Ensure all connections at the terminals are tight. Check the encoder cable for any signs of damage or interference. Poor encoder signals can cause the drive to "hunt" for position, increasing the current draw and triggering an overload. 3. Adjust Operating Conditions
The underlying causes behind the A910 warning generally fall into one of four distinct categories: 1. Mechanical Strain and Obstructions
Power down the main system and wait for the charge LEDs to extinguish fully.
: The torque required by the application is consistently exceeding the motor's rated capacity. High Ambient Temperature : If the environment around the motor or drive exceeds yaskawa error code a910 exclusive
Dust, moisture, and conductive particles can create microscopic short circuits on the control board, leading to processing errors. Clean the drive environment regularly.
for accumulated load ratio) to verify the actual percentage of the motor's capacity being used. If it is consistently near or above 100%, the application may require a larger motor or a change in duty cycle. Verify Environment
Improperly crimped connections, broken shielding, or deteriorated power/encoder cables create erratic contact resistance. If the SERVOPACK cannot read encoder positioning or phases accurately, it over-compensates by pushing extra current into the motor windings. 4. Parametric Mismatch (Pn52B Misconfiguration) Ensure all connections at the terminals are tight
Verify that parameters such as Pn520 (Position Error Pulse Overflow) or others related to motor current are set correctly for your specific application.
: Ensure that the cooling fans on the drive are functional and that there is adequate ventilation in the control cabinet. Inspect Mechanics
If the A910 code continuously reappears after cycling power, replacing option cards, and isolating noise, the internal control board may have suffered physical degradation. In this scenario, contact an authorized Yaskawa service center or your local distributor for a board-level diagnostic or replacement. : The torque required by the application is
The overload warning level (often parameter Pn52B ) may be set too low for the application. Troubleshooting & Corrective Actions Using Stall Prevention to Suppress Overloads - Yaskawa
Several factors can trigger the A910 error code. Some of the most common causes include:
Jammed linear guide rails, unlubricated ball screws, mismatched gearbox ratios, or structural crashes force the motor to draw peak torque indefinitely.
Complete Guide to Troubleshooting the Yaskawa Error Code A910 (Overload Warning)
Tighten loose terminals and replace any cables showing signs of physical wear, cracking, or oil intrusion.