Verify that both safety channels are receiving identical signals. Inspect the safety relay or PLC output providing the STO signal. 3. Communication Timeout
Check the power supply unit (PSU) and wiring. Ensure the load on the 24V rail is not exceeding the PSU capacity. 2. STO Discrepancy / Over-Voltage (Error 02)
The logic supply voltage at the [X9] connector has dropped below the required threshold (typically 24V DC ±15%). cmmo-st-c5-1-diop error codes
For further technical details, users can refer to the official CMMO-ST Documentation or view the datasheet at RS Online for electrical specifications.
The controller includes several built-in protective functions to prevent hardware damage: Verify that both safety channels are receiving identical
Provides immediate, high-level error codes directly on the unit.
To identify more complex issues, the CMMO-ST provides several diagnostic methods: Communication Timeout Check the power supply unit (PSU)
Detects when the motor cannot keep up with the commanded path, often due to mechanical blockage.