Chapter 13 Warning Codes
ME300
No. Display on LED Keypad Warning Name Description
3
(CE3)
RS-485 Modbus illegal data value
Action and Reset
Action condition When the length of communication data is too long.
Action time Immediately
Warning treatment parameter N/A
Reset method
“Warning” occurs when Pr.09-02 =
0 and the motor drive keeps running. The drive
resets automatically when receiving the correct communication data value.
Reset condition Immediately reset
Record N/A
Cause Corrective Actions
Incorrect communication
command from the upper unit
Check if the communication command is correct.
Malfunction caused by
interference
Verify the wiring and grounding of the
communication circuit. It is recommended
to separate the communication circuit from the main circuit, or wire
for effective anti-interference performance.
Different communication setting
from the upper unit
Check if the setting for Pr.09-01 and Pr.09-04 are the same as the setting for
upper unit.
Disconnection or bad connection
of the cable
Check the cable and replace it if necessary.
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