Powerware 415/240V, 400/230V, 380/220V, 208/120V manual Control Terminals

COMMUNICATION

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.

TB1

EMS−UGK

Connectors

(see Figure 20 on page 49)

TB2

1+ Polarity

– Polarity

2+ Polarity

– Polarity

3+ Polarity

– Polarity

4+ Polarity

– Polarity

CCommon

NO	Normally Open
NC	Normally Closed

Building Alarm 1

Building Alarm 2

Building Alarm 3

Building Alarm 4

Relay Output

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.

52 EATON Powerware® Energy Management System (EMS) Upgrade Kit User’s Guide S 164201724 Rev 1 www.powerware.com