Siemens sinumerik 840D sl Function Manual page 541

Detailed description
2.6 Programming
2.6.3 Limiting the control range (CLC_LIM)
Syntax
CLC_LIM(
Lower limit
Format and value range as machine data:
• MD62505 $MC_CLC_SENSOR_LOWER_LIMIT[n] (lower clearance control motion limit)
• MD62506 $MC_CLC_SENSOR_UPPER_LIMIT[n] (upper clearance control motion limit)
CLC_LIM(...) is a procedure call and must therefore be programmed in a dedicated part
program block.
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 2-13
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.
36
lower limit upper limit
, )
upper limit
,
Value range limits for lower and upper limit
Special functions: Clearance Control (TE1)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0