IAI America ACON-PO - Manual (Page 87)

77
6. T
roubleshooting
(2) Cold Start Alarms
Code Error Cause/action
0A1 Parameter data error Cause: The parameter data does not meet the specified input range.
(Example) This alarm generates when a pair of values clearly has an
inappropriate magnitude relationship, such as when the soft
limit + setting is 200.3 mm, while the soft limit – setting is
300 mm.
Action: Change the settings to appropriate values.
0A8 Motor/encoder type not
supported
Cause: The monitor type or encoder type set in the applicable parameter is not
supported.
Action: If this error persists after reconnecting the power, contact IAI.
0B4 Electrical angle mismatch Cause: The position deviation counter has overflowed.
Action: Check the load condition, such as whether the work is not contacting
any nearby object or if the break is released.
If the electrical angle is not yet confirmed (phase Z is not yet detected),
deviation overflow may be a cause. In this case, check the cable
connection because deviation overflow can be caused by a broken
motor wire or encoder line output error.
0B7 Indeterminate magnetic
pole This controller will conduct magnetic pole phase detection when the servo is
first turned ON after the power is input. This alarm indicates that the magnetic
pole phase cannot be detected even with a lapse of a specified period of time.
Cause:
[1] The connector of the motor relay cable is loose or its circuit is open.
[2] If the actuator is equipped with a brake, the brake has not been
released.
[3] The motor load increased due to application of external force.
[4] The slide resistance of the actuator itself is high.
Action: [1] Check the wiring condition of the motor relay cable.
[2] Check the wiring condition of the brake cable, and also turn on/off
the brake release switch to check if “click” sound is heard.
[3] Check the assembly condition of mechanical parts for any
abnormality.
[4] If the load is normal, cut off the power and move the actuator by
hand to check the slide resistance.
If the actuator is suspected to be the cause, please contact IAI.
0C8 Overcurrent Cause: The output current of the power-supply circuit became abnormally high.
This alarm should not generate in normal conditions of use. If it
generates, the insulation of motor coil may have deteriorated.
Action: Measure the inter-phase resistances among motor connection wires U,
V and W, as well as the insulation resistance between the motor
connection wires and ground, to check for deterioration of insulation.
Before executing measurement, please contact IAI.
0CA Overheat Cause: [1] The temperature around the power transistor in the controller is
excessively high (95 qC or above).
[2] When the actuator is installed vertically, regenerative resistance
energy is insufficient during downward movement because of a high
deceleration setting.
[3] Defective part in the controller
Action: [1] Lower the temperature around the controller.
[2] Revise the specified conditions to make the deceleration curve more
gradual.
If neither action [1] nor [2] improves the situation, contact IAI.