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1.3.2 Recovery Procedure (Power-on Procedure)
(1) Before turn on the power supply, check the DC power supply is off.
(2) Check the recovery status of the sections that were disconnected for inspection and
maintenance and the replaced parts (connector insertion status, conductor
tightening status, etc.)
(3) Release of the safety measures (grounding, etc).
(4) Check that operations of all supplied inverters are prohibited on the hardware
(safety or emergency stop switch, etc).
(5) Check that front doors of all supplied inverter panels are closed and the screws
(two places) are tightened.
(6) Close the front door of the converter panel and tighten the screws (two places).
(7) Lock the door padlock.
(8) Turn on the control power supply MCCB(“CONTROL”).
The “OFF” LED on the automatic control panel turns off (lit).
(Note) Check that there is no error detected.
(9) Check that Fault or Alarm isn’t displayed on the operation panel on the automatic
control panel. If Fault or Alarm is displayed, check the fault message and then
recovery it.
(10) Check the safety of the system and release of the operation prohibited on the
hardware (safety or emergency stop switch, etc).
(11) When the "AC MAIN CIRCUIT BREAKER" switch on the automatic control panel is
turned on, the pre-charge automatically starts. (If pre-charge does not start,
examine the items for which the electrical condition (UV) is not satisfied and satisfy
the condition.) During pre-charge, the "ON" LED on the automatic control board
blinks.
(12) The pre-charge completes in about 10 seconds. Upon completion of pre-charge,
the main power supply is turned on automatically. When the main power supply is
turned on, the "ON" LED on the automatic control board turns on (lit).
(This procedure is applicable only when the circuit breaker automatic interface is
provided (See Section 5.3). The circuit breaker can be operated in one of the
following three ways; from the main automatic control panel, from the circuit
breaker panel, or remotely.)
Turn on the
control power
supply
Close the door
and tighten the
screws
Check
before
receiving
power
Pre-charge
Turn on the
main power
supply
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