Vestil SWA-48, Инструкция по эксплуатации

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Table of Contents 9/9/2021 SWA-48-PMO MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp.; All rights reserved Page 14 of 17
Troubleshooting
Problem Cause Action
• The turntable does not
rotate.
Or
• The tu rntable will not
rotate without assistance,
rotates slower when
loaded, or will not achieve
maximum speed.
No power supply voltage.
• Speed control at its slowest setting
• No control signal from the foot
switch.
• Motor controller fault, or defective
motor controller.
• Broken or slipping belt.
Check for 120V at the outlet into which the
machine is connected. Find cause of power
supply loss before resupplying power.
If the turntable cord is plugged into the pigtail at
the powered mast's enclosure, verify that the
powered mast cord is plugged into an outlet.
• Increase the turntable speed at the knob on the
front of the motor controller.
• Check t he foot switch and its cable for continuity.
• Chec k the display on the controller for a fault
code. Contact the factory.
• If the fan on the drive motor is spinning, lift the
mast end of the machine to inspect the belt.
The powered mast motor or
control enclosure hums,
chatters, or buzzes, and the
film carriage does not
move, or it moves only
slowly.
• Excess voltage drop to the motor
due to: power wire size too small,
wire run to long, or incoming
voltage too low.
• Damage to the mast or carriage.
• Low control voltage or bad
connection in control circuit.
• Check power supply for adequacy.
• Check incoming voltage while the motor is
running. Correct by installing a circuit with larger
wire, eliminating extension cords, or installing a
buck/boost transformer.
• Visually inspect the carriage and mast for signs
of damage or excessive wear.
• Verify 24 VAC at transformer secondary. Inspect
all wires and connections in the mast control
enclosure for looseness, etc.
Powered mast must
carriage will raise but it will
not lower.
• See as last item above.
• Transformer fuse is blown.
• No power supply voltage.
• Mast limit switch is engaged or bad.
• Contr ol relay 1 CR, left side in the
enclosure, contact is burnt.
• Control relay 1 CR has become
loose.
• Control relay 2 CR has become
loose.
• Control relay 2 CR is defective.
• Bad connection in control circuit.
• Physical blockage of the structure.
• See paragraph above.
• Test with meter; replace if bad. Replace with the
same fuse type and ampere value.
• See first item at the top of the page.
• Inspect and test switch. Replace if bad.
• Inspect contact. Clean contact or replace relay if
burnt. Check for 120V at the motor relay.
• Verify that the relay is firmly in place.
• See last paragraph above.
• Inspect and test control relay 2 CR. Replace if
bad.
• Test all parts of circuit with meter.
• Inspect for foreign material or objects that might
block the carriage path.