Selco Genesis 200 AC-DC Repair Manual page 17

Internal diagnostic messages are supplied by the LEDs on board 15.14.250.
The LEDs indicate operating status of the relevant part, as described in the table below:
Led Meaning
L1
-15 Vdc supplied by 15.14.250 for 15.14.250
control section
L2 +15 Vdc supplied by 15.14.250 for 15.14.250
control section
L3 +5 Vdc supplied by 15.14.250 for 15.14.250
control section
L4 +24 Vdc supplied by 15.14.250 to power front panel
L5 +48 Vdc supplied by 15.14.250 to power front panel
L6 -15 Vdc supplied by 15.14.250 for 15.14.250
UPFR section
L7 +15 Vdc supplied by 15.14.250 for 15.14.250
UPFR section
L8
Supply under voltage alarm
L9 Supply overvoltage alarm
L10 UPFR active
L11 Output power enabling (also see sect. 7.1 "output power"
LED and sect. 9.2.4 "pot signal")
L12 Thermal cutout alarm
L13 Gate MOS 11 present
(output power enabling)
L14 Gate MOS 12 present
(output power enabling)
L15 Gate MOS 15 present
(output power enabling)
L16 Gate MOS 16 present
(output power enabling)
Description of diagnostic indications
Status (in regular operating conditions)
ON
ON
ON
ON
ON
ON
ON
OFF = everything OK
ON= unit lockup
OFF = everything OK
ON = unit lockup
ON (brightness depends on output current delivered)
MMA: ON
TIG: ON if torch trigger pulled
OFF = everything OK
ON = unit lockup
MMA: ON
TIG: ON if torch trigger pulled
MMA: ON
TIG: ON if torch trigger pulled
MMA: ON
TIG: ON if torch trigger pulled
MMA: ON
TIG: ON if torch trigger pulled
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