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UPS SYSTEM INSTALLATION
Table 4-1. TB1, TB2, and TB3 Interface Connections
Terminal TB1
1
2
3
4
5
6
7
48 Vdc Battery Shunt Trip +
8
48 Vdc Battery Shunt Trip –
9
Output Contactor K3 NC Aux
Output Contactor K3 NC Aux
10
Terminal TB2
1
2
3
4
5
6
7
8
9
10
Terminal TB3
1
2
Building Alarm 1 Return
3
4
Building Alarm 2 Return
5
6
Building Alarm 3 Return
7
8
Building Alarm 4 Return
9
Default: 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.
4−28
EATON Powerware
Name
Description
REPO NC
Input: Normally-closed dry contact used to activate UPS EPO from a remote switch.
REPO Return
REPO NO
Input: Normally-open dry contact used to activate UPS EPO from a remote switch.
REPO Return
Battery Aux
Input: Normally-open contact used to indicate when UPS battery breaker is open or
closed.
Battery Aux Common
Output: Contacts used to open battery breaker or disconnect.
Output: Normally-closed contact opens when output contactor closes.
Common
Name
Description
Pull Chain
Output: Backup control for parallel operation.
Pull Chain Common
Alarm Relay NC
Output: General purpose normally−closed (NC) relay contact.
Alarm Relay Common
Alarm Relay NO
Output: General purpose normally−open (NO) relay contact.
Alarm Relay Common
Not Used
Not Used
Not Used
Not Used
Name
Description
Building Alarm 1
Input: Programmable UPS alarm, activated by a remote dry contact closure.
Building Alarm 2
Input: Programmable UPS alarm, activated by a remote dry contact closure.
Building Alarm 3
Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
Default: Charger Off
function set for charger off.
Building Alarm 4
Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
Default: On Generator
function set for on generator.
Building Alarm 5
Input: Programmable UPS alarm, activated by a remote dry contact closure. Default
function set for maintenance bypass.
®
9395 UPS (1000–1100 kVA) Installation and Operation Manual
S
164201764 Rev 1 www.powerware.com
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