Siemens SINAMICS G120 List Manual page 260

2 Parameters
2.2 List of parameters
p1496[0...n] Acceleration precontrol scaling / a_prectrl scal
Access level: 3
Can be changed: U, T
Unit group: -
Min
0.0 [%]
Description: Sets the scaling for the acceleration precontrol of the speed/velocity controller.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p0341, p0342
Warning: The acceleration precontrol r1518 is kept at the old value if the ramp-function generator tracking (r1199.5) is active or
the ramp-function generator output is set (r1199.3). This is used to avoid torque peaks. Depending on the application,
it may therefore be necessary to disable the ramp-function generator tracking (p1145 = 0) or the acceleration
precontrol (p1496 = 0).
The acceleration precontrol is set to zero, if the Vdc control is active (r0056.14/15).
Note: The parameter is set to 100% by the rotating measurement (refer to p1960).
The acceleration precontrol may not be used if the speed setpoint manifests significant ripple (e.g. analog setpoint)
and the rounding-off in the speed ramp-function generator is disabled.
We also recommend that the precontrol mode is not used if there is gearbox backlash.
p1498[0...n] Load moment of inertia / Load M_inertia
Access level: 3
Can be changed: U, T
Unit group: 25_1
Min
0.00000 [kgm²]
Description: Sets the load moment of inertia.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Note: (p0341 * p0342) + p1498 influence the speed/torque pre-control in encoderless operation.
p1499[0...n] Accelerating for torque control scaling / a for M_ctrl scal
Access level: 3
Can be changed: U, T
Unit group: -
Min
0.0 [%]
Description: Sets the scaling for the acceleration integrator at low speeds (only for encoderless torque control).
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1), "Dynamic Drive Control" (DDC, p0096
= 2)
Refer to: p0341, p0342
p1500[0...n] Torque setpoint selection / M_set sel
Access level: 2
Can be changed: C(1), T
Unit group: -
Min
0
Description: Sets the source for the torque setpoint.
For single-digit values, the following applies:
The value specifies the main setpoint.
For double-digit values, the following applies:
The left-hand digit specifies the supplementary setpoint, the right-hand digit the main setpoint.
260
Calculated: -
Scaling: -
Unit selection: -
Max
10000.0 [%]
Calculated: -
Scaling: -
Unit selection: p0100
Max
100000.00000 [kgm²]
Calculated: -
Scaling: -
Unit selection: -
Max
400.0 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
77
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 6020, 6031
Factory setting
0.0 [%]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 6031
Factory setting
0.00000 [kgm²]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 6030
Factory setting
100.0 [%]
Data type: Integer16
Dyn. index: CDS, p0170
Func. diagram: -
Factory setting
0
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890