Detailed Description 
  2.1 Motion monitoring functions 
Axis Monitoring, Protection Zones (A3) 
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0 
2-13 
Block change criterion: Clamping tolerance 
After activation of clamp monitoring: 
DB31, ... DBX2.3 = 1 (clamping in progress) 
the block change criterion for traversing blocks, in which the axis stops at the end of the 
block, no longer acts as the corresponding exact stop condition but the configured clamping 
tolerance: 
MD36050 $MA_CLAMP_POS_TOL 
(clamping tolerance for interface signal "clamping active") 
Behavior upon releasing of the clamp 
If the axis was moved by the clamping process, it is returned by the NC to the position 
setpoint after releasing of the clamp and setting of the servo enable state. Repositioning 
depends on whether "Follow-up mode" was activated for the axis: 
•  Without follow-up mode: Repositioning by position controller 
•  With follow-up mode: Repositioning by interpolator 
See also: 
DB31, ... DBX1.4 (follow-up mode) 
 
 
Note 
The following interface signals can be evaluated by the PLC user program as the criterion for 
activation of the "Follow-up mode": 
DB31, ... DBX60.6 / 60.7 (position reached with exact stop coarse / fine)