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OM-201 540 Page 36
7-2. Diagnostics (Continued)
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.
WELD
WAIT
MOTR
COM
PLS
WAIT
Indicates a weld
cycle wait error.
Indicates a motor
communication error.
Indicates a UIM
communication error.
LOW
Indicates a low WFS
command error.
WFS
E
STOP
RMD
DONE
OVER
AVG
Indicates an
emergency stop error.
Indicates RMD
demo is done.
Indicates an over
average current error.
OVER
CRNT
Indicates an
overcurrent error.
REL
TRIG
ERR
UNKN
Indicates a contactor
on error.
Indicates an
unknown error.
TRIG
STUK
Indicates a trigger
closed error.