Control Circuit Terminal Configuration - YASKAWA GA800 Technical Reference

3.5 Control Circuit Wiring
A - External power supply
B - Photocoupler
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Serial Communication Terminals
Refer to Table 3.12 for a list of serial communication terminals and functions.
Type
Modbus Communication
◆

Control Circuit Terminal Configuration

The control circuit terminals are in the positions shown in
A - Terminal block (TB5)
B - Terminal block (TB2-3)
C - Terminal block (TB2-2)
D - Terminal block (TB2-1)
The tightening torque for the terminal screws is shown on the reverse side or the lower front side of the front cover.
118
Figure 3.49 Wiring Digital Input Option (DI-A3)
Table 3.12 Serial Communication Terminals
Terminal Terminal Name
Communication MEMOBUS/Modbus communications
D+
input/output (+)
Use an RS-485 cable to connect the drive.
Communication
D-
output (-)
0 V
AC Shield ground
Figure 3.50 Control Circuit Terminal Arrangement
C - Signal processor
Function (Signal Level)
Note:
Set DIP switch S2 to ON to enable the
termination resistor in the last drive in a
MEMOBUS/Modbus network.
Figure 3.50.
E - Terminal block (TB1)
F - Terminal block (TB3)
G - Terminal block (TB4)
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
• RS-485
• MEMOBUS/Modbus communication protocol
• Maximum 115.2 kbps