Connect each inverter in parallel as shown below. It is necessary to short terminals RP and SN on the last
inverter in the link(even if communication is to only one inverter the link should still be mabe)
By shorting between RP and SN, the terminal resistance is increased and controls the reflection of the signal.
External control
machines
SP SN RP SN
SP SN RP SN
SP SN RP SN
(2) Setting
The following setting are required to operate RS485 communication
Data command
Communicating
transmission
speed
Communication
code
Operator
RS485
Option 1
Option 2
Loop-back test
C070
C071
C072
C073
C074
02
03
04
05
02
03
04
05
06
7
8
00
01
02
1
2
2400bps
4800bps
9600bps
19200bps
This assigns the station number of the inverter. This is
used when you control more than one simultaneously.
C075
C078
Communicatio bit
Communication
waiting time
7bit
8bit
No parity
Even parity
Odd parity
1bit
2bit
Units : ms Refer to it.(3)
0. ~1000.
1. ~32.
Set item
Function code
Set value
Description
Communication bit
Communication
parity
Chapter 4 Explanation of function
N300-P INSTRUCTION MANUAL
Содержание N300-P
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