Mitsubishi Electric FR-S520E Series Instruction Manual page 155

<Setting>
To make communication between the personal computer and inverter, initialization of
the communication specifications must be made to the inverter. If initial setting is not
made or there is a setting fault, data transfer cannot be made.
*After making the initial setting of the parameters, always reset the inverter. After you
have changed the communication-related parameters, communication cannot be
made until the inverter is reset.
Parameter Name
Communication
n1
station number
Communication
n2
speed
Stop bit length/
n3
data length
Parity check
n4 presence/
absence
Number of
n5 communication
retries
Communication
n6 check time
interval
Waiting time
n7
setting
n11 CR/LF selection
Setting
Station number specified for communication from
the RS-485 connector.
0 to 31
Set the inverter station numbers when two or more
inverters are connected to one personal computer.
48 4800bps
96 9600bps
192 19200bps
0 Stop bit length 1 bit
8 bits
1 Stop bit length 2 bits
10 Stop bit length 1 bit
7 bits
11 Stop bit length 2 bits
0 Absent
1 Odd parity present
2 Even parity present
Set the permissible number of retries at occurrence
of a data receive error.
0 to 10 If the number of consecutive errors exceeds the
permissible value, the inverter will come to an alarm
stop (OPT).
If a communication error occurs, the inverter will not
come to an alarm stop. At this time, the inverter can
be coasted to a stop by MRS or RES input.
---
During a communication error (H0 to H5), the minor
(65535)
fault signal (LF) is switched on. Allocate the used
terminal with any of Pr. 64, Pr. 65 (output terminal
function selection).
0 No communication
Set the communication check time [s] interval.
If a no-communication state persists for longer than
0.1 to 999
the permissible time, the inverter will come to an
alarm stop (OPT).
--- Communication check suspension.
Set the waiting time between data transmission to
0 to 150
the inverter and response.
--- Set with communication data.
0 Without CR/LF
1 With CR, without LF
2 With CR/LF
145
Communication parameters
Description
2