User's Manual

Pin Configuration
4
3.0 PIN CONFIGURATION
Table 1 Relay contact card pin configuration
Terminal
Block
Pin
DB25
Pin Function Operation
1 1 UPS Fault Closed if no UPS failure*
—2 Not Used
—3 Not Used
4 4 UPS Fault Closed if UPS fails*
5 5 Summary Alarm**
Closed if SUMMARY ALARM**
occurs*
6 6 Summary Alarm**
Closed if no alarm conditions
are present*
77
Signal Ground (for UPS
Any Mode Shutdown)
—8 Not Used
9 9 Common - Low Battery
10 10 Low Battery Closed if battery is OK
11 11 Low Battery
Closed if LOW BATTERY
point occurs.
— 12 Not Used
— 13 Not Used
14 14
UPS Any Mode
Shutdown (short to pin 7)
Turn UPS output OFF
when connected to pin 7*
15 15 On UPS Closed if ON UPS (inverter) power*
16 16 On Battery
Closed if ON BATTERY power
(Utility failure)
17 17
Common - UPS Fault,
Summary Alarm, On UPS,
On Battery, On Bypass
18 18 On Battery
Closed if not ON Battery power
(Utility OK)
— 19 Not Used
— 20 Not Used
— 21 Not Used
— 22 Not Used
— 23 Not Used
24 24 On Bypass Closed if ON BYPASS*
— 25 Not Used
* Feature not available on PSI products
** A Summary Alarm occurs when any of the following conditions exists:
• Utility power is out of the acceptable range (voltage and/or frequency).
• UPS is in BYPASS MODE (load not on Inverter power).
• UPS battery is LOW (<2 minutes of battery power remaining).
• UPS fault has occurred.