Liebert UPS System User Manual

Chapter 3 Electrical Assemble
34
Connector Name of contacts Board name input/output
Central contacts for overload OVR-S output
Normally open contacts for
overload
OVR-O output
Normally closed contacts for
generator mode
GEN-C output
Central contacts for generator
mode
GEN-S output
J12
J13
J14
Normally open contacts for
generator mode
GEN-O output
+24V power for environmental
signal
+24V power output
24V power for environmental
signal 1
ENV1
connect to dry
contacts
24V power for environmental
signal 2
ENV2
connect to dry
contacts
J17
24V power for environmental
signal 3
ENV3
connect to dry
contacts
+12V power for environmental
signal
+12V power output
12V environmental signal ENV
connect to dry
contacts
NC NC
J16
Ambient temperature input V-AD 0~5V signal input
Dry contacts H of generator GEN-H connect to dry contacts
Dry contacts L of generator GEN-L
connect to dry
contacts
Emergency shutdown H UCTRH
connect to dry
contacts
J18
Emergency shutdown L UCTRL
connect to dry
contacts
NC NC
Power Source of Sensor
＋
12V
power output
Battery Temperature BAT-T 0~5V signal input
J15
GND of Sensor GND power output
Terminals J9~J14 are the dry contacts for monitoring that can be used by users.
The relays have central contacts.

Liebert UPS System Specifications

General

Brand	Liebert
Model	UPS System
Category	Power Supply
Language	English