Siemens SINUMERIK 808D ADVANCED Parameter Manual page 292

Machine data
3.4 Axis-specific machine data
Description:
Maximum time delay for removal of "controller enable" after faults. The speed enable
(controller enable) of the drive is removed internally within the controller after the
set delay time, at the latest.
The delay time entered becomes active as a result of the following events:
●
Errors that lead to immediate stopping of the axes
●
Removal of the interface signal DB380x DBX2.1 (Controller enable) from the PLC
As soon as the actual speed reaches the standstill range (MD36060
$MA_STANDSTILL_VELO_TOL), the "controller enable" for the drive is removed. The time
set should be long enough to enable the axis / spindle to brake down to a standstill
from maximum traversing velocity or maximum speed. If the axis / spindle is
stationary, the "controller enable" for the drive is removed immediately (i.e. the
time defined in MD36620 $MA_SERVO_DISABLE_DELAY_TIME is terminated prematurely).
Application example(s):
Speed control of the drive should be retained long enough to enable the axis / spindle
to brake down to standstill from maximum traversing velocity or maximum speed.
Notice:
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.
292
FALSE
Automatic drift compensation active (only for position-controlled axes/spindles).
Automatic drift compensation not active.
0.0
EXP, A07, A09
BOOLEAN
0 -
EXP, A07, A09
DOUBLE
0 1.e9
Parameter Manual, 08/2015, 6FC5397-8EP40-0BA1
G2
NEW CONF
1/1
-
NEW CONF
1/1
Parameter Manual