Check for ID conflicts: Confirm that the station numbers of all modules are unique and there should be no duplicate IDs in the scanning list of the main station.
Check baud rate: The rate set by the master station and module is consistent.
Check the Ethernet cable: Use standard shielded Ethernet cable (CAT5e STP) and ensure that the terminal module has enabled terminal resistors. If the cable exceeds the specified length, try slowing down to 10 Mbps.
Check topology: Confirm it is a daisy chain with no branches or loops.
7.2 Motor not rotating or abnormal positioning
Check if the command has been issued: Execute a single axis motion in MotionCreatorPro 2 and observe the changes in the command counter. If there is no change, check the return value of the function call.
Check servo enable (SVON): Confirm that the servo drive is in the Servo On state (which can be controlled through the drive panel or external input).
Check the limit switch: If PEL or MEL is triggered (and the limit logic configuration is correct), the movement is prohibited. Limit testing can be forcibly ignored through software (only during debugging).
Check the electronic gear ratio: Confirm that the PRA-EGEAR parameter is set correctly to avoid too few pulses causing unclear movement.
Check wiring: Although the direct insertion module reduces external wiring, it is still necessary to confirm that the CN1 interface of the servo drive is not damaged (such as bent pins).
7.3 Inaccurate zeroing position
Check ORG signal logic: Confirm that the normally open/normally closed setting matches the actual switch type.
Check zeroing mode: Some modes require the combination of EZ (encoder index) signal to confirm whether the servo driver outputs EZ signal and is correctly connected to the module.
Reduce crawling speed (PRA_CRV_SPEED): Improve stopping position accuracy.
Check the mechanical coupling: if there is slippage, the repeatability of returning to zero is poor.
7.4 Trigger output invalid (using CPP/CPN)
Confirm that the module supports the comparison output function (both MNET-J3/S23/MIA support it).
Check if the comparator enables setting and comparing position values within the motion range.
Measure the differential voltage between CPP and CPN using an oscilloscope to confirm whether the pulse width and polarity meet the requirements.
Note that CPP/CPN is a differential signal (similar to RS-422), and the receiving end needs to support differential input.
7.5 Limit or origin signal no response
Check if the 24V and GND of CN3 are correctly connected to the external power supply.
Measure the voltage of PEL/MEL/ORG pins to GND with a multimeter, and a level change should occur when the switch is triggered (logic configured by software).
Confirm that the logic polarity (NH/NL) in MotionCreatorPro 2 is consistent with the actual switch.
Maintenance and spare parts recommendations
Regular inspection of network cable connectors: RJ-45 locks are prone to loosening in vibration environments, and it is recommended to use industrial grade network cables with locking screws.
Cleaning module gold fingers: If disassembly is required, wipe the CN1 interface gold fingers with alcohol to prevent oxidation and poor contact.
Backup module: For critical production lines, it is recommended to reserve 1-2 modules of the same model, which can be replaced within 5 minutes in case of failure (ID reset is required).
Configuration file backup: Backup the parameter files (. ini) for each axis in MotionCreatorPro 2 to the cloud, and quickly restore them after replacing the module.
