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HF spindle not rotating
HF spindle becomes hot
HF spindle becomes loud
Sensor does not send any
signals
32 ( 36 )
Service and repairs
14.2
Malfunctions
The list below can be used to quickly investigate and eliminate faults.
Cause
No
power supply
Thermal protection has
been activated
Frequency converter
has
shut down
Cause
Insufficient cooling
Phase missing
Machining too heavy
Frequency converter
incorrectly set
Cause
Tool unsuitable
HF spindle is not
clamped truly or is dis-
torted
Bearings damaged
Cause
No connection to sen-
sor
Troubleshooting
q
Check the frequency converter.
q
Check the machine.
q
Check all electrical connections.
q
Check all wires in the motor cable.
q
Activate the Start/Reset button.
q
Wait until the HF spindle has cooled down.
q
Check the frequency converter for error messages. If no
messages are illuminated, start the frequency converter.
(See also "Spindle becomes hot [} 32]".)
q
Check the error messages in the frequency converter man-
ual.
Troubleshooting
q
Check the power of the chiller.
q
Check the water level of the chiller.
q
Check the connections and the cooling hoses.
q
Check the cooling circuit.
q
Check the chiller for error messages.
q
Check all wires in the motor cable for cable breaks.
q
Check the rotational direction of the HF spindle.
q
Check the rotational direction of the tool.
q
Check the tool for damage.
q
Reduce the machining load intensity.
q
Compare the values for the HF spindle with the set values
on the frequency converter.
Troubleshooting
q
Only use balanced tools.
(Also see the "Tools for high speed cutting [} 27]" section.)
q
Check the tool for damage.
q
Replace damaged tool.
q
Only use spindle holders from the original accessories or
holders produced according to the tolerances specified by
Alfred Jäger
GmbH.
q
Contact
Alfred Jäger GmbH
Troubleshooting
q
Check the lines and connections.
service.
Item no. 10504071, Revision 01
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