Mitsubishi Electric CC-Link IE TSN FR-A8NCG Instruction Manual page 41

 Displaying and clearing the communication error count
The cumulative count of communication error occurrences can be displayed. Write "0" to clear this cumulative count.
Pr.
501 Communication error occurrence count display
Count timing depending on
communication line status
At the point of communication line error occurrence, Pr.501 Communication error occurrence count display is incremented
by 1.
The cumulative count of communication error occurrences is counted from 0 to 65535. When the count exceeds 65535, the
displayed value is cleared and the counting starts over from 0 again.
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 converter reset is performed, Pr.501 setting will be the one that is last stored to EEPROM
depending on the reset timing.
 Inverter operation at a communication error occurrence
How the inverter operates at a communication line error or an option unit fault can be set.
Pr.
502 Stop mode selection at communication error
779 Operation frequency during communication error


Valid when Pr.502 = "3 or 4".
40
INVERTER SETTING
Name
Normal
Name
Setting range
0
Error Normal
Incremented by 1
Setting range
0 (Initial Value) to 4, 11,
Refer to
12
When a communication error occurs, the inverter
0 to 590 Hz
operates at the set frequency.
The inverter operates at the frequency set before
9999 (Initial Value)
the communication error occurs.
Minimum setting
increments
1 0
Error
Incremented by 1
Description
page 41.
Initial value