5.3 Description of Function Codes 5.3.2 E codes (Extension terminal functions)
<Operation timing scheme>
From inverter operation to commercial power supply operation (“ISW50”/"ISW60”: ON → OFF)
(1) Inverter output is cut immediately (gate OFF).
(2) “SW52-1”: Inverter primary circuit and “SW52-2”: Inverter secondary circuit are immediately turned OFF.
(3) After t1 (0.2 s + function code H13 setting time) has elapsed, “SW88”: Commercial power supply is turned
ON if the run command is ON.
Commercial power supply operation to inverter operation (“ISW50”/"ISW60”: OFF → ON)
(1) “SW52-1”: Inverter primary circuit is immediately turned ON.
(2) “SW88”: Commercial power supply circuit is immediately turned OFF.
(3) After t2 (0.2 s + main circuit ready completion time) has elapsed since “SW52-1” turns ON, “SW52-2”:
Inverter secondary circuit is turned ON.
(4) After fixed time t3 (0.2 s + function code H13 setting time) has elapsed since “SW52-2” turns ON, draw-in
from the commercial frequency operation is performed by the inverter, and operation is restored to inverter
operation at the set frequency.
Fig. 5.3-8
t1: 0.2 s + H13 (restart wait time following momentary power failure)
t2: 0.2 s + main circuit ready completion time
t3: 0.2 s + H13 (restart wait time following momentary power failure)
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