IAI America ACON-PO - Manual (Page 85)

75
6. T
roubleshooting
6.3 Alarms, Causes and Actions
(1) Operation Cancellation Alarms
Code Error Cause/action
0A4 Command counter
overflow
Cause: This alarm generates when the value in the command pulse counter
deviates from the range of –134217728 to 134217728.
Action: Check the setting of command pulses.
0B5 Phase-Z position error The position at which phase Z was detected during home return was outside the
specified range or phase Z could not be detected.
Cause: Faulty
encoder
Action: Contact IAI.
0BA Home sensor not yet
detected This alarm indicates that the actuator equipped with a home sensor reached the
mechanical end before a home sensor detection signal was output. (This alarm
also generates when the actuator cannot move because the load is too heavy.)
Cause:
[1] The home sensor is not installed in an appropriate position and thus
cannot be detected.
[2] Open cable or inappropriately installed connector
[3] The work is receiving an external force.
Action: [1] Readjust the sensor installation position.
[2] Perform electrical continuity check to see if the cable is open. Also
check if the connector is installed properly.
[3] Check the mechanisms around the work and make sure the work
does not receive any strong external force.
If the cause cannot be identified, contact IAI.
0BE Homing timeout Cause: After the start of homing, homing does not complete after elapse of the
time set by the manufacturer’s parameter. (This alarm does not
generate during normal operation.)
Action: As one possible cause, the controller and actuator combination may be
incorrect. Contact IAI.
0C0 Excessive actual speed Cause: The motor speed exceeds the maximum speed set by the
manufacturer’s parameter.
This alarm does not generate during normal operation, but it may occur
if the load decreased before a servo error was detected and the motor
speed has increased as a result. This condition occurs due to the
following reasons:
[1] The slide resistance of the actuator is large in some areas.
[2] The load increased due to momentary application of external force.
Action: Check the assembly condition of mechanical parts for any abnormality.
If the actuator itself is suspected as the cause, contact IAI.
0CC Abnormal control
power-supply voltage
The voltage of the 24-V input power supply is excessive (24 V + 20%: 28.8 V or
below).
Cause: [1] The voltage of the 24-V input power supply is high.
[2] Faulty part in the controller
Action: Check the input power-supply voltage.
If the voltage is normal, contact IAI.
0CE Drop in control supply
voltage This alarm indicates that the voltage of the 24-V input power supply has dropped
(24 V-20%: 19.2 V or less).
Cause: [1] Low voltage of the 24V input power supply
[2] Faulty part inside the controller
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.