Yaskawa Error Code A910 Link Page

For 90% of A910 applications involving hoists or high-inertia fans, the "Speed Search" function is the fix.

This article breaks down what this error means, why it happens, and the step-by-step process to get your machinery back online. What is Yaskawa Error A910?

This will help pinpoint whether you are dealing with a software tuning problem or a physical load issue. Share public link

The A910 alarm is specifically defined as a or "Serial Converter Unit Connection Error."

Connect your PC to the drive using the Yaskawa SigmaWin+ Software Tool. Check the value of parameter Pn52B (Overload Warning Level). Ensure it matches factory defaults or calculated machine parameters. Look at your real-time effective torque monitors to determine if the drive is operating above 100% capacity continuously. 4. Technical Specifications Across Yaskawa Platforms Yaskawa Series Code Representation Primary Warning Trigger Associated Hard Faults High internal panel temps / Improper starting torque A.710, A.720 Sigma-5 Motor operating continuously above rated torque bounds A.71, A.72 Sigma-7 Parameter mismatch ( Pn52B ) / Mechanical load spikes A.710, A.720 5. Preventative Maintenance and Best Practices yaskawa error code a910 link

Turn off all power to the drive and wait for the "Charge" LED to extinguish. Carefully open the drive cover and ensure the communication option card is firmly snapped into its slot. Over time, vibration can sometimes cause these cards to wiggle loose. How to Clear the A910 Alarm

In less than 5% of cases, the drive’s main control board is defective. The socket for the option card may have cracked solder joints or a dead communication controller.

Disconnect the motor shaft from the machine's mechanical linkage. Manually turn the ball screw or machine axis. If the axis feels stiff or binds, fix the mechanical alignment, clear debris, and apply industrial grease. Run the motor uncoupled—if the A.910 code disappears, the issue is purely mechanical. Step 2: Inspect Cables and Integrity

The Yaskawa FAQ notes that linear motor applications with serial converters are particularly sensitive to these faults if the encoder pitch is incorrect. For 90% of A910 applications involving hoists or

When the A910 link error occurs, you may notice the following symptoms:

In many configurations, the drive will continue to run while the alarm flashes, but it will trip (stop) if the load is not reduced. Common Causes & Troubleshooting Potential Cause Recommended Action Excessive Mechanical Load

Time) evaluation profile to track thermal accumulation in both the motor and the drive's power circuit board.

If the A910 error persists after replacing the cables and verifying the encoder is properly connected, the encoder inside the motor or the serial converter module may need professional repair or replacement. This will help pinpoint whether you are dealing

If you can provide the (e.g., SGD7S-xxxx), I can help find the precise manual for your device.

Incorrect wiring or faulty contacts in the servomotor or encoder cables can cause erratic current readings.

The overload warning level (Pn52B) might be set too low for the specific application.

Increase the dwell (stop) time between moves to allow the motor to dissipate heat. Confirm Wiring