American Power Conversion 250 A User Manual
Operation
InfraStruXure
Generation System
TM
Power
250 A
208/480 V
About This Manual
Audience
This manual is intended for users of the InfraStruXure™ Smart Distribution Panel with Automatic
Transfer Switch (ATS). It provides important safety warnings and instructions, an overview of the
ATS components, a detailed discussion about the ATS display interface, instructions on how to add
components to the ATS, and technical specifications.
Companion manuals
For additional information about your InfraStruXure Power Generation System, refer to the
following sheets and manuals. The initial part numbers are listed below. Be aware that some of the
documentation may have undergone one or more revisions (A, B, etc.):
• ATS Unpacking Sheet (990-1842)
• Electrical Installation Manual (990-1844)
• Generator Reference Manual (990-1846)
• Network Management Interface User’ s Guide (available on the APC Web site or the Utility CD)
(990-1993)
How to find updates to this manual
You can check for updates to this manual by clicking on the User Manuals link on the Support page
of the APC Web site (www.apc.com). Choose Power Generation and then InfraStruXure Power
Generation. From the list of InfraStruXure Power Generation manuals, look for the latest letter
revision (A, B, etc.) of the initial part number app earing on the back cover of this manual (990-1845).
InfraStruXure Power Generation System i
Contents
Safety ......................................................................1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Save these instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety symbols used in this manual . . . . . . . . . . . . . . . . . . . 1
Cross-reference symbols used in this manual . . . . . . . . . . . . . 1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The I nf ra S tr u X u r e P o w e r G e n e r a t i on S y ste m
is an optional standby system
Wire sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Total power off procedure . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
. . . . . . . . . . . . . . . . . . . . . . . 2
Overview .................................................................5
InfraStruXure Power Generation System . . . . . . . . . . . . . . . . . . 5
How the InfraStruXure Power Generation System Operates . . . . 6
Operation of the ATS during a utility failure
when automatic operation is enabled
Generator start sequence . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Generator cool-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Open and closed transfers . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fuel monitoring/runtime calculation . . . . . . . . . . . . . . . . . . . 9
Smart Distribution Panel with ATS . . . . . . . . . . . . . . . . . . . . . . 11
Front view, door closed . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Front view, door open . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ATS panel board, left side . . . . . . . . . . . . . . . . . . . . . . . . . 13
ATS panel board, right side . . . . . . . . . . . . . . . . . . . . . . . . 14
. . . . . . . . . . . . . . . . . . 6
InfraStruXure Power Generation System iii
ATS Component Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Motorized switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Automatic operation control panel . . . . . . . . . . . . . . . . . . . 16
User connection plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ATS monitoring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ATS label kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation ............................................................. 19
Automatic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
How to place the InfraStruXure Power
Generation System in automatic operation
How to reset automatic operation on
the ATS and on the generator
Problem—loss of automatic operation . . . . . . . . . . . . . . . . 21
. . . . . . . . . . . . . . . . . . . . . . 20
Emergency Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warning—before you operate the ATS manually . . . . . . . . . 22
How to power the load from the generator . . . . . . . . . . . . . 23
How to return to powering the load from utility . . . . . . . . . . 25
. . . . . . . . . . . . . 19
Total Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Display Interface.................................................... 29
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Top-level status screens . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Top-level menu screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Navigating through screens . . . . . . . . . . . . . . . . . . . . . . . 31
Password-protected screens . . . . . . . . . . . . . . . . . . . . . . . 31
Load-Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Total Load by Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Total Load Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
ATS/Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
ATS Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
S1-Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
S2-Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
ATS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Generator Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
iv InfraStruXure Power Generation System
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
View Test Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Run/View Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Test Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Test Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
How a test occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Stats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
View Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Alarm/Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Alarm Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Alarm Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Clearing latched alarms . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Config. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
System/Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Contacts & Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Electrical Config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Manufacturer Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
System ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Firmware Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Reset 100% Fuel Level . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Communication Configuration................................49
ATS Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
InfraStruXure Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Network management interfaces . . . . . . . . . . . . . . . . . . . . 49
Configuring the InfraStruXure Manager . . . . . . . . . . . . . . . . . . 50
Connect the ATS to the InfraStruXure Manager . . . . . . . . . . . 50
InfraStruXure Power Generation System v
Configuring the ATS Network Management Interface. . . . . . . . 51
Connect the ATS to your network . . . . . . . . . . . . . . . . . . . 51
Configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . 52
TCP/IP configuration methods . . . . . . . . . . . . . . . . . . . . . . 52
Device IP Configuration Wizard . . . . . . . . . . . . . . . . . . . . . 52
BOOTP & DHCP configuration . . . . . . . . . . . . . . . . . . . . . . 53
Local access to the control console . . . . . . . . . . . . . . . . . . 55
Remote access to the control console . . . . . . . . . . . . . . . . . 55
Control console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
How to Access the ATS Network Management Interface. . . . . . 57
Web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Telnet and SSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
FTP and SCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
How to Recover From a Lost Network
Management Interface Password . . . . . . . . . . . . . . . . . . . . . . . 60
Customizing and Updating the ATS ....................... 61
How to Connect User Input Contacts and
Relay Outputs to the ATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
How to connect contacts to the user interface board . . . . . . 62
How to Connect an EPO Switch to the ATS . . . . . . . . . . . . . . . 63
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Connect an EPO switch to the user interface
board and test the switch
Safety warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
How to Allow Easy Access to the ATS Display Interface . . . . . . 67
How to Add Sub-Feed Output Distribution
Circuit Breakers to the ATS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Output distribution circuit breakers available from APC . . . . . 68
Circuit breaker adapter modules available from APC . . . . . . . 69
Determine the configuration of the panel . . . . . . . . . . . . . . 69
Allowed circuit breaker combinations . . . . . . . . . . . . . . . . . 70
Preparing the breakers for installation . . . . . . . . . . . . . . . . 72
Parts and tools needed for installation procedures . . . . . . . . 73
Installing breakers on the ATS panel bus . . . . . . . . . . . . . . . 74
. . . . . . . . . . . . . . . . . . . . . . . . . 64
vi InfraStruXure Power Generation System
How to Download Firmware Updates . . . . . . . . . . . . . . . . . . . 76
From a local computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Specifications .........................................................77
Smart Distribution Panel with ATS . . . . . . . . . . . . . . . . . . . . . . 77
Appendix: Custom Installations ..............................81
If Source 2 is a Second Utility. . . . . . . . . . . . . . . . . . . . . . . . . . 81
Differences in your system from information
presented in this manual
. . . . . . . . . . . . . . . . . . . . . . . . . 81
If Source 2 is a Generator that i s
Not an APC InfraStruXure Generator . . . . . . . . . . . . . . . . . . . . 82
Differences in your system from information
presented in this manual
. . . . . . . . . . . . . . . . . . . . . . . . . 82
Index .....................................................................83
InfraStruXure Power Generation System vii
Safety
y
Overview
Save these instructions
This manual contains important instructions that must be followed during installation, operation, and
maintenance of the InfraStruXure Power Generation System.
Safety symbols used in this manual
Indicates an electrical hazard, which, if not avoided, could result in injury or
Electrical
DANGER
death.
Indicates a hazard, which, if not avoided, could result in severe personal injury or
substantial damage to product or other property.
Indicates a potential hazard, which, if not avoided, could result in personal injury or
damage to product or other property.
Caution
Indicates a heavy load that should not be lifted without assistance.
Heav
Indicates important information.
Note
Cross-reference symbols used in this manual
Indicates that more information is available on the same subject in a different section of
this manual.
Indicates that more information is available on the same subject in a different manual.
See also
InfraStruXure Power Generation System 1
Warnings
The components in the InfraStruXure Power Generation System can pose life-threatening danger
when improperly installed, operated, or maintained. To prevent accidents, be aware of the dangers
and act safely . Read and follow all of the safety instructions and warnings i n this manual and in all of
your component manuals.
The InfraStruXure Power Generation System is an optional standby system
The Generator and Automatic Transfer Switch (ATS) that you purchased from APC is classified as an
Optional Standby System because it provides backup or standby power to data centers in the event of
a sustained power failure.
The InfraStruXure Power Generation System is not to be classified as an Emergency System that is
essential for safety to human life (e.g., fire pumps, operating room and life-support equipment in
hospitals) as legally required by municipal, state, federal, or other governmental codes.
The InfraStruXure Power Generation System is not to be classified as a Legally Required Standby
System, as it is not supplying power to aid in fire fighting, rescue operations, control of health hazards
(e.g., sewage) and similar operations as required by municipal, state, federal, or other governmental
codes.
Emergency and Legally Required Systems are not allowed to rely on municipal fuel for operation, or
municipal water for cooling. Emergency and Legally Required Systems specify dual-fuel systems,
with one of them being a two-hour, on-site fuel supply.
Your InfraStruXure Power Generation System is not to be classified as an Integrated Electrical
System, as an orderly shutdown is not required to prevent damage to the generator. The generator is
not to be paralleled with another generator.
Your generator will operate at its rated load without being refueled for a minimum of six hours, and
should run with no load for a minimum of 12 hours.
Your generator can be without electrical power to the load terminals of the ATS for a maximum of 60
seconds, but will typically be without power for no more than 10 seconds.
Wire sizing
This product was designed to include an APC-manufactured 250-amp ATS. All wiring
recommendations were sized for this amperage in accordance with the National Electrical Code
(NEC). However, this does not prevent you from using the ATS at a lower amperage with smaller
wire sizes. If you decide to operate this ATS at a lower amperage, ensure that the wire sizes are in
accordance with NEC guidelines and your local codes.
2 InfraStruXure Power Generation System
Installation
For complete installation instructions, refer to the Electrical Installation Manual.
See also
Install the ATS in accordance with the National Electrical Code (NFPA 75) in the United S tates, or in
accordance with the Canadian Electrical Code (CSA C22.1-02) in Canada.
When connecting Source 1 power to the ATS, install an external circuit breaker to protect against
over-current conditions. The external circuit breaker must be rated at 250 A, with a symmetrical
ampere rating of 35,000 rms.
Total power off procedure
To reduce the risk of electric shock or injury to personnel, disconnect all sources of power supply
before servicing. To disconnect all sources of supply, follow this procedure:
Warnings
1. Set the Automatic Operation switch on the dead front of the ATS to Disable.
2. Set the Source 1 switch on the ATS to OFF.
3. Set the Source 2 switch on the ATS to OFF.
4. Set the main Source 1 circuit breaker to OFF.
5. Set the main Source 2 circuit breaker to OFF.
6. If Source 2 is a generator, set the generator control switch to OFF. If OFF is not an option, set
the generator control switch to Manual.
Operating environment
The ATS is designed for indoor use only; protect from water and conductive contaminants.
Temperature: 23 to 104°F (–5 to 40°C)
Humidity: 0–95%, non-condensing
Elevation: 6,562 ft (2000 m)
InfraStruXure Power Generation System 3
Overview
InfraStruXure Power Generation System
The InfraStruXure Power Generation System consists of a diesel-powered generator and a Smart
Distribution Panel with Automatic Transfer Switch (ATS). The ATS is connected to both the utility
(Source 1) and the generator (Source 2), with the utility as the preferred source. The ATS can
alternatively be connected to a second utility. The ATS is designed for installation on the data center
floor, which places power distribution closer to your data center equipment. Labels provide a quick
visual indication of which ATS sub-feed breaker is supplying power to each piece of equipment. The
diagram below provides examples of data center equip ment that can be connected to the ATS.
Air Conditioner Chiller
Air Conditioner
Condenser/OHE
Source 2
Generator
Air Conditioner
Circulator Pump
ATS
InfraStruXure System/
UPS and Distribution
InfraStruXure
Air Conditioner/
CRAC
Distribution
Panel
Source 1
InfraStruXure Power Generation System 5
Utility
Service Entrance Panel
How the InfraStruXure Power Generation
System Operates
Operation of the ATS during a utility failure when automatic operation is enabled
Your data center equipment
is typically powered by the
utility [Source 1] (
), while
the generator [Source 2]
remains off. When the level
Generator Stopped
Load
Powered by
Utility.
Generator
is Off
of incoming utility power
falls below a specified
threshold (
), the ATS
signals the generator to start
). After the generator
(
Generator
Cool-Down
starts and attains the
necessary power to support
the load, the ATS performs
an open transfer to the
generator (
).
The generator then continues
to support your data center
equipment (
) until an
Retransfe r to
Utility
(Open o r Cl osed)
Utility
Resto red
Load
Powered
by Generator
acceptable flow of utility
power is restored (
). The
utility power must remain
stable for a specified length of time (Line Stable setting) and the generator must run for at least the
duration of its minimum run-time (Min on Gen setting) before the load will be retransferred to the
utility (
generator cools down (
). The retransfer to the utility can be either open or closed. Following retransfer, the
) and eventually stops.
Generator Started
Generator Started
Open Transfe r
to Generator
Utility Failure
Generator
Start
Sequence
For more information.
See page 33 for a description of how the ATS determines the line quality is bad.
See page 7 for a detailed description of the generator start sequence.
See page 8 for detailed descriptions of open and closed transfers.
See page 7 for a detailed description of generator cool-down.
See page 35 for information about the Line Stable setting.
See page 35 for information about the Min on Gen setting.
6 InfraStruXure Power Generation System
How the InfraStruXure Power Generation System Operates
Generator start sequence
The generator start sequence is followed only if the Crank setting in the Operating Settings menu
on the Generator Settings screen on the ATS display interface is set to Yes. If enabled, the following
sequence will occur:
After a start signal is initiated, either by the ATS or manually, and the generator battery is good, the
generator engine will crank and the generator should start. If the generator does not start, it will crank
for the length of the Crank Time, and then rest for the length of the Rest Time. The generator will
repeat this pattern for the number of times set in Crank Cycles before discontinuing further attempts
to start. Check the messages on the display interface for reasons why the generator did not start.
On the generator controller interface, the LEDs track conditions during the start sequence:
LED Behavior on the Generator Controller Interface
Start sequence initiated: Generator Started: Generator Failed to Start:
Generator cool-down
After the generator has finished powering the load and utility power has been restored, the generator
will enter a 60-second cool-down period. NOTE: This 60-second cool-down period is a
recommendation from the generator manufacturer. The specified 60-second
cool-down period can
only be re-adjusted (at the ATS) by an APC service technician.
InfraStruXure Power Generation System 7
How the InfraStruXure Power Generation System Operates
Open and closed transfers
When transfers are not occurring, one switch is ON and one switch is OFF.
During a closed transfer, the second switch will turn ON before the first switch turns OFF, creating a
brief period of time when both switches are ON.
Closed Transfer
Source 1 Source 1 Source 2
Source 2
t=miliseconds
During an open transfer, the first switch will turn OFF before the second switch turns ON, creating a
period of time when neither source is connected. This period is commonly referred to as neutral time.
Neutral time is defined by the configurable Open Xfer Time.
Open Transfer
Source 1 Neutral Source 2
t=seconds
You can set whether or not to Allow Closed transfers under the Transfer Setup item on the ATS
Setup menu on the display interface (see page 35 for details about these settings). If the Allow
Closed setting is Yes, the ATS will always seek to perform closed transfers. In order for a closed
transfer to occur, the voltage and frequency for both sources must be acceptable and both sources
must be synchronized. The ATS monitors both sources for synchronization before transferring. If the
time it takes for the sources to become synchronized exceeds the configured Max Sync Time, the
ATS will perform an open transfer instead. During a closed transfer, the ATS also takes into account
the time it takes for the switch to actuate. This results in a seamless transfer in which non-UPSprotected equipment is uninterrupted and the UPS time on battery is reduced or even eliminated.
If the Allow Closed setting is No, the ATS will never perform closed transfers; it will only perform
open transfers (see page 35 for details about these settings).
8 InfraStruXure Power Generation System
How the InfraStruXure Power Generation System Operates
Fuel monitoring/runtime calculation
Fuel monitoring is a unique feature of the InfraStruXure Power Generation System. Fuel level is
monitored at the generator (if purchased through APC) and load is measured at the ATS. These
measurements are used to calculate runtime, as explained in the following paragraph:
Fuel is monitored by a level sensor in the generator fuel tank (calibrated to the bottom of the tank)
that changes readings every -inch of fuel-level change. From these fixed-level points, the ATS
counts the number of gallons of fuel used (based on load over time) and subtracts this amount from
the fixed-level fuel amount to provide an accurate estimate of fuel level. Runtime is then calculated
based on the fuel-usage rate at the current load and the remaining fuel in the tank. Once a new fuellevel point is reached, the value of the calculated fuel used is reset and the computation begins again.
The Fuel Level and Runtime Estimate are displayed on the Generator Status screen on the ATS
display interface. In addition, the following Fuel Alarm Limits are displayed in the Alarms menu.
Corresponding values can be set for these limits:
Percent Fill: If the amount of fuel as a percentage falls below this value, an alarm condition
exists.
Runtime: If the estimated runtime falls below this value, an alarm condition exists.
InfraStruXure Power Generation System 9
Smart Distribution Panel with ATS
Front view, door closed
Knockouts are provided on the roof, the
sides, and the floor of the ATS for
running utility and generator input wires
and for distributing power to equipment
in your data center . Co nn ectin g condu it
to the ATS does not require drilling. Use
a knockout punch to enlarge a knockout,
if necessary.
The user connection plate is attached to
the ATS monitoring unit. The plate can
be removed, simplifying access to input
contact, relay output, network, and EPO
connections. These connections can
likewise be routed through a knockout in
the plate (see “User connection plate” on
page 16 for more information) to avoid
wiring complications.
The bottom access panel can be
removed for better access to the panel
board. Use a #2 Phillips screwdriver to
remove the two M6 flat-head screws
securing the panel to the enclosure.
The perforated steel front door protects
against ready access to the switches, the
circuit breakers, and the display interface
(see page 29). To access the display
interface without opening the front door,
simply remove the display’s Plexiglas
covering (see page 67 for instructions).
InfraStruXure Power Generation System 11
Smart Distribution Panel with ATS
Front view, door open
Remove the dead front to
obtain access to the panel
board for maintenance and
wiring.
The Source 1 motorized
switch (see “Motorized
switches” on page 15)
controls operation of the
Source 1 input switch.
The automatic operation
control panel is used to set
the generator to automatic
operation or, alternatively, to
remove the generator from
automatic operation (see
“Automatic operation control
panel” on page 16).
The Source 1 lamp lights
green when the Source 1
switch is ON (closed).
The display interface
provides a local interface for
viewing status data,
configuring settings, and
operating the ATS. The
display interface has an LCD,
a five-button panel,
basic status lights, and a beeper (see “Display Interface” on page 29 for detailed information about the
contents and operation of each screen).
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The sub-feed output breakers provide power to equipment in the data center (see page 68 for
detailed information about installing these breakers).
The Source 2 lamp lights green when the Source 2 switch is ON (closed).
The Source 2 motorized switch (see “Motorized switches” on page 15) controls operation of the
Source 2 input switch.
Use the latches to open the dead front.
12 InfraStruXure Power Generation System
ATS panel board, left side
Smart Distribution Panel with ATS
The handle aids removal of the panel board
assembly from the ATS enclosure. At least
two people are required to remove the panel
board assembly (refer to the Electrical
Installation Manual for instructions).
The Source 1 fuse block regulates input to
the Source 1 control transformer for
subsequent powering of the Source 1
motorized switch and ATS monitoring unit.
The Source 1 control transformer outputs
120 VAC and 18 VAC to the Source 1
motorized switch and the ATS monitoring
unit after stepping down the 480 V or 208 V
input.
The communication converter allows the
generator and the ATS to communicate.
The ATS monitoring unit houses a central
board assembly that communicates with
several monitoring boards located
throughout the ATS (see “ATS monitoring
unit” on page 17 for detailed information).
Behind this access panel is the A TS interface
circuit board. Use a Phillips or standard
screwdriver to remove the panel.
The Source 2 input switch accepts input
wires from the generator (refer to the
Electrical Installation Manual for
connection instructions).
WARNING: Only a certified electrician
should connect the generator to the ATS!
This switch and fuse block regulate the 120 VAC supply to the generator for powering the
block heater and battery charger.
The wheel extensions on the panel board assembly allow removal of the assembly during
installation. Removing the panel board assembly makes it easier to pull wires into the ATS.
InfraStruXure Power Generation System 13
Smart Distribution Panel with ATS
ATS panel board, right side
The Source 1 input switch accepts input wires
from the utility (refer to the Electrical
Installation Manual for connection
instructions).
WARNING: Only a certified electrician
should connect utility power to the ATS!
Behind this access panel are the Source 1 volt-
sensing circuit board and the distribution panel
volt-sensing circuit board. Use a Phillips or
standard screwdriver to remove the panel.
The Source 1 current transformers monitor
the input current of each incoming phase from
the utility. The data gathered from these
transformers is displayed on the Total Load by
Phase screen, which is accessed through the
Load Meter menu on the display interface.
Behind this access panel is the Source 2 volt-
sensing circuit board. Use a Phillips or standard
screwdriver to remove the panel.
The Source 2 control transformer outputs
120 VAC and 18 VAC to the Source 2
motorized switch after stepping down the
480 V or 208 V input.
The Source 2 fuse block regulates input to the
Source 2 control transformer for subsequent
powering of the Source 2 motorized switch.
14 InfraStruXure Power Generation System
ATS Component Details
Motorized switches
The operating lever indicates the present
position of the motorized switch [OFF
TRIP, or O N (
)]. This lever is also used
(),
during manual operation of the switch (see
“Emergency Manual Operation” on page 22
for proper operating procedures).
The on/off selector allows the operator to
choose whether or not the motorized switch
controls the input switch. The selector should
only be used for the purpose of implementing
emergency manual operation (see page 21 for
more information).
Pressing the trip button immediately trips the
motorized switch. If this button is pressed
during automatic operation, the operating
lever will move to the OFF
() position.
WARNING: Do not press this button while
load is connected!
When the motorized switch is in the OFF
() position, attach a lock-out tag to the withdrawal
prevention lock for added safety.
The operating lever key is used during manual operation of the motorized switch to assist in
turning the operating lever. The key is provided in the hardware bag with the ATS.
Before operating the motorized switches, review “Emergency Manual Operation”
on page 22. Failure to follow proper procedures could cause personal injury or
DANGER
damage to the equipment.
InfraStruXure Power Generation System 15
ATS Component Details
Automatic operation control panel
For more detailed information concerning Automatic Operation of the InfraStruXure Power
Generation System, see “Automatic Operation” on page 19.
The Not in Automatic Operation
LED is lit when the ATS is NOT
in automatic operation. This
typically occurs when the
automatic operation switch is set
to Disable. In rare instances, the
Not in Automatic Operation
LED will be lit when the
automatic operation switch is in
the Enable position (see page 21
for more information).
Use the Automatic Operation switch to select whether the generator should automatically
turn on after a loss of power.
User connection plate
For location and description of the user connection plate, see number 2 on page 11. For clarity, the
plate is shown facing upwards, as opposed to its factory-installed downward-facing position. The
user interface board, the primary component on the plate, accepts most connections described below.
Connect the ATS to either the network
or the InfraStruXure Manager through
the surge-protected ethernet port. This
port protects your network connection
from power surges.
The user interface board has four input
contact connections for monitoring
Normally Open (NO) or Normally
Closed (NC) dry contacts (see page 46
and page 61 for more information).
The user interface board has four relay
output connections to accommodate
NO or NC dry contacts (see page 46 and
page 61 for more information).
Connect an Emergency Power-Off switch at one of th e three EP O connec tion choices:
24 VDC, 24 VAC, or contact closure (see page 63 for more information).
16 InfraStruXure Power Generation System
ATS monitoring unit
885-2288
LINK RX/TX
NETWORK
RESET
ARMED
EPO
STATUS
TRIPPED
TEST
NC
NO
10= G RN
100=ORN
DISPLAY
RS-232
ATS Component Details
This port connects to the Source 2 volt-sensing circuit
board, the Source 1 volt-sensing circuit board, the
Source 1 current transformers, and the distribution
panel volt-sensing circuit board.
This port connects to the ATS interface circuit board.
The display port (RJ-45) connects the monitoring unit
to the display interface.
The power LED indicates whether the monitoring unit
is receiving power.
The console port (DB-9) is used to configure items
12345678910111213
relating to servicing and for communication with the
generator (see item 4 on page page 13).
NOTE: A laptop computer can be connected to this
25 24 23 22 21 20 19 18 17 16 15 14
port for configurations.
The EPO DIP switches configure the EPO input for
the type of EPO switch that is connected: Normally
POW ER
Open (NO) or Normally Closed (NC).
When the EPO Arm/Test rocker is in the Test
position, engaging the EPO switch will not cause the
load to be shut down. When the rocker is in the Armed
9600-8-N-1
CONSOLE PORT
position, engaging the EPO switch turns OFF the ATS
Source 1 and Source 2 switches and engages the
generator’s emergency stop button. When the EPO
switch is engaged, the Not in Automatic LED on the
ATS is lit (see page 64 for more information about
testing the EPO switch).
The EPO Armed LED is lit green when the rocker is in the Armed position. The LED is dark when
the rocker is in the Test position.
The EPO Tripped LED is lit red when the EPO switch is engaged (the EPO button is pressed),
regardless of the state of the EPO Arm/Test rocker.
The reset button resets the network processor; it does not reset the ATS or the monitoring unit.
The network port connects to the surge-protected ethernet port on the user connection plate (see
page 16 for more information about the surge-protected ethernet port).
This port connects to the ATS interface circuit board.
The optional User/EPO Contacts port is connected to the user interface board on the user connection
plate attached to the roof of the ATS. This port supports relay outputs (4), input contacts (4), and one
EPO input (see page 16 for more information).
InfraStruXure Power Generation System 17
ATS Component Details
ATS label kit
ATS Label—Place this label on the outside of the ATS enclosure to
identify the ATS, and to associate it with the appropriate source: either
Source 1 or Source 2.
Source Label—Use a Source 1 label at the primary utility breaker to
identify which ATS it is feeding. Use a Source 2 label in instances
where a secondary utility breaker is employed instead of a generator.
Generator Label—Use these labels (3 total) at the generator to identify
which ATS it is feeding. Place one label on each long side of the
generator near the brand name labels, and place one label on the door
where the generator controller is located.
Single-Pole Label—Use these labels with each single-pole breaker on
the ATS distribution panel to identify which data center equipment it is
feeding. Use the marker (supplied) to write on the label.
Three-Pole Breaker Label—Use these labels with each three-pole
breaker on the ATS distribution p ane l to identify which data center
equipment it is feeding. Use the marker (supplied) to write notes on the
lower portion of the label. The labels are customized for typical
components in an InfraStruXure system. Blank labels are also included
for components that do not have pre-marked labels.
Front Bezel Label—If not employing a generator for Source 2, use one
of these labels to replace the Generator Power System label on the lefthand side of the bezel. Y ou can use either the Automatic T ransfer Switch
or the Standby Power System label to describe your system.
ATS Dead Front Source Label—Use these alternate labels for Source
1 and Source 2 if you do not want Utility and Generator to describe
your sources. These labels allow you to use Primary and Secondary or
Normal and Alternate to describe Source 1 and Source 2.
18 InfraStruXure Power Generation System
Operation
Automatic Operation
How to place the InfraStruXure Power Generation System in automatic operation
1. Ensure utility power is available. If the utility is not available, the ATS will signal the generator
to start.
2. Ensure the
3. Set the ATS Automatic Operation switch to Enable.
/Manual/Auto switch on the generator control panel is in the Auto position.
4. Ensure the Not In Automatic Operation LED is unlit (see page 21 for information about
uncommon behavior of this LED).
“How the InfraStruXure Power Generation System Operates” on page 6 summarizes
automatic operation of the InfraStruXure Power Generation System.
InfraStruXure Power Generation System 19
Automatic Operation
How to reset automatic operation on the ATS and on the generator
Resetting automatic operation on the ATS. If the Not in Automatic Operation LED is lit and
the Automatic Operation switch is in the Enable position, you will need to reset automatic
operation after the event that caused this condition is corrected (see page 21 for a detailed description
of events that might lead to this condition). You can also clear certain alarms by resetting automatic
operation at the ATS (see “Clearing latched alarms” on page 44 for more information).
To reset automatic operation on the ATS, set the Automatic Operation switch to Disable () and
then back to Enable ().
Resetting automatic operation on the generator. If the ATS display interface reports a
generator shutdown alarm and the Alarm LED is lit red, you must reset automatic operation on the
generator to clear the alarm (the Shutdown LED on the generator control panel will also be lit red).
Events that lead to this condition include engaging the data center EPO switch and engaging the
E-stop button on the generator. If any EPO was engaged, the switch must be disengaged before
automatic operation can be reset. If shutdown was not caused by an EPO, contact APC customer
support (see the back cover of this manual). To reset automatic operation on the generator:
Set the
Acknowledge/Reset button.
/Manual/Auto switch on the generator control panel to . Press the Fault
Return the
/Manual/Auto switch to Auto.
20 InfraStruXure Power Generation System
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