4-184
Figure 4.3.99 Slip compensation output frequency
（2）Slip compensation limit（18-02）
. Slip compensation limit 18-02 setting, the constant torque and the constant power
as shown in Figure 4.3.100
. if 18-02 is set to 0%, the slip compensation is closed.
Figure 4.3.100 Slip compensation limit
If the slip compensation gain 18-00 at low speed is adjusted, and the actual motor
speed is still lower than the reference frequency, the the motor may get the slip
compensation limit.
Please be sure that the slip compensation limit 18-02 of this value and the reference
frequency will not exceed the allowed limited of the machine.
(3) Slip compensation filter（18-03）.
.Filter time of the slip compensation in V/F mode
(4) Regenerating slip compensation selection（18- 04）.
. The selections to enable or disable the slip compensation function in the
regenerating period.
. For the regenerating period (deceleration, in the SLV mode, set 18-04 to 1 if there
is speed accuracy requirement (enabled).
When the slip compensation function is used, the renewable energy increase
contemporarily(18-04 = 1). In this case, the braking module might be required
(Braking resistence).
SLV mode adjustment
(1) Slip compensation gain
. Under the condition of load coupled, it can be set to control the speed accuracy of all
range.
.If the speed is lower than 2 Hz and the motor speed decreases, increase the set value
of 18-00
.If the speed is lower than 2 Hz and the motor speed increases, reduce the set value of
18-00
In all range of speed control accuracy, 18-00 is set to a fixed value. As a result,
although the accuracy adjustment at low speed is performed, some slight errors still are
generated at high speed. If the speed error of high speed is not accepted, you can use
18-02 together with the compensation value or continue to adjust 18-00, but the
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