Jäger KA1-03/50, Manual

Page: 36 / 40

Service and repairs
Item no. 10301048, Revision 12 36 ( 40 )
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 [
}
36] ”.)
Frequency converter
has
shut down
q Check the error messages in the frequency converter man-
ual.
Tool change
initiated
q
Turn off the pneumatic system for the tool change.
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.