Mitsubishi Electric FR-F820-00046, Instruction Manual

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Parameters (A) Application parameters
FR-F800 5 - 435
Power failure stop function (Pr. 261 = "1, 11, 21")
Even if power is restored during deceleration triggered by a power failure, deceleration stop is con-
tinued after which the inverter stays stopped. To restart operation, turn the start signal OFF then ON
again.
Fig. 5-215:
Power restoration
I001174E
NOTES If the automatic restart after instantaneous power failure is selected (Pr. 57 "Restart coasting time"
≠
"9999") while the power failure time deceleration-to-stop function is set enabled (Pr. 261 = "1,
11, or 21"), the power failure time deceleration-to-stop function is disabled.
When the power failure time deceleration-to-stop function is enabled (Pr. 261 = "1, 11, 21"), the
inverter will not start even if the power is turned ON or inverter reset is performed with the start
signal (STR/STF) ON. Turn OFF the start signal once and then ON again to make a start.
Power
supply
Out
p
ut
fr
equen
cy
Time
During deceleration at
occurrence of power failure
Turn OFF STF once to make acceleration again
During stop at
occurrence of
power failure
Pr. 261 = "1"
Power supply
Output
frequency
Time
Not started as inverter
is stopped due to power
failure
ON
ON
ON OFF
ON