Mitsubishi Electric FR-F820-00046, Инструкция по эксплуатации

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Parameters (N) Operation via communication and its settings
FR-F800 5 - 465
Waiting time for the communication line error output after a communication error (Pr. 500)
●
Waiting time for the communication error output after a communication line error occurrence
can be set.
●
When a communication line error occurs and lasts longer than the time set in Pr. 500, it is
recognized as a communication error. If the communication returns to normal within the time, it
is not recognized as a communication error, and the operation continues.
Displaying and clearing the communication error count (Pr. 501)
●
The cumulative count of communication error occurrences can be displayed. Write "0" to clear
this cumulative count.
●
At the point of communication line error occurrence, Pr. 501 "Communication error occurrence
count display" is incremented by 1
I003084E
Fig. 5-233: Recognition of a communication error depending on Pr. 500 setting
NOTES The communication option error (E. 1) is not included in the targets of Pr. 500.
Operations at communication error occurrences can be selected with Pr. 502 "Stop mode selec-
tion at communication error". (Refer to page 5-460.)
I003085E
Fig. 5-234: Communication error count
NOTE Communication error count is temporarily stored in the RAM memory. The error count is stored in
EEPROM only once per hour. If power reset or inverter reset is performed, Pr. 501 setting will be
the one that is last stored to EEPROM depending on the reset timing.
(E.OP1)
Normal Normal Error
Recognition
ON
Pr. 500
setting time
Communication line status
Communication error
Alarm signal (LF)
(Pr. 502 = 3 or 4)
Error
Pr. 500
setting time
Normal Normal Error
Incremented by 1
Count timing depending on
communication line status
Error
Incremented by 1