User manual

110
Version 2.4 (10/2011) en
Original instructions
Drum Motor
Troubleshooting
Loud noises when the Drum Motor
runs in normal operation
Incorrect frequency converter
settings
Check if frequency converter settings
meet the Drum Motor's specifications
and revise.
Loose mounting brackets Check mounting brackets, shaft
tolerances and fixing bolts.
Belt overtensioned Check belt tension and reduce as
necessary.
Faulty / incorrect profile between
drum and belt
Make sure the belt and drum profiles
match and are engaged properly.
Replace if necessary.
One phase of the power lead is not
connected properly.
Check the cable connection and correct
it if necessary.
Drum Motor runs with high vibration Incorrect frequency converter
settings
Check if frequency converter settings
meet Drum Motor's specifications and
revise.
Loose mounting brackets Check mounting brackets, shaft
tolerances and fixing bolts
Drum Motor out of balance Check if specifications for Drum Motor
include static or dynamic balancing and
adjust.
Drum Motor runs intermittently Drum Motor / belt is intermittently or
partially blocked
Make sure the belt and Drum Motor are
free from obstructions and that all rollers
and drums rotate freely.
Incorrect or loose power lead
connection
Check connections.
Damaged transmission Check rotation by hand.
Replace Drum Motor or contact your
local Interroll distributor for further help
and advice.
Wrong or faulty power supply Check power supply.
If single phase, check capacitors.
Drum Motor / belt runs slower than
specified
Incorrect motor speed ordered /
supplied
Check Drum Motor specification and
tolerances.
Replace Drum Motor or contact your
local Interroll distributor for further help
and advice.
Drum Motor / belt is intermittently or
partially blocked
Make sure the belt and Drum Motor are
free from obstruction and that all rollers
and drums rotate freely.
Incorrect frequency converter
settings
Check if the frequency converter
settings meet the Drum Motor's
specifications and revise.
Belt slipping See symptom "Belt slipping on Drum
Motor".
Symptom Possible cause Help