Failure during the reference run (homing) process. 3. Communication & Safety
| Error Code | Name | Description | Immediate Action | | :--- | :--- | :--- | :--- | | | Under-voltage | DC link voltage < 18 V DC (nominal 24 V) | Check power supply capacity; measure at X1 terminals. | | 0x1200 | Over-voltage | DC link voltage > 32 V DC (regenerative braking issue) | Add external braking resistor; decelerate ramp longer. | | 0x1300 | Short Circuit | Phase-to-phase or phase-to-ground short in motor cable | Disconnect motor; test windings for resistance (<1 ohm indicates short). | | 0x1400 | Over-current | Instantaneous peak current > 5 A (software limit) | Reduce acceleration (object 0x6083h) or torque limit. | cmmo-st-c5-1-diop error codes
This is the most common code for the CMMO-ST-C5-1-DIOP. Failure during the reference run (homing) process
The motor controller communicates diagnostic information through a integrated 7-segment display and more detailed hexadecimal codes accessible via the Festo Configuration Tool (FCT) or the device's web server. Display-Based Diagnostics | | 0x1200 | Over-voltage | DC link