HEIDENHAIN TNC 407 (243 020) Service Manual User Manual
Page 122
31-o
SERVICE MANUAL TNC
Issue:
01.09.1995
Page
102
Loosen/remove the fixing screws
Remove
knurled screw
Loosen fixing
Remove
knurled screw
Lift out the processor board; exchange the EPROMs, if required
Insert the new board.
19.6.3 Mounting the Processor Board
The processor board is mounted in the reverse order that is was dismounted.
a) Insert and secure the processor board
Engage the connectors.
Observe that no connectors
switched!
Close the logic unit and close the lock.
Switch on the main switch.
Read in the machine tool data that have been backed up before the exchange
(machine parameters, PLC program, NC programs and tables).
Enter preset values and supplementary operating modes from the tables in
(before ref. mark traverse).
Offset adjustment with code number
Exchange is now finished
Send and store the boards only in the
original packaging that protects them from acquiring
static charge. Never use conventional plastics to wrap the boards in.