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UCC PI 80 troubleshooting
UCC PI 80 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 |
 | Any state |
NOTE: The following light patterns apply when using UCCsuite version 5.3 and onwards.
| Servo status | Probe seated | Error | Description |
|---|---|---|---|
| | | No power (note that this pattern is also possible when working normally and the probe is not seated) |
| |  | 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 |
|  | | Digital amplifier: Not applicable Analogue amplifier: Amplifier not engaged |
| | | Digital amplifier: Amplifier not engaged: E-STOP active or power amp fault Analogue amplifier: Not applicable |
 | | | Digital amplifier: Amplifier not engaged: E-STOP not pressed and amplifier has no fault Analogue amplifier: Not applicable |
 | | | Amplifier engaged |
| | | Probe not deflected beyond trigger threshold |
| | | Probe deflected beyond trigger threshold |
NOTE: ** A slow flash synchronised with the controller's slow flashing status LED indicates that the UCC PI 80 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 UCC PI 80 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
- 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.