RoboLabs Vortex Popcorn Robopop 60 Instruction Manual page 40

Trouble
Sifter doesn't stop upon SIFTER
push button is pressed.
Oil is not pumped.
Salt auger doesn't rotate.
Possible reason
Push button SB2 fault.
Open circuit.
Step motor M3 fault.
Stepper driver DD2 wrong settings.
Stepper driver DD2 fault.
Open circuit.
Air lock in the oil path.
Solidified oil in the oil path.
Clogged oil nozzle.
Step motor M6 fault.
Stepper driver DD5 wrong settings.
Remedy
Check the push button operation.
While it is pressed, contacts should
open or close (depending on contact
block type).
Replace fault push button.
Check continuity between:
• Push button SB2;
Power supply unit PSU;
•
PLC DC1.
•
Restore connection, face up pitted
contacts, tighten loosen contacts.
Check step motor. Its rotor should
spin freely. No open or short circuit,
nor ground fault in its windings.
Replace fault step motor.
Set the factory settings.
Check to see if there are pulse
voltage on (A+), (A-), (B+), (B-)
terminals of the driver during its
operation.
Also it can be checked by swapping
with other driver.
Replace fault driver.
Check continuity between:
Step motor M3;
•
• Stepper driver DD2;
Resistor R2;
•
PLC DC1.
•
Restore connection, face up pitted
contacts, tighten loosen contacts.
Check the oil pump silicone hose;
turn the pump upside down and
turn it on from the testing screen.
Make sure the oil is not in solid
state. If oil solidified, warm it up to
make it liquid.
Clean the oil nozzle.
Check step motor. Its rotor should
spin freely. No open or short circuit,
nor ground fault in its windings.
Replace fault step motor.
Set the factory settings.
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