UPS SYSTEM INSTALLATION

Table 4-1. TB1, TB2, and TB3 Interface Connections

Terminal TB1

Name

Description

 

 

 

1

REPO NC

 

 

 

Input: Normally-closed dry contact used to activate UPS EPO from a remote switch.

2

REPO Return

 

 

 

 

3

REPO NO

 

 

 

Input: Normally-open dry contact used to activate UPS EPO from a remote switch.

4

REPO Return

 

 

 

 

5

Battery Aux

Input: Normally-open contact used to indicate when UPS battery breaker is open or

 

 

6

Battery Aux Common

closed.

 

 

 

7

48 Vdc Battery Shunt Trip +

 

 

 

Output: Contacts used to open battery breaker or disconnect.

 

 

848 Vdc Battery Shunt Trip –

9Output Contactor K3 NC Aux

10

Output Contactor K3 NC Aux

Output: Normally-closed contact opens when output contactor closes.

Common

 

 

 

 

 

 

Terminal TB2

Name

Description

 

 

 

1

Pull Chain

 

 

 

Output: Backup control for parallel operation.

2

Pull Chain Common

 

 

 

 

3

Alarm Relay NC

 

 

 

Output: General purpose normally−closed (NC) relay contact.

4

Alarm Relay Common

 

 

 

 

5

Alarm Relay NO

 

 

 

Output: General purpose normally−open (NO) relay contact.

6

Alarm Relay Common

 

 

 

 

7

Not Used

 

 

 

 

8

Not Used

 

 

 

 

9

Not Used

 

 

 

 

10

Not Used

 

 

 

 

Terminal TB3

Name

Description

 

 

 

1

Building Alarm 1

 

 

 

Input: Programmable UPS alarm, activated by a remote dry contact closure.

2

Building Alarm 1 Return

 

 

 

 

3

Building Alarm 2

 

 

 

Input: Programmable UPS alarm, activated by a remote dry contact closure.

4

Building Alarm 2 Return

 

 

 

 

5

Building Alarm 3

 

Default: Charger Off

Input: Programmable UPS alarm, activated by a remote dry contact closure. Default

 

 

 

function set for charger off.

6

Building Alarm 3 Return

 

 

 

 

7

Building Alarm 4

 

Default: On Generator

Input: Programmable UPS alarm, activated by a remote dry contact closure. Default

 

 

 

function set for on generator.

8

Building Alarm 4 Return

 

 

 

 

9

Building 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

 

ontact.

4−28

EATON Powerware® 9395 UPS (1000–1100 kVA) Installation and Operation Manual S 164201764 Rev 1 www.powerware.com

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Powerware 10001100 kVA operation manual TB1, TB2, and TB3 Interface Connections