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Operation example 1 at power failure
Control power
AC power supply
Operation example 2 at power failure (when DC power is restored)
Control power
AC power supply
Y85(MC)
STF(STR)
frequency
Operation example 3 at power failure (when continuous operation is performed)
Control power
AC power supply
Y85(MC)
STF(STR)
frequency
AC power supply
supply
ON
Y85(MC)
X70
X71
ON
STF(STR)
Output
frequency
(Hz)
AC
supply
ON
X70
OFF
X71
ON
Output
(Hz)
AC
supply
ON
ON
X70
OFF
X71
ON
Output
(Hz)
Motor brake and stop operation
DC power supply
ON
ON
ON
ON
Motor
coasting
Approx. 150ms
Back up operation
DC
AC
Power restoration
Turns off after
stop while running
ON
ON
ON
Motor
coasting
Time
Approx. 150ms
Back up operation
DC
AC
Power restoration
ON
Remains on while running
Time
Back up operation
Time
105
4

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