Chapter 2 Battery installation 19
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
Note
The emergency stop action within the UPS shuts down the rectifier, inverter and static bypass. However, it does not internally
disconnect the mains input power supply. To disconnect ALL power to the UPS, open the upstream input circuit breaker(s) when
the EPO is activated.
The normally closed EPO contacts of pin 1 and pin 2 of J10 are shorted before the UPS is delivered.
All auxiliary cables must be double insulated twisted cables with cross sectional area of 0.5mm
2
~ 1.5mm
2
for a maximum
connection length between 25m and 50m.
1.7.8 Other Interfaces
J2 and J3: Parallel connection port, is used for interacting parallel control signals between two UPS racks.
J4: LBS interface, used to synchronize outputs of two UPS rack module systems
Serial port RS232-2: A debug and maintenance port used for providing serial communication data and authorizing the
commissioning and maintenance engineers.
Intellislot (TM) card interface: LIEBERT APM series UPS provides SNMP card communication interface that is used
for installing site communication optional Intellislot (TM) card.
To Next Page
Loading...
Need help?
General