4
-
241
17-14=1,
Under VF control mode, no-loading drives particular induction motor with oscillation. And such kinds of
motors mostly are high-speed type.
Note
: Because Vector mode measures no-load current of motor by internal current vector structure, so
the particular induction motor can avoid the oscillated problem in the VF control mode.
Group 18: Slip Compensation Parameters
18- 00
Slip Compensation Gain at Low Speed
Range
【
0.00~2.50
】
18- 01
Slip Compensation Gain at High Speed
Range
【
-1.00~1.00
】
18- 02
Slip Compensation Limit
Range
【
0~250
】
%
18- 03
Slip Compensation Filter Time
Range
【
0.0~10.0
】
sec
18- 04
Regenerative Slip Compensation Selection
Range
【
0
】
:
Disable
【
1
】
:
Enable
18- 05
FOC Delay Time
Range
【
1~1000
】
msec
18- 06
FOC
Gain
Range
【
0.00~2.00
】
Slip compensation automatically adjusts the output frequency based on the motor load to improve the
speed accuracy of the motor mainly in V/F mode.
The slip compensation function compensates for the motor slip to match the actual motor speed to the
reference frequency.
Slip compensation adjustment in V/F mode
18-00:
Slip compensation gain at low speed
The adjustment of slip compensation gain at low speed follows the below procedure:
1. Set the rated slip and the motor no-load current (02-00).
2. Set the slip compensation (18-00) to1.0 (factory default setting is 0.0 in V / F control mode)
3. For the operation with a load attached, measure the speed and adjust the slip gain (18-00)
accordingly (increase in steps of 0.1).
-
If the motor speed is lower than frequency reference, increase the value of 18-00.
-
If the motor speed is higher than frequency reference, decrease the value of 18-00.
When the output current is greater than the no-load current (02-00), the slip compensation is enabled and
the output frequency increases from f1 to f2. Refer to Fig.4.4.90., the slip compensation value is calculated
as follows:
[Output current (12-08)
– motor no-load current (02-00)]
Slip compensation value = Motor rated sync induction rotation difference
x
[Motor output rated current (02-01)
–motor no-load current (02-00)]
Содержание F510 Series
Страница 1: ......
Страница 42: ...3 31 200V 150 175HP 400V 300 425HP Terminal screw size T M12 M10 400V 530 800HP Terminal screw size T M10 M10 ...
Страница 46: ...3 35 200V 150 175HP 400V 300 425HP Terminal screw size T M12 M10 400V 530 800HP Terminal screw size T M10 M10 ...
Страница 282: ...4 210 Frequency 1 11 72 Frequency 2 11 73 Output Frequency 11 69 Gain of Preventing Oscillation 3 0 ...
Страница 434: ...11 10 Dimensions of LED LCD keypad IP20 Figure 11 5 2 Dimensions of LED keypad ...
Страница 444: ...Ver 02 2019 09 ...