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173
Misoperation prevention and parameter
setting restriction
4
(2) Disconnected PU detection
• This function detects that the PU (FR-DU07/FR-PU04/FR-PU07) has been disconnected from the inverter for
longer than 1s and causes the inverter 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 if the PU is disconnected.
(3) PU stop selection
• In any of the PU operation, external operation and network operation modes, the motor can be stopped by pressing
of the PU.
• When the inverter is stopped by the PU stop function, "
" is displayed. A fault signal is not provided.
• When
Pr. 75
is set to any of "0 to 3", deceleration to a stop by
is valid only in the PU operation mode.
(4) How to restart the motor stopped by
input from the PU in External operation mode (PU
stop (PS) reset method)
• The motor can be restarted by making a reset using a power supply reset or RES signal.
CAUTION
⋅
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 inverter.
⋅
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 is 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.
REMARKS
The motor will also decelerate to a stop (PU stop) when
is input during operation in the PU mode through RS-485
communication with
Pr. 551 PU mode operation command source selection
set to "1" (PU mode RS-485 terminals).
(a) When operation panel (FR- DU07) is used
1)After the motor has decelerated to a stop, turn off the
STF or STR signal.
2)Press to
display .••••••( canceled)
3)Press
to return to
.
4)Turn on the STF or STR signal.
(b) Connection of the parameter unit
(FR-PU04/FR-PU07)
1)After the motor has decelerated to a stop, turn off the
STF or STR signal.
2)Press .••••••( canceled)
3)Turn on the STF or STR signal.
CAUTION
⋅
Even if
Pr. 250 Stop selection
is set to other than "9999" to select coasting to a stop, the motor will not coast to a stop but
decelerate to a stop by the PU stop function during external operation.
CAUTION
Do not reset the inverter with the start signal on. Doing so will cause the inverter to start immediately after a
reset, leading to hazardous conditions.
♦
Parameters referred to
♦
Pr. 250 Stop selection
Refer to page 112
Speed
Time
Key
Key
Stop/restart example for external operation
Operation
panel
STF ON
(STR) OFF
EXT