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35
XYZ Machine Tools Ltd
TRAK
2
OP
Installation, Maintenance, Service & Part List Manual
Something is obstructing the
movement of the ATC sliding
assembly.
Switch off the air.
Open the ATC cover and try to slide the tool carrier. Visually
inspect for any foreign objects that may be preventing the
movement of the ATC.
There is an air leak in one of the
air lines feeding the ATC in/out
pneumatic cylinder.
With the air switched on, inspect the air lines and fittings for a leak.
ATC in/out pneumatic cylinder is
faulty
Check for air escaping from the ATC in/out pneumatic cylinder.
The solenoid labeled 2 on drawing
27563-2 has failed
If the solenoid is receiving a signal from the computer module, then
press the red button to fire the solenoid to see if it works when
commanded manually. Make sure the table and head are in the
proper place prior to doing this.
The ATC door assist cylinder flow
controls are closed too much, or
the cylinder is jammed so it
cannot move
Check if the cylinder is free to move and pivot. Check if the flow
controls on the door lift are set correctly as described in section 5.9.
4.4.2
Spindle will not orientate properly
Each time a tool change is performed, the spindle must orientate the spindle so the dogs line up with the
ATC fingers that hold the tool.
Do the following Service Codes and procedures:
•
Code 510 – Spindle Setup, set spindle orientation
Possible Cause
Check This
The coupling that couples the
motor to the spindle has come
loose
This is only likely after a heavy crash on the machine. If this
happens you will need to perform service code 510 - spindle
orientation after checking the coupling
The spindle encoder is not being
read properly.
There is an index mark on the spindle encoder that we are reading
to orientate the spindle. Check this by running service code 510.
Make sure parameter 10-19 in the AC drive matches the value set in
service code 510
Poor cable connection at spindle
encoder, AC drive or computer
module.
Check the cable connection at the spindle motor and AC drive. Also
check the cable that runs from the AC drive to the computer module
Spindle Encoder Failure
Verify that all the encoder signals are being sent to the AC drive by
verifying the LEDs for Channel A, B and Z are turning ON and OFF
when the spindle is rotating.
Spindle drive failure
Replace drive
Computer module failure
Replace computer module. See section 5.3
4.4.3
Tool will not clamp or unclamp in the spindle
The automatic draw bar uses pull fingers that close down and pull up simultaneously on the pull stud to lock
the tool holder into the spindle taper. These fingers act in the opposite fashion to release the tool holder.
Tools can be clamped and unclamped manually by pressing the green button on the head. See also section
4.5.5.
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