Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 661
Fr-a800 series
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Also See for FR-A820-00046 (0.4K):
- Instruction manual (1218 pages) ,
- Instruction manual (1042 pages) ,
- Instruction manual (914 pages)
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Error check items
Error item
Parity error
Framing error
Overrun error
Message frame error
CRC check error
NOTE
• The LF signal can be assigned to an output terminal by setting Pr.190 to Pr.196 (Output terminal function selection).
Changing the terminal assignment may affect other functions. Set parameters after confirming the function of each terminal.
MODBUS register
• The following shows the MODBUS registers for system environment variables (read/write), real time monitor items (read),
parameters (read/write), faults history data (read/write), and model information monitor items (read).
• System environment variables
Register
40002
40003
40004
40006
40007
40009
40010
40014
40015
*1
Settings in the communication parameters are not cleared.
*2
The data is written as a control input command for writing.
The data is read as the inverter status for reading.
*3
The data is written as an operation mode setting for writing.
The data is read as the operation mode status for reading.
660
5. PARAMETERS
5.15 (N) Communication operation parameters
The data received by the inverter is different from the
specified parity (Pr.334 setting).
The data received by the inverter is different from the stop
bit length (Pr.334) setting.
The next data has been sent by the master before the
inverter completes receiving the preceding data.
The data length of the message frame is checked, and an
error is generated if the received data length is less than
4 bytes.
An error is generated if the data in the message frame
does not match the calculation result.
Definition
Inverter reset
Parameter clear
All parameter clear
*1
Parameter clear
*1
All parameter clear
Inverter status / control input command
Operation mode / inverter setting
Running frequency (RAM value)
Running frequency (EEPROM value)
Error description
Read/write
Write
Write
Write
Write
Write
*2
Read/write
*3
Read/write
Read/write
Write
Inverter operation
When this error occurs, Pr.334 is
incremented by one.
When this error occurs, the LF signal is
output.
Remarks
Any value
Set H965A.
Set H99AA.
Set H5A96.
Set HAA99.
Refer to the following.
Refer to the following.
The display can be changed to the rotations
per minute using Pr.37, Pr.144 and Pr.811.
(Refer to
page
424.)
- Quick Links:
- Parameter List
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Troubleshooting
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