9. Troubleshooting
Fieldbus Communication
228
RCP6
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) Impossible Communication.
9.2.1 Impossible Operation of Controller
Situation Possible cause Check/Treatment
At power-on, SV on the
status indicator LEDs
does not go ON.
(1) Proper power is not supplied.
(2) Servo-on command is not input to
IAI controller.
The operation mode setting switch
on the front panel is on “MANU”
side.
(3) Occurrence of alarm.
(4) During emergency-stop.
1) Was the emergency-stop switch.
2) EMG- on the power supply
connector is not connected.
(1) Ensure that appropriate voltage
is supplied and the wiring is in
the right condition.
[Refer to 2.3.1 Wiring Layout of
Power Supply Connector.]
(2) Can such operation as jogging
be performed from the teaching
tool such as PC software? Set
the operation mode setting
switch on the front panel and
restart the controller.
[Refer to Name for Each Parts
and Their Functions.]
(3) Check the error code with the
teaching tool being connected
and remove the cause by
referring the alarm list.
[Refer to 9.4 Alarm List.]
(4) 1) Release the emergency stop
switch.
2) Check the connection of the
power connector (EMG-).
[Refer to 2.3.1 Connection to
Power Input Connector.]
ALM in the status display
LEDs turns on when the
power is supplied.
(1) Occurrence of alarm
(2) During emergency-stop.
1) Was the emergency-stop switch.
2) EMG- on the power supply
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 9.4 Alarm List.]
(2) 1) Release the emergency stop
switch.
2) Check the connection of the
power connector (EMG-).
[Refer to 2.3.1 Connection to
Power Input Connector.]
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