User Manual

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
200 List Manual, 04/2018, A5E33838102
Description: Sets the speed threshold for the Vdc-min controller (kinetic buffering).
If this value is exceeded a fault is output; the required response can be parameterized .
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Note: Exiting the Vdc_min control before reaching motor standstill prevents the regenerative braking current from
increasing significantly at low speeds, and after a pulse inhibit, means that the motor coasts down.
Description: Displays the actual output of the Vdc controller (DC link voltage controller)
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Description: Sets the open and closed-loop control mode of a drive.
Value: 0: U/f control with linear characteristic
1: U/f control with linear characteristic and FCC
2: U/f control with parabolic characteristic
4: U/f control with linear characteristic and ECO
7: U/f control for a parabolic characteristic and ECO
20: Speed control (encoderless)
Dependency: Only operation with U/f characteristic is possible if the rated motor speed is not entered (p0311). The output voltage
is used for efficiency optimization for all U/f control types, load-dependent (see p0500 = 3).
Refer to: p0300, p0311, p0500
Notice: Active slip compensation is required in the U/f control types with Eco mode (p1300 = 4, 7). The scaling of the slip
compensation (p1335) should be set so that the slip is completely compensated (generally 100%).
The Eco mode is only effective in steady-state operation and when the ramp-function generator is not bypassed. In
the case of analog setpoints, if required the tolerance for ramp-up and ramp-down should be actively increased for
the ramp-function generator using p1148 in order to reliably signal a steady-state condition.
Description: Sets the open and closed-loop control mode of a drive.
Value: 0: U/f control with linear characteristic
1: U/f control with linear characteristic and FCC
2: U/f control with parabolic characteristic
p1297[0...n] Vdc_min controller speed threshold (U/f) / Vdc_min n_thresh
PM240
PM330
Access level: 3 Calculated: p0340 = 1 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: 3_1 Unit selection: p0505 Func. diagram: -
Min Max Factory setting
0.00 [rpm] 210000.00 [rpm] 50.00 [rpm]
r1298 CO: Vdc controller output (U/f) / Vdc_ctrl output
PM230
PM240, PM330
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2000 Dyn. index: -
Unit group: 3_1 Unit selection: p0505 Func. diagram: 6320, 6854
Min Max Factory setting
- [rpm] - [rpm] - [rpm]
p1300[0...n] Open-loop/closed-loop control operating mode / Op/cl-lp ctrl_mode
PM230 Access level: 2 Calculated: - Data type: Integer16
Can be changed: C(1), T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6300, 6301, 8012
Min Max Factory setting
0 20 2
p1300[0...n] Open-loop/closed-loop control operating mode / Op/cl-lp ctrl_mode
PM240
PM250, PM260
Access level: 2 Calculated: - Data type: Integer16
Can be changed: C(1), T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6300, 6301, 6851,
8012
Min Max Factory setting
0 20 0