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Misoperation prevention and parameter setting restriction
4.16 Misoperation prevention and parameter setting restriction
4.16.1 Reset selection/disconnected PU detection/PU stop selection (Pr.75)
(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 drive unit is tripped.
Purpose Parameter to set Refer to page
To limit reset function
To trip when PU is disconnected
To stop from PU
Reset selection/
disconnected PU
detection/PU stop selection
Pr.75
178
To prevent parameter rewrite
Parameter write disable
selection
Pr.77
181
To prevent reverse rotation of the
motor
Reverse rotation
prevention selection
Pr.78
182
To display necessary parameters
Display of applied
parameters
Pr.160
182
To restrict parameter using
password
Password function Pr.296, Pr.297
183
To control parameter write by
communication
EEPROM write selection Pr.342
208
You can select the reset input acceptance, disconnected PU (FR-PU07) connector detection function and PU stop
function.
Parameter
number
Name Initial value Setting range Description
75
Reset selection/
disconnected 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.
The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)
The Pr.75 value can be set any time. 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 normally enabled
If the PU is disconnected, operation
will be continued.
Pressing decelerates the motor to
a stop only in the PU operation
mode.
1
Reset input is enabled only when the
fault occurs.
2 Reset input normally enabled
When the PU is disconnected, the drive
unit trips.3
Reset input is enabled only when the
fault occurs.
14
(initial
value)
Reset input normally enabled
If the PU is disconnected, operation
will be continued.
Pressing decelerates the motor to
a stop in any of the PU, External and
Network operation modes.
15
Reset input is enabled only when the
fault occurs.
16 Reset input normally enabled
When the PU is disconnected, the drive
unit trips.17
Reset input is enabled only when the
fault occurs.
NOTE
When the reset signal (RES) is input during operation, the motor coasts since the drive unit 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 drive unit is tripped, independently of the Pr.75 setting.