
8. CNC DISPLAY UNIT WITH PC FUNCTIONS
B–63523EN/03
184
1 0V 2 DENSEL
30V 4
50V 6
70V 8:INDEX
90V 10:DS0
11 0V 12 :DS1
13 0V 14 (RES)
15 0V 16 :MTR0N
17 0V 18 :DIR
19 0V 20 :STEP
21 0V 22 :WDATA
23 0V 24 :WE
25 0V 26 :TRK0
27 0V 28 :WPRT
29 0V 30 :RDATA
31 0V 32 HDSEL
33 0V 34 :DSKCH
1 0V 2 DENSEL
30V 4
50V 6
70V 8:INDEX
90V 10:MT0
11 0V 12 :DS1
13 0V 14 :DS0
15 0V 16 :MT1
17 0V 18 :DIR
19 0V 20 :STEP
21 0V 22 :WDATA
23 0V 24 :WE
25 0V 26 :TRK0
27 0V 28 :WPRT
29 0V 30 :RDATA
31 0V 32 HDSEL
33 0V 34 :DSKCH
CNC display unit with PC functions Panel–mount type 3.5″ floppy
disk drive
CD34
AMP EI series 4–pin connector
Housing: 171822–4
Contact: 170262 and 170263
1 +12V
20V
30V
4 +5V
1 +5V
20V
3 (NC)
4 (NC)
HIF3BA–34D–2.54P
produced by Hirose
Electric
CN2
1 2 3 4
AB
4 3 2 1
J2
NOTE
1 This is a standard interface for the IBM PC compatible. Note the following:
D Only two floppy disk density modes (720 Kbytes and 1.44 Mbytes) are supported.
D The DENSEL signal level is fixed to low.
D Can not used floppy disk drive unit that needs 12V.
2 Commercial floppy disk drives are prone to compatibility problems with personal computers to
some degree. It is not guaranteed that the CNC display unit with PC functions can operate with
every commercial floppy disk drive. Machine tool builders are requested to check the
operability of the floppy disk drives they select. Keep in mind that commercial floppy disk drives
are neither dust–proof nor moisture–resistant.
3 The interface on the drive side shown above is only an example. Design an interface cable
according to the specification of the drive with which it is used.
8.7.3
Floppy Disk Drive
(Signal and Power
Supply)