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7.3 Troubleshooting
Fault
Motor protection
switch has
triggered
Fault in power
supply
Dust collection
container missing
or open
Fault in protection
contactor
Compressed air
supply not
available/insufficien
t
Compressed air
supply insufficient
Error differential
pressure sensor
Signal horn sounds The set minimum extraction
Product switches
off
15028844-00
Cause
Current consumption too
high due to voltage
variations or fault in fan
Polarity reversal in electrical
connection, phase
breakdown
Dust collection container not
properly connected
A fault has occurred in the
mains contactor or soft
starter.
The compressed air supply is
not sufficient or the
compressed air maintenance
unit is not correctly adjusted
or the filter inserts are
clogged
Compressed air could not be
provided at sufficient
quantity or fast enough
during filter cartridge
cleaning
The differential pressure
sensor is defective or has
wire breakage
capacity has not been
reached. Filter cartridges
saturated
The negative pressure in the
filter area is too high
Emergency switch-off to
protect against destruction
of the filter cartridges
The set minimum extraction
capacity is greatly undercut.
- 178 -
Note
Have adjustment
checked by a
qualified electrician
Contact service
department
Check of the power
supply by a qualified
electrician
Lift the dust collection
container using the
compressed air valve
Contact service
department
Check the
compressed air
supply and
compressed air
connections, required
pressure 5–6 bar
Check compressed air
supply and
compressed air
connections
Contact service
department
Filter replacement
required/contact
service
Filter change
required/contact
service
Trigger threshold
2800 Pa differential
pressure at the filter
cartridges
EN
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