Mitsubishi Electric 700 Series, Instruction Manual

Page: 199 / 416

188
Misoperation prevention and parameter
setting restriction
(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.
(5) Reset limit
• Setting can be made for the FR-F720-03160 (FR-F740-01800) or more.
• You can set
Pr. 75 to disable reset operation until the thermal cumulative amount reaches 0 when a thermal trip
(THM, THT) or an overcurrent trip (OC1 to OC3) occurs consecutively twice.
• When Pr. 75 = "100 to 103, 114 to 117", reset limit is valid.
(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)Push " " three times.
(When
Pr. 79 Operation mode selection
= "0 (initial value)
or 6") ...( release)
(When Pr. 79 Operation mode selection = "2, 3, or 7"),
pushing " " once will release .
3)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.
To restart after the inverter is stopped by PU with PLC function, reset using a power supply rest or RES signal. (sending stop
signal from GX Developer, can also perform the reset.)
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.
REMARKS
When the power-ON reset (no control power is supplied) is made, the thermal cumulative amount is cleared.
♦
Parameters referred to
♦
Pr. 250 Stop selection Refer to page 119
Speed
Time
Key
Key
Stop/restart example for external operation
Operation
panel
STF ON
(STR) OFF
EXT