Parameter Details
12
12.3 C: TUNING
SIEPCYEUOQ2V01A Q2V Technical Manual 497
■ C3-23: M2 Slip Comp Limit
No.
(Hex.)
Name Description
Default
(Range)
C3-23
(0242)
M2 Slip Comp Limit
Sets the upper limit for the slip compensation function as a percentage of the motor 2 rated slip.
200%
(0 - 250%)
If you increase the value of C3-21 [M2 Slip Comp Gain] and the motor speed is slow, use this parameter. The
drive uses this parameter when the slip is at the upper limit of slip compensation. Make sure that you measure the
motor speed when you increase this parameter value. Set this parameter to make the frequency reference and the
slip compensation limit less than the permitted range of the machine.
The slip compensation limit is constant in the constant torque range (frequency reference ≤ E3-06 [M2 Base
Frequency]). In the constant power range where the frequency reference > E3-06, the slip compensation limit
increases with the C3-23 value and the output frequency as shown.
Figure 12.43 Motor 2 Slip Compensation Limit
■ C3-24: M2 Slip Comp Regen Condition
No.
(Hex.)
Name Description
Default
(Range)
C3-24
(0243)
M2 Slip Comp Regen
Condition
Sets the slip compensation during regenerative operation function for motor 2.
0
(0 - 2)
If you enable the slip compensation function during regeneration, the quantity of regeneration can increase
immediately. In this condition, it is necessary to use a dynamic braking option (braking resistor or braking resistor
unit).
0 : Disabled
The drive will not do Slip compensation during regeneration.
The load and operation status (regenerative operation) can cause the motor speed to be higher or lower than the
frequency reference.
1 : Enable>6 Hz
The slip compensation function is enabled during regeneration. Slip compensation is disabled at output
frequencies of 6 Hz or less.
2 : Enable>C3-15
The drive uses E2-02 [Mot Rated Slip] to automatically calculate the frequency range where it will disable slip
compensation function during regeneration.
Slip compensation is enabled at frequencies as low as 2 Hz.
■ C3-29: Slip Gain@Low Speed
No.
(Hex.)
Name Description
Default
(Range)
C3-29
(1B5D)
Expert
Slip Gain@Low Speed
Sets the gain for the slip compensation function in the low speed range. Usually it is not necessary
to change this setting.
0.0
(0.0 - 2.5)
Adjust this parameter as follows if necessary:
• If the motor speed is slower than the frequency reference, increase the setting value in 0.1 unit increments.
• If the motor speed is faster than the frequency reference, decrease the setting value in 0.1 unit increments.
To Next Page
Loading...
Need help?
General