ABB AC 31, Technical Manual

Page: 76 / 221

Technical specifications
ABB Control - AC 31
Page 3-33
1SBC 260400 R1001-b 06.99
7.2.2. 07 SK 53 connection diagram (see Figure 3-16):
- Cabling diagram of the RTS signal:
If RTS active at low level:
RTS+ 5
RTS- 8
CTS white
0V blue (for ex. GND)
Central unit end
MIN DIN 8
Bare wires
end
If RTS active at high level
RTS+ 5
RTS- 8
+10V white (for ex. DTR)
CTS blue
Central unit end
MIN DIN 8
Bare wires
end
- Using the cable for RS 232
RxD 1
TxD 2
GND 7
RTS+ 5
RTS- 8
3
6
Shield
TxD yellow
RxD red
GND black
white cabling depending on RTS
bleu active on high or low level
Shield
Central unit end
MIN DIN 8
Bare wires
end
- Using the cable for RS 485
D1- 2
D1+ 7
RTS+ 5
RTS- 8
3
6
Shield
Yellow not used
D1- red
D1+ black
white cabling depending on RTS
blue active at high or low level
Shield
Central unit end
MIN DIN 8
Bare wires
end
Comment: The ASCII/MODBUS
®
is distinguished from the programming cables by its BLACK
color.