Chapter 7 Connections; Description Of Terminals - Mitsubishi Electric MELSEC-Q Series User Manual

CHAPTER 7
The connection terminals (transmission cable terminal block) for the AnyWire DB A20 transmission cable can be
connected and disconnected easily.
The transmission cables and power supply cables are connected using the common terminal block.
For compliance with the EMC and Low Voltage Directives, refer to Page 69, Appendix 1.
Even when the compliance with the EMC and Low Voltage Directives is not required, use of an EMC-compliant configuration
may reduce the influence from external noise.
7.1

Description of Terminals

Terminal
D
G
24V
0V
LG
For details on connections to the D and G terminals on the slave module and terminating unit, refer to the relevant
manuals of each product.
AnyWire AnyWire
52
CONNECTIONS
AnyWire DB A20 transmission signal terminal for the master module
D: Transmission cable (+), G: Transmission cable (-)
Connect to the D and G terminals to those on the slave module and terminating unit.
Power supply terminal for driving the transmission circuit for the master module Connect a 24VDC stabilized
power supply to the 24V and 0V terminals.
Connect the LG terminal to the neutral point of the noise filter inserted between the 24V and 0V terminals.
If malfunctions occur due to the power noise in the 24VDC system, ground the LG terminal with the functional
ground terminal (FG terminal) on the programmable controller at a single point.
Transmission line
terminal block
Fixing screws
Description
Transmission line
terminal block
Fixing screws