ESAB ESD 7.5 - Troubleshooting

7  TROUBLESHOOTING
0463 751 001
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© ESAB AB 2023
7 TROUBLESHOOTING
Perform these checks and inspections before sending for an authorized service technician.
• Check that the control panel is connected to the correct mains voltage.
• Check that all three phases have live voltage (phase sequence is not significant).
• In a case where several roller beds are used in the same production area, make sure that correct
wireless remote-control pendants are used to the corresponding receiver unit that is mounted behind
the control panel. (Serial no., ID would be the same on all units belonging to the same ESD).
• Check that the mains supply is disconnected before starting any type of repair action.
Type of fault Possible cause Corrective action
Power light is not
illuminated
No incoming power Check the incoming mains power
Possible phase loss Check that all phases are present
Faulty or tripped circuit breaker Check reset circuit breaker
Failure to reset
when reset button
is pressed
Emergency stop pressed Check that all emergency stops are reset
Circuit breaker has tripped Check and reset tripped breaker(s)
Low voltage power failure Check output from low voltage power supply
(24V)
No rotation
(alarmON)
Wireless remote does not
communicate with the receiver
attached to the control panel
Ensure the correct transmitter is in use. The
labels on the receiver and the transmitter will
identify the RF channel and ID code in use
Inverter not receiving speed
reference
Make sure the wireless control has a full
charged battery
A pushbutton is stuck to the
bottom and does not release
Check that pushbutton on the wireless control
for any damage
No power from the inverter Check if the inverter has proper power supply.
Service Manual 0463762001 will give more
information about fault tracing.
The roller bed
rotates but wheels
are juddering
Motor fault Check that motor turns freely
Wheel bearing fault Check for damage or play in bearing
The roller bed
struggles to turn
component
Work piece exceeds capacity of
the roller bed
Check component weight
Wheel centres are too far apart Check that wheel centres are correct to
component diameter
Out of balance loading has been
exceeding
Check if out of balance loading is acceptable