157
Misoperation prevention and parameter setting restriction
4.15 Misoperation prevention and parameter setting restriction
4.15.1 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.
(2) Disconnected PU detection
This function detects that the PU (FR-PU07) has been disconnected from the drive unit for longer than 1s and causes the
drive unit to provide a fault output (E.PUE) and come to trip.
When
Pr. 75
is set to any of "0, 1, 14, 15", operation is continued even if the PU is disconnected.
Purpose
Parameter that should be Set
Refer to Page
Limits reset function
Trips when PU is disconnected
Stops from PU
Reset selection/disconnected PU
detection/PU stop selection
Pr. 75
Prevention of parameter rewrite
Parameter write disable selection
Pr. 77
Prevention of reverse rotation of the motor
Reverse rotation prevention selection
Pr. 78
Displays necessary parameters
Display of applied parameters
Pr. 160
Parameter restriction with using
password
Password function
Pr. 296, Pr. 297
Control of parameter write by
communication
EEPROM write selection
Pr. 342
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.
The above parameter can be set when
Pr. 160 Extended function display selection
= "0".
The above 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.
Pr.
75
Setting
Reset Selection
Disconnected PU Detection
PU Stop Selection
0
Reset input normally enabled
When the PU is disconnected,
operation is 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
When the PU is disconnected,
operation is continued.
Pressing decelerates
the
motor to a stop in any of the PU,
external and communication
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 (RES) signal 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, and 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.
REMARKS
When the PU has been disconnected since before power-ON, it is not judged as a fault.
To make a restart, confirm that the PU is connected and then reset the drive unit.
The motor decelerates to a stop when the PU is disconnected during PU Jog operation with
Pr. 75
set to any of "0, 1, 14, 15"
(which selects operation to be continued if the PU is disconnected).
When RS-485 communication operation is performed through the PU connector, the reset selection/PU stop selection function
is valid but the disconnected PU detection function is invalid.
Summary of Contents for FR-D720-0.2K-G
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