Troubleshooting
To aid troubleshooting of the UCC2 system, five status LEDs are visible through the front panel of the UCC2.
LED
System status
Refer to section
Power on
System ready
Servo active
Probe seated
Error
off
off
off
off
off
Power off
UCC2 power not
switched ON
on
off
off
off
off
Default start up
condition
UCC2 power
switched ON
UCC2 power not switched ON
All LEDs OFF.
UCC2 power switched ON
Power on LED is lit.
If switch-on is successful the UCC2 proceeds to the initialisation/test sequence.
Initialisation / test
If the initialisation tests fail, then after about 15 seconds three LED configurations are possible, each indicating a different form of failure:
Power on
System ready
Servo active
Probe seated
Error
On
Off
Off
Flashing slowly
Flashing fast
On
Off
Off
Off
On
On
Off
Off
Off
Off
NOTE:
These failures are not fixable at the customer's site - if any of these forms of failure are indicated the unit must be returned
to your local Renishaw office.
NOTE:
The state of all LEDs being off except ‘power on' is the normal switch‐on state ﴾as per "UCC2 power switched ON"﴿; it only
indicates failure if it remains like this beyond about 15 seconds.
Try switching the controller off, waiting about 10 seconds, then turning it on again. If the problem persists, the unit needs attention.
If initialisation tests are successful, the power on LED will remain lit and the error LED will start flashing. A slow flash (approximately 0.5
second period) indicates the system is ready for a download. A fast flash (approximately 0.2 second period) indicates the UCC2 is in its IP
configured state (see
"Configuration of IP addresses"
UCC2 and UCC2-2 installation guide
www.renishaw.com
Issued 07 2021
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