Use Of Indicator Lights For Troubleshooting - Miller Electric A.B.B. Robot Interface Gas Control Hub And Spindle Owner's Manual

5-6. Use Of Indicator Lights For Troubleshooting

On
Gas flows:
System normal (on.)
On
Contactor closed:
System normal (on).
On
Wire feeds:
System normal (on).
On
Arc started:
System normal (on).
On
No arc:
Check weld
parameters.
OM-884 Page 26
Gas Indicator Light
Gas does not flow:
Check gas valve operation.
Contactor Indicator Light
Contactor open:
Check interconnecting cords.
Check interface board PC3.
Wire Feed Indicator Light
Wire does not feed:
Check circuit breaker CB1.
Check relay CR1.
Check interface board PC3.
Current Indicator Light
No arc:
Replace reed relay.
Arc Failure Indicator Light
Arc started:
Check signal from robot.
Signal should be 24 vdc
between terminals 1 TL
and 1 TM.
Check display board PC4.
Gas flows:
Check gas valve operation
and gas line for leaks.
Check interface board PC3.
Contactor closed:
Check display board PC4.
Wire feeds:
Check input signal from
robot to motor board PC2.
Signal should be 0-10 vdc
between pins K and B
(common) at RC5.
Check motor board PC2.
Arc started:
Replace reed relay.
No arc:
Normal during idling.
Off
Gas does not flow:
System normal (off).
Off
Contactor open:
System normal (off).
Off
Wire does not feed:
System normal (off).
Off
No arc:
System normal (off).
Off
Arc started:
Normal while welding.