Download Millerfi - Miller Electric

6-5.
USE OF INDICATOR LIGHTS FOR TROUBLE
SHOOTING
Gas Indicator
On
Off
Light
I
________
Gas flows:
System
normal
(on.)
Gas does not flow
Gas flows:
Gas does not flow
Check gas valve operation.
Check gas valve operation
and gas line for leaks.
System
normal
(off).
Check interface board PC3.
On
Contactor Indicator Light
Off
I
Contactor closed:
System
normal (on).
Contactor open:
Contactor open:
Check
cords.
System
interconnecting
normal
(off).
Check interface board PC4.
On
~
Wire Feed Indicator
~
Light
Off
I
I
I
Wire feeds:
System
normal
(on).
I
Wire does not feed:
Wire feeds:
Wire does not feed
Check circuit breaker CB1
Check
System
relay CR1.
normal
(off).
Check relay CR1.
Check input signal from
robot to motor board PC2.
should be 0-10 vdc
between 1TE and 1TC
Signal
(common).
Check interface board PC4.
Check motor board PC2.
On
WCR Indicator
Off
Light
I
I
Arc started:
System
No
normal
On
(on).
~
Interface Control On:
Normal.
Arc started:
arc:
Replace weld
relay.
Replace weld
relay.
current
Power Indicator
.
No
current
Light
Interface Control On:
Check connections between
Interface Control and Display
Module.
arc:
System
~
normal
(off).
Off
Interface Control Off:
System
normal
OM-141 438
(off).
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