Jäger Z80-M440.30 S5M, Manual

Page: 32 / 36

Service and repairs
Item no. 10204118, Revision 06 32 ( 36 )
14.2 Malfunctions
The list below can be used to quickly investigate and eliminate faults.
HF spindle not rotating
Cause Troubleshooting
No
power supply
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.
Thermal protection has
been activated
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] ”.)
Frequency converter
has
shut down
q Check the error messages in the frequency converter man-
ual.
HF spindle becomes hot
Cause Troubleshooting
Insufficient cooling
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.
Phase missing q Check all wires in the motor cable for cable breaks.
Machining too heavy
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.
Frequency converter
incorrectly set
q
Compare the values for the HF spindle with the set values
on the frequency converter.