Rockwell Automation SA3100 AC Power Modules - Manual (Page 34)

3-16 SA3100 Power Modules
3.8 Interlocking the Pre-charge Circuit and DC Bus
Disconnect for Common Bus Units
Pre-charge circuit power on C through H frame common bus units must be interlocked
with the bus disconnect. The connection is made to a 3-position terminal block
identified as TB1 on the pre-charge printed circuit board. Either AC or DC control
power can be used in the precharge circuit. The type of input can be selected by
setting of jumper W1 (115 VAC is the default jumper setting). See figure F.2 in
Appendix F.
Figure 3.10 – Terminal Block TB1 (H Frame Drives)