TSi Power ATS-500 Series User manual

Operating Manual for ATS-500 Automatic Transfer Switch:
MC80023 –Hardwire 120 V-500-2000,-4000,-6000,-8000(15,20,30, 40 A)
MC80024 –Plugs & Receptacles 120 V-500-200x,-400x(15,20 A)
MC80025 –IEC 230 V-500-3904,-5904(15,20 A)
MC80026 –Plugs & Receptacles 208 V-500-380x,-580x(15,20 A)
220, 240 V-500-300x,-500x(15,20A)
MC80027 –Hardwire 208 V-500-3800,-5800,-7800,-9800 (15,20,30,40 A)
220, 240 V-500-3000,-5000,-7000,-9000 (15,20,30,40 A)
MC80028 –Hardwire 230 V-500-3900,-5900,-7900,-9900(15,20,30, 40 A)
MC80029 –Hardwire input, IEC output 208, 220, 240 V-500-3011,-011(15,20 A)
MC80030 –Hardwire input, IEC output 230 V-500-3911,-5911 (15,20 A)
MC80023,4,5,6,7,8,9,30
Rev. 7, September, 2019
SAVE THESE INSTRUCTIONS –This manual contains important instructions for the ATS
Series that should be followed during installation and maintenance.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 2
Table of Contents Page
1. GENERAL 5
1.1 Product Application ..................................................................................................................................5
1.2 Safety Alerts.........................................................................................................................................................6
1.3 General ATS Series Description .....................................................................................................6
1.4 Overall Dimensions.....................................................................................................................................7
1.5 Construction .......................................................................................................................................................8
1.6 Rear Access.........................................................................................................................................................8
1.7 Component Locations…………………………………………………………………………………………………………………..8
2. MAJOR COMPONENT/CIRCUIT DESCRIPTIONS 10
2.1 ATS Series System Architecture.................................................................................................10
2.2 ATS Circuit Boards..................................................................................................................................... 10
2.3 Input /Output Circuit Breakers.................................................................................................... 13
2.4 Audible Alarm Switch.............................................................................................................................14
3. INSTALLATION 14
3.1 Site Selection & Preparation……………………………………………………………………………………………………14
3.2Required Tools……………………………………………………………………………………………………………………………………..15
3.3Unpacking & Inspection.......................................................................................................................15
3.4 Voltage Selection........................................................................................................................................16
3.5 Installing the ATS-500 Series..........................................................................................................16
3.6 Connections (Hardwire Versions)…………………………..………………………………………………..……….16
4. POWERING UP THE ATS SERIES 18
4.1 Start-Up & Functional (Electrical) Test Procedure...................................................18
4.2 Testing w/Actual Load Equipment (Computer)........................................................19
4.3 Remote Status /Alarm Monitoring.........................................................................................19
5. REPAIRS & SERVICE 19
5.1 ATS Series Field Repair (Recommended Replacement Parts)..................19
5.2 Returning Defective Circuit Board (s) For Repair………………………………………………..20

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 3
5.3 Inventory Recommendations for Customer w/Large Numbers of
ATS Units…………………………………………………………………………………………………………………………………………………..20
6. REFERENCE 21
6.1 Specifications...................................................................................................................................................21
6.2 Product Configurations.......................................................................................................................29
6.3 TSi Power Contact Information……………………………………………………………………………………………31

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 4
COPYRIGHT
Copyright © 2019 TSi Power Corporation. All rights reserved.
The information contained in this Document is the property of TSi Power Corporation and
contains confidential and proprietary information owned by TSi Power Corporation. Any
duplication or disclosure without the written approval of TSi Power Corporation is prohibited.
TRADEMARK
TSi Power, TSi, the TSi Logo and ATS-500-XXXX are trademarks of TSi Power Corporation.
LIMITED WARRANTY
TSi Power Corporation warrants this product to be free from defects in materials and
workmanship for two (2) years from the date of purchase from TSi or its authorized
representatives. TSi will repair (or at its option, replace) any defective component(s) during this
warranty period.
To make a request or claim for service under this limited warranty, the original purchaser must
return the product, in the original shipping container or equivalent, to TSi or its authorized agent,
accompanied by a written receipt showing the date of purchase and both the model name and
serial number of the product.
Warranty does not cover transportation costs. Damage by misuse, accident or unauthorized
tampering of the product is not covered by the warranty. NO OTHER WARRANTIES ARE
EXPRESSED OR IMPLIED. TSI IS NOT LIABLE FOR CONSEQUENTIAL DAMAGES.THIS WARRANTY
GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY
FROM STATE TO STATE.
LIMITATION OF LIABILITY
IN NO EVENT SHALL TSI POWER CORPORATION BE LIABLE FOR ANY DAMAGES WHATSOEVER
(INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS
INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING
OUT OF THE USE OR INABILITY TO USE THIS PRODUCT, EVEN IF TSI OR ITS AGENT HAVE BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE
LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THE ABOVE EXCLUSIONS MAY NOT APPLY TO YOU.
REVISION
NUMBER DATE REASON FOR REVISION
0 September, 2014 Initial release
1 December, 2014 Revised Section 4 –Powering Up The ATS Series
2 January, 2015 Corrected MK Part Numbers In Para. 3.31 On Pg. 15
3 February, 2015 Revised Paragraphs 4.32 and 4.33
4 November, 2015 Updated Model Lineup
5 April, 2018 Added 40 A to MC80023, 27 and 28
6 May, 2018 Revised tables in Section 6 –Reference
7 September, 2019 Added new Logo and Graphics, Revised tables

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 5
1. GENERAL
1.1 PRODUCT APPLICATION
The ATS series of automatic transfer switches is designed for applications where two or
more autonomous power sources are available. The ATS can be utilized as single or
multiple units for different levels of redundancy. Applications include but are not limited
to telecom, computers, data centers, industrial control, automatic test equipment, oil
exploration and utilities.
The ATS works with asynchronous or out-of-phase power sources which allows them to
be used with a number of different sources. Customers with special requirements can
be offered custom programming to address special use situations. The ATS is fed by two
AC power sources.When the primary power source detector circuit senses a loss of power
on that circuit, it immediately switches the load over to the backup power source in
under one cycle. Upon return of primary power, the ATS will switch back in under one
cycle. This is fast enough to be invisible to even the most sensitive equipment.
Figure 1: Transfer between primary and backup power
Figure 2: Front View of the Automatic Transfer Switch

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 6
1.2 SAFETY ALERTS
SAFETY SIGNAL WORD DEFINITIONS
This document contains safety alert pictorial Symbols and Words that point out areas
and procedures that require special attention with regards to safety. These Symbols and
Words are defined in ANSI Z535.4-1998, Product Safety Signs and Labels.
DANGER:
DANGER indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING:
WARNING indicates a potentially hazardous situation which, if not avoided, will
result in death or serious injury.
CAUTION:
CAUTION indicates an imminently hazardous situation which, if not avoided, may
result in minor or moderate injury. It may also be used to alert against unsafe
practices.
The safety alert pictorial symbol appears in this document to make users aware of
important operating and safety concerns.
NOTE : Specific models of the ATS Series may be ETL Listed to signify
conformance with UL, CSA or CE requirements. For actual Listings see
individual model specifications in Section 6.1. Users should install the
ATS only where permitted and carefully follow the instructions in this
manual.
WARNING:
The ATS-500 receives power from two AC sources. To prevent any hazardous
situations from occurring, always turn off both circuit breakers in the rear of the
ATS unit (see Fig. 4 and 5), as well as the upstream circuit breakers protecting both
AC input sources to the ATS unit before connecting or disconnecting the AC input
and output wires to the input and output terminal blocks or connecting the plug
cables from the rear of the ATS unit.
1.3 GENERAL ATS SERIES DESCRIPTION
• Accepts inputs from asynchronous sources and can be used with most supply
voltages, including out-of-phase.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 7
• T ransfer time between sources in under one cycle which is fast enough for
even the most sensitive loads.
• Audible alarm with enable /disable switch provides for unattended security.
• LED status indicators for quick visual displays of fault conditions.
• Higher than 99% efficiency means substantial energy savings (when the ATS
is used as a battery-less UPS).
• Remote monitoring is provided through a DB9 port.
• 70-90% reduction in both CAP-EX and OP-EX (when the ATS is used as a
battery-less UPS).
• Built-in primary and backup rocker style circuit breakers are highly visible and
easily accessible on rear of unit.
• The ATS allows redundant AC power to mission-critical equipment using any
combination of UPS, backup generator or other available autonomous AC
power sources.
• Sturdy steel enclosure can be rack, wall or floor mounted with optional
mounting brackets. For other mounting options consult your local TSi sales
associate.
•AC Inputs are galvanically isolated.
•RCD (Residual Current Device) compatible.
1.4 OVERALL DIMENSIONS
The ATS-500 enclosure dimensions are 11.25" (286 mm) wide x 3" (76 mm) high x 10"
(2254 mm) deep for Plugs and Receptacles units and 11.5"(292 mm) deep for Hardwire
units –see Fig. 3.
Figure 3: ATS-500 Dimensions for Hardwire Units Shown (black polyester coating
shown)
3" (76 mm)
Audible Alarm
On/Off Switch
Green, Yellow & Red
Status Indicator LEDs
11.25" (286 mm)
83mm
11.5"
(292
mm)

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 8
1.5 CONSTRUCTION
The ATS-500 enclosure is constructed of 18 gauge (.048 in. thick), galvaneal steel, as
standard, and finished with a liquid black polyester powder coating for long-lasting
durability. The cover is easily removeable for servicing.
1.6REAR ACCESS –See Figures 4 and 5
The DB-9 Connector, Primary and Backup circuit breakers, Hardwire Termination
compartments and Plugs and Receptacles are accessed from the rear of the ATS
Series enclosures.
1.61 TOP-DOWN VIEW OF COVER SHOWING MAIN IDENTIFICATION LABEL AND
REAR COMPONENT LOCATIONS (for ATS-500-4000 hardwire unit) –See
Figure 4.
Figure 4: ATS-500-4000 Hardwire top-cover label showing rear
compartments/components
1.7 COMPONENT LOCATIONS
1.71 TOP VIEW WITH COVER REMOVED (See Figure 5)
DB-9 Alarm
Interface
AC Output
Location
Backup
Input
Location
Primary
Input
Location
Backup
Input
Breaker
Primary
Input
Breaker

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 9
Removing the top cover exposes the main wiring and major components of the ATS
Series. Before removing the top cover, make sure that both input circuit breakers are in
the “OFF” position and that the up-stream Primary and Backup AC sources are de-
energized (switched OFF).
DANGER: If the unit has already been installed and prior to the removal of the
top cover, make sure that both the PRIMARY and BACKUP INPUT CONNECTORS
in the back of the unit have been have been disconnected and that the up-stream
Primary and Backup AC sources are de-energized (switched OFF) - (See Figure 5).
Figure 5: Top-Down Rear view showing Hardwired ATS-500 with top-cover
removed
Primary AC
Input
Compartment
Backup 15 A,
20 A, 30 A or
40 A Circuit
Breaker
Compartment
Cover Mounting
Holes
Primary 15 A, 20 A,
30 A or 40 A
Circuit Breaker
AC Output
Compartment
DB-9 Alarm
Signal Output
Connector/
Circuit Board
PZ00120 Main
Control
Circuit Board
Backup AC
Input
Compartment
Four Snap-On
Standoffs in Corners
and one Screw to
Mount Circuit Board
Hardwire
Compartment
Cover

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 10
2. MAJOR COMPONENT/CIRCUIT DESCRIPTIONS
2.1 ATS SYSTEM ARCHITECTURE (See Figure 6)
Figure 6: ATS-500 System Architecture
2.2 ATS SERIES CIRCUIT BOARDS
2.21 Main Control Circuit Board Assemblies (See Figures 7 and 8)
Two main control circuit boards are used in the ATS Series. The PZ00120-5 is used in the
2000, 3000, 4000, 5000, 6000 and 7000 models, while the PZ00127-5 is used in the
models 8000 and 9000. The circuit board assemblies are mounted to the chassis by
means of four (4) snap-on standoffs and one M3x0.5 Screw, see Figures 5, 7 and 8.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 11
Figure 7: PZ00120-5 Main Control Circuit Board Assembly for ATS-500-2000, -
3000, -4000, -5000, -6000 and -7000 models
Circuit Board
Mounting
Holes for
Snap-On
Standoffs
Circuit Board
Mounting
Holes for
Snap-On
Standoffs
Circuit Board
Mounting
Hole for
M3x0.5 PHP
Screw
JP1 (HIGH)
or JP2
(LOW))

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 12
Figure 8: PZ00127-5 Main Control Circuit Board Assembly for ATS-500-8000 and -
9000 models
2.22 DISPLAY CIRCUIT BOARD ASSEMBLY (See Figure 9)
Three colored LEDs are located on the right side of the front panel of the ATS housing
and attached by means of a ribbon cable and connector to the main control board.
These LEDs, as shown in Figure 3 and 12 signify the following:
•Green “Primary” LED, ON, indicates Primary is driving the output.
•Yellow “Backup” LED, ON, indicates Backup is driving the output.
•Absence of either primary or backup AC source will be indicated by a red “Alarm”
LED indicator and audible buzzer (beeper) alarm.
Circuit Board
Mounting
Holes for
Snap-On
Standoffs
(4 Corners)
Circuit Board
Mounting Hole
for M3x0.5 PHP
Screw
JP1 (HIGH)
or JP2 (LOW)

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 13
Note: The audible alarm can be turned off by setting the Audible Alarm switch, located
on the front panel, to the “OFF” position, see Figure 3.
Figure 9: ATS Series Display Board Assembly
2.23 DB-9 ALARM PORT ASSEMBLY (See Figure 10)
Signals can be transmitted by means of the DB-9 connector in the rear of the ATS unit that
provide for remote monitoring of alarms. See Figures 4 and 5. Pin assignments are outlined in
section 4.3.
Figure 10: DB-9 Alarm Port Assembly
2.3 INPUT/OUTPUT CIRCUIT BREAKERS (See Figure 11)
One two-pole circuit breaker (located in the rear of the unit) connects the Primary AC to
the ATS unit and another two-pole circuit breaker connects the Backup AC to the ATS
unit.
Primary AC
Green LED
Indicator
Backup AC
Yellow LED
Indicator
No Primary or
Backup AC
Input Red LED
Alarm
Connectorized
Ribbon Cable
to Main Control
Board

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 14
Note: If the output load current exceeds 125% of the circuit breaker ratings (15, 20, 30 or
40 A), then the input circuit breaker(s) will trip and prevent the possibility of overheating
of the components or wires inside the ATS Series units. Reduce the load if the circuit
breaker trips. If the circuit breaker trips, even without any load, then there is a faulty
component on the board assembly. The Board assembly must then be repaired at the
factory (or replaced in the field).
P/N FC00114-15 A & P/N FC00116-30 A Breaker P/N FC00065-40 A
Breaker P/N FC00115-20 A Breaker
Figure 11: Primary & Backup Type AC Input Two-Pole Circuit Breakers-15, 20, 30 &
40 A
2.4 AUDIBLE ALARM SWITCH (See Figure 12)
Figure 12: Audible Alarm On/Off Switch
3. INSTALLATION
3.1 SITE SELECTION & PREPARATION
•This product is intended for installation in “A PROTECTED ENVIRONMENT
ONLY”.
IMPORTANT: ONLY QUALIFIED PERSONNEL SHOULD PERFORM THE
INSTALLATION OF THIS PRODUCT.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 15
•The ATS Series is designed to be mounted in a rack, on a horizontal surface
such as a desk, or a floor or wall using the optional MK-5000C brackets with
hardware.
- The ATS must be protected by an upstream branch circuit protector, for
both the Primary and the Backup, at 125% of the ATS current rating (the
maximum input current rating as shown on the ATS product label) per the
National Electric Code or per local electrical codes if outside of the United
States.
•Note the following if an ATS without internal circuit breakers is being
installed;
- For permanently connected equipment, a readily accessible disconnect
device shall be incorporated external to the equipment.
- For pluggable equipment, the socket-outlet shall be installed near the
equipment and shall be easily accessible.
CAUTION: THE UNIT MUST BE PLACED IN A WELL - VENTILATED AREA TO
PREVENT RISK OF FIRE DUE TO OVERHEATING. VENTILATION SLOTS MUST
NOT BE OBSTRUCTED.
•Select an area with enough space to provide sufficient clearance around
the unit to provide unrestricted access.
3.2 REQUIRED TOOLS
•Set of standard hand tools
•Wire stripper (for hardwired units)
3.3 UNPACKING & INSPECTION
3.31 The units are shipped in individual cartons and may come stacked on wooden
pallets depending on the size of the order. In this configuration, the units are
placed on the pallet, with protective material between them.
3.32 Carefullyopen the cartons, making sure not to damage the units, and remove the
protective wrap and packing material.
3.33 Before the units are removed from the cartons, inspect them for physical damage.
3.34 If no damage is found, remove the units from the carton, open the top cover and
again inspect for damage. If damage is found in either steps 3.33 or 3.34, do not
accept the shipment and file a claim with the carrier. Contact TSi Power for
assistance if necessary.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 16
3.4 VOLTAGE SELECTION
3.41 If you have a 208, 220 or 240 V ATS the voltage selection can be changed. The
factory setting is either set to HIGH (220 to 240 V) or LOW (208 V) depending on
what ATS model was ordered. If the factory preset is not desired, performing the
following steps will change the voltage transfer points.
3.42 Make sure both Primary and Backup AC sources to the ATS are de-energized.
3.43 Remove the ATS case cover.
3.44 Locate the jumper at JP1 (HIGH) or JP2 (LOW). See Figures 7 or 8.
3.45 To change the voltage selection simply move the Jumper from the JP1 (HIGH) to
JP2 (LOW) position or JP2 (LOW) to JP1 (HIGH) position (depending on the factory
preset of your ATS).
3.46 Replace ATS case cover.
3.5 INSTALLING THE ATS-500 SERIES
3.51 After the unit has been unpacked and inspected, attach any mounting brackets
that may have optionally been ordered to the ATS using the MC4000C for Wall or
Floor-Mount kits, not shown. If mounting brackets have not been ordered, place
the unit at the desired location near the load. Make sure that the unit has sufficient
surrounding space to provide ample air movement for ventilation.
3.6 CONNECTIONS (HARDWIRE VERSIONS)
NOTES:
1) Torque terminations for 15, 20 or 30 A units are 0.79 Nm ( 7 in-lb) and for the 40 A
units are 2.26 Nm (20 in-lb).
2) Be sure to follow electric safety and installation codes in the country of use.
3.61 Make sure that the up-stream Primary and Backup AC sources are de-energized
(switched OFF).
3.62 Incoming Primary and Backup Power Input, as well as, AC Power Output is
through the circular hole in the rear plate of the unit. Remove the rear plate and
save hardware before proceeding.
3.63 For units w/15 A Circuits Breakers use minimum 14 AWG (2.5mm²) wire [preferably
12 AWG (4mm²)]

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 17
For units w/20 A Circuit Breakers use minimum 12 AWG (4mm²) wire [preferably 10
AWG (6mm²)]
For units w/30 A Circuit Breakers use minimum 10 AWG (6mm²) wire [preferably 8
AWG (10mm²)]
For units w/40 A Circuit Breakers use minimum 8 AWG (10mm²) wire
For both power and earth conductors, TSi Power also recommends using stranded
copper wire with a 105 °C insulation system.
3.64 Allow for sufficient wire length to reach the wiring terminals and leave enough
slack to reduce the stress in the wires. Note: Two wires plus ground are required
for primary and backup input and ATS output.
3.65 Strip approximately 3/8" (10 mm) insulation from the end of each of the three (3)
sets of wires and terminate them in the wiring terminals as follows.
3.66 Using a slotted screwdriver,terminate the incoming primary wires on the terminal
blocks behind the rear cover marked “Primary Input”. These terminals are marked
as follows:
•LI for primary input line (or L1in for primary input phase 1)
•NI for primary input neutral (or L2in for primary input phase 2)
•PE for primary input protective earth (European systems);G for primaryinput earth
ground (North-American systems)
3.67 Using a slotted screwdriver,terminate the incoming backup wires on the terminal
blocks behind the rear cover marked “Backup Input”. These terminals are marked
as follows:
•LI for backup input line (or L1in for backup input phase 1)
•NI for backup input neutral (or L2in for backup input phase 2)
•PE for backup input protective earth (European systems);G for backup input earth
ground (North-American systems)
3.68 Using a slotted screwdriver, terminate the outgoing wires on the terminal blocks
behind the rear cover marked “AC Output”. These terminals are marked as follows:
•LO for AC output (or L1out for AC output phase 1)
•NO for AC neutral output (or L2out for AC output phase 2)
•PE for output protective earth (European systems); G for output earth ground
(North-American systems)

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 18
3.69 Carefully insert each wire into the appropriate slot, taking care to ensure that all
strands are inserted properly. Tighten the terminal screw using a slotted
screwdriver and torque the terminations for the 15, 20 or 30 A units 0.79 Nm (7
in-lb) and for the 40 A are 2.26 Nm (20 in-lb). Perform a pull test to make sure the
connection is secure. Do not apply excessive torque to make sure that the
terminal screws are not damaged. Note that failure to follow these instructions
can lead to malfunction or short circuit.
4. POWERING UP THE ATS SERIES
4.1 START-UP & FUNCTIONAL (ELECTRICAL) TEST PROCEDURE
(1) Connect (or plug-in) both the Primary and Backup AC input connections (if using
a hardwired ATS model this was performed during step 3.6) and energize (turn on) the
upstream Primary and Backup AC sources.
Important Note: Make sure that both Primary and Backup AC input voltages and
frequencies match those specified on the product label affixed to
the ATS unit (see Figure 4). The ATS will only operate when the
input voltage is within ± 10 % and when the input frequency is
within ± 5 % of that specified. Both primary and backup must be the
same nominal frequency.
(2) Turn on the Backup AC circuit breaker in the rear of the ATS unit. Make sure that
the audible alarm switch (in front of the ATS unit) is in the “ENABLE” position.
(3) The yellow LED should turn on and the alarm sound must turn ON (red alarm LED
must turn on; green LED must be OFF).
(4) Turn on the Primary AC input circuit breaker in the rear of the ATS unit.
(5) The green LED must turn on after several seconds. The yellow LED, red LED and
alarm (sound) must turn off.
(6) Turn off the Primary AC input circuit breaker. The green LED must turn off. The
yellow Backup LED must turn ON and the red alarm LED and alarm (sound) must turn
ON.
(7) Turn on the Primary AC input circuit breaker. After several seconds, the ATS must
return to the normal operating condition as noted in (5).
(8) Turn off the Backup AC input circuit breaker.
(9) The green LED must remain ON and the red alarm LED and alarm sound must
turn ON (the yellow LED will already be OFF if the unit is operating from the Primary AC
source).
(10) Turn on the Backup input circuit breaker. After several seconds, the ATS must
return to the normal operating condition as noted in (5).

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 19
4.2 TESTING WITH ACTUAL LOAD EQUIPMENT (SUCH AS COMPUTERS, PLC,
TELECOM EQUIPMENT, ETC.)
If the above test steps (1) through (10) are performed and the ATS is functioning
properly, then actual load equipment can be connected to (or plugged into) the
output terminal block (or computer can be connected (or actual equipment to be
powered by the ATS Series).
CAUTION: To avoid electric shock or accidents, ensure that both Primary &
Backup AC sources are de-energized before making the wire connection to the AC
sources.
4.3 REMOTE STATUS / ALARM MONITORING
4.31 A DB-9 female connector in the rear of the unit provides status /alarm signals for
remote monitoring of the status of the ATS.
Primary AC Input Status DB-9 Pins are: _5__NO _1__NC__2_COM
Backup AC Input Status DB-9 Pins are: _6__NO _3__NC _4__COM
4.32 When Primary AC Input is present and IN SPECIFICATION, there is an OPEN circuit
between pin_5 and pin 2 . When Primary AC input is OUT OF SPECIFICATION, there is
a CLOSED circuit between pin 5 and pin 2 .
4.33 When Backup AC Input is present and IN SPECIFICATION,there is an OPEN circuit
between pin_6_and pin _4_. When Backup AC input is OUT OF SPECIFICATION, there
is a CLOSED circuit between pin 6 and pin 4 .
4.34 Maximum voltage and current that can be used for monitoring the status and
alarm of the ATS Series is 120 VDC (VAC), 1 A (maximum DB-9 connector rating).
5. REPAIRS & SERVICE
5.1 ATS SERIES FIELD REPAIR (RECOMMENDED REPLACEMENT PARTS)
The ATS Series is designed to facilitate quick replacement of circuit boards in the field.
Therefore, troubleshooting procedures described in this manual are limited to visual
inspection and circuit board replacement only. Actual component-level
troubleshooting, repair and calibration require the completion of a full training course
at TSi Power. For most customers, the most cost-effective way to repair it is to simply
replace the board assembly. Spare parts can be ordered from TSi Power directly. The
Replacement Parts Table below provides correct part numbers and descriptive
information. Please contact TSi Power prior to ordering so that the correct parts for each
particular version of the ATS-500 Series will be available.

TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information 20
TABLE of RECOMMENDED REPLACEMENT PARTS
Part
Number
Description
Comments
PZ00120-
5
Main Control Board assembly for ATS-500-
2000, -3, -4, -5, -6 or -7000 models
Customer must provide voltage,
amperage & Frequency options
PZ00127- 5
Main Control Board assembly for ATS-500
-8000, -9000, -9800 and -9900 models
Customer must provide voltage,
amperage & Frequency options
PZ00115-1
Display Board assembly for ATS Series
WA04013
Alarm port assembly for ATS Series
SE00002
Audible Alarm Switch for ATS Series
FC00114
Circuit Breaker (250 V, 15 A)
ATS-500-2000,-3000 Models
FC00115
Circuit Breaker (250 V, 20 A)
ATS-500-4000,-5000 Models
FC00116
Circuit Breaker (250 V, 30 A)
ATS-500-8000,-9000 Models
FC00065
Circuit Breaker (250 V, 40 A)
ATS-500—3900,-5900,-7900,-
8000,
-9000 and -9900 Models
5.2 RETURNING DEFECTIVE CIRCUIT BOARD(s) FOR REPAIR
•Contact TSi Power via telephone, fax or e-mail to obtain a Return Material
Authorization number (RMA). TSi Power requires the 8 digit serial number in
the order to determine the warranty status of the unit and to issue a correct
RMA number.
•Make sure that returned circuit boards are properly protected with anti-static
bubble packs and packed in a sturdy shipping box.
•Mark shipping box with RMA number, using indelible marker pen. Shipping
costs, duty and brokerage costs are the responsibility of the customer.
5.3 INVENTORY RECOMMENDATIONS for CUSTOMERS w/LARGE NUMBERS OF
ATS UNITS
Since a board exchange is the quickest way to repair an ATS Series failed circuit
board, TSI recommends that customers keep at least 3-5% (one board for every
20 or 30 ATS units) in spare boards.