Livingston & Company WELDWISE 2400, User Manual

Page: 124 / 195

PROBLEM POSSIBLE CAUSE OR
SYMPTOM
POSSIBLE FIX
Use the Input Monitor to observe the displacement channel
readings. Mechanically disconnect one end of the sensor and
extend/retract until you are reading within the window of the
displacement channel. Try flexing different areas of the sensor
cable looking for any area that causes the readings on the Input
Monitor to "jump". Replace the cable if flexing any part of it
causes intermittent readings.
EVERY WELD IS
REJECTED:
The Weld
Summary screen indicates
that any or all Displacement
parameters (Initial
Thickness, Final Thickness,
Setdown, Expansion) are
out of tolerance
.
CONT'D
Sensor cable
CONT’D
Using the cable pinout documentation for your system, check
the continuity of all connections relating to this sensor. Repair
or replace cable as necessary.
Calibration has changed. Check calibration and recalibrate sensor if necessary (Refer to
Chapter 8, Calibrating the Sensors).
Note : If an Export Setup
was performed the last time this sensor was properly calibrated,
an
Import Setup may be performed to reload the saved
calibration settings. Refer to Chapter 6, WMS Reference Guide.
Tolerances are set improperly. Adjust the tolerances.
Welds are being made with missing parts
and the weld gun is not closing completely. Check welded parts for missing parts, nuts, etc. Check nut
feeder.
Weld gun or solenoid valve failure. Check the force at the electrodes. Verify that solenoid valves or
servo is working correctly.
EVERY WELD IS
REJECTED:
The Weld
Summary screen indicates
that Force Parameters are
out of tolerance.
Force sensor failure. Refer to Section 2, Trouble With Force Sensor, Readings or
Channel.
10-8
0455
-INS-4
00
R
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