Powerware 650825 kVA User Manual

Page of 192
UPS SYSTEM INSTALLATION
EATON Powerware
®
 9395 UPS (650–825 kVA) Installation and Operation Manual  
S
  164201725 Rev 2 www.powerware.com
4−34
X−Slot Communication Bays
TB1
TB2
See Figure 4-30
for terminal
assignments.
Figure 4-28. Interface Terminal Detail
TB2
NOTE  Alarm relay contacts have a maximum current rating of 5A and a
switched voltage rating of 30 Vac and 28 Vdc.
NOTE  Alarm relay normally−open and normally−closed return terminals
are separated on the terminal board but are electrically in common.
NOTE  Do not directly connect relay contacts to the mains related
circuits. Reinforced insulation to the mains is required.
NOTE  Alarm relay wiring should be a minimum of 22 AWG
.
Alarm Relay
3
4
5
6
Alarm Relay NC
Alarm Relay Common
Alarm Relay NO
Alarm Relay Common
Figure 4-29. Typical Alarm Relay Connection