Справочник Пользователя для Mitsubishi Electronics FR-A700
305
Misoperation prevention and parameter
setting restriction
4
4.22 Misoperation prevention and parameter setting restriction
4.22.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75)
(1) Reset selection
• You can select the operation timing 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 protective function is activated.
• When Pr. 75 is set to any of "1, 3, 15, 17", a reset can be input only when the protective function is activated.
Purpose
Parameter that must be Set
Refer to Page
Limit reset function
Trips when PU is disconnected
Stop from PU
Trips when PU is disconnected
Stop from PU
Reset selection/disconnected
PU detection/PU stop selection
PU detection/PU stop selection
Pr. 75
Prevention of parameter rewrite
Parameter write disable
selection
selection
Pr. 77
Prevention of reverse rotation of the
motor
motor
Reverse rotation prevention
selection
selection
Pr. 78
Display necessary parameters
Display of applied parameters
and user group function
and user group function
Pr. 160, Pr. 172 to Pr. 174
Parameter restriction using password
Password function
Pr. 296, Pr. 297
Control of parameter write by
communication
communication
EEPROM write selection
Pr. 342
You can select the reset input acceptance, disconnected PU (FR-DU07/FR-PU04/FR-PU07) connector detection
function and PU stop function.
function and PU stop function.
Parameter
Number
Name
Initial
Value
Value
Setting Range
Description
75
Reset selection/disconnected
PU detection/PU stop selection
PU detection/PU stop selection
14
0 to 3, 14 to 17
For the initial value, reset always enabled,
without disconnected PU detection, and
with PU stop function are set.
without disconnected PU detection, and
with PU stop function are set.
This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write
selection. Also, if parameter (all) clear is executed, this setting will not return to the initial value.
selection. Also, if parameter (all) clear is executed, this setting will not return to the initial value.
Pr. 75
Setting
Reset Selection
Disconnected PU Detection
PU Stop Selection
0
Reset input is always enabled
If the PU is disconnected, operation
will be continued.
will be continued.
Pressing
decelerates the motor to
a stop only in the PU operation mode.
1
Reset input enabled only when a
fault occurs
fault occurs
2
Reset input is always enabled
When the PU is disconnected, the
inverter trips.
inverter trips.
3
Reset input enabled only when a
fault occurs
fault occurs
14
(initial
value)
Reset input is always enabled
If the PU is disconnected, operation
will be continued.
will be continued.
Pressing
decelerates the motor to
a stop in any of the PU, External and
communication operation modes.
communication operation modes.
15
Reset input enabled only when a
fault occurs
fault occurs
16
Reset input is always enabled
When the PU is disconnected, the
inverter trips.
inverter trips.
17
Reset input enabled only when a
fault occurs
fault occurs
CAUTION
⋅ When the reset signal (RES) is input during operation, the motor coasts since the inverter being reset shuts off the output.
Also, the cumulative value of the electronic thermal relay function and regenerative brake duty is cleared.
⋅ The reset key of the PU is valid only when the protective function is activated, independently of the Pr. 75 setting.