Trouble Shooting - NetterVibration NED 605 Operating Instructions Manual

9 Trouble Shooting

Faults on vibrators must only be repaired by authorised, qualified personnel.
The qualified personnel must use only insulated tools suitable for the applica-
tion.
IMPORTANT
Fault
Vibrator does
Carbon brushes worn out
not start or
runs with
Mains voltage too low
decreased
speed
NED 50100 / 50200 with
reversed polarity
Insufficient contact on a
connecting terminal
Carbon brushes worn out
Vibrator
speed drops
Incorrectly dimensioned
under load
connecting cable
Overload
Mains voltage too low
Natural resonance range of
vibration system
Impacts
High current
consumption
Carbon brushes worn out,
have no contact with com-
mutator
Damaged bearing
Possible cause Trouble shooting
Check carbon brushes
Check mains voltage and
cable cross-section
Check connection
Check connection in ter-
minal box
Check carbon brushes
Check cable cross-
section
Check unbalance setting
Check mains voltage and
cable cross-section
Check current
consumption
Check current
consumption
Fastening loose
Check carbon brushes
Line break?
Check bearing
16
Remedy
Replace carbon brushes
Correct mains voltage,
replace cable
Observe correct polarity
Tighten terminal nuts
Replace carbon brushes
Replace cable
Reduce unbalance
Correct mains voltage, re-
place cable
Stiffen the device
Reduce power of the vibrator
Tighten the screws
Replace carbon brushes
Replace bearing