Siemens SINAMICS G120D List Manual page 317

Notice: For the setting p2502 = 0 (no encoder), closed-loop position control is not possible. This setting is only practical as
supportive measure to implement encoderless closed-loop speed control (e.g. if the motor encoder is defective).
Note: The assigned encoder (p2502 = 1, 2) must be allocated an encoder data set (p0187, p0188).
p2503[0...n] LR length unit LU per 10 mm / LU per 10 mm
CU250D-2_DP_F Access level: 1
CU250D-2_PN_F
Can be changed: C(25)
Units group: -
Min
1 [LU]
Description: Sets the neutral length units LU per 10 mm.
Therefore, for a linear scale, a reference is established between the physical arrangement and the neutral length
units LU used in the drive.
Example:
Linear scale, 10 mm should be broken down to units of µm (i.e. 1 LU = 1 µm).
--> p2503 = 10000
Note: The assignment to the grid spacing can be achieved using this for a rotary axis with linear encoder.
LU: Length Unit
p2504[0...n] LR motor/load motor revolutions / Mot/load motor rev
CU250D-2_DP_F Access level: 1
CU250D-2_PN_F
Can be changed: C(25)
Units group: -
Min
1
Description: Sets the motor revolutions for the gearbox factor between the motor shaft and load shaft.
Gearbox factor = motor revolutions (p2504) / load revolutions (p2505)
Dependency: Refer to: p2505
Note: The gearbox factor between the encoder shaft and the motor shaft is set using p0432 and p0433.
p2505[0...n] LR motor/load load revolutions / Mot/load load rev
CU250D-2_DP_F Access level: 1
CU250D-2_PN_F
Can be changed: C(25)
Units group: -
Min
-1048576
Description: Sets the load revolutions for the gearbox factor between the motor shaft and load shaft.
Gearbox factor = motor revolutions (p2504) / load revolutions (p2505)
Dependency: Refer to: p2504
Note: The gearbox factor between the encoder shaft and the motor shaft is set using p0432 and p0433.
p2506[0...n] LR length unit LU per load revolution / LU per load rev
CU250D-2_DP_F Access level: 1
CU250D-2_PN_F
Can be changed: C(25)
Units group: -
Min
1 [LU]
Description: Sets the neutral length units LU per load revolution.
Therefore, for a rotary encoder, a reference is established between the physical arrangement and the neutral length
units LU used in the drive.
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Calculated: -
Scaling: -
Unit selection: -
Max
2147483647 [LU]
Calculated: -
Scaling: -
Unit selection: -
Max
1048576
Calculated: -
Scaling: -
Unit selection: -
Max
1048576
Calculated: -
Scaling: -
Unit selection: -
Max
2147483647 [LU]
Parameters
List of parameters
Data type: Unsigned32
Dyn. index: DDS, p0180
Func. diagram: 4010
Factory setting
10000 [LU]
Data type: Unsigned32
Dyn. index: DDS, p0180
Func. diagram: 4010, 4704, 4711
Factory setting
1
Data type: Integer32
Dyn. index: DDS, p0180
Func. diagram: 4010, 4704, 4711
Factory setting
1
Data type: Unsigned32
Dyn. index: DDS, p0180
Func. diagram: 4010
Factory setting
10000 [LU]
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