) or restricted air circulation can lead to premature overload detection. Improve panel cooling or reduce the carrier frequency.
To isolate and clear the A.910 warning, follow this sequential diagnostic protocol:
: The most frequent cause is a physical obstruction or excessive load on the motor that exceeds its torque specifications.
While it is a warning ("A" designation), it demands immediate attention to prevent machine downtime. Below is a comprehensive guide to understanding, diagnosing, and resolving the Yaskawa A910 error. What is Yaskawa Error Code A910?
If the A910 moves to the new machine, the issue is with the motor or cable. yaskawa error code a910 link
Inspect the power and encoder cables for loose contacts or incorrect wiring. Excessive Load
The A.910 warning typically stems from mechanical stress or electrical configuration issues: Mechanical Overload
A910 Official Description: Overspeed (at Start) Severity: Medium to High (Prevents operation but typically indicates a configuration or hardware mismatch). Category: Speed Control / Feedback Loop
If the PLC goes into "Stop" mode or loses power, the drive will trigger A910. ) or restricted air circulation can lead to
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
If wiring and mechanics are confirmed to be operating within spec, the itself may be faulty.
Weeks later, the engineering team upgraded the network: dedicated plant VLANs, new shielded cable runs, and a firmware update for the switch. When they closed the ticket, they stamped it with A910 and a concise summary. Lin printed the final report and tucked it into a binder labeled INCIDENTS—like a captain stowing away a map.
Output Phase Loss (One or more output phases (U, V, W) to the motor are open/missing.) While it is a warning ("A" designation), it
The is an Overload Warning . It explicitly targets the Yaskawa Sigma servo drive series , including Sigma-3 , Sigma-5 , and Sigma-7 SERVOPACKs .
The is an overload warning that protects servo systems from catastrophic component failure by signaling that a motor is nearing its thermal or physical limits. Commonly appearing on popular series like the Sigma-5, Sigma-7, and Yaskawa Sigma-3 SERVOPACKs, this early-warning indicator flags that the system is operating dangerously close to an overload fault —specifically before triggering the hard faults A.710 or A.720.
Open your drive management software, such as Yaskawa SigmaWin+ , and read the current value of parameter . The default value typically allows the motor to reach 20% to 100% of the formal overload trip point before generating a warning. Adjust this value carefully to match your specific production profile rules. Step 4: Evaluate Thermal Conditions
[A.910 Warning Triggered] │ ▼ 1. Isolate the Mechanics ──► (Spin motor manually; check for binding) │ ▼ 2. Check Parameters ──────► (Verify Pn52B Overload Warning Level) │ ▼ 3. Inspect Hardware ──────► (Verify 55°C max panel temp & solid wiring) Step 1: Isolate the Mechanical Load