Yaskawa i80M Maintenance Manual - Manual (Page 94)

4.2 TROUBLESHOOTING BY ALARM CODES (Cent’d)
For example, to switch from the first port to second
port:
❑
Put the cursor on the port to switch to.
❑
Depress the operation selection key .
❑
1 Depressing the desired soft key writes data to the
cursor position determined above.
Table 4.4 shows voltage levels and Table 4.5
shows interface connection cables.
Table 4.4 RS-232C Voltage Levels
Function
Signal Status Mark Space
Logic 1 0
Table 4.5 Connection Cable (A) for Terminal Connection Interface
NC Side (D B-9P)
External
Connection
Equipment
Symbol Signal Pin No. Symbol
FG Frame Grounding 1 FG
SD Send Data 2 SD
RD Receive Data 3 R D
RS Send Request 4 0 RS
Cs Sendable 5 Cs
DR Data Set Ready 6 DR
SG Signal Grounding 7 0
\
o SG
ER Data Terminal Ready 9 IO BUSY
ER
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