PVA PVA2000 - Page 53

Operation and Maintenance Manual Rev M(ii) 4/03
- 43 -
Operation Other Symptoms Possible Cause Corrective Action
particular pressure settings.
Restricted air line.
• Correct any tight bends or
restrictions in the air lines.
Loose Fitting or Tubing
Connection.
• Tighten connection.
Frayed or damaged air line.
• Replace the damaged air
line(s).
Sensor is not positioned
correctly.
• Adjust the sensor location.
Part in place sensor
failure.
Cable is loose or not
connected.
• Check the cable
connections. Correct any
loose connections.
Conveyor does not
run.
Conveyor belt stuck to rails.
• Clean or replace belt.
W axis amp fuse(s) is blown.
• Check F4 fuse located on
GPIO interface board.
Amp cables are loose or
disconnected
• Check J10 and J11
connections on GPIO
interface board.
Motor Cable(s) are loose or
disconnected
• Verify CPC connections at
motor and terminal
connections on amp.
Exhaust fan does
not run.
No air flow. The motor overload relay,
OL-1, is in the tripped state.
• Reset the exhaust fan
overload relay.
•
The exhaust fan
overload relay trips
frequently.
Excessive motor
heating.
Insufficient air
flow.
Blocked exhaust filter leads
to excessive motor heating.
The overload relay trips.
• Clean the air filter on the
exhaust intake.
• Reset the exhaust fan
overload relay.
Insufficient air flow capacity
in the factory ducting.
• Upgrade the duct to allow
for more air flow.
• Reset the exhaust fan
overload relay.
The filter and
ducting are fine.
The motor
temperature is
normal.
The overload relay current
setting has been changed.
• Verify the current setting on
the overload relay. Please
refer to exhaust fan setup.
• Checked the tripped flag on
the overload relay. Push the
reset button to reset the