This MD has to be adapted to the accuracy of the speed controller as well as the
permissible accelerations and velocities.
36500 ENC_CHANGE_TOL A02, A05 G1, K6, K3, A3, D1, G2, Z1
mm, degrees Tolerance at actual position value change. DOUBLE NEW CONF
-
- - 0.1 0.0 - 2/2 M
Description: The permissible deviation between the actual values of the two measuring systems is
entered in this MD.
This difference must not be exceeded when switching over the measuring system used for
closed-loop control, in order to avoid compensating processes that are too strong.
Otherwise, the error message 25100 "Axis %1 Switchover of measuring system not
possible" is generated and the switchover does not take place.
This MD is relevant only if MD30200 $MA_NUM_ENCS = 2.
MD36500 also limits, in the form of a ramp, the rate of change of the backlash
compensation
values in
MD32450 $MA_BACKLASH. The limitation depends on the setting of
the position controller cycle. The lower the value in MD36500, the longer the duration
of the backlash compensation during the change of direction.
This MD is relevant only if MD30200 $MA_NUM_ENCS =1 or 2.
36520 DES_VELO_LIMIT A02, A05 -
% Threshold for setpoint velocity monitoring DOUBLE NEW CONF
-
- - 125.0 0.0 - 1/1 M
Description: Maximum permissible setpoint velocity as a percentage of the maximum axis velocity/
spindle speed.
With MD36520 $MA_DES_VELO_LIMIT, the position setpoint is monitored for abrupt
changes. If the permissible limit value is exceeded, alarm 1016 error code 550010 is
output.
With axes, this machine data refers to MD32000 $MA_MAX_AX_VELO.
With spindles, this MD refers to the lower of the speeds set in
MD35130 $MA_GEAR_STEP_MAX_VELO_LIMIT of the current gear stage and MD35100
$MA_SPIND_VELO_LIMIT.
36600 BRAKE_MODE_CHOICE EXP, A05 A3, Z1
- Deceleration response on hardware limit switch BYTE PowerOn
CTEQ
- - 0 0 1 2/2 M
Description: If a rising edge of the axis-specific hardware limit switch is detected while the axis
is traversing, the axis is braked immediately.
The type of braking is determined by this machine data:
Value = 0:
Controlled braking along the acceleration ramp defined by MD32300 $MA_MAX_AX_ACCEL
(axis acceleration).
Value = 1:
Rapid braking (selection of setpoint = 0) with reduction of following error.
Related to:
NC/PLC interface signal DB380x DBX1000.1 und .0 (Hardware limit switch plus or minus)
Machine data
3.4 Axis-specific machine data
Parameter Manual
List Manual, 01/2017 305
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