
5. TROUBLESHOOTING
B–63465EN/01
92
0103 Baud rete
0113
7
8
600
1200
9 2400
10
11
12
4800
9600
19200
Value Baud rate
(b)External I/O device or Host computer is in trouble
(i) Check whether the setting on communication of external I/O
device or host computer is the same as that of the Digital Servo
Adapter. (baud rate, stop bits,etc.) If they are not the same, change
the setting.
(ii)When spare I/O device presents, check whether it is possible to
realize communication using the spare I/O device.
(c) CPU card or base PC board is faulty
Replace the CPU card or base PC board.
(d)Cable between Digital Servo Adapter and I/O device is faulty.
Check the cable for disconnection or wrong connection.
Details of connection
Digital Servo Adapter JD42
(PCR–EV20MDT)
1
RDA 11 SDA
20V120V
3 DRA 13 ERA
40V140V
5 CSA 15 RSA
6
0V 16 0V
7 CDA 17 (SDB)
8 0V 18 (0V)
9 (RDB) 19
10 20
Relay connector
(DBM–25S)
1
FG 14
2 SDA 15
3 RDA 16
4 RSA 17
5 CSA 18
6
DRA 19
7 SG 20 ERA
8 CDA 21
922
10 23
11 24
12 25 +24V
13
J146
24–VDC power
supply