Mitsubishi Electric FR-E700 Instruction Manual page 408

Communication operation and setting
Communication error count (Pr. 343)
You can check the cumulative number of communication errors.
Parameters
Tab. 6-100: 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. 6-130: Output of the LF signal
NOTE The LF signal can be assigned to the output terminal using any of Pr. 190 to Pr.192. Chang-
ing the terminal assignment may affect the other functions. Make setting after confirming the
function of each terminal.
6 - 268
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: Data resulting in
Parameter
Initial Value
0
Alarm data Normal data
Reply data
ON
communication error.
OFF
I001229E