Switching Circuit Connection Diagram, Time Chart, Parameter Settings - Toshiba TOSVERT VF-AS1 Instruction Manual

Commercial power supply backup and commercial power supply/inverter switching
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1.2.1. Switching circuit connection diagram, Time chart,
Parameter settings
F L
FLA
FLC
ON
X
RY1
(Inverter)
MC2
RY2
(Commercial
power)
Y-△Switching timer
MC1
X
MC3
Inverter protective
action signal
FLX
OFF
X
MC2
MC3
MC1
MCD
MCY
MCY
MCD
X
F
Setting
frequency
0Hz
P24-OUT1(RY1)
for inverter run
output
P24-OUT2(RY2)
for commercial
power run output
Run signal
ON
F-CC
Stand-by signal
ON
ST-CC
Reset signal
RES-CC
Inverter run
5
Inverter
trip occurs
Speed detection time
Frequency after speed is
detected
Inverter-side switching
*2
wait time 
ON
Commercial power
switching wait time

ON
Commercial power run
E 6 5 8 1 3 6 4
ON
ON
Inverter run

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