Troubleshooting
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9
Troubleshooting
Observe the safety instructions in chap. Safety, from page 6 on.
Troubleshooting of the vibrators may only be performed by regularly
trained, authorised and qualified personnel. Work on the electrical system
may only be carried out by a qualified electrician.
The qualified personnel has to work exclusively with tools suitable for the
application.
In the case of unauthorised intervention in the NEG/NEH there is no longer
any warranty claim.
Before any troubleshooting the NEG/NEH must be safely disconnected
from the electrical mains. The procedure is as follows:
1. Switch off NEG/NEH.
2. Secure against unintentional switching on.
3. Determine that NEG/NEH are voltage free.
4. Earth and short-circuit.
5. Cover and fence off neighbouring live parts.
Fault
Possible cause
Corrective action
Vibrator does not start
or runs at too low
speed
Phase interruption
Check fuse and connection cable,
replace, if necessary.
Mains voltage too low
Check mains voltage and cable cross-
section and, if necessary, adjust or
replace cable.
Vibrator speed drops
under load
Wiring wrong
Check circuit diagram.
Inadequate contact of a connec-
tion point
Check connections in the terminal
box, tighten terminal plate nuts.
Phase interruption
Check fuse and connection cable,
replace, if necessary.
Incorrectly dimensioned connec-
tion cable
Check cable cross section and re-
place cable, if necessary.
Overload
Check setting of unbalance, reduce
unbalances.
Mains voltage too low
Check mains voltage and cable cross-
section and, if necessary, adjust or
replace cable.
Expertise and
regulations
Trouble-
shooting