2.4 Driver Unit/Simple Absolute Unit Alarm Causes and Countermeasures
C2-18
ME0384-4A
Chapter 2 Troubleshooting
Alarm name Causes/countermeasures
voltage drop
Cause: Gateway unit control power supply voltage has dropped to or
below 16.8V (70% of 24 VDC).
1) Control power supply voltage drop
2) 24 VDC power supply capacity is insufficient
3) The power supply voltage has dropped.
4) Malfunction of parts inside the RCON system
Countermeasure: 1) Confirm that voltage of 24 VDC ±10% is being
applied to the gateway unit control power
connector. If the voltage is low, the 24 VDC power
supply may have failed.
2)
Insufficient power capacity for actuator drive. Confirm
the required power capacity in the instruction manual
and replace the 24 VDC power supply.
A, D
Driver
supply voltage
Cause: There is a possibility of component failure inside the RCON
system.
Countermeasure: If it occurs frequently, the probability of RCON
system failure is high. Contact IAI.
0D6 Fan error detection Cause: 1) The number of revolution of the fan in the fan unit mounted
on the driver unit has dropped by 50%.
2)
The number of revolution of the fan unit mounted on the 200V
system power supply unit has dropped by 50%. (When detail
code is 0001H in the alarm list in the teaching tool)
Countermeasure: 1) 2) Replace the fan unit.
Refer to "Specifications Section Chapter 4, 4.4 [How
to replace Fan unit]" and "Specifications Section
Chapter 5, 5.4 [How to Replace Fan Unit for 200V
Driver Unit]" for how to make replacement.
0D8 Deviation overflow Cause: The position deviation counter overflowed.
1) The unit decelerated or stopped due to the influence of
external force or overload during travel.
2)
The excitation detection operation after power ON is unstable.
3) The power supply voltage has dropped.
4) The servo gain number is too low.
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
and start home return again.
3) Check power supply voltage.
4) Adjust the servo gain number.
Software stroke limit over
error
Cause:
The present position of the actuator exceeds the software stroke limit
Countermeasure: Return to the software stroke limit range.
0DC Push-motion operation
range exceeded error
Cause: 1)
The push-back force was too strong after pushing was completed,
pushing back to the push-motion start setting position.
2) The workpiece was pushed during the approach operation
before shifting to push-motion.
Countermeasures: 1) Re-set and reduce the push-back force.
2) Correct the push-motion start setting position to
the front and shorten the approach distance.
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