Rs485 Communication Settings - Omron 3G3RX User Manual

Single wire
Stranded wire
Stranded wire with solderless terminal
Wire strip length
Tightening torque
•Connection
Connect the Inverters parallel to each other, as shown below. For the termination Inverter, short-
circuit the RP and SN terminals. (Also, if the RS485 communication function is used with a single
Inverter, the RP and SN terminals must be short-circuited.)
Short-circuiting the RP and SN terminals activates the termination resistor inside the control
terminal block board, suppressing signal reflection.
External controller
Setting
RS485 communication requires the following settings.
Parameter No. Function name
Communication speed
C071 selection
(Baud rate selection)
Communication station
C072
No. selection
Communication bit
C073
length selection
Communication parity
C074
selection
Communication stop bit
C075
selection
Communication error
C076
selection
Communication error
C077
timeout
SP SN RP SN SP SN
02: Loop-back test
03: 2400 bps
04: 4800 bps
05: 9600 bps
06: 19200 bps
1 to 247
7: 7-bit
8: 8-bit
00: No parity
01: Even
02: Odd
1: 1-bit
2: 2-bit
00: Trip
01: Decel-Trip (Trip after deceleration stop)
02: Ignore
03: Free-RUN (Free-run stop)
04: Decel-Stop (Deceleration stop)
0.00 to 99.99: Communication
disconnection judgment time
4-4 Communication Function
2
0.14 to 1.5 mm
(If two equal-sized wires are connected to one pole:
2
0.14 to 0.5 mm )
2
0.14 to 1.0 mm
(If two equal-sized wires are connected to one pole:
2
0.14 to 0.2 mm )
2
0.25 to 0.5 mm
5 mm
0.22 to 0.25 N•m (screw size: M2)
RP SN
Data
SP SN RP SN
Default setting Unit

05

1

8

00

1

02
0.00 s
4-146
4