Wiring Diagram of LTMT Main Units Connected with Terminal Connector
LTMT Main Units Connected with Terminal Connector
The wiring diagram for connection of LTMT main units installed in an enclosure with the RS 485 bus via 4-terminal connectors is as follows:
Wiring Diagram of the Terminal Connector
Terminal Connector Assignment
|
Terminal |
Signal |
Description |
|---|---|---|
|
A |
RD-/TD- | Negative data transmission |
|
B |
RD+/TD+ | Positive data transmission |
|
Blank |
– | Not used |
|
|
– | Shielded earth |
Wiring Characteristics
The PROFIBUS DP cable must be a shielded twisted pair cable. PROFIBUS DP TSXPBSCA-00 shielded cable is recommended.
The following table describes the characteristics of screw terminals:
|
Pitch |
5 mm |
0.2 in. |
|
Tightening torque |
0.2 N•m |
3 lb-in |
|
Flat screwdriver |
3 mm |
0.10 in. |
Screw terminals have an insulation rating of 320 Vac.