System status indicators

The head incorporates two LEDs for status indication in various modes:

LED status	Servo LED	Probe LED
Off	No power (probe LED also off)	Probe trigger
Green	Servos on	Probe calibrated
Red	Servos off	Stylus removed (or probe error)
Red flash	Comms to head failed (probe LED also off)	Probe removed from head
Amber	'Soft engage' mode	Probe turned off
Amber flash	Auto-tune in progress	Probe not calibrated

CMM support