Error Codes — Cmmo-st-c5-1-diop

: Specific documentation for errors related to the Safe Torque Off (STO) safety function. Motor controllers CMMO-ST - Festo Didactic Infoportal

Provides immediate, high-level error codes directly on the unit. cmmo-st-c5-1-diop error codes

| Error Code (Hex) | Description | Troubleshooting Steps | | :--- | :--- | :--- | | | General Hardware Fault | 1. Power cycle the controller. 2. Check for loose wiring on the power connector. 3. If persists, the internal power stage is likely damaged (replace unit). | | 0x8101 | Undervoltage | 1. Measure the 24V DC supply; ensure it is > 21.6V. 2. Check cable length and wire gauge (voltage drop). 3. Check for short circuits in the peripheral wiring. | | 0x8102 | Overvoltage | 1. Measure supply voltage; ensure it is < 30V. 2. If using a regenerative braking resistor, verify it is connected correctly to absorb back-EMF during deceleration. | : Specific documentation for errors related to the

If you can supply any of these details, I can give you a precise, actionable answer. Power cycle the controller

Since this is not a current catalog item from major brands:

Based on field failure analysis of 500+ CMMO-ST-C5-1-DIOP units: