Electronics power supply, main contactor, and fans 1180 to 1680 amps

Function

Terminal

 

Connection values/Remarks

Possible

 

 

 

 

 

 

settings

Incoming AC supply

CTB

 

97

 

Internally connected to incoming

 

460 VAC, 3 Phase

CTB

 

99

 

460V supply

 

 

CTB

 

101

 

 

 

Current Requirement for Terminals if supplied from a separate source

 

1180, 1660 and 1680 amp base drives:

 

2.5 amps at 460 VAC 3 phase

 

Note: Phase sequence is important for the fan direction of rotation. The fan must rotate counter- clockwise when viewed from above. If necessary, swap the L1 and L2 phase wiring at incoming supply to change the fan direction of rotation.

Remote relay Enable terminals: 430 amp to 1680 amp base drive panels

Function

Terminal

Connection values/Remarks

Possible

 

 

 

 

settings

External enable (if used)

CTB

93

If a remote enable function is required

 

 

CTB

94

using a relay contact, then remove jumper

 

 

 

 

J5 and install a normally open low voltage

 

 

 

 

contact at terminals 93 – 94.

 

The 430 amp to 1680 amp Base Drive Panels use a DC contactor that is interlocked through the enable function at regulator terminals 34 and 38. This circuit is brought out to CBT terminals 93 and 94 to allow an easy point to add an external enable contact if required. A remote enable contact can be wired directly to terminals 34 and 38 of the regulator for Base Drive Panels rated 15 to 255 amps.

Siemens Energy & Automation

7-23

SIMOREG DC Master Base Drive Panel

Operating Instructions

Page 68
Image 68
Siemens 6RA70 specifications Internally connected to incoming 460 VAC, 3 Phase