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5.7 H: Terminal Functions
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
283
5
Setting 1D: During regeneration
Terminal closes when the motor is driven in the regenerative mode.
Setting 1E: Restart enabled
An output set for “Restart enabled” closes once the drive begins attempting to restart after a fault has occurred.
The fault restart function allows the drive to automatically clear a fault. The terminal set to 1E will close after the fault is
cleared and the drive has begun attempting to restart. If the drive cannot successfully restart within the number of
attempts permitted by L5-01, then a fault will be triggered and the terminal set to 1E will open.
for details on automatic restart.
Setting 1F: Motor overload alarm (oL1)
An output programmed for this function will close when the motor overload level estimated by the oL1 fault detection
exceeds 90% of the oL1 detection level.
Refer to L1-01: Motor Overload Protection Selection on page 296
.
Setting 20: Drive overheat pre-alarm (oH)
Output closes whenever the drive heatsink temperature reaches the level specified by parameter L8-02.
Overheat Alarm Level on page 315
for details on drive overheat detection.
Setting 22: Mechanical weakening detection
Output closes when a mechanical weakening situation is detected.
Refer to Mechanical Weakening Detection on
for details.
Setting 2F: Maintenance period
Output closes when the cooling fan, DC bus capacitors, or DC bus pre-charge relay may require maintenance as
determined by the estimated performance life span of those components.
Refer to Periodic Maintenance on page 396
.
Setting 30: During torque limit
Output closes when the motor is operating at the torque limit specified by the L7-
parameters or an analog input.
This setting can only be used in OLV, CLV, AOLV/PM and CLV/PM control modes.
Refer to L7-01 to L7-04: Torque
Setting 31: During speed limit
Output closes when the speed limit has been reached. This function can be used in CLV and CLV/PM control modes.
Setting 32: During speed limit in Torque Control
The motor torque and load torque are not in balance, causing the motor to accelerate. An output terminal set to 32 closes
when the motor reaches the speed limit. Refer to
d5: Torque Control on page 238
and
Indicating Operation at the Speed
for details.
Setting 33: Zero Servo complete
Output closes when Zero Servo is enabled and the load is locked into position within the zero servo completion width
(b9-02). For how Zero Servo operates, refer to
.
Setting 37: During frequency output
Output closes when the drive is outputting a frequency.
Status
Description
Open
The conditions described below are not present.
Closed
1. The frequency reference has reached the upper limit set in d2-01.
2. The frequency reference has fallen to the lower limit set in d2-02 or d2-03.
3. Parameter b1-05 is set to 1, 2, or 3, and the frequency reference has fallen below the minimum output frequency (E1-09).
Status
Description
Open
The drive is not outputting a frequency (one of the following functions is being performed: stop, baseblock, DC Injection Braking (during initial excitation)).
Closed
Drive is outputting frequency.
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