Siemens Sinumerik 840D Series Function Manual page 129

02.99
10.03
Offset
5470 OFFSET_COMPENSATION
Offset compensation
Unit: Default:
- 0
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
Minimum: Maximum:
-4000 4000
Since the valves are operated under analog control, an offset voltage of the D/A
converter or valve amplifier may cause a zero point error and thus a position
deviation (if no I-action component has been activated). By adding a compensa-
tion value, the offset error can be largely eliminated.
An automatic offset adjustment can be triggered with MD 5650
(see Subsection 3.9.2).
Note
When closed-loop force control is active (MD 5241), offset compensation is
absolutely necessary because the I component of the velocity controller is
deactivated with closed-loop force control.
4 Firmware Drive Functions
4.5 Manipulated voltage output
Cross reference: -
Related to:
Protection level:
HLA
3/3
Data type: Active:
WORD Immediately
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