12572

Common Causes

• Motion synchronous subprogram called in a standard block without synchronized motion command
• Incorrect block structure mixing motion synchronous and non-synchronous operations
• Subprogram designated for synchronized execution used outside of coordinated axis movement
• Programming error where motion synchronous function is isolated from its required motion command

Troubleshooting Steps

1. 1Review the part program at channel %1, block %2 to identify the subprogram call %3 and verify it is designated as motion synchronous
2. 2Confirm the block contains a synchronized motion command (G01, G02, G03, or equivalent synchronized function) paired with the subprogram call
3. 3Restructure the block to combine the motion synchronous subprogram with an active motion command in the same block rather than calling it independently
4. 4Consult the subprogram definition to confirm whether it is truly motion synchronous or if it should be called as a standard subprogram
5. 5Verify proper synchronization syntax and block structure per your 840D/828D programming documentation before rerunning the part program