Access Power Solutions Installation and Operation Guide (APS6-300/500 and APS12-300 Series)
10
Copyright © 2007-2013 Eaton Corporation. All Rights Reserved.
IPN 997-00012-49G May 2013
Input/Output Board
The input/output (I/O) board provides the I/O interfaces and connections for the SC200 or
SC100 system controller.
The I/O board includes a range of sense inputs for dc power system control and monitoring. It
also allows real time data collection from building services and other external devices, and relay
outputs for alarm signals or control of external devices.
The I/O functions are:
Sensors:
Current - 3, Bus voltage - 1, Temperature - 2, Battery Mid-point - 4
(SC200 only)
Input/Output:
Digital inputs: 4 pre-defined system functions, 6 user-defined
Relay outputs: 6 (one also used as Monitor OK alarm)
LVD contactor outputs: 2
For input and output specifications see details on page
. For connector pin-outs see details on
page
Bus voltage sense input - XH9
Power/Comms OK LED (green)
Digital inputs D1-D6 (6 user defined) - XH15A,
XH15B
Digital (relay) outputs RY1-RY6 (6) - XH16-XH21
LVD contactor 2 status LED (green)
LVD contactor 2 connector - XH5
LVD contactor 1 status LED (green)
LVD contactor 1 connector - XH4
LVD power input connector - XH8
Power and RXP comms input - YH11
Current sense inputs (3) - XH6
Temperature sense inputs (2) - XH7
Battery Mid-point Monitoring sense inputs (SC200
only) - XH12
DC power system digital inputs (4 pre-defined:
Load Fuse Fail, Battery Fuse Fail, AC Distribution
Fan Fail, AC Distribution MOV Fail) - YH3
for details of I/O board LED signals.