|
No.
(Hex.)
|
Name
|
Description
|
Default
(Range)
|
|
L7-35
(1B57)
Expert
|
Low Freq Regen Torque Limit Lvl
|
        
Sets the torque limit used during low-speed regeneration. Usually it is not necessary to change this setting.
|
50.0%
(0.0 - 200.0%)
|
Reduces the regenerative torque limit to the level set with L7-35 when using low frequencies such that the output frequency is less than L7-36 [Regen Torque Limit Derate Freq]. The drive does not decrease torque limits during ramp to stop operation. Decrease the setting of L7-35 when oC [Overcurrent] issues occur while a regenerative load is input and the speed reference is constant.
Note:
-
Reduce the setting value of L7-35 in increments of 10.0% and reduce the setting value of L7-36 in increments of 2.0 Hz when faults occur during regenerative loads at low speed.
-
Setting values that are too high can cause faults.
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The torque limit reduction function does not operate when L7-35 is set with a value larger than L7-03 [Forward Regenerative Trq Limit] or L7-04 [Reverse Regenerative Trq Limit].
-
The motor may rotate slightly faster than the reference when a regenerative load is input at low speeds while L7-35 is set to a low value.