TSi Power ATS-800 Series User manual

Operating Manual for ATS-800 Automatic Transfer Switch:
MC80043 –Hardwire 120 V-800-2000,-4000,-6000,-8000(15,20,30, 40 A)
MC80044 –Plugs & Receptacles 120 V-800-200x,-400x(15,20 A)
MC80045 –IEC 230 V-800-3904,-5904(15,20 A)
MC80046 –Plugs & Receptacles 208 V-800-380x and -580x(15,20 A)
220, 240 V-800-300x and-500x(15,20A)
MC80047 –Hardwire 208 V-800-3800,-5800,-7800 and -9800 (15,20,30,40 A)
220, 240 V-800-3000,-5000,-7000 and -9000 (15,20,30,40 A)
MC80048 –Hardwire 230 V-800-3900,-5900,-7900 and -9900(15,20,30, 40 A)
MC80049 –Hardwire input, IEC output 208, 220, 240 V-800-3011,-5011(15,20 A)
MC80050 –Hardwire input, IEC output 230 V-800-3911,-5911 (15,20 A)
MC80043,4,5,6,7,8,9,50
Rev. 3, April, 2018
SAVE THESE INSTRUCTIONS – This manual contains important instructions for the ATS
Series that should be followed during installation and maintenance.

TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
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 ............................................................................10
2. MAJOR COMPONENT/CIRCUIT DESCRIPTIONS 12
2.1 ATS Series System Architecture ............................................................12
2.2 ATS Circuit Boards.................................................................................12
2.3 Input / Output Circuit Breakers ...............................................................16
2.4 Audible Alarm Switch..............................................................................16
3. INSTALLATION 16
3.1 Site Selection & Preparation…………………………………………………16
3.2 Required Tools…………………………………………………………………17
3.3 Unpacking & Inspection..........................................................................17
3.4 Voltage Selection………………………………………………………………17
3.5 Installing the ATS-800 Series................................................................. 18
3.6 AC Connections (Hardwire Versions)……………………………………….18
4. POWERING UP THE ATS SERIES 20
4.1 Start-Up & Functional (Electrical) Test Procedure..................................20
4.2 Testing w/Actual Load Equipment (Computer).......................................21
4.3 Remote Status / Alarm Monitoring..........................................................21
4.4 Remote Enable Function……………………………………………………..21
5. REPAIRS & SERVICE 22
5.1 ATS Series Field Repair (Recommended Replacement Parts)...............22
5.2 Returning Defective Circuit Board(s) for Repair......................................22

TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
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5.3 Inventory Recommendations for Customer w/Large Numbers of ATS
Units…………………………………………………………………………….22
6. REFERENCE 23
6.1 Specifications.........................................................................................23
6.2 Product Configurations...........................................................................31
6.3 TSi Power Contact Information………………………………………………32

TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
TSi Power Corporation Proprietary Information 4
COPYRIGHT
Copyright © 2018 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-800-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 themodel name andserial 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 December, 2015 Initial release
1 February, 2015 Revised Paragraph 4.32 and 4.33
2 November, 2015 Updated model lineup
3 April, 2018 Added 40 A to MC80043, 47 and 48

TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
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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 typically ½ cycle (or ~8 ms) for 60 Hz and
typically ½ cycle (or ~9.7 ms) for 50 Hz. Upon return of primary power, the ATS will switch back
in typically ½ cycle (or ~8 ms) for 60 Hz and typically ½ cycle (or ~9.7 ms) for 50 Hz. 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 (with Hardwire Cover shown in
Rear)

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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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-800 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.
• ~8 to ~9.7 millisecond (ms) transfer time between sources is fast enough for even
the most sensitive loads.
• Audible alarm with enable / disable switch provides for unattended security.

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• 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 front rack mounted to 19" racks by means of integral
rack mount ears. For other mounting options consult your local TSi sales associate.
•AC Inputs are galvanically isolated.
1.4 OVERALL DIMENSIONS
The ATS-800 enclosure dimensions are 16.63" (422 mm) wide x 1.7" (43 mm) high x 9"
(229mm) deep for Plugs and Receptacles units and 10.5" (267 mm) deep for Hardwire units
–see Fig. 3.
Figure 3: ATS-800 Dimensions for Hardwire Units Shown (black polyester coating shown)
Audible Alarm
On/Off Switch
Green, Yellow & Red
Status Indicator LEDs
19.02" (483 mm)
83mm
16.63"
(422 mm)
1.7" (43
mm)
1.5
(38.1
mm)
9"
(229 mm)

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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1.5 CONSTRUCTION
The ATS-800 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, 5, 6, 7 AND 8
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-800-4000 hardwire unit) –See Figure 4.
Figure 4: ATS-800-4000 Hardwire top-cover label showing rear
compartments/components
DB-9 Alarm
Interface
AC Output
Location
Backup
Input
Location
Primary
Input
Location
Backup
Input
Breaker
Primary
Input
Breaker

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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DB9
Connector
Hardwire Connection
Cover
Backup Input
Breaker
Primary Input
Breaker
DB9
Connector
Backup
Input
Backup Input
Breaker
Primary Input
Breaker
Primary
Input
AC
Output
1.62 REAR VIEW OF MC80043 UNIT WITH HARDWIRE INPUT AND OUTPUT
CONNECTIONS COVER (See Figure 5)
Figure 5: Rear view of ATS-800-6000 Hardwire unit showing DB9 connector, Primary and
Backup circuit breakers and cover over Hardwire connections
1.63 REAR VIEW OF MC80044 UNIT WITH PLUGS AND RECEPTACLES (See Figure 6)
Figure 6: Rear View of ATS-800-2002 Plugs and Receptacles unit showing DB9
connector, Primary and Backup circuit breakers, two 5-15P Input Cord Plugs
and four 5-15R AC Output Receptacles

TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
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DB9
Connector
Backup
Input
Backup Input
Breaker
Primary Input
Breaker
Primary
Input
AC
Output
1.64 REAR VIEW OF MC80045 UNIT WITH IEC PLUG AND RECEPTACLES (See Figure 7)
Figure 7: Rear View of ATS-800-3904 Plugs and Receptacles unit showing DB9
connector, Primary and Backup circuit breakers, two IEC60320 C14 Input
Plugs and four IEC60320 C13 AC Output Receptacles
1.7 COMPONENT LOCATIONS
1.71 TOP VIEW WITH COVER REMOVED (See Figure 8)
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 8).

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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Figure 8: Top-Down Rear view showing Hardwired ATS-800 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 and one
Screw to Mount
Circuit Board
Hardwire
Compartment
Cover

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2. MAJOR COMPONENT/CIRCUIT DESCRIPTIONS
2.1 ATS SYSTEM ARCHITECTURE (See Figure 9)
Figure 9: ATS-800 System Architecture
2.2 ATS SERIES CIRCUIT BOARDS
2.21 Main Control Circuit Board Assemblies (See Figures 10 and 11)
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 8, 10 and 11.

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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Figure 10: PZ00120-5 Main Control Circuit Board Assembly for ATS-800-2000, -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
JP13 (ATS
ENABLE)
JP1 (HIGH)
or JP2 (LOW)
ENABLE)

TSi Power Corporation MC80043,4,5,6,7,8,9,50
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Figure 11: PZ00127-5 Main Control Circuit Board Assembly for ATS-1000-8000 and -
9000 models
2.22 DISPLAY CIRCUIT BOARD ASSEMBLY (See Figure 12)
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
JP13
(ATS ENABLE)
JP1 (HIGH)
or JP2 (LOW)

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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 12: ATS Series Display Board Assembly
2.23 DB-9 ALARM PORT ASSEMBLY (See Figure 13)
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 8 and 13. Pin assignments are outlined in section 4.3.
Figure 13: PZ00129 DB-9 Alarm Circuit Board Assembly
2.3 INPUT/OUTPUT CIRCUIT BREAKERS (See Figure 13)
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.
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
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

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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 14: Primary & Backup Type AC Input Two-Pole Circuit Breakers-15, 20, 30 & 40 A
2.4 AUDIBLE ALARM SWITCH (See Figure 15)
Figure 15: P/N SE00002 Audible Alarm On/Off Switch
3. INSTALLATION
3.1 SITE SELECTION & PREPARATION
•This product is intended for installation in “A PROTECTED ENVIRONMENT
ONLY”.
•The ATS Series is designed to be mounted in a rack.
•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.
IMPORTANT: ONLY QUALIFIED PERSONNEL SHOULD PERFORM THE
INSTALLATION OF THIS PRODUCT.

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- For pluggable equipment, the socket-outlet shall be installed near the
equipment and shall be easily accessible.
- 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.
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 Carefully open 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.
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.

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3.44 Locate the jumper at JP1 (HIGH) or JP2 (LOW). See Figures 10 or 11.
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-800 SERIES
3.51 After the unit has been unpacked and inspected, use the integral 19" rack-mount ears
and mount the unit as shown in Figure 16 using the #10-32 UNF that have been provided.
If customer has metric equivalent rack holes, M5X.8 screws should be used.
Note: Make sure that the unit has sufficient surrounding space to provide ample air
movement for ventilation. The ATS-800 is not ordinarily intended for use in a
stacked configuration with other ATS-800 units, although this can be done with
care. In the event a stacked installation is planned, please contact TSi Power for
assistance.
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)]
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

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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); Gfor primary input 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); Gfor 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); Gfor output earth ground (North-
American systems)
•
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.

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Figure 16: 19" Rack-Mounting of the ATS-800 Series
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.
Front 19" Rack-Mount