Eaton 9170+ ASY-0652 User Manual - Dc Cabling Between Cabinets

INSTALLATION

Eaton 9170

+

 Battery Charger Module User's Guide  

S

  164201399 Rev E

 www.eaton.com/powerquality

6

Table 2. Required Input Wiring for ASY-0739 External Battery Cabinet

Number of Charger Modules

Input Circuit Breaker Rating

75°C Copper Wire Size

Conductor Screw Torque

1

15A

14/12 AWG

2.3 Nm (20 lb in)

2

30A

10 AWG

2.3 Nm (20 lb in)

3

45A

8 AWG

2.8 Nm (25 lb in)

DC Cabling Between Cabinets

Refer to “Battery Cabinet Installation” in the UPS user's guide for the

procedure to connect the cable assembly between the external battery

cabinet and the UPS cabinet, or to additional external battery cabinets.

NOTE  

See Figure 2 on page 3 for the proper location of cabinet-to-cabinet wiring, which

must be in the second cabinet section.

Setting DIP Switches

The DIP switches on the rear panel of the Battery Charger Module are

functional only when the module is installed in an external battery

cabinet. The DIP switches control two functions:  the output current

limit and a periodic float charging to equalize all battery capacities.

NOTE  

Set the DIP switches ONLY if the Battery Charger Module is placed in the ASY-0739

12-slot external battery cabinet. When the module is placed in the UPS cabinet, do not set

the DIP switches.

Output Current Limit

The Battery Charger Module is capable of producing up to 5A, 10A, 15A,

or 20A when installed in an external battery cabinet. Discharged

batteries must be recharged at an optimum rate, neither too quickly nor

too slowly. For optimum charging of batteries, you must set DIP

switches 1 and 2.

Follow the guidelines in Table 3 to determine the proper output current

setting and set DIP switches 1 and 2 accordingly (see Figure 4).