Memobus/Modbus Terminals And Terminal Resistor Switch - YASKAWA V1000 Series Installation & Start-Up Manual

C.1 MEMOBUS/Modbus Basic Set-Up
Figure C.3
A – DIP switch S2
B – OFF
Figure C.3 MEMOBUS/Modbus Terminals and Terminal Resistor Switch
Note: 1. Separate the communication cables from the main circuit cables and control circuit wiring.
2. Use shielded cables for the communication cable, and use proper shield clamps. Shield at one end only.
3. When using RS-485 communication, connect S+ to R+, and S- to R-, on the control circuit terminal
board. Refer to
Serial Communication Terminals
■
Table C.3 Control Circuit Terminals: Serial Communications
Type
MEMOBUS/Modbus
Communication
404
Figure C.4.
No. Signal Name
R+ Communications input (+)
R– Communications input (–)
S+ Communications output (+)
S- Communications output (–)
IG Shield ground
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
A
B C
C – ON
D –
Function (Signal Level)
Default Setting
MEMOBUS/Modbus
communication:
Use a RS-485 or RS-422
cable to connect the drive.
0 V
RS-485/422
MEMOBUS/Modbus
communication protocol
115.2 kBps (max.)