PHC10-3 Troubleshooting

This section on troubleshooting is a guide to problems associated with the installation and integration of the system only. Refer to the 'PH10 series user's guide' (Renishaw part number H-1000-5070) regarding problems associated with normal operation of the system.

The optional HCU1 can also be used to identify system faults. For full details of the use and fault finding capability of the unit see the 'HCU1 hand control unit user's guide' (Renishaw part number H-1000-5016).

Use the table below to identify problems you are experiencing with your system. If you experience problems which you are not able to identify or solve satisfactorily, please contact Renishaw for further advice.

Observation

Possible cause

Checks / remedies

POWER ON LED not lit

Power loss

Check mains cable connections and integrity

Check power block is supplying 24V

Check CMM EMERGENCY STOP condition - power may have been removed by the CMM   

No head movement in automatic mode

Power loss

See above

No head movement in automatic mode

Cable/connection fault

Check connections and integrity of cabling between head and PHC10-3

No head movement in automatic mode

Communications failure

Check RS232 baud rate 

No head movement in automatic mode

Incorrect command set selected

Check correct command set is selected

No head movement in manual mode

Power loss

See above

No head movement in manual mode

Cable/connection fault

Check connections and integrity of cabling between head and PHC10-3

No output signal received by the CMM computer

Cable/connection fault

Check connections and integrity of cabling from:

Head to PHC10-3

PHC10-3 to interface

Interface to CMM computer

No output signal received by the CMM computer

Multiwire bypass connector not fitted

When using standard touch-trigger probes, the probe head multiwire bypass connector must be fitted to permit the probe signal to reach the PHC10-3

No output signal received by the CMM computer

Multiwired probe in use

Check that the multiwire cable is correctly fitted to the head

Check that the trigger output to the CMM computer is connected to the multiwired probe interface

Poor measurement performance

Loose mounting of head

Ensure all mounting screws are tight and mounting to CMM is secure

Poor measurement performance

Probe damping enabled during measurement

Ensure probe damping is not enabled during measurement moves