Siemens Sinumerik 840D Series Function Manual

10.03
4.5 Manipulated voltage output
4-129
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
5470 OFFSET_COMPENSATION Cross reference: -
Offset compensation Related to:
HLA
Protection level:
3/3
Unit:
-
Default:
0
Minimum:
-4000
Maximum:
4000
Data type:
WORD
Active:
Immediately
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.
Offset
4 Firmware Drive Functions
02.99

Siemens Sinumerik 840D Series Specifications

General

Axes	Up to 31 axes
Power Supply	24 V DC
Control Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
PLC	Integrated PLC (programmable logic controller)
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Max. Number of Channels	Up to 10 channels