IAI MCON-C - Fault Diagnosis; Impossible Operation of Controller

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9.2 Fault Diagnosis
This section describes faults largely divided into four types as follows:
(1) Impossible operation of controller
(2) Positioning and speed of poor precision (incorrect operation)
(3) Generation of noise and/or vibration
(4) Communication not established
9.2.1 Impossible operation of controller
Situation Possible cause Check/Treatment
SYS LED or SYS I/SYS II
LEDs on driver board
turn ON in red when
power is supplied.
(1) Occurrence of alarm.
(2) During emergency-stop.
1) Was the emergency-stop switch
released?
2) EMG- on the system I/O connector
is not connected.
(1) Check the error code with the
teaching tool being connected
and remove the cause by
referring the alarm list.
[Refer to [9.3 Gateway Alarm
and 9.4 Driver Alarm]
(2) 1) Release the emergency stop
switch.
2) Check the connection of the
system I/O connector (EMG-).
[Refer to 2.2 [1] Power Supply
and Emergency Stop]
Both position No. and
start signal are input to
the controller, but the
actuator does not move.
1) Servo OFF condition.
2) The pause signal is OFF.
3) Positioning command is issued to a
stop position.
4) There is no positioning data set to the
commanded position number.
5) Writing the information in a wrong
area for Direct Indication Mode.
1) Are SYS I/SYS II LEDs on the
driver board that the operated
axes are connected turned ON in
green? [Refer to Name for Each
Parts and Their Functions]
Turn ON the servo-on signal
SON.
2) Operation is available when
pause signal *STP is ON and
pause when it is OFF. Turn it ON.
3) Check the sequence or the
settings of the position table.
4) It will generate Alarm Code 0A2
“Position Data Error”. Conduct the
position table setting.
Connected the teaching
tool and supplied the
motor and control power
to controller, but
operation would not start.
(the emergency stop
switch is released on the
teaching tool)
Cable treatment or mode selection.
1) Emergency stop condition
2) Servo OFF condition
3) In pause
1) Supply 24V DC to EMG- terminal
of the system I/O connector.
Warning
If the process of 1) is conducted,
put back the setting as soon as
the adjustment work is finished.
Starting the operation without
putting it back may cause a
serious accident since the
emergency stop is set invalid.
2) 3) Put the operation mode switch
on the front panel of the
controller to “MANU” side, and
select the teach mode on the
teaching tool.
Chapter 9 Troubleshooting