12 Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 1 Overview
3. Leave the Control Power switches (E) for the Common Bus Inverters in
the ‘On’ position when the drive system is not in operation. This is not
needed if 24V auxiliary power (C) remains energized.
4. Leave the DC Precharge switches (F) for the Common Bus Inverters in
the ‘On’ position when the drive system is not in operation. This step is
not required for Common Bus Inverters without DC Precharge.
5. Leave 24V auxiliary power (C) energized when the drive is not in
operation.
Systems without 24V Auxiliary Power and with Separate 240V Control
Power
Bus supplies ordered without the –C1 Control Transformer option require
separate 240V control power.
Energize
Energize the product in the following sequence:
1. Leave the Control Power switches (E) for the Common Bus Inverters in
the ‘On’ position when the drive system is not in operation.
2. Leave the DC Precharge switches (F) for the Common Bus Inverters in
the ‘On’ position when the drive system is not in operation. This step is
not required for Common Bus Inverters without DC Precharge.
3. Energize 240V control power (D).
4. Energize three-phase power (A).
5. Turn the fused disconnect switch (B) to the ‘On’ position.
De-energize
De-energize the product in the following sequence:
1. Turn the fused disconnect switch (B) to the ‘Off’ position.
2. De-energize three-phase power (A). This may not be needed.
(D)
240V Control Power
(A)
(B)
Three-phase Power
(F) (F)
(E)
Input Bay Power Bay Power Bay Power BayControl
Bay
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