96
Modbus RTU control (RS-485 communication)
11.11.3 Alarms related to RS-485 communication
If an alarm related to RS-485 communication is generated, the motor will stop operating and the PWR/ALM LED on the
driver will blink in red.
Alarm code Alarm type Description
84h RS-485 communication error
The RS-485 communication error alarm is generated when the RS-485
communication error consecutively occurs by the number of times set in the "RS-
485 communication error alarm" parameter.
Only the RS-485 communication error of communication errors is counted, and the
number of times counted is not increased when other communication errors occur.
When the communication is performed properly, the number of times that has
counted is reset.
85h RS-485 communication timeout
An alarm is generated when the time set in the "RS-485 communication timeout
alarm" parameter has elapsed and yet the communication is not established with
the host controller.
When RS-485 communication is performed properly, the time that has counted is
reset.
11.11.4 Information related to RS-485 communication
If information related to RS-485 communication is generated, the motor will continue operating and the PWR/ALM LED
on the driver will blink in orange.
z
RS-485 communication error information
The RS-485 communication error information is generated when the RS-485 communication error consecutively
occurs by the number of times set in the "RS-485 communication error information" parameter. Only the RS-485
communication error of communication errors is counted, and the number of times counted is not increased when
other communication errors occur. When the communication is performed properly, the number of times that has
counted is reset.
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