Inspect all connections and ensure the encoder is properly grounded.
When troubleshooting, check the "Link" LED's behavior. An active link light accompanying an A.910 warning is strong evidence your network is healthy, and your problem lies in the motor's mechanical or electrical path.
Check for short circuits or ground faults in the main circuit cables. Evaluate Motor/Drive Capacity
[Mechanical Bind / Friction] ───┐ [Incorrect/Faulty Wiring] ──────┼───► [Excessive Motor Current] ───► A.910 Warning [Aggressive Motion Profile] ────┤ [Improper Parameter Pn52B] ─────┘ 1. Mechanical Resistance and High Friction
[A.910 Error Detected] │ ├──► 1. Power Off & Check Cable Integrity (Phasing, Megohmmeter) ├──► 2. Inspect Encoder Feedback Line (Shielding, Continuity) ├──► 3. Decouple Load & Test Jog Operation (Mechanical Binding) └──► 4. Verify Thermal Levels (< 55°C Cabinet Environment) 1. Inspect the Motor Main Circuit Power Lines yaskawa error code a910 link
: If the Overload Warning Level (Pn52B) is set too low for the specific application, the alarm will trigger prematurely.
The overload warning level (Pn52B) might be set too low for the specific application.
This warning occurs when the SERVOPACK detects that the load on the motor has exceeded a predefined threshold (specified in parameter ) for a certain period.
The Yaskawa error code indicates an Overload Warning . This is a cautionary status that precedes more critical overload alarms like A.710 (Instantaneous Overload) or A.720 (Continuous Overload). If the underlying cause is not addressed, the drive will eventually trip a full alarm to prevent the servomotor from overheating. Common Causes Inspect all connections and ensure the encoder is
Check the communication settings in the drive (typically in the or H5-XX parameter groups depending on your specific model, like the GA700 or A1000).
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For further diagnostic steps specific to your model (e.g., Sigma-5 or Sigma-7), you can refer to the official Σ-7 Integrated MP Troubleshooting Manual Yaskawa Knowledge Center parameter adjustment steps
If the initial checks do not resolve the A.910 warning, deeper troubleshooting is required. Check for short circuits or ground faults in
For complex issues or persistent alarms that cannot be cleared, it is recommended to contact a certified repair center like Precision Zone for a full diagnostic. Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd
For specialized repair services of Yaskawa SERVOPACKs, you may look into local industrial automation repair firms that provide testing on Sigam-5/7 units. Prevention Tips
(Overload Warning Level). Adjusting this value can provide more headroom if the application naturally runs close to the limit without actually risking damage. Check Environmental Conditions