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Motor brake and stop operation
⋅ The following shows the connection diagram when switching to DC power supply using inverter power failure
detection.
Three-phase AC
power supply
DC feeding permission signal
Frequency command
Frequency setting
*1
Assign the function using Pr. 178 to Pr. 189 (input terminal function selection).
*2
Assign the function using Pr. 190 to Pr. 196 (output terminal function selection).
⋅ Operation example 1 at power failure
118
MCCB
MC
DC power
MC1
(+)
(-)
Forward rotation start
Reverse rotation start
DC feeding cancel signal
Contact input common
3
2
potentiometer
1
1/2W1kΩ
Control power
AC power supply
supply
ON
AC power supply
Y85(MC)
X70
X71
ON
STF(STR)
Output
frequency
(Hz)
Inverter
Inrush
U
R/L1
current
limit circuit
S/L2
V
T/L3
W
R1/L11
S1/L21
P/+
N/-
STF
STR
*1
X70
DC feeding signal
*1
X71
*2
Y85
SD
10
SE
2
5
DC power supply
ON
ON
ON
Motor
coasting
Approx. 150ms
Back up operation
IM
Earth
(Ground)
MC1
24VDC
ON
Time
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