In rare cases, insufficient voltage to the encoder (5V) can lead to data loss. Troubleshooting and Resolving A910
Debris, scrap material, or foreign objects wedged in the axis will physically restrict movement. 2. Aggressive Operating Profiles (Duty Cycle issues)
Elias felt a knot tighten in his stomach. He didn't even need to pull out his phone to check the manual; he knew this one. It was the bogeyman of Yaskawa error codes. The white whale.
Change the value to (this resets the accumulated operating time percentage back to zero). Press ENTER on the keypad to save. yaskawa error code a910
✓ Check U, V, W connections ✓ Measure phase-to-phase resistance (should be balanced) ✓ Test motor directly on line power ✓ Inspect output contactor (if used) ✓ Disable detection ONLY for diagnosis
If the servo loops are tuned too aggressively, the motor may experience high-frequency micro-oscillations (hunting). While invisible to the naked eye, this constant corrections draw high amounts of RMS current, triggering an overload. 4. Wiring and Hardware Failures
[A910 Code Appears] │ ▼ 1. Isolate Power & Inspect Fan Physically ├── Visual Blockage? ──► Clean with Compressed Air └── Seized Blades? ──► Replace Fan Assembly │ ▼ 2. Check Fan Wire Harness & Connectors └── Loose Plug? ──► Reseat Connector Firmly │ ▼ 3. Verify Fan Parameter Settings └── Incorrect Logic? ──► Adjust o4-03 / L8-32 │ ▼ 4. Test Fan Volts & Bearings (Power On) └── No Voltage? ──► Control Board Failure Step 1: Visual and Manual Inspection In rare cases, insufficient voltage to the encoder
: Ensure the control panel is well-ventilated and that any internal SERVOPACK fans are functioning correctly.
To resolve the Yaskawa A910 error, follow this diagnostic troubleshooting sequence:
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The official Yaskawa warning message defines code A.910 as "Overload," specifying that it is a "warning before an A.710 or A.720 alarm occurs". Its primary function is to alert you that the motor is being driven beyond its rated capacity. It's a crucial safety system, giving you a chance to diagnose and fix a problem before the drive shuts down to protect itself and your equipment. The alarm codes A.710 and A.720 are the subsequent alarm states after A.910 is ignored.
You can check exactly how many hours the fan has logged by navigating the drive’s monitor parameters ().
Yaskawa designs most of their drives with modular fan cartridges. You usually do not need to open the main chassis of the drive.