System file downloading
During system file downloading, the power on LED is lit and the error LED is slowly flashing.
If the system file download fails then the power on, error and system ready (flashing) LEDs will be lit. In this condition, the UCC2 waits for a
system restart. Switch the controller off and after approximately 10 seconds switch it on again.
After a successful download the system is ready for use; the power on and system ready LEDs will be lit.
Servo active LED
When the servo drives are not active, the servo LED is off.
When the servo drives are active, the servo LED is on.
Probe seated LED
When the probe is not deflected (in the case of analogue contact probes, not deflected beyond the trigger threshold zone): probe seated LED is
on.
When the probe is deflected: probe seated LED is off
Fatal faults
Some conditions can arise which mean that it is inadvisable or even dangerous to continue using the CMM servo system. These are known in
this document, and in UCCassist‐2, as ‘fatal’ faults, and are as follows.
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
NOTE:
That other faults (not classed as fatal) can prevent the CMMs operation. Refer to following sections.
UCC2 and UCC2-2 installation guide
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Issued 07 2021
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