Position offsets

NC program

Linking of a logical axis to the physical ones can be modified in the running program. After suspension of axis output, the axes can be moved by another channel.

After returning to the original channel, the assumed and the actual position setpoints may deviated from one another. This position offset is displayed for the physical axis and is deleted each time the program is restarted.

Offset = command position (of active link)–active position

Position offsets 1:
Figure 1-5: Position offsets caused by auxiliary channel

Example: Axis 1 of 1st channel and axis 2001 of 2nd channel are linked to same physical axis. In each channel an different MDI is started and channel are suspended one after another.

Channel 1: “X100 ”

Command position

Channel 2: “X-50 ”

Command position

Real position

Offset

0 -> 50

 

0 -> 50

0

 

50 -> 15

50 -> 15

0

50 -> 80

 

15 -> 45

35

 

15 -> 0

45 -> 30

-30