THOMSON TS 910 Owner's Manual

TS 910

AUTOMATIC TRANSFER SWITCHES

OWNERS MANUAL

INSTALLATION, OPERATING &

9087A – 198th Street, Langley, BC Canada V1M 3B1  Telephone [phone]

Telefax [phone]  E-Mail: [e-mail]  www.thomsontechnology.com

SERVICE

PM140 Rev 0 12/02/09

TS 910 TRANSFER SWITCH

TABLE OF CONTENTS

1. PRODUCT REVISION HISTORY 1

2. EQUIPMENT STORAGE 1

3. NOTES TO INSTALLER 2

3.1. APPLICATION 2

3.2. CHECK EQUIPMENT DELIVERY 2

3.3. CHECK LINE VOLTAGE/AMPERAGE 2

3.4. INSTALLATION REQUIREMENTS 3

3.5. DIELECTRIC TESTING 5

4. GENERAL DESCRIPTION 6

4.1. PRODUCT MODEL CODE 6

4.2. TS 910 OPTIONAL ACCESSORIES 7

4.3. TYPICAL COMMISSIONING PROCEDURES 7

5. GENERAL THEORY OF OPERATION 8

5.1. AUTOMATIC SEQUENCE OF OPERATION 8

5.2. SERVICE ENTRANCE AUTOMATIC TRANSFER SWITCH OPERATION 8

6. OVER CURRENT PROTECTION 11

6.1. STANDARD TS 910 AUTOMATIC TRANSFER SWITCH 11

6.2. SERVICE ENTRANCE RATED TS 910 AUTOMATIC TRANSFER SWITCH 11

7. GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISM 11

8. TRANSFER SWITCH MECHANISM OPERATION 12

8.1. AUTOMATIC OPERATION 12

8.2. MANUAL OPERATION 12

9. RECOMMENDED MAINTENANCE 15

10. FRONT INTERIOR VIEW (2 POLE 100A STANDARD ATS) 16

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11. FRONT INTERIOR VIEW (2 POLE 100A SERVICE ENTRANCE ATS) 17

12. FRONT INTERIOR VIEW (2 POLE 200A STANDARD ATS) 18

13. FRONT INTERIOR VIEW (2 POLE 200A SERVICE ENTRANCE ATS) 19

14. FRONT INTERIOR VIEW (2 POLE 400A STANDARD ATS) 20

15. FRONT INTERIOR VIEW (2 POLE 400A SERVICE ENTRANCE ATS) 21

16. ENCLOSURE DIMENSIONS/CABLE TERMINALS 22

17. REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 22

17.1. TRANSFER SWITCH WITHSTAND CURRENT RATINGS 22

17.2. 100A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 23

17.3. 200A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 24

17.4. 400A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 25

17.5. INTERRUPTING CAPACITY CURRENT RATINGS (ALL SERVICE ENTRANCE
RATED MODELS) 25

18. TSC 9 TRANSFER SWITCH CONTROLLER 26

18.1. DESCRIPTION 26

18.2. ELECTROSTATIC DISCHARGE PRECAUTIONS 27

18.3. DIELECTRIC TESTING 27

18.4. TSC 9 FACEPLATE 28

18.5. TSC 9 FACEPLATE LIGHTS AND PUSHBUTTON OPERATION 29

18.6. TSC 9 PRINTED CIRCUIT BOARD 30

18.7. TSC 9 OPERATING INSTRUCTIONS 34

18.8. TSC 9 OPERATING MODE DESCRIPTIONS 35

18.9. TEST MODES 37

18.10. TRANSFER FAIL FAULT RESET 39

18.11. LAMP TEST 39

18.12. TIMER BYPASS 40

18.13. TSC 9 VOLTAGE SENSING 40

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18.14. TSC 9 GENERATOR FREQUENCY SENSING 40

18.15. TSC 9 CONFIGURATION INSTRUCTIONS 41

18.16. LOAD SHED 45

19. TS 910 SCHEMATIC DIAGRAM 47

20. TROUBLESHOOTING 48

21. REPLACEMENT PARTS 49

22. PRODUCT RETURN POLICY 50

23. NOTES 51

APPENDIX A – TYPICAL AUTOMATIC TRANSFER SWITCH COMMISSIONING
PRIOCEDURES 52

a) Pre-Energization Checks 52

b) Equipment Energization 53

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1. PRODUCT REVISION HISTORY

The following information provides an historical summary of changes made to this product since the

original release.

Owners Manual Version

Rev 0 12/02/09

Original release.

Contact Thomson Technology, to obtain applicable instruction manuals or if in doubt about

any matter relating to installation, operation or maintenance. Soft copy of the most current

version is available at www.thomsontechnology.com.

NOTE: All information contained in this manual is for reference only and is subject

to change without notice.

2. EQUIPMENT STORAGE

The following procedures are required for correct storage of the transfer switch prior to installation.

CAUTION!!!

Failure to store equipment under the specified environmental conditions may cause

equipment damage and void warranty.

The transfer switch shall be stored in an environment with a temperature range not exceeding -4° to

+158° Fahrenheit (-20° to +70° Celsius) and a humidity range not exceeding 5%-95% non-

condensing. Before storing, unpack sufficiently to check for concealed damage. If concealed

damage is found, notify the ATS supplier and the Carrier immediately. Repack the transfer switch

with the original packing material (or equivalent). Protect from physical damage. Do not stack. Store

indoors in a clean, dry, well ventilated area free of corrosive agents including fumes, salt and

concrete/cement dust. Apply heat as necessary to prevent condensation.

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3. NOTES TO INSTALLER

Arc Flash and Shock Hazard. Will cause severe injury or death.

Do not open equipment until ALL power sources are disconnected

This equipment must be installed and serviced only by qualified electrical

personnel utilizing safe work practices and appropriate Personal Protective

Equipment (PPE). Failure to do so may cause personal injury or death

3.1. APPLICATION

DANGER!!!!

The TS 910 Transfer Switch is designed and is Listed by Underwriters Laboratories (UL) to

Safety Standard UL 1008 for Transfer Switches for Optional Standby applications only. This

product is not intended for installation or operation on legally required standby

applications for emergency power systems as defined by the National Electrical Code.

3.2. CHECK EQUIPMENT DELIVERY

Upon delivery of the transfer switch, remove the product packaging and verify the product

has not been damaged.

WARNING: Damaged Transfer Switch equipment: Do not install or operate the transfer

switch if it appears damaged. Failure to follow these instructions can result in death,

serious injury, or equipment damage.

Check that the model number printed on the inside cover of the transfer switch is the same

as on the delivery note corresponding to the purchase order.

3.3. CHECK LINE VOLTAGE/AMPERAGE

The transfer Switch is designed for a maximum voltage of 120/240V, Single Phase 3 wire

with neutral. Verify the line voltage and amperage of the transfer switch matches the site

requirements. Note: The transfer switch can be configured for operation on 208V sources

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by way of configuration jumper. Refer to Section 18.15 CONFIGURATION JUMPERS of

this manual for further information.

WARNING: Do not install the transfer switch if either voltage or amperage does not match.

Failure to follow these instructions can result in death, serious injury, or equipment

damage.

3.4. INSTALLATION REQUIREMENTS

Before installing the transfer switch, review the following requirements:

3.4.1. Installation Codes/Permits and ATS Sizing

Suitable permits are typically required by local jurisdictions having authority prior to

installing standby generator sets and automatic transfer switches. Per NEC Article

702, Automatic transfer switches shall be sized for either a) entire load whole house,

load calculation per NEC 220, or b) Pre-selected “EM” panel(s) of load being served

or optional standby panel and transfer switch, or c) automatic load shedding feature

to reduce total load imposed on the generator, not to exceed the capacity of the

generator. The TS 910 transfer switch has automatic load shedding capabilities built-

in when load shedding control contact is connected. Refer to Load Shedding section

of this manual for further details.

3.4.2. Installation Location

The standard TS 910 transfer switch is designed for indoor wall mounting. For

applications requiring outdoor wall mounting, a NEMA 3R door kit is optionally

available. The transfer switch must be installed in an environment where the

temperature range is within +5° to +122° Fahrenheit (-15° to +50° Celsius) and

humidity range not exceeding 5%-95% non-condensing.

3.4.3. Power Cabling

All power cabling entering/exiting the enclosure must be installed in suitably sized

conduit per NEC requirements. Ampacity, type and voltage rating of current carrying

conductors must also comply with NEC requirements and local jurisdictions having

authority.

Refer to Section 16 ENCLOSURE DIMENSIONS/CABLE TERMINALS of this

manual for further details.

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3.4.4. Control Wiring

All control wiring for engine start, load shed, alarm and remote test must be installed

in separate conduits from all power cabling and must utilize suitably sized conduits

per NEC requirements. All control wiring shall be sized for minimum #14 AWG.

Control wiring type and voltage rating must also comply with NEC requirements and

local jurisdictions having authority.

3.4.5. Generator Set Automatic Operation

The TS 910 transfer switch operates in conjunction with any generator set with

remote automatic starting capabilities utilizing a 2 wire, remote start control contact

input. A dry contact is provided for remote generator starting control (contact closes
to start generator and opens to stop generator). Refer to Section 18.6.1.1 Customer

Interface Control Terminal Block of this manual for further details.

3.4.6. Upstream Overcurrent Protection (Non-Service Entrance Rated TS

910)

Non-Service Entrance Rated TS 910 transfer switch models do not contain any

integral over current protection and require upstream over current protection devices

for both Utility and Generator sources. The standard TS 910 is rated for 100%
continuous loading of all load types. Refer to Section 17 REQUIREMENTS FOR

UPSTREAM CIRCUIT PROTECTIVE DEVICES of this manual for further details.

3.4.7. Upstream Overcurrent Protection (Service Entrance Rated TS 910)

Service Entrance rated TS 910 transfer switch models contain integral over current

protection for the Utility source as standard. Service Entrance rated TS 910 transfer

switches do not contain any integral over current protection for the generator source

and requires upstream generator source over current protection. The Service

Entrance rated TS 910 is rated for 80% maximum continuous loading of all load
types. Refer to Section 17 REQUIREMENTS FOR UPSTREAM CIRCUIT

PROTECTIVE DEVICES of this manual for further details.

3.4.8. Withstand/Interrupting Current Ratings

Non-Service Entrance Rated TS 910 can withstand a maximum short circuit fault

current of 10kA (RMS, Symmetrical) @240V (100A and 200A Models) and 25kA

@240V 400A models when used with specific type/model of upstream circuit breaker.

Service Entrance rated TS 910 can interrupt a maximum short circuit fault on the

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utility source of 10kA (RMS, Symmetrical) @240V (100A and 200A Models) and

25kA @240V 400A models when used with specific type/model of upstream circuit
breaker. Refer to Section 17 REQUIREMENTS FOR UPSTREAM CIRCUIT

PROTECTIVE DEVICES of this manual for further details.

WARNING: Do not install the transfer switch on systems with higher available short

circuit current levels than listed under section “Withstand/Interrupting Current

Ratings” shown above. Failure to follow these instructions can result in death,

serious injury, or equipment damage.

3.5. DIELECTRIC TESTING

Do not perform any high voltage dielectric testing on the transfer switch with the TSC

9 controller connected into the circuit as serious damage will occur to the controller.

The control circuit isolation plug connected to the TSC 9 must be removed if high

voltage dielectric testing is performed on the transfer switch.

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120/240V

4. GENERAL DESCRIPTION

TS 910 Automatic Transfer Switches employ a power contactor switching unit with a microprocessor

based controller to automatically start a generator and transfer system load to a generator supply in

the event of a utility supply failure. System load is automatically re-transferred back to the utility

supply following restoration of the utility power source to within normal operating limits. All load

transfer sequences are “Open Transition” (i.e. “break-before-make”) utilizing an in-phase transfer

detection control sequence.

The TS 910 series transfer switches use a type TSC 9 microprocessor based controller. All

necessary control functions for fully automatic operation are provided by the TSC 9 transfer

controller. The TSC 9 controller is mounted inside the transfer switch enclosure and operating

status is provided via LED indicators that are visible though a front panel opening on NEMA 1 rated

enclosures. For detailed information on the TSC 9 Transfer Switch controller, refer to Section 18 of

this manual.

The standard TS 910 series Automatic Transfer Switch is rated for 100% system load and requires

upstream over current protection.

Service Entrance Rated TS 910 Automatic Transfer Switch models are supplied with a utility supply

circuit breaker with over current protection. Refer to Section 17 of this manual for detailed

information on over current protection.

4.1. PRODUCT MODEL CODE

The type of TS 910 series transfer switch supplied is identified by way of a 11 digit product

code which appears on the equipment rating plate (MODEL) on the inside of the door of the

transfer switch. The model code structure is as follows:

Service

Model Number Amperage Voltage*

TS912A0100A
TS912A0100B

100A 120/240V
100A 120/240V

Standard

ATS

Entrance

Rated ATS 2 Pole

3 w ire w ith

Neutral 50/60Hz

Nema 1

Enclosure

TS912A0200A
TS912A0200B

TS912A0400A
TS912A0400B

200A 120/240V
200A 120/240V

400A 120/240V
400A 120/240V

*Configurable for 120/208V System Voltages

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4.2. TS 910 OPTIONAL ACCESSORIES

The following optional accessories may be ordered as field installable kits.

Model Code Description

TS910-HTR

TS910-SPD1PH

TS910-KWLS1PH2

TS910-KWLS1PH4

TS910-WMS

TS910-N3R100A
TS910-N3R100B
TS910-N3R200A
TS910-N3R200B
TS910-N3R400A

TS910-N3R400B

Enclosure Heater, 120VAC Fused, supplied from ATS
Load Bus
Surge Protective Device, Class 1, 120/240V connected
to Load Bus
kW Load Shed Control output contact, Single Stage, 0­200A Current Transformers connected to ATS Load Bus
kW Load Shed Control output contact, Single Stage, 0­400A Current Transformers connected to ATS Load Bus
Wireless Remote Alarm Messaging Module
NEMA 3R Door, External Door Mountable to NEMA 1
ATS Enclosure (Specify matching ATS model number)

Additional information on TS 910 optional accessories can be obtained from our

Website (www.thomsontechnology.com ).

4.3. TYPICAL COMMISSIONING PROCEDURES

CAUTION:

Commissioning procedures must be performed by qualified

personnel only.

Note: The TYPICAL AUTOMATIC TRANSFER SWITCH COMMISSIONING

PROCEDURES MODEL SERIES TS 910 (attached as “Appendix A”) is provided for

general information only pertaining to typical site installations and applications. Contact

Thomson Technology for further information as may be required.

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5. GENERAL THEORY OF OPERATION

5.1. AUTOMATIC SEQUENCE OF OPERATION

Note: Time delays indicated below are factory default settings only. Refer to Section 18.15 of this

manual for alternate time delay settings available on TSC 9 Controller

UTILITY POWER FAIL

GEN START

GEN WARM-UP

TRANSFER TO GEN

LOAD SHED ACTIVATE

UTILITY POWER RETURN

TRANSFER TO UTILITY

LOAD SHED RESET

GEN COOL DOWN

When voltage drops on any phase of the utility supply below 70%
of rated voltage, a generator start sequence will be initiated.

The generator will start following expiry of the 3 second Gen
Start timer.

A generator warm-up period will be initiated once the generator
starts and reaches 80% rated voltage and 90% rated frequency.

The load will transfer to the generator supply following expiry of
the 10 second Gen Warm-up timer.

All non-essential loads connected to Load Shed control circuit
will be de-energized once generator transfers on load (If kW
Load Shed option is installed, refer to Section 18.16 of this
manual for further details).

When utility power is restored to above 80% rated voltage on all
phases, a utility power return sequence will be initiated.

The load will transfer from generator to utility power following
expiry of the 120 second Utility Return timer, provided both
generator and utility voltages are in-phase at time of transfer.

All non-essential loads connected to Load Shed control circuit
will be re-energized once load transfers to utility power.

The generator will automatically stop following expiry of the 2
minute Gen Cool Down timer.

5.2. SERVICE ENTRANCE AUTOMATIC TRANSFER SWITCH OPERATION

5.2.1. OVER CURRENT TRIP

Should the utility breaker trip open due to an over current condition, TSC 9 transfer

controller will initiate an engine start signal and will permit transfer of the load to the

generator supply. The utility source will be locked out and the load will remain on the

generator supply until the Utility Service Entrance breaker is manually reset.

5.2.2. SERVICE DISCONNECT PROCEDURE

To initiate a Utility Supply Service Disconnect, follow procedure shown below:

5.2.2.1. TURN OFF GEN STARTING CONTROL: At the generator set,

turn it’s automatic starting control to OFF position to prevent generator

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set from automatically starting when the Utility Service disconnect

breaker is opened.

5.2.2.2. LOCK OPEN GENERATOR CIRCUIT BREAKER: At the

generator set, OPEN its main generator output power circuit breaker.

Attach safety lockout padlock to the circuit breaker to prevent

unauthorized change in operating condition.

WARNING!

Failure to lock open the main generator output

circuit breaker may result in serious personal

injury or death due to electrical shock.

5.2.2.3. LOCK OPEN UTILTY SERVICE DISCONNECT BREAKER: At

the transfer switch, OPEN the Utility Service disconnect circuit

breaker. Attach safety lockout padlock directly onto the Service

Disconnect Utility circuit breaker toggle hasp provided to prevent

unauthorized change in operating condition.

NOTE!

On NEMA 3R rated Transfer Switches, A door

locking Padlock hasp is also provided in cases

where the padlock does not fit behind the

NEMA 3R door when closed.

WARNING!

Failure to lock open the Utility Service

disconnect circuit breaker may result in serious

personal injury or death due to electrical shock.

Arc Flash and Shock Hazard. Will cause severe injury or death.

Do not open equipment until ALL power sources are disconnected

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DANGER!!!!

TS 910 TRANSFER SWITCH

This equipment must be installed and serviced only by qualified electrical

personnel utilizing safe work practices and appropriate Personal Protective

Equipment (PPE). Failure to do so may cause personal injury or death

5.2.3. RETURN FROM SERVICE DISCONNECT MODE

To return the system back to automatic operation following a Service Disconnect

mode, follow procedure shown below:

5.2.3.1. CLOSE ATS ENCLOSURE DOOR: Prior to Load re-

energization, ensure the transfer switch enclosure door/front cover is

adequately closed with all provided fasteners.

5.2.3.2. CLOSE UITLITY SERVICE DISCONNECT BREAKER: To re-

energize the load, remove the padlock(s) from the Utility Service

Disconnect Circuit Breaker and or ATS door, and move the circuit

breaker to the CLOSED position. The Load will be re-energized and

the transfer switch will remain in the utility supply position.

5.2.3.3. CLOSE GENERATOR CIRCUIT BREAKER: At the generator

set, re-close the main generator output power circuit breaker.

5.2.3.4. RE-ENABLE AUTOMATIC GEN STARTING CONTROL: At the

generator set, turn its automatic starting control back to the

AUTOMATIC position to return the system back to fully automatic

operation.

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6. OVER CURRENT PROTECTION

6.1. STANDARD TS 910 AUTOMATIC TRANSFER SWITCH

The standard TS 910 Automatic Transfer Switch does not contain any integral over current

protection and requires upstream over current protection devices for both Utility and

Generator sources. The Standard TS 910 is rated for 100% continuous loading and can

withstand a maximum short circuit fault current as noted in Section 17 of this manual. The

standard TS 910 transfer switch model without integral over current protection is identified in

the product model code. Refer to Section 4.1 of this manual for further details on model

coding.

6.2. SERVICE ENTRANCE RATED TS 910 AUTOMATIC TRANSFER SWITCH

TS 910 transfer switches have integral over current protection supplied on the Utility source

as standard. For transfer switches rated 100A through 400A, over current protection is non-

adjustable thermal-magnetic type.

7. GENERAL NOTES ON SERVICING TRANSFER SWITCH
MECHANISM

DANGER!!!!

Arc Flash and Shock Hazard. Will cause severe injury or death.

Do not open equipment until ALL power sources are disconnected

This equipment must be installed and serviced only by qualified electrical

personnel utilizing safe work practices and appropriate Personal Protective

Equipment (PPE). Failure to do so may cause personal injury or death

Only qualified personnel should undertake Service work. Failure to correctly maintain an

automatic transfer switch may present a hazard to life and equipment. Full operational

testing must be done prior to placing a transfer switch in service subsequent to any

maintenance or repair. Any service work involving electrical components requires high-

potential testing to ensure that required insulation levels have been maintained.

When performing any service work on the transfer mechanism, it is imperative that the

following be observed:

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To maintain mechanical integrity, ensure that:

• All fasteners are adequately tightened.

• The operating shaft is not damaged or bent, and that all bearing points operate

freely.

To maintain electrical integrity, ensure that:

• All electrical connections, especially power connections, are clean and

adequately tightened. Corroded or loose power connections will cause

destructive heating, and may cause premature tripping.

• All insulating devices are in place and in good condition.

• No moisture or other contamination is present.

• Electrical conductors are adequately secured away from moving parts.

To maintain operational integrity, ensure that:

• All control devices are in good condition and correctly calibrated.

• All control devices are adequately secured in their plug-in fixtures.

8. TRANSFER SWITCH MECHANISM OPERATION

The transfer mechanism is a power contactor assembly. The transfer switch mechanism has only

two possible positions: Utility contacts closed or Generator contacts closed. There is no neutral

position.

8.1. AUTOMATIC OPERATION

During automatic operation, the TSC 9 controller issues pulsed control signals to each of the

power contactor solenoids for the utility and generator supply. Two solenoids are utilized,

one for utility supply, one for the generator supply. The two solenoids are electrically

interlocked and are intermittent duty rated only (i.e. they cannot be continuously energized

otherwise damage will result).

8.2. MANUAL OPERATION

The transfer switch maybe operated manually for maintenance or emergency operation

conditions provided both Utility and Generator supplies are de-energized prior to manual

operation.

DANGER

DANGER

DANGERDANGER

HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH

• This equipment must be serviced only by qualified electrical personnel utilizing safe

work practices and appropriate Personal Protective Equipment (PPE).

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on mechanism here

on mechanism here

• Many components of this equipment operate at line voltage. DO NOT TOUCH. Use

only electrically isolated tools.

• Install and close all covers before applying power to this equipment

• Do not open covers to equipment until ALL power sources are disconnected

Failure to do so may cause personal injury or death

Once both Utility and Generator supplies are de-energized the following procedure can be

used to operate the Transfer Switch manually.

a) Up-plug the TSC 9 controller isolation plug (J4) to prevent automatic operation.

b) Open ATS enclosure and locate Manual Operation Handle provided with the transfer

switch (see photos below)

100A/200A ATS Handle 400A ATS Handle

c) Insert manual handles onto the transfer switch mechanism at locations shown in the

following diagrams.

Insert Manual Handle

100A/200A Contactor Mechanism 400A Contactor Mechanism

d) To manually operate mechanism to the utility supply position, rotate handle

upwards. Do not over-torque handle once position has been attained.

Insert Manual Handle

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e) To manually operate mechanism to the generator supply position, rotate

handle downwards. Do not over-torque handle once position has been

attained.

f) Once ATS is manually operated to desired position, re-install enclosure cover,

then re-energize supply sources to re-energize the load.

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9. RECOMMENDED MAINTENANCE

DANGER!!!!

Arc Flash and Shock Hazard. Will cause severe injury or death.

Do not open equipment until ALL power sources are disconnected

This equipment must be installed and serviced only by qualified electrical

personnel utilizing safe work practices and appropriate Personal Protective

Equipment (PPE). Failure to do so may cause personal injury or death

10.1. DO NOT perform dielectric tests on the equipment with the control components in the

circuit.

10.2. Check if control components are tight in sockets.

10.3. Periodically inspect all terminals (load, line and control) for tightness. Re-torque all

bolts, nuts and other hardware. Clean or replace any contact surfaces, which are

dirty, corroded or pitted.

10.4. Transfer switches should be in a clean, dry and moderately warm location. If signs of

moisture are present, dry and clean transfer switch. If there is corrosion, try to clean

it off. If cleaning is unsuitable, replace the corroded parts. Should dust and/or debris

gather on the transfer switch, brush, vacuum, or wipe clean. DO NOT blow dirt into

power switching devices.

10.5. Test the transfer switch operation. While the unit is exercising, check for freedom of

movement, hidden dirt, corrosion or any excessive wear on the mechanical operating

parts.

10.6. Verify all settings on the TSC 9 controller as per the TSC 9 component calibration

label inside the transfer switch enclosure.

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•

10. FRONT INTERIOR VIEW (2 POLE 100A STANDARD ATS)

UTILITY SUPPLY

L1 L2

TRANSFER

TSC 9
CONTROLLER

NEUTRAL

MECHANISM

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

L1 L2

LOAD

(BOTTOM LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP

4)

GEN SUPPLY

(TOP LUGS)

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•

11. FRONT INTERIOR VIEW (2 POLE 100A SERVICE ENTRANCE ATS)

UTILITY SUPPLY

L1 L2

UTILITY SERVICE

NEUTRAL

TSC 9
CONTROLLER

DISCONNECT
BREAKER

TRANSFER
MECHANISM

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

LOAD

(BOTTOM LUGS)

L1 L2

GEN SUPPLY

(TOP LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP 4)

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•

12. FRONT INTERIOR VIEW (2 POLE 200A STANDARD ATS)

UTILITY SUPPLY

L1 L2

NEUTRAL

TSC 9
CONTROLLER

TRANSFER
MECHANISM

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

L1 L2

LOAD

(BOTTOM LUGS)

GEN SUPPLY

(TOP LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP 4)

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•

13. FRONT INTERIOR VIEW (2 POLE 200A SERVICE ENTRANCE ATS)

UTILITY SUPPLY

L1 L2

UTILITY SERVICE

NEUTRAL

TSC 9
CONTROLLER

DISCONNECT
BREAKER

TRANSFER
MECHANISM

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

LOAD

(BOTTOM LUGS)

L1 L2

GEN SUPPLY

(TOP LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP 4)

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•

14. FRONT INTERIOR VIEW (2 POLE 400A STANDARD ATS)

UTILITY SUPPLY

L1 L2

NEUTRAL

TSC 9
CONTROLLER

TRANSFER
MECHANISM

L1 L2

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

LOAD

(BOTTOM LUGS)

GEN SUPPLY

(TOP LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP 4)

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TS 910 TRANSFER SWITCH

•

15. FRONT INTERIOR VIEW (2 POLE 400A SERVICE ENTRANCE ATS)

UTILITY SUPPLY

L1 L2

UTILITY SERVICE

NEUTRAL

TSC 9
CONTROLLER

DISCONNECT
BREAKER

TRANSFER
MECHANISM

CUSTOMER
CONTROL
CONNECTIONS:

•GEN START

•LOAD SHED

•ALARM

REMOTE TEST

GROUND

LOAD

(BOTTOM LUGS)

L1 L2

GEN SUPPLY

(TOP LUGS)

ENCLOSURE
MOUNTING
HOLES (TYP 4)

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TS 910 TRANSFER SWITCH

16. ENCLOSURE DIMENSIONS/CABLE TERMINALS

MODEL TYPE AMPERAGE

TS912A0100A

TS912A0100B

TS912A0200A

TS912A0200B

TS912A0400A

TS912A0400B

STD ATS 100A 16 1/8" 18 7/8" 8 1/4" 20 lbs 1 #14 - 1/0

SE ATS 100A 27 1/8" 18 7/8" 8 1/4" 30 lbs 1 #14 - 1/0

STD ATS 200A 27 1/8" 18 7/8" 8 1/4" 30 lbs 1 #6 - 250mcm

SE ATS 200A 31 1/8" 18 7/8" 8 1/4" 35 lbs 1 #6 - 250mcm

STD ATS 400A 45 1/8" 24 7/8" 11" 70 lbs 2 #6 - 250mcm

SE ATS 400A 45 1/8" 24 7/8" 11" 80 lbs 2 #6 - 250mcm

HEIGHT

INCHES

DIMENSIONS TERMINAL RATING

WIDTH

INCHES

DEPTH

INCHES

SHIPPING

WEIGHT

LBS

QTY

PER

PHASE

RANGE

17. REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES

17.1. TRANSFER SWITCH WITHSTAND CURRENT RATINGS

WITHSTAND CURRENT RATING AMPS (RMS)
With Upstream

MODEL

TS912A0100A

Circuit Breaker

Protection

@240V

MAX.

VOLTAGE

RATED

CURRENT

(A)

240 100 10,000 100,000 T, J

With Upstream Fuse

Protection

@ Up to

240V Fuse Type

TS912A0200A

TS912A0400A

240 200 10,000 100,000 T, J

240 400 25,000 100,000 T, J

Fuse ratings shown are maximum allowable to permit use of the transfer switch in application

with available fault current not exceeding that shown. Consideration must be given to fuse

sizing when fuses also provide overload protection.

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TS 910 TRANSFER SWITCH

17.2. 100A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES

100A transfer switches are suitable for use on circuits capable of delivering 10,000 Amps

(RMS symmetrical), 240V when protected by the following upstream circuit breakers:

MANUFACTURER MANF CATALOG NUMBER RATINGS

Eaton/Cutler Hammer FCL, FB, QCHW, GB, GHB, GC,

GHC, GD, EHD

Eaton/Cutler Hammer FDB, FD,HFD, FDC, CA, CAH 150A, 240V

Square D FI/FC/FA/FH 100A, 240V

Square D QOM1, QOM1-VH 125A, 240V

Square D QOM2 QOM2-VH 225A, 240V

Square D Q2, Q2-H 175A, 240V

Square D QB, QD, QG, GJ 250A, 240V

Siemens CED6, D2, ED4, ED6, HED4,

HED6, QP(Q2125),

QPH(QH2125H)

Siemens QJ2, QJH2, 150A, 240V

GE THQB, THQB, THHQB, THHQC 100A, 240V

GE THHQL, TQDL, THQDL 125A, 240V

GE TQD, THQD, THED 150A, 240V

100A, 240V

125A, 240V

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TS 910 TRANSFER SWITCH

17.3. 200A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES

200A transfer switches are suitable for use on circuits capable of delivering 10,000 Amps

(RMS symmetrical), 240V when protected by the following upstream circuit breakers:

MANUFACTURER MANF CATALOG NUMBER RATINGS

Eaton/Cutler Hammer CSR, BWH, FD, HFD, JDB, JD,

HJD,

Eaton/Cutler Hammer JDC 250A, 240V

Eaton/Cutler Hammer DK, KD, KDB, HKD, KDC, LCL, LA 400A, 240V

Square D Q2, QOM2, QOM2-VH, Q2-H 225A, 240V

Square D KI, KA, KH, KC, QB, QD, QG, QJ 250A, 240V

Square D LE, LX, LXI, LC, LI, LA, LH 400A, 240V

Siemens FD6-A, FXD6-A, HFD6, CFD6 250A, 240V

GE THQDL, TQDL 125A, 240V

GE THLC2 225A, 240V

GE SF 250A, 240v

225A, 240V

PM140 REV 0 12/02/09 24 Thomson Technology

TS 910 TRANSFER SWITCH

17.4. 400A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES

400A transfer switches are suitable for use on circuits capable of delivering 25,000 Amps

(RMS symmetrical), 240V when protected by the following upstream circuit breakers:

MANUFACTURER MANF CATALOG NUMBER RATINGS

Eaton/Cutler Hammer DK, KDB, KD, CKD, HKD, CHKD,

400A, 240V

KDC, LCL, LA TRIPAC

Square D LA, LH, LC, LI, LE, LX, LXI, 400A, 240V

Siemens NJGA, HJGA, LJGA, JXD2, JD6,

400A, 240V

JXD6, HJD6, HJXD6, HHJD6,

HHJXD6, CJD6, SJD6, SHJD6,

SCJD6

MERLIN GERIN CJ400N, CJ400H, CJ400L 400A, 240V

For other circuit breaker types and sizes not listed, contact Thomson Technology.

17.5. INTERRUPTING CAPACITY CURRENT RATINGS (ALL SERVICE ENTRANCE

RATED MODELS)

UTILITY SUPPLY

BASIC MODEL

TS912A0100B

INTERRUPTING CAPACITY

CURRENT RATING AMPS (RMS)

No Upstream Circuit Breaker

MAX.

VOLTAGE

240 100 10,000 10,000

RATED

CURRENT

(A)

Protection Required on Utility

Source
@240V @240V

GEN SUPPLY WITHSTAND

CURRENT RATING AMPS (RMS)

TS912A0200B

TS912A0400B

240 200 10,000 10,000

240 400 25,000 25,000

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TS 910 TRANSFER SWITCH

18. TSC 9 Transfer Switch Controller

18.1. DESCRIPTION

The TSC 9 controller utilizes microprocessor-based design technology, which provides

high accuracy for all voltage sensing and timing functions. The TSC 9 is factory

configured to control all the operational functions and operating status of the automatic

transfer switch.

The TSC 9 controller consists of a printed circuit board (PCB), which is mounted inside

the transfer switch on the left-hand side wall of the enclosure. A faceplate is provided

with graphic label showing status lights and operation pushbuttons which are visible

through the front cover of the transfer switch.

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TS 910 TRANSFER SWITCH

18.2. ELECTROSTATIC DISCHARGE PRECAUTIONS

CAUTION

contents subject to damage by

STATIC ELECTRICITY

The TSC 9 controller 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 (contact a grounded

surface and maintain contact while handling the equipment, a grounded 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 grounded surfaces and only use an anti-static bag for

transporting the equipment.

18.3. DIELECTRIC TESTING

Do not perform any high voltage dielectric testing on the TSC 9 controller. The control

circuit isolation plug connected to the TSC 9 must be removed if high voltage dielectric

testing is performed on the transfer switch.

PM140 REV 0 12/02/09 27 Thomson Technology

TS 910 TRANSFER SWITCH

18.4. TSC 9 FACEPLATE

The TSC 9 Controller faceplate is shown as in FIGURE 1

USB Factory Programming Port

Utility Supply Available LED light

Gen Supply Available LED light

Test Mode Pushbutton & LED light

Gen Exercise Mode Pushbutton & LED light

System OK LED Light

System OK LED Light

Wait for Transfer LED Light

Load on Utility LED light

Gen Start LED light

ATS Alarm Active LED light

Alarm Active LED light

Diagnostic Active LED light

Load on Gen LED light

Load Shed LED light

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TS 910 TRANSFER SWITCH

Not curr ently w aiting for in-phase

18.5. TSC 9 FACEPLATE LIGHTS AND PUSHBUTTON OPERATION

Operation of the TSC 9 controller lights and pushbuttons are described in the following

table:

Light
Color

Yellow Alarm

Yellow

Label Light Off Light On Light Slow Flash Light Fast Flash

Gree n Syste m OK

Wait For

Transfer

Gree n Diagnos tic

No f ault condition has occurred

since last system reset.

transf er.

Unused. Alw ays off.

A f ault condition has occurred

since last system reset.

Currently w aiting for in-phase

transf er.

System is f unctioning

normally.

A in-phase transf er

related fault has occurred.

Gree n Utility

Gree n On Utility

Red On Gener ator

Red Generator

Red Gener ato r Start

Yellow Load Shed

Yellow TEST

Yellow EXERCISE

Lam p Te s t

Syste m Res e t

Utility voltage/freq not good. Utility voltage/freq good.

Load is not on utility. Load is on utility.

Load is not on generator. Load is on generator.

Gen voltage/freq not good. Gen voltage/freq good.

Generator is not commanded to

start/run.

Load is not being shed. Load is being shed.

Manual test is not active. Manual test is currently active.

Exercise is not active or enabled

Test and Exercise lights flash f ast alternatively. All other indicators are of f .

Generator is c ommanded to

start/run.

Exercise is enabled but not

currently active.

Special Cond itions

All indicators flash f ast together.

Manual test is active,

initiated remotely.

Exerc ise is currently

active.

A utility-related transfer

fault has occurred.

A gen-related transfer

fault has occurred.

An exercise related fault

has occurred.

PM140 REV 0 12/02/09 29 Thomson Technology

18.6. TSC 9 PRINTED CIRCUIT BOARD

J6 –RS 232

Interface Plug

(Wi-Fi Option)

USB Factory

Programming

TS 910 TRANSFER SWITCH

Configuration
Jumpers

KW Adjustment Switches
(KW Load Shed Option)

Port

J4 – Controller
Isolation Wiring Plug

Customer Interface
Control Terminal Block

FIGURE 2

Current Transformer
Plugs
(KW Load Shed Option)

Expansion Port
(Future)

PM140 REV 0 12/02/09 30 Thomson Technology

TS 910 TRANSFER SWITCH

18.6.1. PRINTED CIRCUIT BOARD USER INTERFACES

The TSC 9 has the following user interface items located on the printed circuit

board.

18.6.1.1. Customer Interface Control Terminal Block

All control wiring connections are made directly on the TSC 9 Transfer

controller. A removable plug-in clamp screw terminal block is provided at the

bottom end of the controller (see photo below)

Terminals are provided for the following control features: Refer to wiring

diagram shown below for connection numbers.

PM140 REV 0 12/02/09 31 Thomson Technology

CONTROL TERMINAL BLOCK

• Engine Start Stop (dry contact output)

• Load Shed (dry contact output)

• Alarm Output (solid state output)

• Remote Test Input (dry contact input)

TS 910 TRANSFER SWITCH

(RESISTIVE)

ENGINE START
(CONTACT CLOSES TO START ENGINE)

LOAD SHED
(CONTACT OPENS TO DISCONNECT
NON-ESSENTIAL LOADS)
RATED 5A, 240VAC, 28VDC (RESISTIVE)

ALARM OUTPUT
(CLOSE ON ALARM)
100Ma MAX LOAD, 120VAC, 24VDC

REMOTE TEST

CONTACT TO CLOSE TO INITIATE TEST
(OPEN TO TERMINATE TEST)
CONNECT ONLY A VOLTAGE FREE
CONTACT TO THIS INPUT

18.6.1.2. Configuration Jumpers

The TSC 9 controller provides 9 user-configurable functions which utilize

jumpers located directly on the printed circuit board as per FIGURE 2.

They are used for configuration of main system operating parameters

such as voltage, phases and timers. Refer to Section 18.15

(CONFIGURATION INSTRUCTIONS) for further information.

18.6.1.3. KW Adjustment Switches

The TSC 9 controller provides 2 KW load adjustment switches which are

utilized when the KW Load Shed optional accessory is provided with the

transfer Switch. Additional information on TS 910 kW Load shed optional

accessory can be obtained from our Website

(www.thomsontechnology.com ).

18.6.1.4. Controller Isolation wiring Plug (J4)

A 20 pin wiring plug is utilized on the TSC 9 controller for connecting all

interconnecting wiring to the transfer switch mechanism. This plug can

be used for disconnecting all control power to the TSC 9 controller for

servicing or manual ATS operating procedure.

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TS 910 TRANSFER SWITCH

18.6.1.5. Current Transformer Plugs

The TSC 9 controller provides 3 plugs to interconnect external Current

Transformers when the transfer switch is supplied with the KW Load

Shed optional accessory. Current transformers with specific 2 pin plug

connectors and 0-0.3VAC output can only be used. Additional

information on TS 910 kW Load shed optional accessory can be

obtained from our Website (www.thomsontechnology.com ).

18.6.1.6. Expansion Port

The TSC 9 controller provides an expansion port for future use only.

18.6.1.7. USB Factory Programming Port

A USB port is provided on the front faceplate of the TSC 9 controller. It is

utilized for factory programming and/or service diagnostic use only.

18.6.1.8. RS 232 Interface Plug (Wi-Fi Option)

A RS 232 port is provided on the printed circuit board of the TSC 9

controller. It is utilized for interconnection to a Wi-Fi remote messaging

module when this optional accessory is provided with the transfer Switch.

Additional information on TS 910 Wi-Fi Remote Messaging optional

accessory can be obtained from our Website

(www.thomsontechnology.com ).

PM140 REV 0 12/02/09 33 Thomson Technology

TS 910 TRANSFER SWITCH

18.7. TSC 9 OPERATING INSTRUCTIONS

To operate the TSC 9 controller and associated transfer switch using the front faceplate

pushbuttons, refer to the following table:

18.7.1. AUTOMATIC SEQUENCE OF OPERATION

Refer to Section 5 GENERAL THEREOY OF OPERATION of this manual for

information on automatic operation.

18.7.2. TSC 9 Controller Operation Pushbuttons

TEST

EXERCISE

TIMER BYPASS
LAMP TEST
ALARM RESET

To Load Test, press and hold the “T” pushbutton for 2 seconds until LED light above pushbutton
comes ON. The generator will start and transfer on load per Automatic Sequence.

To cancel Load Test, press and hold the “T” pushbutton for 2 seconds until LED light above
pushbutton goes OFF. The load will re-transfer back to the utility power per Automatic Sequence.

To set Exercise mode and schedule, press and hold the “E” pushbutton for 2 seconds until LED light
above pushbutton starts flashing. The generator will start and operate off load (or ON Load if selected).
The generator will operate for 30 minutes then will automatically stop. Exercise LED will change from
flashing to continuously ON, indicating exercise clock schedule is enabled. The generator will
automatically start and exercise in 7, 14 or 28 day cycles as selected.

To cancel Exercise, press and hold the “E” pushbutton for 2 seconds until LED light above
pushbutton goes OFF.

TIMER BYPASS: Press and hold the “E” and “T” pushbutton together for 2 seconds to bypass any
active time delay.

LAMP TEST: Press and hold the “E” and “T” pushbutton together for 5 seconds to activate lamp test
function.

ALARM RESET: Press and hold the “E” and “T” pushbutton together for 10 seconds until alarm LED
goes out.

Should the generator set fail while on load when in the TEST or

EXERCISE modes, the transfer switch shall automatically retransfer the

load back to the utility supply if within nominal limits. The utility return

timer will be bypassed in this condition.

PM140 REV 0 12/02/09 34 Thomson Technology

NOTE

TS 910 TRANSFER SWITCH

18.8. TSC 9 OPERATING MODE DESCRIPTIONS

18.8.1. TRANSFER SWITCH FAIL ALARM LOGIC

The TSC 9 controller contains logic to detect abnormal operation during

various failure modes. Detailed operating logic is as follows:

18.8.1.1. Utility Limit Switch Failure:

Should the utility power contactor limit switch fail to close when the contactor

is in the utility position, an alarm condition will be activated after a 10 second

delay. This alarm condition will cause the following events to occur:

• Force Transfer: a forced transfer to the generator supply will be

activated. A generator start signal will be initiated to start the

generator and load will transfer to the generator supply if within

normal limits. Re-transfer back to the utility supply will not occur

until the Transfer Fail alarm condition is reset.

• ‘On Utility’ LED Flashes: the “On Utility’ LED will begin flashing

to indicate that the utility limit switch is not operating correctly.

The LED will flash until the alarm condition is reset.

• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The

LED will not go out until the alarm condition is reset.

• Alarm Output Signal Activated: the output signal on customer

terminals #5 & #6 will be activated. The alarm output signal will

be terminated once the alarm condition is reset.

18.8.1.2. Generator Limit Switch Failure:

Should the generator power contactor limit switch fail to close when the

contactor is in the generator position, an alarm condition will be activated after

a 10 second delay. This alarm condition will cause the following events to

occur:

• Force Transfer: a forced transfer to the utility supply will be

PM140 REV 0 12/02/09 35 Thomson Technology

activated. The load will automatically be transferred to the utility

supply if within normal limits. Re-transfer back to the generator

supply will not occur until the Transfer Fail alarm condition is

TS 910 TRANSFER SWITCH

reset and the generator is still called to start for Test or Exercise

operating modes.

• ‘On Gen’ LED Flashes: the “On Gen’ LED will begin flashing to

indicate that the generator limit switch is not operating correctly.

The LED will flash until the alarm condition is reset.

• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The

LED will not go out until the alarm condition is reset.

• Alarm Output Signal Activated: the output signal on customer

terminals #5 & #6 will be activated. The alarm output signal will

be terminated once the alarm condition is reset.

18.8.1.3. Gen Fail to Perform an Exercise Operation:

Should the generator fail to perform an automatic exercise mode (i.e.

fail to start or fail on load), an alarm condition will be activated after a

60 second delay. This alarm condition will cause the following events to

occur:

• ‘Exercise’ LED Flashes: the “Exercise LED will begin flashing to

indicate that the generator has not performed an ‘Exercise mode

correctly. The LED will flash until the alarm condition is reset.

• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The

LED will not go out until the alarm condition is reset.

• Alarm Output Signal Activated: the output signal on customer

terminals #5 & #6 will be activated. The alarm output signal will

be terminated once the alarm condition is reset.

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TS 910 TRANSFER SWITCH

18.8.1.4. Fail to Transfer (In-Phase Detection)

Should the transfer switch not immediately transfer following expiry of a

normal automatic mode sequence timer (e.g. Gen Warm-up Timer,

Utility Return Timer) and both generator and utility supplies are

available, the generator and utility supplies may not be in phase as

required by the ‘in-phase’ transfer detection sensor. Should the

generator and utility supplies fail to reach an ‘in-phase’ condition for a

time period of 5 minutes, an alarm condition will be activated. This

alarm condition will cause the following events to occur:

• In-Phase Bypass Transfer: The transfer switch will bypass the

in-phase detection circuitry and force a transfer to the intended

source. Re-transfer back to the original source will be permitted

• ‘Wait to Transfer’ LED Flashes: the “Wait to Transfer LED will

• ‘Alarm’ LED Activated: the ‘alarm’ LED’ will be activated. The

• Alarm Output Signal Activated: the output signal on customer

18.9. TEST MODES

18.9.1. UTILITY POWER FAIL SIMULATION (LOAD TEST)

To simulate a utility power failure condition, a TEST pushbutton is provided on

with the Wait to Transfer alarm still present.

begin flashing to indicate that the transfer switch did not detect

an ‘in-phase’ condition for a 5 minute period. The LED will flash

until the alarm condition is reset.

LED will not go out until the alarm condition is reset.

terminals #5 & #6 will be activated. The alarm output signal will

be terminated once the alarm condition is reset.

the front faceplate. Once the mode is initiated, the gen start will be activated.

Once the generator accelerates to nominal voltage and frequency levels, the

load will automatically transfer to the generator supply. To terminate the Test

Mode, the TEST pushbutton must be used. When the pushbutton is released

PM140 REV 0 12/02/09 37 Thomson Technology

TS 910 TRANSFER SWITCH

the LED light will go out and, the load will re-transfer back to the utility supply

following expiry of the Utility Return delay timer.

NOTE

The load will automatically re-transfer to the utility supply should the generator

fail while on load.

18.9.2. GENERATOR EXERCISE TEST

The TSC 9 controller contains an automatic generator exercise mode operating

feature. The exercise feature can be user configured to automatically start the

generator every 7, 14, or 28 days and operate it for 30 minutes (fixed) either

‘ON” or “OFF’ load (user configurable). Configuration settings are done using

PCB mounted jumpers. Generator starting times & days are automatically set

when the exercise mode is initiated via faceplate pushbutton.

Example: If the generator exercise mode is activated via the controller

pushbutton at 8:00am on Monday morning, the generator will automatically start

and operate for 30 minutes then will automatically stop. If the TSC 9 controller is

programmed for a 7 day schedule, the generator will automatically start at

8:00am Monday morning the following week (i.e. 7 days later) and run for 30

minutes then stop.

To change generator start time and day of exercising, the Exercise mode must

be canceled, and then reactivated at the desired start time and day.

NOTES

1. The TSC 9 contains a 24 hour power reserve feature to maintain exercise

timer settings in the event of power outages.

2. The load will automatically re-transfer to the utility supply should the

generator fail while in the test mode.

3. To bypass a 30-minute exercise run period, press and hold the Exercise

pushbutton on for 2 seconds until the LED remains on.

The Generator Exercise LED light will operate as follows:

 LED ON - Exercise Timer is initiated, the 7, 14 or 28 day cycle timer is

active and the generator is in the off state.

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TS 910 TRANSFER SWITCH

 LED FLASHING - Exercise Timer is initiated, the 30 minute run timer is

active and the generator is running on load.

 LED OFF - Exercise Timer is not initiated and the 7, 14 or 28 day cycle

timer is not active.

To terminate the Generator Exercise Mode, the Exercise pushbutton must be

held on for 2 seconds until the LED light above the pushbutton starts flashing.

When the pushbutton is released, the LED light will go out and the system will

return to normal operation.

18.9.3. REMOTE TEST

To activate a remote load test, a contact is to be remotely closed between terminal #7

and terminal #8 on the Customer Interface Terminal Block. When the contact closes,

and generator start will be activated and once the generator accelerates to nominal

voltage and frequency levels, the load will automatically transfer to the generator

supply. When the remote contact is opened, the load will re-transfer back to the utility

supply following expiry of the Utility Return delay timer. The Engine Cool down time

sequence will be initiated when the test mode is terminated.

NOTE

The load will automatically re-transfer to the utility supply should the generator

fail while on load.

18.10. TRANSFER FAIL FAULT RESET

To reset a Transfer Fail condition (i.e. When either the Load on Gen or Load on Utility

Lights are flashing and the ATS load is transferred to the alternate source), both

faceplate pushbuttons (i.e. TEST & EXERCISE) must be held on for 10 seconds until all

Lights on the faceplate start flashing. Once the alarm condition is reset, the load will

automatically retransfer back to the original source if within normal limits.

18.11. LAMP TEST

To initiate a Lamp Test, both faceplate pushbuttons (i.e. TEST & EXERCISE) must be

held on longer than 5 seconds until all Lights on the faceplate illuminate in a flashing

mode.

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TS 910 TRANSFER SWITCH

18.12. TIMER BYPASS

To bypass an active timing sequence (e.g. utility return timer, cool down timer, warm-up

timer) during operation, both faceplate pushbuttons (i.e. TEST & EXERCISE)) must be

held on for 2 seconds until all Lights on the faceplate start flashing.

18.13. TSC 9 VOLTAGE SENSING

The TSC 9 controller contains voltage sensing for each phase voltage of the utility and

generator supplies. The under voltage setting is for a falling utility voltage (i.e. “drop-

out” setting) on any one phase. The under voltage sensor will reset to normal when the

system voltage rises 10% above the “drop-out setting (i.e. differential value).

The under voltage drop-out set point for both utility and generator supplies is fixed at

70% of system voltage. The under voltage pick-up set point for both utility and

generator supplies is fixed at 80% of system voltage.

NOTE

To override momentary utility under voltage fluctuations, the TSC 9’s Engine

Start Delay Timer feature is utilized.

18.14. TSC 9 GENERATOR FREQUENCY SENSING

The TSC 9 controller contains frequency sensing for the generator supply. The under

frequency setting is for a falling generator frequency (i.e. “drop-out” setting). The under

frequency sensor will reset to normal when the system frequency rises 20% above the

“drop-out setting (i.e. differential value).

The under frequency drop-out set point for the generator supply is fixed at 70% of

system frequency. The under frequency pick-up set point for the generator supply is

fixed at 90% of system frequency.

NOTE

To override momentary under frequency fluctuations, the under frequency

sensor is provided with a transient time delay period of 3 seconds which is non-

adjustable.

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TS 910 TRANSFER SWITCH

18.15. TSC 9 CONFIGURATION INSTRUCTIONS

All user configuration of the TSC 9 controller is accomplished using hardware jumpers

located on top of the printed circuit board as per the following picture. No software

programming is required. The hardware jumpers are used for configuration of main

operating parameters such as system voltage, phases, and adjustable time delays.

18.15.1. FACTORY DEFAULT JUMPER SETTINGS

All TSC 9 configuration jumpers are set to default settings at the factory as per

the following table and should not require further setting.

CONFIGURATION JUMPERS

FUNCTION SETTING

EXERCISE TEST CYCLE 7 DAY

EXERCISE TEST CYCLE 14 DAY

EXERCISE TEST CYCLE 28 DAY

EXERCISE LOAD TRANSFER ON LOAD

EXERCISE LOAD TRANSFER OFF LOAD

ENGINE START DELAY 3 SEC

ENGINE START DELAY 6 SEC

ENGINE START DELAY 10 SEC

ENGINE WARMUP TIME 10 SEC

ENGINE WARMUP TIME 30 SEC

ENGINE WARMUP TIME 60 SEC

UTILTY RETURN DELA Y 10 SEC

UTILTY RETURN DELA Y 60 SEC

UTILTY RETURN DELA Y 120 SEC

ENGINE COOLDOWN TIME 1 MIN

ENGINE COOLDOWN TIME 2 MIN

ENGINE COOLDOWN TIME 5 MIN

CURRENT TRANSFORMER SIZE 200A

CURRENT TRANSFORMER SIZE 400A

SYSTEM VOLTAGE 208V

SYSTEM VOLTAGE 240V

SYSTEM PHA SE 1 Ph

SYSTEM PHA SE 3 Ph

TSC 9

FACTORY
DEFAULT

X

X

X

X

X

X

X

X

PM140 REV 0 12/02/09 41 Thomson Technology

TS 910 TRANSFER SWITCH

The following configuration jumpers are provided on the printed circuit

board to program the TSC 9 controller:

WARNING

The configuration jumper settings must not be changed while the

Transfer Switch and TSC 9 controller are energized. All sources of

power to the transfer switch must be de-energized prior to changing any

configuration jumper settings. Failure to do so may cause personnel

injury and/or death.

18.15.2. SYSTEM VOLTAGE JUMPERS

Two jumpers are provided to set the required system operating voltage (i.e.

Phase-to-Phase Voltage) of the TSC 9 controller and transfer switch as follows;

• 208V: For 208V nominal applications, a jumper must be placed across

the 2 pins, adjacent to the text on the PCB ‘208V’.

• 240V: For 240V nominal applications, a jumper must be placed across

the 2 pins, adjacent to the text on the PCB ‘240V’.

Only one jumper must be placed on the voltage selection jumpers. Failure to do

so will cause improper operation. When a system voltage is selected, the TSC

9’s utility and generator under voltage set point percentage setting will be

automatically programmed to correspond to the sensing input voltage (e.g. with

a 240V system voltage selected, and a 70% under voltage setting, the under

voltage sensor will be activated below 168VAC).

18.15.3. SYSTEM PHASES JUMPERS

Two jumpers are provided to set the required number of system phases for the

TSC 9 controller as follows;

• 1 PH: For single-phase applications, a jumper must be placed across

the 2 pins, adjacent to the text on the PCB ‘1 PH’. Phase C voltage

sensing input is ignored in the single-phase mode.

• 3 PH: (FUTURE USE) For three-phase applications, a jumper must be

placed across the 2 pins, adjacent to the text on the PCB ‘3 PH’.

Only one jumper must be placed on the selection jumpers. Failure to do so

will cause improper operation.

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TS 910 TRANSFER SWITCH

18.15.4. GEN EXERCISE LOAD TEST MODE (LOAD) JUMPERS

Two jumpers are provided to set the required exercise testing mode for the TSC

9 controller as follows;

• ON: for applications where the generator is to be exercised with load, a

jumper must be placed across the 2 pins, adjacent to the text on the

PCB ‘ON’:

• OFF: for applications where the generator is to be exercised without load

(i.e. Off load), a jumper must be placed across the 2 pins, adjacent to the

text on the PCB ‘OFF’:

Only one jumper must be placed on the selection jumpers. Failure to do so

will cause improper operation.

NOTE

The OFF load Test mode is the factory default setting.

NOTE

Should utility power fail during a no-load test operation, the load will

automatically transfer to the generator and will re-transfer back when utility

power is restored to within normal conditions. The engine will continue to run

until the 30 minute exercise time delay period expires.

18.15.5. ENGINE START DELAY JUMPERS

A TSC 9 PCB mounted jumper is provided to configure the desired Engine Start

Delay timer settings. Three time settings are provided - 3 seconds, 6 seconds or

10 seconds. A jumper must be placed across the 2 pins, adjacent to the desired

time as shown on the PCB.

Refer to Section 18.15.1 for the factory default settings of the Engine Start

Delay timer.

18.15.6. ENGINE WARMUP DELAY JUMPERS

A TSC 9 PCB mounted jumper is provided to configure the desired Engine

Warm-up Delay timer settings. Three time settings are provided – 10 seconds,

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TS 910 TRANSFER SWITCH

30 seconds or 60 seconds. A jumper must be placed across the 2 pins,

adjacent to the desired time as shown on the PCB.

Refer to Section 18.15.1 for the factory default settings of the Engine Warm-up

Delay timer

18.15.7. ENGINE COOL DOWN DELAY JUMPERS

A TSC 9 PCB mounted jumper is provided to configure the desired Engine Cool

down Delay timer settings. Three time settings are provided – 1 minute, 2

minutes or 5 minutes. A jumper must be placed across the 2 pins, adjacent to

the desired time as shown on the PCB.

Refer to Section 18.15.1 for the factory default settings of the Engine Cool down

Delay timer

18.15.8. UTILITY RETURN DELAY JUMPERS

A TSC 9 PCB mounted jumper is provided to configure the desired Utility Return

Delay timer settings. Three time settings are provided – 10 seconds, 60 seconds

or 120 seconds. A jumper must be placed across the 2 pins, adjacent to the

desired time as shown on the PCB.

Refer to Section 18.15.1 for the factory default settings of the Utility Return

Delay timer

18.15.9. CURRENT TRANSFORMER SIZE JUMPERS

A TSC 9 PCB mounted jumper is provided to configure the size of current

transformers which are utilized when the kW Load shed option is used with the

transfer switch. When the kW Load shed option is not used, no jumper setting is

required. Additional information on TS 910 kW Load shed optional accessory can be

obtained from our Website (www.thomsontechnology.com ).

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TS 910 TRANSFER SWITCH

condition to open control circuit of connected non-essential

separately-refer

condition to open control circuit of connected non-essential

18.16. LOAD SHED

Load Shed operation can be configured to three different settings as follows:

1. Disabled

2. Basic

3. kW Load Management

The transfer switch is supplied from the factory with the Load shed disabled. Refer to the

following table for detailed description of load shed operating modes, their application and

settings required on the TSC 9.

Load Shed
Fea ture Application Fea ture Description
Disabled

(factory default)

Basic Basic load shed feature used when Genset

Load Shed feature not used for applications
using Genset & ATS which are sized for
whole house load

is sized for only partial home load and
requires automatic control to shed selected
non-essential load.
Feature activated when TSC 9 kW s etting is
>00 setting

Load Shed Relay & Status LED Indicator are disabled None 00

- Load Shed Relay & St atus LED Indicator are enabled on
TSC 9 controller

- Load Shed Relay & LED are activated whenever
Generator is On Load and resets when load returns to
utility power

- Normally Closed contact opens during Load shed

TSC 9 CT
Jumper
Position

None >00 Setting

TSC 9 kW
Settings

kW Loa d
Mana gement

(feature sold

to associasted
instructions for
furhter details)

kW Load Management Load shed used
when Genset is sized for only partial home
load and requires automatic control to shed
selected non-essential load. Feature
provides added benefit of maximizing
available generator capacity where home
loads vary over time. Requires additional
Current Transformers

load

- Load Shed Relay & St atus LED Indicator are enabled on
TSC 9 Controller

- Load Shed Relay & LED are controlled via CT input
signal (refer to k W load Management sequence of
operation)

- Normally Closed contact opens during Load shed

load

200A or 400A

CT Position

(100A Model

uses 200A CT)

>00 Setting

to be 95% of

Gen kW

rating

When Load shed operation is required, the load shed output relay contact must be

connected to control an external non-essential load. The output contact is normally closed

and opens when a load shed condition is activated. The output contact is rated for 5A,

240VAC (resistive) maximum. The output contact can be directly connected to control

devices such as air conditioners with thermostat control input.

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TS 910 TRANSFER SWITCH

For controlling loads that do not have integral control inputs, suitably rated AC power
contactor panels must be used for interconnection with the Load Shed contact. Refer to
following typical connection example:

Additional information on TS 910 kW Load shed optional accessory can be obtained
from our Website (www.thomsontechnology.com ).

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TS 910 TRANSFER SWITCH

19. TS 910 SCHEMATIC DIAGRAM

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TS 910 TRANSFER SWITCH

20. TROUBLESHOOTING

Symptom Possible Causes

Will not re-transfer to utility source
upon restoration

Will not transfer to generator source
upon failure of utility source

Transfer to generator source without a
power failure on the utility source

- TSC 9 Isolation plug is disconnected

- A test mode has been activated (check TSC 9 status LED)

- Utility voltage is below 80% rated voltage (check utility source
for adequate voltage)

- A loose control connection

- Defective utility solenoid coil

- TSC 9 has incorrect voltage configuration jumper setting for
correct system voltage

- Defective TSC 9 controller (verify output signals)

- TSC 9 has “Transfer Fail” alarm activated as indicated by
flashing Load on Utility LED. Determine cause of alarm and
rectify before TSC 9 is reset

- In-phase transfer control has not detected an ‘in-phase
condition to permit transfer. Transfer switch will automatically
bypass an in-phase transfer after 5 minutes

- TSC 9 Isolation plug is disconnected

- Generator set not producing enough voltage/frequency or
output circuit breaker open

- TSC 9 has incorrect voltage configuration jumper setting for
correct system voltage

- Warm-up time delay function has not timed out yet (verify TSC
9 timer setting)

- A loose control connection

- Defective generator solenoid

- Defective TSC 9 controller (verify output signals with circuit
board mounted diagnostic LED’s)

- TSC 9 has “Transfer Fail” alarm activated as indicated by
flashing Load on Generator LED. Determine cause of alarm
and rectify before TSC 9 is reset

- If Utility voltage is present, In-phase transfer control has not
detected an ‘in-phase condition to permit transfer. Transfer
switch will automatically bypass an in-phase transfer after 5
minutes

- A TEST or EXERCISE mode has been activated (check TSC 9
status LED)

- Utility supply voltage is less than 70% on one or both phases of
nominal voltage

- Verify TSC 9 has correct voltage configuration jumper setting
for system voltage

- Defective TSC 9 controller (verify output signals with circuit
board mounted diagnostic LED’s)

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Symptom Possible Causes

Generator does not start up or stop
when it should

No time delay when there should be

- Verify remote engine control panel is set for automatic mode

- Verify engine start wiring is on correct terminals of TSC 9
controller.

- Verify engine start wiring is not loose at transfer switch and/or
at the engine control panel

- Verify time delay setting of the TSC 9 controller

21. REPLACEMENT PARTS

Replacement parts are available for the transfer switch as follows:

NOTE

When ordering replacement parts please provide the following

information:

-Transfer Switch Model code (e.g. TS 910A100A)

-Transfer Switch Serial Number (e.g. MW-022345)

The above information can be found on the transfer switch

equipment rating plate located on the inside of the ATS door.

Component Description

TSC 9 Service Replacement Controller Board c/w faceplate TSC9SR

TSC 9 Graphic Overlay 010985

Limit Switch 1 n/o, 1 n/c (all ATS Models) 11069

Utility Power Contactor Solenoid Coil
(100A Mechanism) 120V

Generator Power Contactor Solenoid Coil
(100A Mechanism) 120V

Utility Power Contactor Solenoid Coil
(200A Mechanism) 120V

Generator Power Contactor Solenoid Coil
(200A Mechanism) 120V

Utility/Generator Power Contactor Solenoid Coil
(400A Mechanism) 120V

Manual Handle (100-200A Mechanism) 11073

Manual Handle (400A Mechanism) 11074

Thomson Technology Part
Number

11070

11092

11071

11093

11072

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NOTE

There are no user serviceable components located on the

TSC 9 printed circuit board. If the TSC 9 controller is deemed

to be defective it must be returned to the Thomson

Technology Factory for repair or replacement. Please refer to

Product Return Policy section of this manual further

information on product return procedures required.

For other parts not listed, please contact Thomson Technology.

22. PRODUCT RETURN POLICY

Thomson Technology uses a Return Material Authorization (RMA) process. Please complete the

Return Authorization Request Form (available on our web page) for return of goods, warranty

replacement/repair of defective parts, or credit consideration and fax to the appropriate department.

Returns only: Sales Fax [phone]

Warranty replacement/Warranty Repair: Service Fax [phone].

Upon receipt of your request, Thomson Technology will confirm with a copy of our Order

Acknowledgement via fax advising the RMA number which should be used to tag the defective

controller prior to shipment.

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23. NOTES

TS 910 TRANSFER SWITCH

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TS 910 TRANSFER SWITCH

APPENDIX A – TYPICAL AUTOMATIC TRANSFER SWITCH
COMMISSIONING PRIOCEDURES

a) Pre-Energization Checks

1. Verify the generator and utility supply voltages are 120/240V maximum.

2. Confirm power cable size is correct for the lugs supplied in the transfer switch
(line, load, and neutral) and are properly torqued.

3. Confirm transfer switch has been adequately grounded per NEC requirements.

4. Confirm power cables have been meggered to ensure no cross phase
connections or conduction to ground.

5. Check for mechanical damage.

6. Check no packaging materials or tools are left inside the transfer switch.

7. Verify control wiring connected to the pluggable terminal block is properly
installed (i.e. no frayed ends, screw are tight, no damage, etc).

8. Ensure TSC 9 Control Isolation Plug (J4) is inserted into the TSC 9 Controller
prior to operation.

9. Verify TSC 9 controller jumpers are set to reflect desired operation.

10. Visually verify the transfer switch power contactor is closed in the utility
position. The upper solenoid plungers will be pulled towards the upper coils
(refer to photos below).

‘ 100A/200A Contactor Utility Position 400A Contactor Utility Position

11. Verify correct control wire interconnects have been installed to the generator
set auto start/stop controls. Note: The ATS Engine Start contact CLOSES to
start the engine and OPENS to stop the engine.

12. Ensure the inside of the transfer switch is clean from all dust, and other foreign
materials.

13. Re-install enclosure door front cover and tighten all cover mounting screws.

14. Visually verify on the transfer switch enclosure that there are no gaps, holes,

or potential for water ingress.

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TS 910 TRANSFER SWITCH

b) Equipment Energization

DDDDANGER

ANGER

ANGERANGER

HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH

• This equipment must be serviced only by qualified electrical personnel utilizing safe
work practices and appropriate Personal Protective Equipment (PPE).

• Many components of this equipment operate at line voltage. DO NOT TOUCH. Use
only electrically isolated tools.

Failure to do so may cause personal injury or death

1. Confirm Utility, Generator and loads can be energized in a safe manner.

2. Energize utility supply and confirm voltage is 120/240V and phasing is correct
at the source.

3. Verify the status of the following indicator lights on the TSC 9 HMI faceplate:

- Utility Source Green light is “ON”

- Load on Utility Green light is “ON”

4. Run the generator manually and confirm generator supply voltage is 120/240V
and phasing is correct at the source.

5. Verify the status of the following indicator lights on the TSC 9 HMI faceplate:

- Generator Source Red Light is “ON”

6. Using appropriate personal protective equipment (PPE) and insulated
tools/meters, remove the transfer switch front cover while energized.

7. Verify at the transfer switch (while energized), the utility and generator supply
voltage, phasing and phase rotation is correct.

8. Manually stop generator and place the generator controls in the "AUTOMATIC"
position.

9. To confirm automatic starting and load transferring of the generator, perform
the following steps:

a) To test, press and hold the “T” pushbutton on the TSC 9 controller

faceplate for 2 seconds until light above pushbutton comes ON. The
generator will start and transfer on load per Automatic Sequence.

b) To determine correct operation, observe the following on the TSC 9

faceplate:

- Gen Start Red light is “ON”

- Gen Source Red light is “ON”

- Load on Gen Red light is “ON

10. To stop the generator and transfer load back to the utility supply, press and hold the “T”
pushbutton for 2 seconds until light above pushbutton goes OFF. The load will re­transfer back to the utility power as per Automatic Sequence.

11. Perform a utility power outage test by opening the upstream utility feeder
breaker. The TSC 9 controller Utility supply light will turn off; the generator set
will start after the 3-second engine start delay has expired, the generator
should start and transfer on load as per Automatic Sequence.

15. Return the transfer switch to utility power by re-closing the upstream utility

breaker. The load should re-transfer back to the utility supply as per Automatic
Sequence.

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