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.

 

 

 

OM-196 188 Page 30

Page 36
Image 36
Miller Electric Welder operating instructions Diagnostic LED’s On Weld Interface Board PC12, Status Diagnosis