This distinction drastically narrows troubleshooting:
If your machine has identical servo amplifiers and motors (e.g., swapping X and Y axis motors/drives), you can swap the encoder cables between the drives. fanuc 366 alarm
The is a Program (P/S) Alarm (Program/Operation alarm). It occurs during the execution or verification of a Custom Macro B program when the CNC control encounters a grammatically incorrect statement that does not conform to the Macro B language syntax rules. swapping X and Y axis motors/drives)
To prevent the 366 Pulse Miss alarm from returning, implement these preventive measures in your shop: fanuc 366 alarm