Pr.343 Communication Error Count; Output Signal Lf "Alarm Output (Communication Error Warning) - Mitsubishi Electric 800 Series Instruction Manual

4.5.13

Pr.343 Communication error count

• The communication error occurrence count can be checked.
Parameter Setting range
343 (Read only)
NOTE
• The communication error count is temporarily stored in the RAM memory. The value is not stored in EEPROM, and so
is cleared to 0 when power is reset and the inverter is reset.
4.5.14

Output signal LF "alarm output (communication error warning)"

• During a communication error, the alarm signal (LF signal) is output by open collector output. Assign the terminal to be used
using any of Pr.190 to Pr.196 (output terminal function selection).
Master
Alarm data
Slave
Communication
error count
(Pr.343)
Signal LF
NOTE
• The LF signal can be assigned to an output terminal by setting Pr.190 to Pr.196. Changing the terminal assignment
may affect other functions. Set parameters after confirming the function of each terminal.
Minimum
Initial value
setting range
1 0
Alarm data Normal data
Not increased
0
OFF
ON
Communication error count is increased in
synchronization with leading edge of LF signal
Alarm data
Reply data
1
OFF
Turns off when normal data is received
Alarm data: Data resulting in communication error.
Normal data
Reply data
2
OFF
ON
PARAMETER
4
85