Siemens SINAMICS G120 List Manual page 233

r1298 CO: Vdc controller output (U/f) / Vdc_ctrl output
PM240 Access level: 3
Can be changed: -
Unit group: 3_1
Min
- [rpm]
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)
p1300[0...n] Open-loop/closed-loop control operating mode / Op/cl-lp ctrl_mode
Access level: 2
Can be changed: C(1), T
Unit group: -
Min
0
Description: Sets the open and closed-loop control mode of a drive.
Value: 0:
1:
2:
3:
4:
5:
6:
7:
19:
20:
21:
22:
23:
Dependency: For Standard Drive Control (p0096 = 1), settings p1300 = 0, 2 are possible, for Dynamic Drive Control (p0096 = 2)
only p1300 = 20, 21 can be set. Closed-loop speed or torque control (with encoder) cannot be selected if the encoder
type is not entered (p0400).
Operation with speed encoder is not possible for permanent-magnet synchronous motors.
Refer to: p0108, p0300, p0311, p0400, p1501
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.
Note: The closed-loop torque control can only be changed over in operation (p1300 = 20, 21) by selecting the closed-loop
speed control (p1501). At the changeover, the setting of p1300 does not change. In this case, the actual state is
displayed in r1407, bit 2 and bit 3.
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
U/f control with linear characteristic
U/f control with linear characteristic and FCC
U/f control with parabolic characteristic
U/f control with parameterizable characteristic
U/f control with linear characteristic and ECO
U/f control for drives requiring a precise freq. (e.g. textiles)
U/f control for drives requiring a precise frequency and FCC
U/f control for a parabolic characteristic and ECO
U/f control with independent voltage setpoint
Speed control (encoderless)
Speed control (with encoder)
Torque control (encoderless)
Torque control (with encoder)
Calculated: -
Scaling: p2000
Unit selection: p0505
Max
- [rpm]
Calculated: -
Scaling: -
Unit selection: -
Max
23
2 Parameters
2.2 List of parameters
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 6320
Factory setting
- [rpm]
Data type: Integer16
Dyn. index: DDS, p0180
Func. diagram: 6300, 6301, 8012
Factory setting
0
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