7-2. Diagnostics (Continued)
WELD
WAIT
Indicates a weld cycle wait error.
MOTR
COM
Indicates a motor communication error.
PLS
WAIT
Indicates a UIM communication error.
LOW
WFS
Indicates a low WFS command error.
E
STOP
Indicates an emergency stop error.
RMD
DONE
Indicates RMD demo is done.
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Indicates an over | Indicates a contactor | ||||
average current error. | on error. | ||||
TRIG
STUK
Indicates a trigger closed error.
ERR
UNKN
Indicates an unknown error.
OVER
CRNT
Indicates an overcurrent error.
WELD WAIT
•The weld wait error indicates unit was not ready for a weld sequence. Press Jog/ Purge button to clear error.
MOTR COM
•The motor communication error indi- cates motor board lost data communica- tions. Press Jog/Purge button to clear error. If condition persists, contact nearest factory authorized service agent.
PLS WAIT
•The uim communication error indicates user interface board lost data communications. Press Jog/Purge button to clear error. If condition persists, contact nearest factory authorized service agent.
LOW WFS
•The low wire feed speed error indicates actual wire feed speed is lower than wire feed speed command. Check for obstructions in the wire feed system or a faulty wire drive system. Press Jog/Purge button to clear error.
E STOP
•The emergency stop error occurs if the user presses an emergency stop button. Reset the emergency stop button and press Jog/Purge button to clear error. Only applies to units equipped with E stop option.
RMD DONE
•The RMD done message indicates the RMD demo is completed. Pressing Jog/Purge button will change the screen to CYCL PWR on the display. Turn unit power off and back on again.
OVER AVG
•The over average error indicates that current is outside the average range for the set program parameters. Check and correct program parameters. Press Jog/Purge button to clear error.
REL TRIG
•The release trigger error indicates the user held the gun trigger after an E stop was reset causing the contactor to remain on. Press Jog/Purge button to clear error.
TRIG STUK
•The trigger stuck error indicates the user held the gun trigger during power up. Release trigger and turn power off and back on.
ERR UNKN
•The unknown error indicates an error was sent from the PCM board to the UIM, but error condition is unknown. Make sure welding power source is isolated from the welding fixture. Press Jog/Purge button to clear error.
OVER CRNT
•The over current error indicates welding power source primary current of the inverter is too high. Turn welding power source off and disconnect unit for servicing. Attempting to reset the display to continue welding may further damage internal components. A complete prepower check of the unit is needed including resistance measurements of R1 and R8 resistors on welding power source Interconnect board. Resistors should measure 30K ohms. Visually inspect electrolytic capacitors C1 and C2 for any possible damage. In the event of an over voltage condition, R1 and R8 could open potentially causing an imbalance in the power circuit. This condition would create excessive current in the inverter primary transformer and result in the OVER CRNT error.
