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UCC BI troubleshooting
UCC BI visual diagnostics
A visual indication of the system status is provided by three LEDs on the front panel, providing assistance in diagnosing and rectifying system faults.
LED status key
Description | |
|---|---|
 | LED on, displaying green, amber or red |
 | Red flash |
 | Green flash |
 | LED off |
NOTE: The following light patterns apply when using UCCsuite version 5.3 and onwards.
| Servo status | Probe seated | Error | Description |
|---|---|---|---|
| | | No power Amplifier not engaged |
| |  | Hardware failure |
| | | Security failure (fast green flash) |
| | | Firmware error (intermittent fast green flash) |
| | | ** Controller not connected, waiting for download, download failed, device not recognised by UCC firmware or device not recognised by UCC downloadable software |
|  | | Amplifier not engaged: E-STOP active or amplifier fault |
 | | | Amplifier not engaged: E-STOP not pressed and amplifier has no fault |
 | | | Amplifier engaged |
| | | Probe seated |
| | | Probe not seated |
NOTE: ** A slow flash synchronised with the controller's slow flashing status LED indicates that the UCC BI is correctly connected to the controller and that the controller is waiting for a software download.
Fatal faults
Situations can occur that make it inadvisable or dangerous to continue using the CMM servo system. These are known in UCCsuite as fatal faults.
A list of the main UCC BI related fatal faults is shown below and will be indicated through the user's software (for example MODUS):
- A report of the emergency stop switch being active
- Air pressure is too low
- Crash switch operated, if fitted
- A scale reading failure
- An indicated overspeed (calculated from the rate of change of position)
- Outer limit switch active
- Digital SPA engage relay fault (when a safety relay in the SPA2-2 is detected to be stuck)
- Amp fault (when the SPA2-2 has a fault, which includes emergency stop active)
- PICS_STOP
NOTE: Other faults not classed as fatal can prevent the CMM's operation.
If the fatal fault cannot be resolved, please contact your local CMM support centre who can advise.