Initial Setting Of Operation Via Communication - Mitsubishi Electric FR-A820-00046 Instruction Manual

(N) Operation via communication and its settings
5.15.3

Initial setting of operation via communication

Set the action when the inverter is performing operation via communication.
● Set the communication protocol. (Mitsubishi inverter protocol/Modbus® RTU protocol)
● Set the action at fault occurrence or at writing of parameters
Pr.
549
N000
342
N001
349
N010
500
N011
501
N012
502
N013
779
N014
The setting is available only when a communication option is installed.
During communication using the communication option, "E.OP1" or "E.1" is displayed.
FR-A800-E: The parameter is used when the CC-Link IE Field Network Basic is selected (refer to page
5-802).
FR-A800-E: The parameter setting is valid when Pr. 1431 "Ethernet signal loss detection function
selection" = "3" or Pr. 1432 "Ethernet communication check time interval" ≠ "9999" during Ethernet
communication.
NOTE For details regarding the stop mode selection at communication error for the different settings of
Pr. 502 refer to tab. 5-272.
5 - 626
Name
Protocol selection
Communication EEPROM
write selection
Communication reset
selection
Communication error
execution waiting time
Communication error
occurrence count display
Stop mode selection at
communication error
Operation frequency
during communication
error
Initial Setting
Description
value range
0 Mitsubishi inverter protocol (computer link)
0
1 Modbus® RTU protocol
Parameter values written by communication are written to
0
the EEPROM and RAM.
0
Parameter values written by communication are written to
1
the RAM.
0 Enables the error reset function in any operation mode.
0
Enables the error reset function only in the Network
1
operation mode.
Set the time from when the communication line error
occurs until the inverter starts the operation for the
0 s 0 to 999.8 s
communication error (when a communication option is
used).
Displays the communication error occurrence count
0 0
(when a communication option is used).
At fault occurrence
Coasts to stop
0
"E.SER" (FR-A800-E: "E.EHR")
display
ALM signal output
Deceleration stop
"E.SER" (FR-A800-E: "E.EHR")
1
display after stop
0
ALM signal output after stop
Deceleration stop
"E.SER" (FR-A800-E: "E.EHR")
2
display after stop
Operation continued at the
3
set frequency of Pr. 779
Operation continued at the
4 set frequency of Pr. 779
"CF" display
Set the frequency to be run at a communication error
0 to 590 Hz
occurrence.
9999
The motor runs at the frequency used before the
9999
communication error.
Parameters
At fault removal
Stays stopped
"E.SER" (FR-A800-E: "E.EHR")
display
Stays stopped
"E.SER" (FR-A800-E: "E.EHR")
display
Automatic restart function
Normal operation
Normal operation