4-35
PWM dead zone at low frequencies below 10Hz causes torque reduction.
SLV Without Load Slip Compensation Gain
SLV With Load Slip Compensation Gain
1. When output current <= 02-00 (Motor current without load)
Slip compensation gain :
= [ SLV slip compensation gain(02-13)]* [Normal Duty slip compensation gain (02-16)]
2. When output current > 02-00 (Motor current with load)
Slip compensation gain:
= [ SLV slip compensation gain(02-13)] * Slip compensation gain 1
(According to the diagram below)]
SLV With Load Torque Compensation Gain
Please refer the contents as parameter 02-13/02-14
SLV Slip Compensation Select
Range
0: Slip Compensation Select 1
1: Slip Compensation Select 2
When output current lower or equal to 02-00(no load), the value of slip compensation will be
equal to (02-13)*(02-16)(slip compensation select 1).
When output current higher than 02-00(with load), the value of slip compensation will be equal
to (02-13)*(02-17)(slip compensation select 2).
Note: If inverter worked at lower speed with load, please use slip compensation select 2.
i
Slip compensation
gain ( % )
No-load current
02-00
2*INV rating
i
02-17
100
Slip
compensaiton
gain 1