HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 125)

31-O
SERVICE MANUAL TNC
Issue:
01.09.1995
Page 105
19.8 Exchanging the PLC Board PL 400
a) Switch off the main switch.
Loosen the plug connections and the screw terminals at the PLC board
apart the terminal
clamp using a screwdriver
Loosen the from the cover of the PLC board, remove cover and disconnect the connecting cable
to the PLC board from the PLC board.
disconnect the
Loosen screws
Loosen cable strap