Troubleshooting - RoboLabs Vortex Popcorn Robopop 60 Instruction Manual

7.10 Troubleshooting

Trouble
The machine does not turn on after
pressing START push button.
Possible reason
Machine is not plugged in.
Supply cord fault.
No power in the wall receptacle.
Emergency stop switch SA is
actuated.
Emergency stop switch SA fault.
Circuit breaker QF is turned off.
Circuit breaker QF fault.
Push button SB1 fault.
Contactor KM2 fault.
Power supply unit PSU fault.
HMI panel LCD fault.
Remedy
Plug in the machine to mains.
Check supply cord for continuity.
Replace fault cord.
Check the voltage in the receptacle.
Check the position of the switch.
Release if actuated.
Check the switch operation.
Replace fault switch or contact
block.
Turn the circuit breaker on.
Check the circuit breaker.
Replace fault circuit breaker.
Check the push button operation.
While it is pressed, contacts should
open or close (depending on contact
block type).
Replace fault push button.
Check the contactor operation. Its
core should move back and forth
easily, no short or open circuit in its
coil. While the core pushed inside,
contacts (1), (3), (5), (13) should be
closed to (2), (4), (6), (14),
respectively; and should be open as
the core is not pushed.
Replace fault contactor.
Check power supply unit. While
mains voltage 230 VAC applied to
(L) and (N) terminals of the unit, 24
VDC must be present at output
terminals (+V), (-V).
Replace fault power supply unit.
With 24 Vdc applied to terminals
(24V) and (0V) the screen should lit
up. If not, replace the panel.
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