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MFC Kit Instructions
Table 8: Voltage Sense Wire Termination
Connector
Termination
Metal tab
3/8" Ring Lug
1/4" Ring Lug
1/2" Ring Lug
Note: Voltage sense wire terminals J1 & J3 accept wire gauges of 16-28 AWG with a tightening
torque of 4.4 in-lb (0.5 Nm). Alternate/Equivalent tabs and ring lugs may be used for terminations.
Please consult with TCI Tech-support if there are any questions for alternate parts.
Modbus RTU
The PQconnect Modbus RTU network communication interface transmits and receives command
and status data from the PQconnect Modbus master over a RS-485 serial link. Modbus RTU is a
simple serial communications protocol originally developed by Modicon for use with Programmable
Logic Controllers (PLCs) in control of industrial devices. Modbus RTU is commonly supported by
most PLCs and is an open, royalty-free communications standard.
The PQconnect implements a Modbus RTU Master/Slave device, which supports two-wire RS-485
signal levels. The PQconnect communication port used for the Modbus RTU interface is connected
directly to the PCB. The communication port is located on the side of the PQconnect board.
Manufacturer
Manufacturer
Part Number
43178-4002
Molex, LLC
TE Connectivity
2-320573-4
Amp Connectors
TE Connectivity
2-31894-2
Amp Connectors
61863-2
Tyco Electronics
Figure 15: PQconnect Modbus RTU Connection
Description
Blade Contact 18-20
AWG Crimp Male
Blade
Ring Terminal
Connector
30
5.0 PQconnect Option
Reactor Size
Small line reactors with six
position terminal blocks.
Large line reactors with copper
bus bar terminals
5
4
Modbus RTU
3
Connections
2
1
5
4
3
2
1
5
M
4
o
3
d
2
1
b
u
s
R
T
U
C
o
n
n
e
c
t
i
o
n
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