Mitsubishi Electric FR-CC2-H315K Instruction Manual page 140

• Error detection of message data
The following errors are detected in message data from the master. The inverter output is not shut off even if an error is
detected.
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.195 (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), fault history data (read/write), and model information monitor items (read).
• System environment variables
Register
40002 Converter reset
40003 Parameter clear
40004 All parameter clear
40006
Parameter clear
40007
All parameter clear
40009 Converter unit status
*1 Settings in the communication parameters are not cleared.
• Converter unit status
Bit Description
0
RDB (Inverter operation enable (NC contact))
1 0
2 0
3
RDA (Inverter operation enable (NO contact))
*2
4
RSO (Inverter reset)
IPF (Instantaneous power failure/
5
*2
undervoltage)
*2
6
FAN (Fan fault output)
*2
7
ABC1 (Fault)
8 0
9 0
10 0
11 0
12 0
13 0
14 0
15 Fault occurrence
*2 The signal within parentheses ( ) is the initial status. The description changes depending on the setting of Pr.190 to Pr.195 (Output terminal
function selection)
Error description
The data received by the converter unit has different
parity from the specified one (Pr.334 setting).
The data received by the converter unit has a different
stop bit length from the specified one (Pr.334 setting).
The next data has been sent by the master before the
converter unit 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
Write
Write
Write
*1
Write
*1
Write
Read/write
*2
*2
(page 102).
When this error occurs, Pr.343 is
incremented by one.
When this error occurs, the LF signal is
output.
Read/write
Any value
Set H965A.
Set H99AA.
Set H5A96.
Set HAA99.
Refer to the following.
5.7 (N) Communication operation parameters
Converter unit operation
Remarks
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
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