4-2
Chapter 4
Installation and Wiring
•
Regarding to the default setting of parameters for each terminal function, refer to the user
′
s guide for
HF-430NEO.
•
Refer to “4.3 Wiring of HF-TM2” as wiring sample.
■
Serial communication (Spring clamp terminal)
•
Two SP terminals and SN terminals are connected internally, so it is available to use for multiple
wiring.
•
When using serial communication, refer to the user´s guide for HF-430NEO.
•
The recommended wire for serial communication terminal is as below;
Single wire: 0.14 to 1.5 mm
2
Stranded wire: 0.14 to 1.0 mm
2
Stranded wire with rod terminal: 0.25 to 0.5 mm
2
Length of stripped wire: 5 mm
Tightening torque: 0.22 to 0.25 N·m (M2 screw)
Terminal
symbol
Terminal name
Description
Electrical
characteristics
R
S4
8
5
c
om
m
uni
ca
tio
n
Se
rial c
om
m
u
nic
at
io
n
SP
SN
RP
BC
RS-485 terminal
for serial
communication
SP terminal: RS-485 differential (+) signal
SN terminal: RS-485 differential (-) signal
RP terminal: Connect to SP via the terminating
resistor
BC terminal: Connect with the signal ground of an
external communication device (also used by FRQ
terminal).
There are are two SP terminals and SN terminals
each, which are connected internally.
Maximum baud rate is 115.2 kbps.
Equipped with
terminating
resistor (120
Ω)
Enable:
Short RP-SN
Disable:
Open RP-SN
4-8
