Tab Cloak
Ultraviolet Proxy Transport
Advanced Options
Search Engine
About:Blank
Stealth Tab Default
Select Theme
Icon Presets
Enable Devtools
Cmmo-st-c5-1-diop Error Codes < SECURE >
Festo CMMO-ST-C5-1-DIOP is a compact stepper motor controller designed for point-to-point and interpolating motion. When a fault occurs, the device displays a hexadecimal error code on its 7-segment display
31-2: STO Discrepancy
: The two safety channels (at [X3]) are not switching at the same time. Verify that your safety relay is sending synchronized signals to both STO inputs. Troubleshooting Steps cmmo-st-c5-1-diop error codes
for Modbus connection issues) often appear in software tools, the controller itself provides visual feedback for several critical monitoring functions: RS Components Safety Errors (STO - Safe Torque Off): 0x7310 – Supply voltage too low (<21
Tier 3 Hardware Fix:
Use this guide to identify, diagnose, and resolve common error codes for this device family. cmmo-st-c5-1-diop error codes
- 0x7310 – Supply voltage too low (<21.6V)
- 0x7311 – Supply voltage too high (>26.4V)
- 0x5440 – Motor temperature error (if sensor connected)
- 0x6320 – Following error (load stuck / too high inertia)
- 0x8400 – IO-Link watchdog timeout
- 0xFFxx – Internal firmware error (needs reset/power cycle)
Festo CMMO-ST-C5-1-DIOP motor controller uses a standardized set of diagnostic messages and error codes, typically viewed via the Festo Configuration Tool (FCT)