Mitsubishi Electric FR-S500 Instruction Manual page 47

Extended function parameter list
Communication parameters
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" ≠ "1, 3, 4"
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)
n9
Speed command
source
(339)
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
external terminal.
0: Command source is computer
1: Command source is external terminal
You can choose whether the speed
command is given by the computer or
external terminal.
0: Command source is computer
1: Command source is external terminal
Description
inverter.
42
Factory
Setting
0
192
1
2
1
0s
- - -
0
0