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7. Unusual diagnosis

7.1. Option error

The error message is displayed when there is hardware error, software error or lose of
connection of wire.
Display of trip information
e-23 (Optional unit fault 2 : 0037H) : Option error

7.2. Disconnection error of network cable

Display of trip information
err8 (Optional unit fault 1: 001BH): Network error stop
*If a network error occurs when c101 is set to "4", it is displayed.
Related parameter
Title Function Setting range Description
c100 Communication error
detection delay time 0.0 to100.0 sec
The waiting time from when a network error occurs
can be adjusted. If a network error continues past the
time set in c100, it is recognized as a
communication error and the operation of the inverter
follows the setting of c101.
When normal communication returns during the
setting time, a communication error is not displayed
and operation is continued.
* Time-out time = CC-Link network time out
+ c100
(communication error detection delay time) [0.1s]
c101 Inverter operation at the
communications loss action 0 to 5 The operation of the drive when the communication
fault occurs can be specified.
c102 Preset speed operation
selection 0 to 15
The operation frequency of the drive when the
communication fault occurs can be specified. (Only
when c101 is set to 5)
c103 Communication time-out
condition selection 0 to 2 Select the communication time-out condition.