UPS SYSTEM INSTALLATION
EATON Powerware® 9395 UPS (1000–1100 kVA) Installation and Operation Manual S 164201764 Rev 1 www.powerware.com
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Table 4-1. TB1, TB2, and TB3 Interface Connections
Terminal TB1 Name Description
1REPO NC
Input: Normally-closed dry contact used to activate UPS EPO from a remote switch.
2REPO Return
3REPO NO
Input: Normally-open dry contact used to activate UPS EPO from a remote switch.
4REPO Return
5Battery Aux Input: Normally-open contact used to indicate when UPS battery breaker is open or
closed.
6Battery Aux Common
748 Vdc Battery Shunt Trip +
Output: Contacts used to open battery breaker or disconnect.
848 Vdc Battery Shunt Trip –
9Output Contactor K3 NC Aux
Output: Normally-closed contact opens when output contactor closes.
10 Output Contactor K3 NC Aux
Common
Terminal TB2 Name Description
1Pull Chain
Output: Backup control for parallel operation.
2Pull Chain Common
3Alarm Relay NC
Output: General purpose normally−closed (NC) relay contact.
4Alarm Relay Common
5Alarm Relay NO
Output: General purpose normally−open (NO) relay contact.
6Alarm Relay Common
7Not Used
8Not Used
9Not Used
10 Not Used
Terminal TB3 Name Description
1Building Alarm 1
Input: Programmable UPS alarm, activated by a remote dry contact closure.
2Building Alarm 1 Return
3Building Alarm 2
Input: Programmable UPS alarm, activated by a remote dry contact closure.
4Building Alarm 2 Return
5Building Alarm 3
Default: Charger Off Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
function set for charger off.
6Building Alarm 3 Return
7Building Alarm 4
Default: On Generator Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
function set for on generator.
8Building Alarm 4 Return
9Building Alarm 5
Default: Maintenance Bypass Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
function set for maintenance bypass.
10 Building Alarm 5 Return
NOTE Return indicates connection to electronics circuit ground. Common" indicates connection to common side of isolated relay contact.