Siemens SINUMERIK 808D Parameter Manual page 307

If the cutout delay controller enable is set too short, controller enable will be
removed although the axis/spindle is still moving. This axis/spindle then coasts down
without power (which may be appropriate for grinding wheels, for example); otherwise
the time set in MD36620 $MA_SERVO_DISABLE_DELAY_TIME should be longer than the
duration of the braking ramp for error states (MD36610 $MA_AX_EMERGENCY_STOP_TIME).
Related to:
NC/PLC interface signal DB380x DBX2.1 (Controller enable)
MD36610 $MA_AX_EMERGENCY_STOP_TIME
For SINAMICS drives: Drive parameter P1082 (maximum speed / velocity)
36700 DRIFT_ENABLE
- Automatic drift compensation
-
- -
Description:
Only for special analog and hydraulic drives (not active with PROFIdrive drives):
Automatic drift compensation is activated with MD36700 $MA_DRIFT_ENABLE.
1:
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:
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
36710 DRIFT_LIMIT
% Drift limit value for automatic drift compensation
-
- 1
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
36720 DRIFT_VALUE
% Basic drift value
-
- 1
Description:
Only for special analog and hydraulic drives (not active with PROFIdrive drives):
The value entered in MD36720 $MA_DRIFT_VALUE is always added as an offset to the
manipulated variable. Whereas automatic drift compensation is active only for position-
controlled axes, this machine data is always active.
Special case: the following applies to PROFIdrive drives:
Parameter Manual
List Manual, 01/2017
FALSE
Automatic drift compensation active (only for position-controlled axes/spindles).
Automatic drift compensation not active.
0.0
0.0
EXP, A07, A09
BOOLEAN
0 -
EXP, A07, A09
DOUBLE
0 1.e9
EXP, A07, A09
DOUBLE
-1e15 1e15
Machine data
3.4 Axis-specific machine data
G2
NEW CONF
1/1 M
-
NEW CONF
1/1 M
-
NEW CONF
1/1 M
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