Parameters
List of parameters
1-318
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Example:
Rotary encoder, ballscrew with 10 mm/revolution, 10 mm should be broken down to units of µm (i.e. 1 LU = 1 µm).
--> One load revolution corresponds to 10000 LU
--> p2506 = 10000
Note: The position controller can only process position setpoints in the interpolator clock cycle (IPO clock cycle) in integer
length units (LU, Length Unit). This is the reason that speed setpoints that are not a multiple integer of 1 LU per IPO
clock cycle can only be realized as an average. The result speed setpoint steps are especially noticeable for a high
loop gain or when the pre-control is active. Increasing p2506 counteracts this behavior.
Description: Activating the adjustment and display of the status of the adjustment for absolute encoders.
Value: 0: Error occurred while adjusting
1: Absolute encoder not adjusted
2: Absolute encoder not adjusted and encoder adjustment initiated
3: Absolute encoder adjusted
Dependency: Refer to: p2525, p2598, p2599
Caution: For rotating absolute encoders, when adjusting, a range is set up symmetrically around zero with half of the
encoder range, within which the position must be re-established after powering down/powering up. In this range, it
is only permissible that the encoder overflows.
After the adjustment has been completed, it must be guaranteed that the range is not exited. The reason for this is
that outside the range, there is no clear reference any longer between the encoder actual value and mechanical
system.
If the reference point (CI: p2598) lies in this range, then the position actual value is set when adjusting to the refer-
ence point. Otherwise, adjustment is canceled with F07443.
There is no overflow for linear absolute encoders. This means that after the adjustment, the position can be re-
established in the complete traversing range after powering down/powering up. When adjusting, the position actual
value is set to the reference point.
Note: The encoder adjustment is initiated with p2507 = 2. The status is displayed using the other values.
In order to permanently save the determined position offset (p2525) it must be saved in a non-volatile fashion
(p0971, p0977).
This adjustment can only be initiated for an absolute encoder.
Description: Sets the signal source for the function "activate reference mark search".
Index: [0] = Cl-loop pos ctrl
[1] = Encoder 1
[2] = Encoder 2
[3] = Reserved
Dependency: Refer to: p0490, p2502, p2509, r2684
Refer to: A07495
Notice: When activating the function "set position actual value" while the function "reference mark search" is activated, then
the function "reference mark search" is automatically de-activated.
p2507[0...n] LR absolute encoder adjustment status / Abs_enc_adj stat
CU250D-2_DP_F
CU250D-2_PN_F
Access level: 1 Calculated: - Data type: Integer16
Can be changed: U, T Scaling: - Dyn. index: EDS, p0140
Units group: - Unit selection: - Func. diagram: 4010
Min Max Factory setting
0 3 1
p2508[0...3] BI: LR activate reference mark search / Ref_mark act
CU250D-2_DP_F
CU250D-2_PN_F
Access level: 1 Calculated: - Data type: U32 / Binary
Can be changed: T Scaling: - Dyn. index: -
Units group: - Unit selection: - Func. diagram: 4010
Min Max Factory setting
- - [0] 2684.0
[1] 0
[2] 0
[3] 0
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