be connected to
Phase B of the Utility and/or Generator supply inputs to the ATS (Phase B, colored Orange
per “NEC 384-3(e)” identified as the leg with highest potential with reference to ground). This
will ensure the ATS control power that is internally connected between phase A and neutral is
maintained at 120VAC. Refer to figure below for further details.
WARNING
Failure to match correct system phasing
will result in serious damage to the
TSC 800 controller.
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TSC 800 TRANSFER SWITCH CONTROLLER
Auto matic Tra nsfer
Switch (Utility Supply)
A
(Re d)
PH A
(U A)
PH B
(U B)
B
(O ra ng e)
(High Le g)
240V 240 V
120V 12 0V
208V
N
(W hite )
PH C
(U C )
Neural
(N )
C
(Ye llow)
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TSC 800 TRANSFER SWITCH CONTROLLER
TSC 800
TB1-1
TB1-2
TB1-3
TB3-1
TB3-5
TB2-18
1
120
GRD
GRD
BA C N
VOLTAGE INPUTS
600VAC L-L, 347VAC L-N
480VAC L-L, 277VAC L-N
380VAC L-L, 220VAC L-N
208VAC L-L, 120VAC L-N
PT REQUIRED FOR TRANSFER SWITCH M ECHANISM POWER
1
(MUST BE SIZED TO SUIT POWER REQUIREMENTS).
FIG:1
3Ø, 4W 208/380/480/600VAC DIRECT SENSING
NOTE:
UTILITY VOLTAGE SENSING AND
CONTROL POWER SHOWN ONLY.
GRD
TSC 800
TB1-1
TB1-2
TB1-3
TB1-10
TB3-1
TB3-5
TB2-18
NO CONNECTION
GRD
L2L1 N
VOLTAGE INPUTS
240VAC L-L, 120VAC L-N
FIG:2
1Ø, 3W 120/240VAC DIRECT SENSING
NOTE:
UTILITY VOLTAGE SENSING SHOWN ONLY.
GRD
TSC 800
TB1-1
TB1-2
TB1-3
TB3-1
TB3-5
TB2-18
120
120
120
120
GRD
GRD
GRD
1
BA C N
SECONDARY PT VOLTAGE
208VAC L-L, 120VAC L-N
120VAC L-L, 69VAC L-N
PT REQUIRED FOR TRANSFER SWITCH M ECHANISM POWER
1
(MUST BE SIZED TO SUIT POWER REQUIREMENTS).
FIG:3
3Ø, 4W WYE PT's
NOTE:
UTILITY VOLTAGE SENSING SHOWN ONLY.
GRD
TSC 800
TB1-1
TB1-2
TB1-3
TB3-1
TB3-5
TB2-18
120
120
GRD
1
120
GRD
GRD
BA C
SECONDARY PT VOLTAGE
120VAC L-L [NO NEUTRAL]
NOTE
: ØB IS GROUNDED
PT REQUIRED FOR TRANSFER SWITCH M ECHANISM POWER
1
(MUST BE SIZED TO SUIT POWER REQUIREMENTS).
FIG:4
3Ø, 3W DELTA PT's
NOTE:
UTILITY VOLTAGE SENSING SHOWN ONLY.
REVISED
G:\ENGINEER\PRODUCTS\TSC800\852619.VSD
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97/06/27 09:12 AM
TSC 800 TRANSFER SWITCH CONTROLLER
2.7. EXTERNAL PANEL CONTROL WIRING
As a minimum, all control wiring shall conform to the local regulatory authority on electrical
installations. Specific wire sizes listed below are for typical circuits of distances up to 500ft
(150m)1, are as follows:
Utility or Generator Voltage Sensing #14 AWG (2.5mm2)
Transfer output signals #14 AWG (2.5mm2)
Remote Start Contact for Engine Controls #14 AWG (2.5mm2)
NOTE: For long control wire runs or noisy electrical environments the control wires
should be twisted & shielded with a suitable drain wire. The shielded cable drain wire
must be grounded at one end only. The drain wire grounding location may vary as
micro-processor controllers generally exist at both ends (engine generator set &
transfer switch) and one may be more susceptible depending on the level of induced
noise. The most susceptible controller will requiring the shield ground point as close
as possible to the controller. Wire runs from 500ft to 1000ft should be twisted and
shielded and increased to #12 AWG where total loop resistance is greater than 5
ohms.
1
For distances exceeding 1000ft. (300m) consult Thomson Technology
2.8. REMOTE START CONTACT FIELD WIRING
Field wiring of a remote start contact from a transfer switch to a control panel should conform
to the following guidelines to avoid possible controller malfunction and/or damage.
2.8.1. Remote start contact wires (2 #14 AWG (2.5mm2)) should be run in a separate
conduit (ferromagnetic type) and in all cases separated from any AC wiring.
2.8.2. Avoid wiring near AC power cables to prevent pick-up of induced voltages.
2.8.3. An interposing relay may be required if field-wiring distance is excessively long
(i.e. greater than 1000 feet (300m)) and/or if a remote contact has a resistance
of greater than 5.0 ohms. In extremely noisy environments, the wire run
lengths indicated may not provide reliable operation and can only be corrected
by the use of an interposing relay. The interposing relay is generally installed
at the engine controls and utilizes DC power. It is strongly suggested that the
ground return wire of the interposing relay be used for the interface to the TSC
800 remote start contact, this will ensure integrity of the DC power supply to the
engine generator set controls in the event of a shorted or grounded wire remote
start interface wire.
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TSC 800 TRANSFER SWITCH CONTROLLER
2.8.4. The remote start contact provided is voltage free (i.e. dry contact). Exposing
the remote start contact to voltage or current levels in excess of its rating will
damage the transfer controller.
2.9. COMMMUNICATION CABLE
Communication cable wiring from the controller’s communication port must be suitably routed
to protect it from sources of electrical interference. Guidelines for protection against possible
electrical interference are as follows:
• Use high quality, 8 conductor shielded cable only with drain wire grounded at the
controller end only.
• Route the communication cable at least 3 M (10’) away from sources of electrical
noise such as variable speed motor drives, high voltage power conductors, UPS
systems, transformers, rectifiers etc.
• Use separate, dedicated conduit runs for all communication cables. Do not tightly
bundle communication cables together in the conduit. Conduit should be
ferromagnetic type near sources of possible electrical interference. The entire
length of conduit should be grounded to building earth ground.
• When communication cables must cross over low or high voltage AC power
conductors, the communication cables must cross at right angles and not in
parallel with the conductors.
For additional information on protection against electrical interference, contact
THOMSON TECHNOLOGY factory.
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TSC 800 TRANSFER SWITCH CONTROLLER
2.10. DIELECTRIC TESTING
Do not perform any high voltage dielectric testing on the transfer switch with the TSC 800
controller connected into the circuit, as serious damage will occur to the controller. All AC
control fuses or control circuit isolation plugs connected to the TSC 800 must be
removed/disconnected if high voltage dielectric testing is performed on the transfer switch.
3. DESCRIPTION
The TSC 800 controller consists of two parts; a Lexan faceplate, which is mounted externally on the
transfer switch door, and a printed circuit board (PCB), which is mounted inside the transfer switch
door.
3.1. LEXAN FACEPLATE
The Lexan faceplate is shown as in FIGURE 7. The Lexan pushbuttons are connected to the
main PCB via plug-in ribbon cable. The main features of the Lexan faceplate are described
as follows with reference to FIGURE 7.
1
AUTOMATIC TRANSFER CONTROLLER
2
3
6
UTILITY
SUPPLY
MODEL TSC 800
LAMP TEST
EXIT DECREMENT INCREMENT ENTER
LOAD
54
7
GENERATOR
SUPPLY
FULL FILENAME
DRAWING1
DATE
02/04/04 11:58AM
FIGURE# 7
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TSC 800 TRANSFER SWITCH CONTROLLER
LCD viewing window. The LCD display is mounted on the main PCB which is visible
from the lexan faceplate.
EXIT pushbutton. The EXIT function is used to scroll backwards through the status
menus or programming prompts to the previous item. The EXIT function is used to
“exit” the programming menu by holding this button down for approximately 2 seconds
while in the programming mode.
DECREMENT pushbutton. The DECREMENT function is used to change a
programming value while in the programming mode. When this pushbutton is held
down, the displayed value will be “decremented” to a lower value as desired. NOTE:
The longer the pushbutton is held down, the faster the value will be decremented.
INCREMENT pushbutton. The INCREMENT function is used to change a
programming value while in the programming mode. When this pushbutton is held
down, the displayed value will be “incremented” to a higher value as desired. NOTE:
The longer the pushbutton is held down, the faster the value will be incremented.
ENTER pushbutton. The ENTER function is used to scroll forwards through the status
menus or programming prompts to the next item. The ENTER function is used to
“enter” and accept new programming or operating mode changes after a new value
has been selected (NOTE: Pressing the Exit button instead of the Enter button will
reject the newly selected value and retain the original value). NOTE: In the
programming mode, the longer the ENTER pushbutton is held down, the faster the
next menu prompt will appear.
Load on Utility supply LED light viewing window
Load on Generator supply LED light viewing window
NOTE: A lamp test feature is provided to test all LED lights as well as the LCD display.
To activate the lamp test feature, simultaneously push the INCREMENT and
DECREMENT pushbuttons. All LEDs and LCD display pixels should illuminate for
approximately 2 seconds then return to their original status. The Lamp Test feature is
also used to clear active fault conditions and return the controller to normal operation.
NOTE: An active Timer Bypass feature is provided to allow a manual initiated bypass.
To activate the feature, simultaneously push the DECREMENT and ENTER
pushbuttons. The previously bypassed timer will operate normally during its next
cycle. Refer to Timer Bypass section for related timers.
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TSC 800 TRANSFER SWITCH CONTROLLER
4 3 2 1
HD2
WATCHDOG
ENGINE START
TRANSFER
TO UTILITY
TRANSFER
TO GENERATOR
UTILIT Y SUPPLY
TRANSFORMER
CONTRAST
GENERATOR SUPPLY
TRANSFORMER
HD1
TB3
TB2
1
2
3
4
1
12
1
1
J7
COMM
RJ45
Connector
TB1
5
4
3
2
1
G;\ENGINEER\PRODUCTS\TSC800\852613b.VSD
FIGURE # 8
3.2. PRINTED CIRCUIT BOARD
18
9
8
7
6
10
The printed circuit board (PCB) is shown in FIGURE 8. The PCB contains the following user
interface items:
3.2.1. POWER SUPPLY INPUT VOLTAGE SELECTION
The controller power supply input voltage level selection is made via two connector
plugs, which are located on the PCB and are identified as HD1 and HD2. Voltage
selection plug assemblies are unique for each power supply input level voltage
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TSC 800 TRANSFER SWITCH CONTROLLER
arrangement and must match the intended voltage level. Controller failure may result
if incorrectly configured.
The TSC 800 is factory configured for a specific power supply voltage input as
designated by voltage header plugs labeled as follows:
115V - designates a 115V power supply input voltage
230V - designates a 230V power supply input voltage
3.2.2. TERMINAL BLOCKS
Three terminal blocks are located on the PCB as follows:
TB1 High voltage sensing terminal block (120-600VAC)
WARNING
Voltage sensing circuits are capable of lethal voltages while
energized. Standard safety procedures should be followed and
be performed by qualified personnel only. Failure to do so may
cause personnel injury and/or death.
TB2 Transfer control terminal block for output contacts and low voltage inputs
TB3 Transfer control terminal block for 115/230v input and output circuits
3.2.3. DIAGNOSTIC LEDs
The TSC 800 controller provides four diagnostic LED lights that are mounted on the
rear of the printed circuit board as per FIGURE 8. Their functions are described as
follows:
WATCHDOG This LED flashes on and off at irregular intervals that
indicate that the microprocessor is functioning
normally.
ENGINE START This LED is illuminated whenever the TSC 800 is
initiating an Engine Start (except when there is no
power to the TSC 800 controller).
TRANSFER TO UTILITY This LED is illuminated whenever the TSC 800 is
initiating a Transfer to Utility signal.
TRANSFER TO GEN This LED is illuminated whenever the TSC 800 is
initiating a Transfer to Generator signal.
NOTE: All LEDs will be illuminated whenever a lamp test function is performed.
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TSC 800 TRANSFER SWITCH CONTROLLER
3.2.4. COMMUNICATION PORT
A communication port is provided to interconnect to a remote communication system
for remote monitoring and control of the transfer switch. Refer to Section 4 for
additional information.
3.2.5. CONTRAST ADJUSTMENT
A contrast adjustment potentiometer is located on the PCB and is factory set for
ambient temperatures of 15° to 30° Celsius. For different ambient temperatures,
consult the factory for adjustment procedures.
4. REMOTE COMMUNICATION
The TSC 800 transfer switch controller is available with a remote communication feature. The remote
communication feature allows a TSC 800 controller to be monitored and controlled from a remote
location via serial communication link to a personal computer (PC). PC’s may be connected locally
via serial communication cable to the TSC 800 or remotely via modem and telephone systems.
Remote communication can be via customer-supplied equipment or with an external communication
interface module (CIM) as manufactured by Thomson Technology.
NOTE:
The CIM module may be located in the engine control panel
provided the maximum distance between the CIM and TSC 800
controller is not exceeded as per the following information.
Refer to the installation section of this manual for further
information.
The CIM module utilizes an internal modem and contains ModbusTM protocol to interface with different
remote monitoring software programs. Refer to separate literature for detailed information on the
CIM module.
The TSC 800 communication port utilizes a RS422 data transmission signal that is directly
interconnected to the CIM module via an 8 conductor, shielded cable with plug-in RJ45 connectors.
Refer to FIGURES 9 & 10 for detailed information on direct connected or remote connected PC
applications with CIM module.
TM
Trademarks belong to their respective parties.
NOTE: Both phone and serial communications ports cannot be connected at the same time. Doing
so will result in no communication and/or possible CIM failure.
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TSC 800 TRANSFER SWITCH CONTROLLER
CIM
Communication
Interface Module
+-
Phone
no connection
Port 2A
G
GRD
Port 3B
GRD
TSC 800
Transfer
Controller
RS 232 Signal
15M (50ft)**
maximum
cable length
null modem
connector
Personal
Computer
DC Power
8-35Vdc
**Communication cable wiring must be suitably routed to
protect it from sources of electrical interference. Refer to
installation section for further information.
8 conductor
Shielded Cable c/w
RJ45 connectors
305M
(1000ft)**
maximum
cable length
G:\ENGINEER\PRODUCTS\TSC800\852621.VSD
FIGURE #9 TSC 800 WITH CIM MODULE & DIRECT CONNECTED PC (RS232)
CIM
Communication
Interface Module
+-
Phone
Port 2A
no connection
G
GRD
Port 3B
DC Power
8-35Vdc
TSC 800
Transfer
Controller
GRD
8 conductor
Shielded Cable c/w
RJ45 connectors
305M (1000ft)**
maximum
cable length
**Communication cable wiring must be suitably routed to
Modem
Personal
Computer
protect it from sources of electrical interference. Refer to
installation section for further information.
G:\ENGINEER\PRODUCTS\TSC800\852622.VSD
FIGURE #10 TSC 800 WITH CIM MODULE & REMOTE CONNECTED PC
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TSC 800 TRANSFER SWITCH CONTROLLER
The TSC 800 RS422 communication port allows multiple TSC 800 controllers to be directly
interconnected together to form a single network system. Up to 10 TSC 800 controllers may be
interconnected to a single CIM module.
NOTE:
TSC 800 controllers and MEC 20 engine-generator controllers
may be interconnected together via the same communication
network provided the maximum number of controllers and
interconnection distances are not exceeded. For additional
information, refer to associated product instruction manuals.
Each TSC 800 controller is programmed with a unique communication node address number for the
remote communication system to reference. The network system may be connected to a local PC or
to a remote PC via telephone system and CIM module. Refer to FIGURE #11 for a typical TSC 800
network system with CIM module.
Communication
Interface Module
Phone
Port 2A
no connection
THS
Modem
**Communication cable wiring must be
suitably routed to protect it from sources of
electrical interference. Refer to installation
section for further information.
Personal
Computer
CIM
+-
G
GRD
Port 3B
DC Power
8-35Vdc
8 conductor
Shielded Cable c/w
RJ45 connectors
GRD
305M
(1000ft)**
maximum
cable length
GRD
GRD
TSC 800
Transfer
Controller
#1
TSC 800
Transfer
Controller
#2
TSC 800
Transfer
Controller
#3
To additional TSC 800 controllers
(maximum 10 total per network)
G:\ENGINEER\PRODUCTS\TSC800\852623.VSD
FIGURE #11 NETWORKED TSC 800 INTERCONNECTION DIAGRAM
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TSC 800 TRANSFER SWITCH CONTROLLER
5. TSC 800 DISPLAY MENUS
The TSC 800 contains a Liquid Crystal Display (LCD) that is visible on the front faceplate. The LCD
has pre-programmed display menus which are automatically displayed in an auto-Scrolling mode or
they may be selected manually by pressing the ENTER or EXIT pushbuttons in succession until the
desired menu is displayed. The display menu types and order in which they are programmed are as
follows:
NOTE:
The following display menus are provided in TSC 800 Software
version 2.0 (or higher).
SYSTEM TIME
STATS MENU
ATS MODE MENU
PROGRAM MENU
SYSTEM STATUS TIMER COUNTDOWN
UTILITY SUPPLY MENU
GEN SUPPLY MENU
NOTE: ATS MODE MENU access may be inhibited. Refer to programming instruction
for further details.
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TSC 800 TRANSFER SWITCH CONTROLLER
5.1. SYSTEM TIME MENU
The system time menu is used to show current system time and week number. The TSC 800
controller uses its internal time clock to reference when an automatic exercising operation (if
pre-programmed) is to occur. To change the system time, refer to the “time clock adjustment”
section of this manual. Should control power be lost to the TSC 800 controller for longer than
1-5 minutes, the time clock setting will be saved at the last time value. When the controller is
re-energized, the time setting will indicate the approximate time when the controller lost power
and then will resume keeping system Time. To re-adjust the system time clock, refer to
section 6.3.
NOTE:
The following system Time menu is provided in TSC 800
Software version 2.0 (or higher).
LCD DISPLAY
System Time
Mon
Displays the day of the week (e.g. Monday)
Displays the week number (e.g. 1-4)
Displays the current time in hours (24-hour clock): hour: min: seconds
1
12:24:31
5.2. ATS MODE MENU
The ATS Mode Menu provides manually selectable operating modes which includes
On/Offload testing features (comparable features also available via external inputs utilizing an
optional FTS4 selector switch). The Internal and External ATS Mode inputs operate in a
parallel fashion; the Mode of Operation will be determined by the highest priority selected by
either format. The priority levels are as follows (highest to lowest priority):
1) Off (Controller out of Service, no control logic applied)
2) Onload Test
3) Offload Test
4) Auto
A utility power failure will over ride all but “Off”. In the event of a generator failure and the
utility supply is available and considered normal, the ATS will return to the utility supply except
when “Off” selected.
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TSC 800 TRANSFER SWITCH CONTROLLER
NOTE:
The following test menu is provided in TSC 800 Software
version 2.0 (or higher).
The ATS Mode sub-menus are organized as follows:
ATS Mode Menu No
Yes Auto (Automatic Operation & Programmed Test Mode)
Offload Test Continuous Test
Onload Test
Off (Controller Disabled) Timed Test: Selectable
15 - 240 Min.
Automatic Return to “Auto Mode”
LCD DISPLAY
ATS Mode Menu
No
Displays two messages that may be toggled between YES or NO by pressing the
INCREMENT or DECREMENT pushbuttons. Their functions are described as follows:
No Status message only, a change is required to gain access.
Yes The required variable to be entered to gain access and proceed. If the
password protect feature is enabled a prompt will appear requiring a
level 2 or greater security code be entered to allow a read-write access.
Entering a level 1 password will only permit a read only access.
The following ATS Mode Menu options are provided:
Auto This is the Default Selection and is required to enable all automatic
features of the controller. In this mode the TSC 800 Controller will
automatically transfer the load to the appropriate source based on
availability (the Utility supply is considered the preferred source). The
TSC 800 will provide automatic timed testing if enabled in programming.
Manual testing is disabled when the Auto ATS mode is selected (NOTE:
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TSC 800 TRANSFER SWITCH CONTROLLER
the external mode inputs input will over ride ATS Mode Menu selected
Auto mode).
Offload Test When the Offload Test prompt is selected and entered, the generator
will immediately start and operate offload and will not permit a load
transfer. The test menu will display Continuous Test, to select a timed
test use the INCREMENT or DECREMENT pushbutton to scroll and
select a test duration time, press enter to accept the time (selectable in
15 minutes increments from 15 – 240 min.). The generator will remain
running until a different mode is selected and entered or the timed test
duration expires (selecting Auto will immediately terminate the test). On
expiry of the timed test the operating mode automatically reverts to
Auto.
NOTE: If the Utility supply fails during this test mode, the load will
automatically transfer to the generator if within acceptable limits.
Onload Test When the Onload Test prompt is selected and entered, the generator
will immediately start and transfer on load. The test menu will display
Continuous Test, to select a timed test use the INCREMENT or
DECREMENT pushbutton to scroll and select a test duration time, press
enter to accept the time (selectable in 15 minutes increments from 15 –
240 min.). The generator will remain running until a different mode is
selected and entered or the timed test duration expires (selecting Auto
will terminate the test after the Utility Return Timer has expired). On
expiry of the timed test the operating mode automatically reverts to
Auto.
NOTE: Should the Generator fail during the onload test and the Utility
supply is available and within acceptable limits the load will be
transferred on expiry of the generator under voltage delays.
Off The TSC 800 Controller is considered out of Service. The transfer
mechanism logic outputs are dropped out and disabled. The transfer
switch will remain in its last position and the remote start removed if
previously enabled. Manual and auto test features are disabled. This
selection takes precedence over all other modes.
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TSC 800 TRANSFER SWITCH CONTROLLER
NOTE: When this mode is selected the local generator controls should
also be placed in OFF. Failing to do can result in cyclical engine
starting. On loss of Utility supply in this state (loss of control power to
the TSC 800) the engine start contact will drop out after approximately 4
minutes resulting in generator starting and stopping (the cycle will
repeat approximately every 4 minutes after the control power is
removed).
NOTE: On return to normal service the Engine Start output is inhibited
(held up) for approximately 8 – 10 seconds. Requesting another mode
of operation during this time, which requires the engine start contact to
close, will be ignored.
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