Siemens SINAMICS G120 List Manual page 383

10
11
12
13
Note: While the technology controller is enabled, the following applies:
When switching off with OFF1, OFF3 and for pulse inhibit, bits 10 and 11 are simultaneously set to 1 as the controller
output is defined by the internal limiting.
p2502[0...n] LR encoder assignment / Encoder assignment
CU250S_V (Position Access level: 1
control)
Can be changed: C(25)
CU250S_V_CAN
Unit group: -
(Position control)
Min
CU250S_V_DP
0
(Position control)
CU250S_V_PN
(Position control)
Description: Setting to assign the encoder.
The actual value preprocessing and the closed-loop position control are carried out using the assigned encoder.
Value: 0:
1:
2:
Dependency: Refer to: p0187, p0188
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
CU250S_V (Position Access level: 1
control)
Can be changed: C(25)
CU250S_V_CAN
Unit group: -
(Position control)
Min
CU250S_V_DP
1 [LU]
(Position control)
CU250S_V_PN
(Position control)
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
CU250S_V (Position Access level: 1
control)
Can be changed: C(25)
CU250S_V_CAN
Unit group: -
(Position control)
Min
CU250S_V_DP
1
(Position control)
CU250S_V_PN
(Position control)
Description: Sets the motor revolutions for the gearbox factor between the motor shaft and load shaft.
Gearbox factor = motor revolutions (p2504) / load revolutions (p2505)
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
Technology controller output at the
minimum
Technology controller output at the
maximum
Fault response active
Technology controller limiting enable
No encoder
Encoder 1
Encoder 2
Yes
Yes
Yes
Yes
Calculated: -
Scaling: -
Unit selection: -
Max
2
Calculated: -
Scaling: -
Unit selection: -
Max
2147483647 [LU]
Calculated: -
Scaling: -
Unit selection: -
Max
1048576
2 Parameters
2.2 List of parameters
No
No
No
No
Data type: Integer16
Dyn. index: DDS, p0180
Func. diagram: 4010, 8570
Factory setting
1
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
-
-
-
-
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