IAI America MSCON - Manual (Page 293)

Chapter 8
Troubleshooting
285
8.2 Fault Diagnosis
This section describes faults largely divided into three 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
8.2.1 Impossible operation of controller
Situation Possible cause Check/Treatment
Power supply status LED
turns ON in orange when
the power is turned ON.
Control power supply error (when
overvoltage applied or internal
overcurrent detected)
Check the voltage of the control
power supply (24V DC).
EMG in gateway status
LEDs turns ON in red.
During emergency-stop. To cancel emergency stop, make
short-circuit between EMG+ and
EMG- of the system I/O connector.
(Already short-circuited at delivery)
[Refer to 2.2 [3] Power Supply and
Emergency Stop]
ALM/RDY in gateway
status LEDs turns ON in
orange, or driver status
LED (SV/ALM) for each
axis turns ON in red.
Occurrence of alarm. Check the error code with the
teaching tool being connected and
remove the cause by referring the
alarm list.
[Refer to 8.4 Alarm List.]
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) Is the LED (SV/ALM) on the driver
board that the axis to be operated
is connected turned ON in green?
[Refer to Name for Each Parts
and Their Functions]
Turn ON the servo-on signal
SON.
2) Turn OFF the pause signal STP.
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.
Operation is not
performed even though
the teaching tool is
connected, and power to
the controller motor and
control circuit is supplied.
(the emergency stop
switch is released on the
teaching pendant)
Cable treatment or mode selection
1) Emergency stop condition
2) The pause signal is OFF.
3) In pause
1) When the setting of the
emergency stop circuit is
connected to the system I/O
connecter, cancel the emergency
stop. In case it is difficult to cancel
it for such a reason as starting up,
as a temporary treatment, make
short-circuit between EMG+ and
EMG- 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.