5.4 Details of Function Codes
5-134
<Operation Chart>
From inverter operation to commercial power operation (ISW50/ISW60: ON -> OFF)
(1) The inverter output is immediately blocked (Gate OFF)
(2) SW52-1: Inverter primary side circuit, and SW52-2: Inverter secondary circuit are turned off
immediately.
(3) After t1 (Set time of 0.2 sec. + function code H13) is elapsed, if the operation command is on, SW88:
turning on the commercial power circuit.
From commercial power operation to inverter operation (ISW50/ISW60: OFF -> ON)
(1) SW52-1: The inverter primary side circuit is turned on immediately.
(2) SW88: The commercial power circuit is turned off immediately.
(3) After an elapse of t2 (0.2 sec + time required for the main circuit to get ready) from when SW52-1 is
turned on, the inverter secondary circuit SW52-2 is turned on.
(4) After an elapse of t3 (0.2 sec + time specified by the function code H13) from when SW52-2 is turned
on, the inverter harmonizes from the commercial frequency, and recovers to the operation with the
frequency set by the inverter.
t1: 0.2 sec + H13 (Re-start wait time after momentary power failure)
t2: 0.2 sec + Time required for the main circuit to get ready
t3: 0.2 sec + H13 (Wait time before restart after momentary power failure)
Fig. 5.4-53
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