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Operation selection function 2 (Pr. 65 to Pr. 79)
(2) Restarting method when stop was made by inputting from PU
Alternatively, you can make a restart by making a power-on reset or resetting the inverter using the reset terminal of
the inverter.
3.11.6 Parameter write disable selection (Pr. 77 )
<Setting>
1)After the motor has decelerated to
a stop, turn off the STF or STR
signal.
2)Press .
..... (Recovery from )
3)Turn on the STF or STR signal.
REMARKS
• If the reset signal (RES) is provided during operation, the inverter shuts off its output while it is reset, the internal thermal
integrated value of the electronic thermal relay function and the number of retries are reset, and the motor coasts.
• To make a restart, confirm that the PU is connected and then reset the inverter.
• The Pr. 75 value can be set any time. This value does not return to the initial value even if parameter (all) clear is executed.
• When the motor is stopped from the PU, PS is displayed. An alarm output is not provided.
• Pr. 250 is made invalid.
CAUTION
Do not reset the inverter with the start signal input.
Doing so will start the inverter immediately after it has recovered from the error, causing hazard.
You can select between enable and disable for parameter write. This function is used to prevent parameter
values from being rewritten by misoperation.
Parameter Name
Factory
Setting
Setting Range Remarks
77 Parameter write disable selection 0 0, 1, 2 Simple mode
Pr. 77 Setting Function
0 Write is enabled only during a stop in the PU operation mode.*
1 Parameter write is disabled.
2
Write is enabled even during operation. Write is enabled independently of the operation
mode.
CAUTION
• * The shaded parameters in the parameter list (refer to page 66) can always be written, regardless of
the operation mode and operation status.
• Even when "2" is set in Pr. 77, the following parameters do not allow writing during operation.
Pr. 60, Pr. 71, Pr. 72, Pr. 79, Pr. 80 to Pr. 84, Pr. 90 to Pr. 96, Pr. 180 to Pr. 183, Pr. 187, Pr. 190 to Pr. 192,
Pr. 195, Pr. 450, Pr. 451, Pr. 453, Pr. 454, Pr. 800, Pr. 819, Pr. 851, Pr. 852, Pr. 859 and Pr. 868
Stop operation when changing the values of the above parameters.
• By setting "1" in Pr. 77, the following clear operations can be inhibited:
• Parameter clear
• All parameter clear
Even when "1" is set in Pr. 77, write is allowed for Pr. 22, Pr. 75, Pr. 77 and Pr. 79.
STOP
RESET
EXT
Speed
Time
Example of stop and restart during external operation
Control panel
STF ON
(STR) OFF
EXT
STOP
RESET
speed torque position