# ID 20137

G74 not allowed during active synchronous operation.
Description | It is not possible to execute homing (G74) while an axis coupling group is enabled. Also axes not involved in the current couplings must not be referenced. Example: Wrong: N10 G00 X0 Y0 Z0 N30 #SET AX LINK[1, B=Y]

N40 #ENABLE AX LINK[1]

N50 G74 X1

N1000 M30

Correct: (temporarily disable coupling):

N10 G00 X0 Y0 Z0

N30 #SET AX LINK[1, B=Y]

N40 #ENABLE AX LINK[1]

:

N45 #DISABLE AX LINK[1]

N50 G74 X1

N55 #ENABLE AX LINK[1]

:

`N1000 M30`

Response | Class | 2 | Abort NC program processing.
Solution | Class | 3 | Check and modify the NC program sequence. Deselect all active coupling groups before homing.
Parameter | %1: | Error value [-]
Invalid G function
Error type | 1, Error message from NC program.