Energize Systems without 24V Auxiliary Power and with Separate 240V Control Power

Bus supplies ordered with the -C1 control transformer option do not require separate 240V control power.
PowerFlex 755TM System with 240V Control Power
A PowerFlex 755TM bus supply with common bus inverters with callouts indicating power connections and switches.
Energize the product in the following sequence:
  1. Turn the control power switches (E) for the common bus inverters to the ‘Off’ position when the drive system is not in operation.
  2. Turn the DC precharge switches (D) for the common bus inverters to the ‘Off’ 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 (C).
  4. Wait 60 seconds.
  5. Energize three-phase power (A).
  6. Turn the fused disconnect switch (B) to the ‘On’ position.
  7. Turn the DC precharge switches (D) for the common bus inverters to the ‘On’ position.
  8. Wait 60 seconds.
  9. Turn the control power switches (E) for the common bus inverters to the ‘On’ position.
  10. Clear any faults.
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