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Operation selection function (Pr. 251)
PARAMETERS
3
(1) Pr. 250 = "9999"
When the start signal turns off, the motor is decelerated to a stop.
(2) Pr. 250 = other than "9999" (Output is shut off after preset time)
The output is shut off when the time set in Pr. 250 has elapsed after the start signal had turned off. The motor coasts
to a stop.
3.23 Operation selection function (Pr. 251)
3.23.1 Output phase failure protection selection (Pr. 251 )
CAUTION
1. The RUN signal turns off when the output stops.
2. When the start signal is turned on again during motor coasting, the motor starts at 0Hz.
3. The output speed becomes the speed limit value during torque control.
You can disable the output phase failure protection (E.LF) function that will stop the inverter output if any of
the three phases (U, V, W) on the inverter output side (load side) opens.
Parameter Name
Setting
Range
Minimum
Setting
Increments
Factory Setting Description Remarks
251
Output phase
failure protection
selection
0, 1 1 1
0: Without output
phase failure
protection
1: With output phase
failure protection
Extended mode
Time
(r/min)
ON OFFStart signal
Decelerated when start signal turns off.
Deceleration time (time set in Pr. 8, etc.)
DC brake
Output
speed
OFFStart signal
Output is shut off when the preset time has
elapsed after start signal had turned off.
Pr.250
Motor coasts to a stop.
Time
OFF
RUN signal
(r/min)
Output
speed
speed torque position