7. diagnostic led’s on weld interface board pc12 – Miller Electric Welder User Manual
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OM-196 188 Page 30
5-7.
Diagnostic LED’s On Weld Interface Board PC12
LED
Status
Diagnosis
1
On
Indicates auxiliary output relay is not energized.
Off
Indicates auxiliary output relay is energized.
2
On
Indicates gas valve is not energized.
Off
Indicates gas valve is energized.
3
On
Indicates +24 volts dc is present for gas valve.
Off
Indicates +24 volts dc is not present for gas valve.
4
On
Indicates +15 volts dc is present on weld interface board PC12.
Off
Indicates +15 volts dc is not present on weld interface board PC12.
5
On
Indicates –15 volts dc is present on weld interface board PC12.
Off
Indicates –15 volts dc is not present on weld interface board PC12.
6
On
Indicates +15 volts dc power source supply is present on weld interface board PC12.
Off
Indicates +15 volts dc power source supply is not present on weld interface board PC12.
7
On
Indicates –15 volts dc power source supply is present on weld interface board PC12.
Off
Indicates –15 volts dc power source supply is not present on weld interface board PC12.
8
On
Indicates +5 volts dc is present on weld interface board PC12.
Off
Indicates +5 volts dc is not present on weld interface board PC12.
9
On
Input signal for no Jog retract.
Off
Input signal for Jog retract.
10
On
Input signal for no Jog advance.
Off
Input signal for Jog advance.
11
On
Indicates CV mode is selected.
Off
Indicates CC mode is selected.
12
On
Input signal for no welding power source contactor.
Off
Input signal for welding power source contactor.
13
On
Indicates an Emergency Stop condition is not present.
Off
Indicates an Emergency Stop condition is present.