IAI America SCON-C - Manual (Page 235)

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Appendix
Code Error name Cause/Action
0E4 Encoder send error When the encoder is of serial data communication type, the controller
exchanges position data with the encoder via serial communication.
This error indicates that the encoder could not successfully receive data sent
by the controller.
Cause: [1] Data turned garbage due to noise.
[2] The communication IC installed on the encoder board is faulty.
[3] The communication IC installed on the controller board is faulty.
Action: [1] Cut off the power to all peripherals and operate the controller and
actuator only. If the error no longer occurs, noise may have
triggered the error.
If [2] or [3] is the case, the encoder or controller must be replaced.
If the cause cannot be specified, contact IAI.
0E5 Encoder receive error When the encoder is of serial data communication type, the controller
exchanges position data with the encoder via serial communication.
This error indicates that the encoder did not return correct data in response to a
request from the controller.
Cause: [1] The encoder relay cable or supplied actuator cable is disconnected
or its connector is not plugged in correctly.
[2] Data turned garbage due to noise.
[3] The communication IC installed on the encoder board is faulty.
[4] The communication IC installed on the controller board is faulty.
Action: [1] Check the connector for open circuit or examine its connection
condition. (Conduct continuity check by referring to the explanation
of the encoder sensor cable in 2.2, “Name and Function of Each
Part” of Chapter 1.)
[2] Cut off the power to all peripherals and operate the controller and
actuator only. If the error no longer occurs, noise may have
triggered the error.
If [3] or [4] is the case, the encoder or controller must be replaced.
If the cause cannot be specified, contact IAI.
0E6 Encoder count error When the encoder is of serial data communication type, this error indicates that
the ASIC board installed in the encoder cannot detect position information
correctly.
Cause: [1] Foreign matter is deposited on the code wheel.
[2] The position relationship of the code wheel and photo-sensor
changed due to misalignment caused by application of excessive
external force, etc.
[3] Faulty encoder board component
Action: It is necessary to clean the code wheel (by air blow), readjust its
installation position, or replace the motor unit or actuator.
In any case, contact IAI.
0E7 Open phase A/B/Z When the encoder is not of serial data communication type, this error indicates
that encoder signals cannot be detected correctly.
Cause: [1] The encoder relay cable or supplied actuator cable is disconnected
or its connector is not plugged in properly.
[2] The encoder itself is faulty.
Action: [1] Check the connector for open circuit or examine its connection
condition. (Conduct continuity check by referring to the explanation
of the applicable accessory cable in 2.5.)
If the cables are normal, a faulty encoder is suspected. Contact IAI.