Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

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Parameters (G) Control parameters
FR-A800 5 - 721
●
Operation example at the time of power failure occurrence 1
●
Operation example at the time of power failure occurrence 2 (when the AC power supply is
restored)
I001563E
Fig. 5-359: Operation example 1 at power failure
I001564E
Fig. 5-360: Operation example 2 at power failure (when DC power is restored))
Control power supply
AC power supply
Y85 (MC)
X70
X71
STF (STR)
Output
frequency [Hz]
Time
AC power supply DC power supply
ON
ON
ON
ON
ON ON
Motor
coasting
Approx. 200 ms
Back up operation
Control power supply
AC power supply
Y85 (MC)
X70
X71
STF (STR)
Output
frequency [Hz]
Time
AC power supply DC
ON
ON
ON
ON ON
Motor
coasting
Approx. 200 ms
Back up operation
AC
Power restoration
Turns off after stop
while running