User Manual

Hipulse - Single Phase ‘1+N’ UPS System

130 kVA - 110V

3.2Control cables

3.2.1Battery Control

The battery circuit breaker is controlled by the Battery Circuit Breaker Controller Board which is located within the Input Transformer Cubicle - or adjacent to the Battery Circuit Breaker when the batteries are rack-mounted. This board controls the circuit breaker’s undervolts release coil and also provides a path for the circuit breaker auxiliary contacts to signal the circuit breaker status back to the UPS control logic. All the connections between the controller board and the UPS module are made via the Auxiliary Terminal Block which is located in the base of the UPS cabinet.

B AT T E RY CI RCU IT

B R EAK ER CON TROL L E R

 

BOARD

 

 

1

2

3

4

X1

5

LINKS

1

2

3

4

5

6

7

8

9

10

11

X3 12

1

2

3

4

5

6

7

8

9

10

11

X4 12

Common

I batt.

Common

Batt. Sw.

Batt. trip

 

AUXILIARY

 

TERMINAL

 

BLOCK

 

LOCATED IN

Ext OFF Inv.

UPS

 

Ext Sw. Out

CABINET

 

 

Ext EPO

 

Ext BYP

 

Back feed

 

Int EPO

 

Fig 3-2 : Auxiliary Terminal Block detail

Connect the battery circuit breaker control and temperature compensation cables between the UPS auxiliary terminal block and battery circuit breaker controller board as shown in figure 3-3. These cable must be shielded, shield should be connected at protective earth of Input transformer cubicle or battery breaker, not of UPS.

CAUTION

If battery temperature compensation is not used the system must be de-activated by commissioning engineer.

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Liebert 130 kVA user manual Control cables, Auxiliary Terminal Block detail, Battery Control