The SPA3 monitors internal operational functions. If any of these reach a defined level where the system believes it is dangerous to operate a fatal fault will be applied.
When a fatal fault is detected it is not possible to engage the servo system. There may be other faults that prevent the CMM from engaging.
|Reported fatal fault||Possible cause|
Emergency stop system activated
Air pressure low
Crash switch activated
Scale readhead failed
The position demand has exceeded an internal defined limit
Over temperature shutdown
The SPA3 unit is designed for continuous power of up to 800 W. The unit will allow a supply current consumption of up to 12 A, which at 80 V is 960 W for a short period of time (1 second).
If this is sustained for a prolonged period, or the unit is not used in an adequate environment (such as one with poor ventilation or high ambient temperature) the unit will disengage the motors to protect itself. An over temperature warning will be reported to UCCserver.
SPA3 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
Alternating green and red flash
|Servo status||Probe seated||Error||Description|
No power to SPA3
UCC2 connected, waiting for download, or not connected to a controller
E-STOP active, or power amp has a fault
UCC connected, waiting for download, or download failed
Amps not engaged and no amp fault