For detailed troubleshooting of the PH20 system please refer to the CMM support knowledgebase (www.renishaw.com/cmmsupport) or contact your local Renishaw office.
PH20 system status indicator LEDs
The head incorporates two LEDs for status indication in various modes, located as illustrated below.
No power (probe LED also off)
Probe triggered or module removed
Power, no comms
'Soft engage' mode*
* The ‘Soft engage' is a fault condition where the PH20 head uses a weak motor drive and can be manually rotated to prevent damage.
Head comms signal booster box indicator LEDs
There are three LEDs on the head comms signal booster box that can be used for basic fault indication.
No system power
No comms from UCC
No comms from head and / or UCC or downloadable isn't running
Comms OK from UCC
Comms OK from head
Comms error from UCC - check cable to UCC
Comms error from head - check cable to head