Yaskawa Error: Code A910 Exclusive

When troubleshooting a machine actively displaying an A.910 code, execute these standard diagnostic steps:

[Isolate the Cause of the A.910 Alarm] │ ├──► Step 1: Monitor Motor Current (via Monitor Mode Un002 or SigmaWin+) │ ├── Current > Rated? ──► Go to Step 2 (Mechanical/Sizing) │ └── Current < Rated? ──► Go to Step 4 (Parameters/Wiring) │ ├──► Step 2: Disconnect Mechanical Load │ ├── Rotates Freely? ──► Check Sizing, Duty Cycle, or Acceleration │ └── Mechanics Bind? ──► Repair Ball Screws, Bearings, or Alignments │ ├──► Step 3: Check Enclosure Environment │ └── Temp > 55°C? ──► Replace Fans, Clean Filters, or Add AC │ └──► Step 4: Validate Drive Electricals & Parameters ├── Check Pn52B ──► Adjust Overload Warning Threshold └── Check Resistance ──► Test U, V, W Cable Continuity & Insulation

: Reconsider the operating conditions or increase the motor capacity if it is undersized for the application. yaskawa error code a910 exclusive

Review the Pn52B parameter to ensure the warning threshold is appropriate for your operation.

The load or duty cycle exceeds the motor's rated torque. When troubleshooting a machine actively displaying an A

: Ensure that the cooling fans on the drive are functional and that there is adequate ventilation in the control cabinet. Inspect Mechanics

Technical Comparison Matrix: A.910 Behavior Across Generations Yaskawa Drive Generation Specific Code Meaning Common Underlying Culprit Primary Parameter Control Pre-Overload Warning Internal control cabinet temperatures exceeding 55°C. Pn52B (Overload Warning Level) Sigma 5 (SGDV) Pre-Overload Warning Mechanical binding or incorrect linear scale configuration. Pn52B (Overload Warning Level) Sigma 7 (SGD7S) Pre-Overload Warning Review the Pn52B parameter to ensure the warning

Ensure the motor and encoder cables are securely connected and not damaged.

: This usually indicates an internal hardware failure or a malfunction in the control circuit's self-diagnosis function, often caused by excessive electrical noise.

Errors in parameters related to torque limits or current levels can cause the drive to report an overload prematurely. Troubleshooting and Solutions