Mitsubishi Electric FR-S540E-0.4K-EC Instruction Manual page 48

Communication parameters
For details of the program, etc., refer to the instruction manual (detailed) separately
available.
POINT
To make RS-485 communication between the inverter and personal computer,
the operation mode must be set to the "computer link operation mode".
Pr. 79 "operation mode selection"
and
communication parameter n10 "link startup mode selection" = "1"
Parameter
Indication
n1
Communication
station number*
(331)
n2
Communication
speed*
(332)
n3
Stop bit length*
(333)
n4
Parity check
presence/absence*
(334)
n5
Number of
communication
(335)
retries
n6
Communication
check time interval
(336)
n7
Waiting time setting*
(337)
n8
Operation command
source
(338)
"1, 3, 4"
Name
Set the station number for communication
from the RS-485 connector.
0 to 31: Specify the station number of the
48: 4800bps
96: 9600bps
192: 19200bps
0: Stop bit length 1 bit/data length 8
1: Stop bit length 2 bits/data length 8
10: Stop bit length 1 bit/data length 7
11: Stop bit length 2 bits/data length 7
0: Absent
1: With odd parity check
2: With even parity check
Set the permissible number of retries at
occurrence of a data receive error. When
you set "- - -", the inverter will not come to an
alarm stop if a communication error occurs.
0 to 10, - - -
Set the interval of communication check
time. If a no-communication status persists
for longer than the permissible time, the
inverter will come to an alarm stop.
0: No communication
0.1 to 999s
- - -: Check suspended
To make communication, set any value other
than 0 in the communication parameter n6
"communication check time interval".
Set the waiting time from when data is
transmitted to the inverter until response is
made.
0 to 150ms
- - -: Set in communication data
You can choose whether the operation
command is given by the computer or the
external terminal.
0: Command source is computer
1: Command source is external terminal
Extended function parameter list
Description
inverter.
43
Factory
Setting
0
192
1
2
1
- - -
6
- - -
0