Yaskawa Error Code A910 Exclusive Now

Yaskawa A.910 error code Overload Warning . It is not a hard "alarm" that will immediately stop your machine, but rather a final warning that you are about to trigger a full (Instantaneous Maximum Load) or (Continuous Overload) alarm. Yaskawa.eu.com

Yaskawa Servopack Fault Codes Guide | PDF | Power Supply - Scribd yaskawa error code a910 exclusive

Diagnostic Steps (Exclusive to A910)

| Step | Action | Expected Result | | :--- | :--- | :--- | | 1 | Monitor U1-07 (DC Bus Voltage) during normal run. | Should be ~1.35x input voltage (e.g., 540-620VDC for 400V class, 270-310VDC for 200V class). | | 2 | Check L2-05 (Undervoltage detection level). Factory default is usually 380VDC (400V class). If set too high, nuisance A910 occurs. | Lower L2-05 by 5-10% only if power supply is truly unstable. | | 3 | Check L2-01 (Momentary Power Loss Ride-Thru Time). Default = 1.0 sec. | Increase to 2.0 seconds if utility sags are common. | | 4 | Measure input voltage while running at 100% load. | Voltage drop should not exceed 10% from no-load to full-load. | Yaskawa A

Inspect the CPU Board: Since this is a CPU error, the board itself may be defective. If the fault persists after power cycling, the unit may require replacement. Exclusive access conflict : When multiple processes or

Yaskawa Error Code A910: Understanding the “Exclusive” Alarm

In the world of industrial automation, Yaskawa drives (specifically the GA800, GA700, A1000, and U1000 series) are known for their reliability. However, when an error code appears, it demands immediate attention. Among the various alarms, Error Code A910 stands out as particularly “exclusive” due to its specific cause: it is a hardware-exclusive alarm related to the drive’s charging circuit.

In simple terms: The drive is saying, "I cannot start moving because something else is currently in control of my state."

1. Exclusive access conflict: When multiple processes or programs attempt to access the same resource or function simultaneously, it can lead to a conflict, resulting in the A910 error.
2. System configuration issues: Incorrect configuration or setup of the device can cause the A910 error.
3. Communication problems: Faulty or loose communication cables, incorrect communication settings, or conflicts with other devices on the network can contribute to the error.
4. Software or firmware issues: Outdated or corrupted software or firmware can lead to compatibility problems, causing the A910 error.

Remember the golden rule of A910: The operator is usually a victim, not the culprit. The drive’s control board, power supply, or interconnects are the true sources 80% of the time.

• The Drive's Logic: The IGBTs are switching. A voltage sag happens. The drive cannot maintain torque control. It immediately faults to protect the transistors from overcurrent due to insufficient voltage.
• The "Exclusive" Nuance: On some Yaskawa drives (especially GA800), A910 will trigger before a hardware damage fault like UV1. It acts as a "soft" fault to ride through minor sags, but if the sag persists, it escalates.