Siemens SINAMICS G120 Manual page 180

Parameters
List of Parameters
p1300[0...n] Open-loop/closed-loop control operating mode / Op/cl-lp ctrl_mode
PM240 Access level: 2
PM250, PM260
Can be changed: C(1), T
Units 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:
22:
Dependency: Only operation with U/f characteristic is possible if the rated motor speed is not entered (p0311).
Operation with a U/f characteristic is not supported for 1LE4 synchronous motors.
Refer to: p0300, p0311, p0500, 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: Only by selecting closed-loop speed control (p1300 = 20) is it possible to change over in operation to closed-loop
torque 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.
For the open-loop control modes p1300 = 5 and 6 (textile sector), slip compensation p1335, resonance damping
p1338, and the Imax frequency controller are switched off internally so that the output frequency can be set pre-
cisely. The Imax voltage controller remains active.
During operation (the pulses enabled) the open-loop/closed-loop control mode cannot be changed by changing
over drive data sets.
1-180
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)
Torque control (encoderless)
Calculated: -
Scaling: -
Unit selection: -
Max
22
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Data type: Integer16
Data set: DDS, p0180
Factory setting
0
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