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2 Parameters
2.2 List of parameters
SINAMICS G120C
148 List Manual (LH13), 04/2014, A5E33840768B AA
Description: Displays the actual compensated slip [%] referred to r0330 (rated motor slip).
Dependency: p1335 > 0 %: Slip compensation active.
Refer to: p1335
Description: Sets the gain for resonance damping for U/f control.
Dependency: Refer to: p1300, p1349
Note: The resonance damping function dampens active current oscillations that frequency occur under no-load conditions.
The resonance damping is active in a range from approximately 6 % of the rated motor frequency (p0310). The
shutoff frequency is determined by p1349.
For the open-loop control modes p1300 = 5 and 6 (textile sectors), the resonance damping is internally disabled in
order that the output frequency can be precisely set.
Description: Sets the proportional gain of the I_max frequency controller.
The I_max controller reduces the drive converter output current if the maximum current (r0067) is exceeded.
In the U/f operating modes (p1300) for the I_max control, one controller is used that acts on the output frequency and
one controller that acts on the output voltage. The frequency controller reduces the current by decreasing the
converter output frequency. The frequency is reduced down to a minimum value (equaling twice rated slip). If the
overcurrent condition cannot be successfully resolved using this measure, then the drive converter output voltage is
reduced using the I_max voltage controller. Once the overcurrent condition has been resolved, the drive is
accelerated along the ramp set in p1120 (ramp-up time).
Dependency: In the U/f modes (p1300) for textile applications and for external voltage setpoints, only the I_max voltage controller
is used.
Notice: When de-activating the I_max controller, the following must be carefully observed:
When the maximum current (r0067) is exceeded, the output current is no longer reduced. The drive is switched off
when the overcurrent limits are exceeded.
Note: p1341 = 0: I_max frequency controller de-activated and I_max voltage controller activated over the complete speed
range.
Description: Sets the integral time for the I_max frequency controller.
Dependency: Refer to: p1340
r1337 CO: Actual slip compensation / Slip comp act val
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: PERCENT Dyn. index: -
Units group: - Unit selection: - Func. diagram: 6310
Min Max Factory setting
- [%] - [%] - [%]
p1338[0...n] U/f mode resonance damping gain / Uf Res_damp gain
Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6300, 6310
Min Max Factory setting
0.00 100.00 0.00
p1340[0...n] I_max frequency controller proportional gain / I_max_ctrl Kp
Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6300
Min Max Factory setting
0.000 0.500 0.000
p1341[0...n] I_max frequency controller integral time / I_max_ctrl Tn
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6300
Min Max Factory setting
0.000 [s] 50.000 [s] 0.300 [s]
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