2.4 Driver Unit/Simple Absolute Unit Alarm Causes and Countermeasures
C2-24
ME0384-4A
Chapter 2 Troubleshooting
Alarm name Causes/countermeasures
S
Driver
limited
voltage low
Cause: 1) If the power source is shut off in the controller external
circuit, servo-on command was made during the power is
shut.
2) Overcurrent occurred on the 200V motor power supply line.
3) There is a concern of a malfunction of the controller internal
components.
Countermeasure: 1) Check the controller external circuit.
2) Check the wiring between actuators and the
driver unit. In case it occurs frequently, contact IAI
and tell the environment of use and operating
conditions.
3) If this error occurs often, there is a concern of a
controller malfunction. Please contact us.
P, A, D
Driver
limited
Cause: 1)
24V Motor power input voltage (input to MPI terminal) is excessive.
During acceleration/deceleration or servo ON, etc,,
consumption current rises momentarily. When remote sensing
function is used with power of barely sufficient capacity,
overvoltage may occur in response to the current change.
2) Overcurrent generated in 24V motor power line.
Countermeasure: 1) Check power supply voltage being input to MPI
terminal. Consider using a power supply with
sufficient capacity, or avoid using the remote
sensing function.
2) Check the wiring between the actuator and the
driver unit.
If this error occurs frequently, contact IAI regarding
the operating environment and operating conditions.
0D5
P
Driver
limited
Deviation counter
overflow in homing
incomplete status
Cause: The position deviation counter overflowed.
1) Impact of external force, etc. or collision with mechanical
end during JOG operation, or overload during travel caused
the unit to decelerate or stop.
2)
The excitation detection operation after power ON is unstable.
Countermeasure: 1) This occurs when the actuator cannot operate
according to commands. Check the load
condition, such as whether the workpiece is
interfering with surrounding objects, whether the
brake is released, etc., and resolve the cause.
2)
There may be an overload, so review the payload.
S
Driver
detected
Cause: The belt of the ultra-high thrust RCS2-RA13R is broken.
Countermeasure: Belt must be replaced. Please contact IAI.
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