Lincoln Electric PRISM COMPACT Operator's Manual page 34

®
PRISM COMPACT
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
Filter replacement alarm does
not function.
The air ow is diminished.
Particulate is emitting from the
collection drum.
There is an abnormal amount
of weld fume in the work zone.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
FUNCTION PROBLEMS
1. Wrong DP reading reported by
sensor.
2. Incorrect duct air velocity.
1. Filter may be clogged.
1. Collection drum is full.
2. Possible bad seal and clamp on
the collection drum.
1. Check to make sure the machine
is powered on.
2. Check nozzle position.
3. Have an electrician check fan
speed on VFD.
4. Make sure your duct pressure
sensor PD2 is giving a proper
reading into the VFD. Fan speed is
controlled via this input feeding into
a PID control loop.
RECOMMENDED
COURSE OF ACTION
1. The Differential Pressure sensor PD1 is read by PLC1, after
con rming solid electrical and tubing connections you can tap into
the readings with a "T" tting with a hand held manometer to
con rm its readout matches the real DP. Calibrate or re-zero the
sensor if needed, change it if it doesn't operate properly.
2. Verify the duct air velocity is not too low. Measure and adjust as
necessary.
1. Replace lter if necessary.
2. Make sure your duct pressure sensor PD2 is giving a proper
reading into the VFD. Fan speed is controlled via this input feeding
into a PID control loop.
3. If all recommended possible areas of misadjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
1. Empty the collection drum.
2. Calibrate or re-zero the duct pressure sensor, if the output is still
bad change the duct pressure sensor.
3. If all recommended possible areas of misadjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
1. Calibrate or re-zero the duct pressure sensor, if the output is still
bad change the duct pressure sensor.
2. If all recommended possible areas of misadjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
E-3
TROUBLESHOOTING