DR. JOHANNES HEIDENHAIN
D-8225 Traunreut
Telefon (08669) 31-O. Telex 56831
Kundendienst
SERVICE MANUAL TNC 150
Page 44
Section 3.3
Software Exchange
Caution: When exchanging the software observe the
MOS
, protection procedures!
- After the software exchange has been concluded, the Id. Nos.
of the NC- and PLC-software have to be changed. The descrip-
tion plate for the software numbers is found on the rear of
the Control under the type-plate.
o The cover of the Control can be removed after unscrewing
the 5 cross-head mounting screws (top side)
The Id. No. always ends with . . . . . . 99.
o To exchange the program, the following boards
- Memory Board
2
~- M&in Processor Board 3
- CLP Processor Board 4
have to be removed from the assembled Control
Thereto, lift the board ejector keys and press
outwards, pull out board from above and lay onto MOS
protection mat.
o Push screwdriver blade carefully between EPROM and socket,
remove EPROM with extraction tool and place onto
MOS
protection mat.
o Insert EPROM into appropriate socket using insertion tool.
Important: - When exchanging EPROMs, observe the position
The Id. No. of the Control changes only when a Control is
number (second to last digit of the programmed converted from:
EPROM Id. No.. hexadecimal counting manner) TNC
150
A to TNC 150 B
TNC 150
E to TNC 150 F
- The EPROM package index must point in the same
TNC
150
P to TNC 150 Q
direction as the ICs on the board.
TNC 150 V to TNC 150 W
by use of "B" or "F" type NC Software.
- Visually check if the EPROMs are contacting their
respective sockets after an exchange.
The PAM memory of the Memory Board is unbuffered during
the EPROM (software) exchange. The machine parameters and
any stored user-program are therefore erased!
For continued operation, the machine ~parameters have to be
re-entered into memory.
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