Mitsubishi Electric FATEC FR-A800 Manual page 85

5
BREAKDOWN MAINTENANCE
(c) Power failure stop function (A730 (Pr.261) = "1, 11, 21")
•
Power supply
Remark
After the
Reset A730 (Pr.261) (Power failure stop selection) to the initial value "0".
5.2 Troubleshooting by the demonstration machine
80
Even if power is restored during deceleration triggered by a power failure, deceleration
stop is continued after which the inverter stays stopped. To restart operation, turn the
start signal OFF then ON again.
A730 (Pr.261) = "1"
During deceleration at
occurrence of power failure
STF
Y46
Power supply
STF
Y46
• If the automatic restart after instantaneous power failure is selected
(A702 (Pr.57) ≠ "9999"), the power failure time deceleration stop function
is disabled and an automatic restart after instantaneous power failure is
performed.
• After the power failure stop, the inverter will not start even if the power is
turned ON with the start signal (STF/STR) input. After switching ON the
power, turn OFF the start signal once and then ON again to make a start.
demonstration
During stop at
occurrence
of power failure
Turn OFF STF once to make acceleration again.
ON
Inverter does not start
Output frequency
during stop at occurrence
of power failure.
OFF
ON
Time
Time