Miller Electric 75 - Manual (Page 33)

OM-228 956 Page 29
7-2. Diagnostics
ERR SENS
• The voltage sense error indicates no
voltage sensing feedback signal. Check
connections at feeder and welding power
source. Press Jog/Purge button to clear
error.
ERR TACH
• The tach error occurs 2 seconds after the
loss of tachometer feedback. The motor
speed is regulated through the monitoring of
voltage and current. Press Jog/Purge
button to clear error.
ERR MOTR
• The motor error indicates that the motor
has been drawing too much current for too
long. To remedy this, reduce the wire feed
speed or the wire feeder torque load/duty
cycle. Press Jog/Purge button to clear error.
ERR WFS
• The wire feed speed error indicates actual
wire feed speed does not match wire feed
speed command. Press Jog/Purge button
to clear error.
ERR STRT
• The start error occurs if the user has the
trigger held for more than two minutes
without striking an arc, or if the user holds
the trigger past the postflow phase in a
timed weld. This error also occurs if the
trigger is held when the feeder is powered
up. The error may be cleared by releasing
the trigger, and pressing the Jog/Purge
button.
ERR STOP
• The stop error occurs as result of
obstructions in the wire feed system or a
faulty wire drive system. Check wire feed
and wire drive systems. Press Jog/Purge
button to clear error.
ERR FLOW
• The flow error indicates no gas flow to the
gun. The error may be reset by
reestablishing gas flow to the gun, and then
pressing the Jog/Purge button.
ERR COOL
• The cool error indicates no coolant flow in
water flow switch option. The error may be
reset by reestablishing coolant flow to the
gun, and then pressing the Jog/Purge
button.
ERR FTP
• The file transfer error occurs if data does
not transfer to the feeder correctly. Press
Jog/Purge button to clear error, and transfer
data to feeder again.
ERR GND
• The ground current error occurs if weld
current is detected in the earth ground
connection. May be caused by a conductor
making contact with unit chassis. Check
and repair feeder weld connections. Press
Jog/Purge button to clear error.
ERR STUK
• The stuck error occurs if the welding wire
sticks to the workpiece at the end of a weld.
May be caused by poor weld conditions.
The error may be cleared by cutting wire
from workpiece, and pressing the Jog/
Purge button.
ERR PSF
• The primary power error occurs if the
primary power circuit inside the feeder is not
functioning correctly. Check feeder
connections. Press Jog/Purge button to
clear error.
ERR
SENS
ERR
TACH
ERR
MOTR
ERR
WFS
The following error messages are shown on the
upper and lower displays to indicate specific errors.
Explanations are in the text below:
ERR
STRT
ERR
STOP
Indicates a voltage
sense error.
Indicates a
tachometer error.
Indicates a motor
error.
Indicates a wire
feed speed error.
Indicates an arc
start error.
Indicates an arc
stop error.
ERR
FLOW
ERR
COOL
ERR
FTP
ERR
GND
ERR
STUK
ERR
PSF
Indicates a gas
flow error.
Indicates a coolant
flow error.
Indicates a file
transfer point error.
Indicates a ground
current error.
Indicates a wire
stuck error.
Indicates a primary
power error.