Machine data
2.4 Axis-specific machine data
Parameter Manual
290
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
Description:
Only for special analog and hydraulic drives (not active with PROFIdrive
drives):
Automatic drift compensation is activated with MD36700 $MA_DRIFT_ENABLE.
1: Automatic drift compensation active (only for position-controlled axes/
spindles).
With automatic drift compensation, while the axis is at a standstill, the
control continually calculates the additional drift value still required to
ensure that the following error reaches the value 0 (compensation criterion).
The total drift value is, therefore, formed from the drift basic value
(MD36720 $MA_DRIFT_VALUE) and the drift additional value.
0: Automatic drift compensation not active.
The drift value is formed only from the drift basic value (MD36720
$MA_DRIFT_VALUE).
Not relevant for:
Non-position-controlled spindles
Related to:
MD36710 $MA_DRIFT_LIMIT drift limit value for automatic drift compensation
MD36720 $MA_DRIFT_VALUE drift basic value
Description: Only for special analog and hydraulic drives (not active with PROFIdrive
drives):
The magnitude of the drift additional value calculated during automatic drift
compensation can be limited with MD36710 $MA_DRIFT_LIMIT.
If the drift additional value exceeds the limit value entered in MD36710
$MA_DRIFT_LIMIT, alarm 25070 "Drift value too large" is output and the drift
additional value is limited to this value.
Not relevant for:
MD36700 $MA_DRIFT_ENABLE = 0
36700 DRIFT_ENABLE EXP, A07, A09 G2
- Automatic drift compensation BOOLEAN NEW CONF
-
-- FALSE0 - 1/1
36710 DRIFT_LIMIT EXP, A07, A09 -
% Drift limit value for automatic drift compensation DOUBLE NEW CONF
-
- 1 0.0 0 1.e9 1/1
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