Connection circuits – Yaskawa Large Capacity Sigma II Series User Manual
Page 338
7 Servo Selection and Data Sheets
7.5.18 Cables for Connecting PCs to a SERVOPACK
7-62
Connection Circuits
• With an RS-232C Port
Maximum cable length is 2 m (6.56 ft). The connection circuit is as follows:
• With an RS-422A Port
Connection is also possible to the RS-422A port. In this case, the connection circuit is as
follows:
• Transmission Distance: 30 m (98.4 ft) max.
• Transmission System: RS-422A
• Terminal Arrangement at SERVOPACK End
Table 7.15 Connector Pin Numbers and Signal Names
Pin No.
Signal Name
Signal Circuit Name
Signal Direction
1
TXD
Transmit data (not inverted)
P
∗1
← S
∗2
2
/TXD
Transmit data (inverted)
P
← S
3
RXD
Receive data (not inverted)
P
→ S
4
/RXD
Receive data (inverted)
P
→ S
5
OPH
Reserved pin
-
6
/RXD
Shorting pins 6 and 7 inserts 220
Ω termination resistance
between RXD and /RXD.
7
RT
8
TXD
Transmit data (not inverted)
P
← S
9
/TXD
Transmit data (inverted)
P
← S
10
RXD
Receive data (not inverted)
P
→ S
11
Reserved pin
#
∗3
12
Reserved pin
#
∗3
13
5VPP
Reserved pin
-
14
GND
Signal ground 0 V
-
SERVOPACK end (CN3)
RS-232C port (personal computer end)
4
2
1
4
5
7
2
3
Case
Shield
14
FG
FG
/TXD
/RXD
0 V
0 V
/RXD
RTS
CTS
/TXD
SERVOPACK end (CN3)
RS-422A port (personal computer end)
4
6
7
2
3
1
Case
Shield
14
FG
/TXD
/RXD
0 V
0 V
RXD
/RXD
/TXD
TXD