Misoperation Prevention And Parameter Setting Restriction; Reset Selection/Disconnected Pu Detection/Pu Stop Selection (Pr. 75); Parameter Write Disable Selection (Pr. 77) - Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual

Misoperation prevention and parameter setting restriction

4.18 Misoperation prevention and parameter setting restriction

Purpose
Limits reset function
Trips when PU is disconnected
Stops from PU
Prevention of parameter rewrite
Prevention of reverse rotation of the motor
Displays necessary parameters
Parameter restriction using password
Control of parameter write by
communication

4.18.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75)

You can select the reset input acceptance, disconnected PU (FR-PU04/FR-PU07) connector detection function and PU
stop function.
Parameter
Number
Reset selection/
75 disconnected PU detection/
PU stop selection
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 188)
This parameter allows its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection. Also, if parameter (all) clear is executed, this setting will not return to the initial value.
Pr. 75
Reset Selection
Setting
0 Reset input normally enabled
Reset input is enabled only when the fault
1
occurs.
2 Reset input normally enabled
Reset input is enabled only when the fault
3
occurs.
14
Reset input normally enabled
(initial value)
Reset input is enabled only when the fault
15
occurs.
16 Reset input normally enabled
Reset input is enabled only when the fault
17
occurs.
(1) Reset selection
You can select the enable condition of reset function (RES signal, reset command through communication) input.
When Pr. 75 is set to any of "1, 3, 15, 17", a reset can be input only when the inverter is tripped.
NOTE
When the reset signal (RES) is input during operation, the motor coasts since the inverter being reset shuts off the output.
When reset is performed, cumulative values of electronic thermal O/L relay, regenerative brake duty are cleared.
The reset key of the PU is only valid when the inverter is tripped, independently of the Pr. 75 setting.
184
Reset selection/disconnected PU
detection/PU stop selection
Parameter write disable selection
Reverse rotation prevention selection
Display of applied parameters and
user group function
Password function
EEPROM write selection
Name Initial Value
Parameter that should be Set
Setting Range
14 0 to 3, 14 to 17
Disconnected PU Detection
If the PU is disconnected, operation
will be continued.
When the PU is disconnected, the
inverter trips.
If the PU is disconnected, operation
will be continued.
When the PU is disconnected, the
inverter trips.
Refer to Page
Pr. 75
Pr. 77
Pr. 78
Pr. 160,
Pr. 172 to Pr. 174
Pr. 296, Pr. 297
Pr. 342
Description
For the initial value, reset always enabled,
without disconnected PU detection, and
with PU stop function are set.
PU Stop Selection
Pressing decelerates the motor
to a stop only in the PU operation
mode.
Pressing decelerates the motor
to a stop in any of the PU, External
and Network operation modes.
184
187
188
188
191
218