ABB AC 31, Technical Manual

Page: 72 / 221

Technical specifications
ABB Control - AC 31
Page 3-29
1SBC 260400 R1001-b 06.99
7.1.2. 07 SK 52 connection diagram (see Figure 3-14):
- Diagram of the RTS signal cabling:
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
+10 V 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
Shield
TxD yellow
RxD red
GND black
white Cabling depending on RTS
blue active at high or low level
Shield
Central unit end
MIN DIN 8
Bare wires
end
- Using the cable for RS 485
1
D1- 2
D1+ 7
RTS+ 5
RTS- 8
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 programming cable is distinguished from the ASCII/MODBUS
®
communication
cables by its gray color.