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Mitsubishi Electric FR-B-750 to 75K Instruction Manual Page 187

Fr-b-750 to 75k (200v class), fr-b-750 to 110k (400v class).
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Misoperation prevention and parameter
setting restriction
(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 an alarm output (E.PUE) and come to an alarm stop.
• When Pr. 75 is set to any of "0, 1, 14, 15", operation is continued if the PU is disconnected.
CAUTION
⋅ When the PU has been disconnected since before power-on, it is not judged as an alarm.
⋅ 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"
(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.
(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, "
output is not provided.
• When Pr. 75 is set to any of "0 to 3", deceleration to a stop by
REMARKS
The motor will also decelerate to a stop (PU stop) when
communication with Pr. 551 PU mode operation command source selection set to "1" (PU mode RS-485 terminals).
(4) Restarting method when stop was made by pressing
operation
Speed
Operation
panel
STF
ON
(STR) OFF
Stop/restart example for external operation
• The motor can be restarted by making a reset using a power supply reset or RES signal.
CAUTION
⋅ If Pr. 250 Stop selection is set to other than "9999" to select coasting to a stop, the motor will not be coasted to a stop but
decelerated to a stop by the PU stop function during external operation
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 104
178
Time
Key
Key
CAUTION
" is displayed but an alarm is not output. An alarm
is valid only in the PU operation mode.
is input during operation in the PU mode through RS-485
from the PU during external
(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
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
.••••••(
EXT
3)Turn on the STF or STR signal.
.••••••(
canceled)
.
canceled)

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