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20901059_EN_VACUU·SELECT_V1.3_280119
Troubleshooting
8.3 Device fuse
There is a device fuse, type: Nano fuse 4 A/t, on the circuit board
of the controller. If blown, the fuse can be replaced under ESD
conditions after the cause has been remedied.
NOTE
Damage possible if work is performed incorrectly.
>
>
Have maintenance work performed by a trained electrician
or at least by a person with electrotechnical expertise.
>
>
Ensure ESD safeguards when working with the circuit board.
Change device fuse
ESD tools required:
Grounding wristband, flat‑head screwdriver
Gr. 1, Torx screwdriver with torque of TX10, tweezers.
1
Preparation:
>
Have the tools ready (see
image).
>
Disconnect the controller from
the power supply.
1.
Lay the controller carefully
face down and unscrew the
4 screws in the housing.
Change device fuse
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