VEMAG ROBOT HP7C, Operating Instructions Manual, Page: 80 / 94

8. Troubleshooting
8-2
ROBOT HP7C / HP10C / HP15C / HP17C
© VEMAG 2004
Cause
• Portioning computer or power
electronics defective.
• Fuse F1/F8 defective.
• Fuse F31/F32 defective.
• Display, power supply or
portioning computer component
defective.
• Plug connection X12 on portioning
computer has come loose.
• Wiring defective, valve Y4.
• Power component or portioning
computer defective.
• Fuse F10/F11/F12 defective.
• Linking gear overloaded.
• Leak in vacuum system.
• Water or product residues in line
to display.
• Air de-oiling element
contaminated.
• Vacuum display defective.
• Valve is not actuated or is
defective.
• Unsuitable or worn double screw.
• Vacuum display fluctuating or too
low.
• Air relief bores in double screw
housing blocked.
• Too much air blended in.
• Vacuum system blocked.
Remedy
• Have parts replaced by
electrician.
• Have fuse on power supply unit
replaced by electrician.
• Have fuse on strip terminal
replaced by electrician.
• Replace defective part.
• Have plug connection checked by
electrician.
• Check wiring, voltage is shown by
LED at the valve plug.
• Operate test key 3 on the power
electronics, check LED, replace
defective part.
• Have fuses replaced by
electrician.
• Fault is shown in display.
• Check vacuum system.
• Clean or replace line.
• Replace air de-oiling element.
• Replace vacuum display.
• Check valve, voltage is shown by
LED below the valve plug.
• Check double screws.
• Check vacuum system for leaks,
paying special attention to the
double screw drive seal. If the
vacuum display is fluctuating, the
vacuum pump is taking in air. In
this case, check the float in the
valve.
• Open air relief bore using the
setting screws.
• Use mixing speed during the final
bowl-cutting phase.
• Check complete vacuum system
for free flow.
Fault
Machine feeds continuously
in portioning mode.
Display does not light up.
Linking failed or
unsatisfactory.
Vacuum level not reached,
vacuum unstable.
Lifting/tipping device
(optional) not functioning.
Air trapped in product.