Exchanging The Mc 6241 - HEIDENHAIN iTNC 530 HSCI Service Manual

29.5 Exchanging the MC 6241

Preparing the If still possible:
machine tool
Backup of
non-volatile PLC
markers and words
Removing the
defective MC 6241
Mounting the
new MC 6241
Accepting After start-up, the control may display the window Hardware/firmware change detected.
hardware updates
29 – 534
Move the machine to home position (axes, tool changer, tilting head, etc.)
Ask the machine operator!
Press EMERGENCY STOP.
Back up the condition of non-volatile PLC markers and words from the RAM to the data medium.
--> See "Non-volatile PLC markers and words" on page 11 – 134.
Switch off the machine, take precautions against resetting, ensure that the equipment is free of
potential.
Label all lines and cables and disconnect them from the MC.
Unscrew the ground wire or the ground bar.
Dismount the MC.
Attention
Observe the ESD precautions. --> See "Important information" on page 29 – 515!
Remove the HDR. --> See "Replacing the HDR" on page 29 – 543.
Remove the SIK (slot X125 on bottom).
Attention
The SIK (System Identification Key) remains with the machine.
It must be inserted into the new or replacement MC; i.e. all enabled options are still available.
Only defective SIKs are exchanged.
If options were enabled on the defective SIK, you will receive the code numbers to enable these
on your new SIK after giving us the number of your defective SIK.
The SIK number is displayed on the screen after you have entered the SIK code number.
The SIK number is also printed on the ID label applied onto the board of the SIK.
The defective SIK must be returned!
Insert the HDR into the new MC 6241and fix it. --> See "Replacing the HDR" on page 29 – 543.
Insert the SIK into the new MC 6241.
Mount the MC 6241.
Screw on the ground wire or the ground bar.
If required, remove the red protective caps from the MC connectors.
Reconnect and attach all lines and cables.
Attention
Do not forget the grounding screw! Do not confuse any of the connectors!
Switch on the power switch of the machine.
Accept these changes. --> See "Recognizing and accepting hardware updates" on page 29 – 523.
HEIDENHAIN Service Manual iTNC 530 HSCI