Miller Electric A.B.B. Robot Interface Gas Control Hub And Spindle manual

5-6. Use Of Indicator Lights For Troubleshooting

	On			Gas Indicator Light			Off
Gas flows:		Gas does not flow:			Gas flows:	Gas does not flow:
System normal (on.)		Check gas valve operation.			Check gas valve operation	System normal (off).
					and gas line for leaks.
					Check interface board PC3.
	On		Contactor Indicator Light				Off
Contactor closed:		Contactor open:			Contactor closed:	Contactor open:
System normal (on).		Check interconnecting cords.			Check display board PC4.	System normal (off).
		Check interface board PC3.
	On		Wire Feed Indicator Light				Off

Wire feeds:	Wire does not feed:
System normal (on).	Check circuit breaker CB1.
	Check relay CR1.
	Check interface board PC3.

Wire feeds:	Wire does not feed:
Check input signal from	System normal (off).
robot to motor board PC2.
Signal should be 0-10 vdc
between pins K and B
(common) at RC5.
Check motor board PC2.

On Current Indicator Light Off

Arc started:	No arc:	Arc started:	No arc:
System normal (on).	Replace reed relay.	Replace reed relay.	System normal (off).

On Arc Failure Indicator Light Off

No arc:	Arc started:	No arc:	Arc started:
Check weld	Check signal from robot.	Normal during idling.	Normal while welding.
parameters.	Signal should be 24 vdc
	between terminals 1 TL
	and 1 TM.
	Check display board PC4.

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