Powerware 380/220V User Manual
COMMUNICATION
EATON Powerware
®
Energy Management System (EMS) Upgrade Kit User’s Guide
S
164201724 Rev 1
www.powerware.com
52
Control Terminals
The cables should be connected to the control terminals with a mating
connector. The relay contact terminals have functional electrical isolation
from the system. The building alarms share a common (–) through
100 ohms, and have functional electrical isolation from the system, but
not from each other.
connector. The relay contact terminals have functional electrical isolation
from the system. The building alarms share a common (–) through
100 ohms, and have functional electrical isolation from the system, but
not from each other.
+ Polarity
– Polarity
1
+ Polarity
– Polarity
2
Building Alarm 1
Building Alarm 2
Normally Closed
Normally Open
NC
NO
Common
C
Relay Output
+ Polarity
– Polarity
4
Building Alarm 4
+ Polarity
– Polarity
3
Building Alarm 3
TB1
TB2
Figure 22. External Control Terminal Connections
NOTE If using a semiconductor switch type, pay attention to the proper polarity. A relay or
other contact closure is preferred.
other contact closure is preferred.