Defect
The milling motor cannot be
switched on. The setting wheel
lights up in blue (BU)
The milling motor stops during
operation. The setting wheel does
not light up
The milling motor stops during
operation. The setting wheel lights
up in red (RD)
The speed cannot be adjusted at
the setting wheel
The speed cannot be controlled
via the PV interface
Cause
The carbon brushes are worn
Mains failure
The overload protection was
triggered
The milling motor is in portal
mode
The power supply of the PV
interface
is
missing
inadequate
The contacting to the portal
connector is insufficient
The PV control cable is defective
The assignment of the PV
interface is incorrectly connected
with the portal system
-32-
Elimination
Take the milling motor to the
MAFELL customer service
Check the mains back-up fuses
Switch off the power switch. Clear
the working spindle before initial
operation
Switch on the power switch and
continue operation with reduced
load/feed rate
Switch off the power supply of the
PV interface
Remove the external connection of
the PV interface
Switch on the power supply of the
/
is
PV interface in accordance with the
specification
Check the contacting
Replace the PV control cable
Connect the PV control cable
according to chapter "Assignment
portal connector"