Miller Continuum 500 - Troubleshooting

OM-257 798 Page 40
LED Display
Message
Message
Type
LCD Display Message
LCD Solution
Message
LCD Error Log
Message
ERR PWR SRC ERROR Boost current balance error Cycle power on the power
source
Boost Current Balance Error
ERR PWR SRC ERROR Boost overcurrent error Cycle power on the power
source
Boost Overcurrent Error
ERR PWR SRC ERROR Boost precharge error Cycle power on the power
source
Boost Precharge Error
ERR PWR SRC ERROR Boost bus balance error Cycle power on the power
source
Boost Bus Balance Error
ERR PWR SRC ERROR Boost bottom bus cap voltage high Cycle power on the power
source
Boost Bottom Bus Cap V High
ERR PWR SRC ERROR Boost top bus cap voltage high Cycle power on the power
source
Boost Top Bus Cap V High
ERR PWR SRC ERROR Invalid boost device configuration Cycle power on the power
source
Invalid Boost Config
ERR PWR SRC ERROR Boost −15V power supply out of regu-
lation
Cycle power on the power
source
Boost −15V Power Error
ERR PWR SRC ERROR Boost −24V power supply out of regu-
lation
Cycle power on the power
source
Boost −24V Power Error
ERR PWR SRC ERROR Boost +15V power supply out of regu-
lation
Cycle power on the power
source
Boost +15V Power Error
WRN VSNS LOS WARNING Lost volt sense lead feedback Inspect volt sense lead for
break
Vsense Fallback Warning
ERR UNKNOWN ERROR An unknown error has occurred Update software Unknown Error
9-4. Troubleshooting
Trouble Remedy
No weld output; completely inoperative Place line disconnect in On position (see Section 5-9).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 5-9).
Check for proper input power connections (see Section 5-9).
No weld output; meter display on with no
error displayed.
Check to see if the contactor indicator light is lit when contactor line is asserted on.
Erratic or improper weld output with no
errors displayed.
Use proper size and type of weld cable (see Section 5-2).
Clean and tighten all weld connections.
Wire does not feed. Check supplementary protector CB1 and reset if necessary.
Check motor control cable connections.
Wire feeds erratically. Readjust hub tension.
Readjust drive roll pressure.
Clean or replace dirty or worn drive rolls.
Remove weld spatter around the nozzle opening.
Replace contact tip or liner. See gun Owner’s Manual.
Check motor control cable connections.
Wire feeds as soon as power is supplied. Check gun trigger. See gun Owner’s Manual.
Wire stubbing on low end using a
constant current power source.
Increase output setting of the power source.
Check voltage sense lead connection, clean and tighten if necessary.
Gas does not flow or does not stop flow-
ing; wire feeds.
Check gas valve and flow meter.
Wire burns back to gun contact tip when
using electrode negative (straight
polarity) process.
Check to be sure that volt sense lead is connected to the work.