Communication operation and setting
Communication error count (Pr. 343)
You can check the cumulative number of communication errors.
Parameters
Tab. 6-107: Number of communication errors
NOTE
The number of communication errors is temporarily stored into the RAM. As it is not stored into
the E²PROM, performing a power supply reset or inverter reset clears the value to 0.
Output terminal LF "alarm output (communication error warnings)"
During a communication error, the alarm signal (LF signal) is output by open collector output. Assign
the used terminal using any of Pr. 190 to Pr. 192 "Output terminal function selection".
Communication
Fig. 6-134: Output of the LF signal
NOTE
The LF signal can be assigned to the output terminal using any of Pr. 190 to Pr. 192. Changing the
terminal assignment may affect the other functions. Make setting after confirming the function of
each terminal.
6 - 282
Setting Range
343
(Read only)
Master
Alarm data
Alarm data
Slave
Error count
(Pr. 343)
Signal LF
OFF
Communication error count is increased in
synchronization with leading edge of LF signal
Minimum Setting Range
1
Normal data
Reply data
ON
OFF
Turns off when normal data is received
Alarm data:
Parameter
Initial Value
0
Alarm data
Normal data
Reply data
ON
Data resulting in
communication error.
OFF
I001229E