Mitsubishi FR - S500 Instruction Manual page 128

REMARKS
For computer link operation, set 65520 (HFFF0) as the value "888" and 65535
(HFFFF) as the value "- - -".
Refer to page 41 for handling the RS-485 connector.
Refer to the "parameter data code list" (page 177) for the data codes of the
parameters.
<Setting>
To make communication between the personal computer and inverter, the
communication specifications must be set to the inverter initially. If initial setting is not
made or there is a setting fault, data transfer cannot be made.
Note: After making the initial setting of the parameters, always reset the inverter. After
you have changed the communication-related parameters, communication
cannot be made unit the inverter is reset.
Parameter Description
Communication
n1
station number
Communication
n2
speed
n3 Stop bit length
Parity check
presence/
n4
absence
Number of
n5 communication
retries
Communication
n6 check time
interval
n7 Wait time setting
CR LF
n11
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 4800 bps
96 9600 bps
192 19200 bps
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 (multi-function
outputs).
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
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Description
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