Siemens SINUMERIK 840D sl Function Manual page 588

TE1: Clearance control - 840D sl only
15.6 Programming
Functionality
The maximum control range for clearance control can be modified on a block-specific basis
using CLC_LIM. The maximum programmable lower/upper limit is limited by the limit value
preset in the relevant machine data:
● MD62505 $MC_CLC_SENSOR_LOWER_LIMIT[1] (lower clearance control motion limit)
● MD62506 $MC_CLC_SENSOR_UPPER_LIMIT[1] (upper clearance control motion limit)
Figure 15-12 Value range limits for lower and upper limit
The control range limit is effective in relation to the current programmed setpoint position of
the axis. If the limits are changed so that the actual position is located outside the limit, the
clearance control automatically effects travel back to the limit range.
Reset
Within a part program, a modified control range limit can be reset by explicitly programming
CLC_LIM without a "CLC_LIM( )" argument. This reapplies the limits from the following
machine data:
● MD62505 $MC_CLC_SENSOR_LOWER_LIMIT[0] (lower clearance control motion limit)
● MD62506 $MC_CLC_SENSOR_UPPER_LIMIT[0] (upper clearance control motion limit)
RESET response
The default setting from the above-mentioned machine data becomes effective after power on
reset, NC RESET and end of program.
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Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions