Yaskawa Error Code A910 Direct

The Yaskawa error code A.910 is an Overload Warning. It is a proactive alert indicating that the servomotor is operating at a load level that will soon trigger a hard fault (A.710 or A.720) if the condition persists. 🛠️ Understanding A.910: Overload Warning

Unlike a "Fault" (which immediately stops the motor), a "Warning" allows the motor to continue running while notifying the operator of an impending issue. Primary Causes

Mechanical Binding: Excessive friction or a physical obstruction in the machinery.

Incorrect Sizing: The motor’s rated torque is too low for the current load inertia or application demands.

Rapid Acceleration: Aggressive acceleration/deceleration ramps are drawing excessive current.

Wiring Issues: Poor connections between the SERVOPACK and the motor. 🔍 Troubleshooting Steps

If your display shows A.910, follow these steps to prevent a full system shutdown: 1. Check the Mechanical Load

Inspect the hardware: Rotate the motor shaft manually (if safe) to check for physical resistance.

Lubrication: Ensure all bearings, gears, and slides are properly lubricated to reduce friction. 2. Verify Parameter Settings

Check Pn520: This parameter often controls the position error pulse overflow; if set too tight, it can mimic overload behavior.

Acceleration/Deceleration: Increase the "S-curve" or ramp times to reduce the instantaneous torque required from the motor. 3. Monitor Real-Time Data Use the SigmaWin+ software to monitor the Torque Reference.

If the torque reference is consistently above 100% of the motor's rated capacity, the load must be reduced. 4. Hardware Inspection

Cables: Ensure the motor and encoder cables are not damaged or experiencing interference.

Brakes: Verify that the motor's mechanical brake is fully releasing when the servo is turned ON. ⚠️ Impending Faults (The "Next Step")

If A.910 is ignored, the drive will eventually transition into one of these hard faults: A.710: Instantaneous Overload (High Load). A.720: Continuous Overload (Low Load). To help you resolve this faster, could you tell me:

What series of Yaskawa drive are you using (e.g., Sigma-5, Sigma-7, GA700)?

Is the error happening during a specific movement or while the motor is holding position?

Have there been any recent mechanical changes to the machine? Using Stall Prevention to Suppress Overloads - Yaskawa yaskawa error code a910

Many Yaskawa drives have a hidden or semi-hidden routine to auto-calibrate the current sensors. This is often the only fix without hardware repair.

For GA800 and GA700:

For A1000 and V1000:

In older drives, degraded power supply capacitors can introduce noise or incorrect biasing voltages into the current detection circuit. This leads to a false current offset reading.

Once you’ve resolved the A910 fault, implement these best practices to prevent recurrence:

If you have access to the control board, you can use a multimeter (mV DC range) to measure the output of the current sensors directly on the PCB test points (refer to the service manual). Typical healthy offset is less than ±5mV. A910 faults often appear at offsets exceeding ±20-50mV.

Since A910 is a warning, the drive will not automatically stop. However, ignoring it typically leads to:

Recommendation: Address the cause of the overload as soon as possible to prevent a unplanned stoppage.

Yaskawa error code A.910 is primarily a rather than a hard fault, indicating an Overload Warning in Yaskawa SERVOPACKs. LK Automation Limited

It serves as a "pre-alarm" to notify you that the motor is approaching its limit and is about to trigger a critical overload alarm, such as (instantaneous maximum load) or (continuous maximum load). LK Automation Limited Key Details & Troubleshooting What it means

: The drive has detected that the motor is operating near its rated capacity for a sustained period. If the workload isn't reduced, the system will trip a full alarm and shut down. Common Causes Mechanical jams or increased friction in the machine.

Large load inertia combined with rapid acceleration or deceleration rates. Operating the motor beyond its rated output for too long. Recommended Actions Reduce the Load

: Lighten the mechanical workload or slow down the cycle time. Check Mechanics

: Inspect for binding, lubrication issues, or physical obstructions in the drivetrain. Adjust Parameters

: If the warning is triggering too early despite normal operation, review the overload warning level settings (e.g., Pn52b in some models) to ensure they match your application requirements. LK Automation Limited Other Variations If you are seeing

on a Yaskawa robot controller (like the FS100), it indicates a

related to the control board, which usually requires checking internal connections or replacing the CPU unit. Yaskawa Knowledge Center specific SERVOPACK model

you are using so I can provide the exact parameter list for that drive?

A very specific question!

The Yaskawa error code A910 is a fault code that appears on Yaskawa servo drives, particularly on the Σ5 (Sigma 5) series. After conducting research, I found that:

Error Code A910: Servo Motor Overheating Incorrect Parameter Settings:

The A910 error code indicates that the servo motor has overheated. This can occur due to various reasons such as:

Symptoms:

Troubleshooting steps:

Recommendations:

Rating:

Based on the information provided, I'd rate this error code review as follows:

Yaskawa error code A.910 Overload Warning commonly found in the Sigma-5 and Sigma-7 servo drive series. It acts as a preemptive alert, indicating that the system is approaching a full overload alarm (A.710 or A.720), which would shut down the drive. Core Meaning

This code signals that the motor is operating at a load or torque level that exceeds its continuous rating for a significant period. If ignored, the drive will eventually trip to protect the hardware. Yaskawa America Primary Causes and Solutions Mechanical Overload:

The most common cause is excessive physical load or a mechanical jam.

Inspect the machinery for friction, binding, or unexpected resistance. Incorrect Parameter Settings: The "Overload Warning Level" (Parameter ) might be set too low for your specific application. Verify and adjust Pn52B to a suitable level as per the Yaskawa Sigma-7 Product Manual Wiring Issues:

Poor contact or incorrect wiring between the servomotor and the encoder can trigger false or early warnings.

Ensure all motor and encoder cables are securely connected and correctly wired. Capacity Mismatch:

The motor may be undersized for the required operation/duty cycle.

Reconsider the operating conditions or increase the motor/drive capacity. Hardware Failure: In rare cases, internal failure of the itself can cause this error.

If mechanical and wiring checks pass, the SERVOPACK may need replacement. Summary Table for Quick Reference Alarm Name Overload Warning Related Alarms A.710 (Instantaneous Overload), A.720 (Continuous Overload) Critical Parameter Pn52B (Overload Warning Level) Typical Recovery

Inspect mechanics, verify wiring, or cycle power if intermittent

If the error persists after checking these areas, would you like to troubleshoot a specific Yaskawa drive model or look into parameter adjustment steps AI responses may include mistakes. Learn more Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd

The Yaskawa error code A.910 is an Overload Warning that indicates a servo drive is nearing its maximum capacity but has not yet reached a critical shutdown state. It serves as a precursor to more severe overload alarms, specifically A.710 (instantaneous maximum load) or A.720 (continuous maximum load). What Does A.910 Mean?

Unlike a "fault" that immediately stops the motor, A.910 is classified as a warning. It triggers when the drive detects that the motor is operating for an extended period under a torque that significantly exceeds its rated characteristics. Ignoring this warning typically leads to a full system halt once the overload threshold is surpassed. Common Causes of A.910

Several mechanical and electrical factors can trigger an overload warning:

Mechanical Resistance: Jammed machinery, worn bearings, or excessive friction in the mechanical system. Acceleration/Deceleration Issues:

Operating Conditions: The motor is being asked to accelerate too quickly or handle a load beyond its rated capacity.

Wiring Issues: Incorrect or faulty contact in the servomotor or encoder wiring.

Parameter Settings: The overload warning level (parameter Pn52B) may be set too low for the intended application.

Ambient Temperature: High temperatures inside the SERVOPACK panel (exceeding ) can reduce performance and trigger warnings. Troubleshooting & Solutions To resolve an A.910 warning, follow these diagnostic steps:

Check Mechanical Load: Inspect the machine for physical obstructions or increased friction. Ensure the load hasn't changed beyond the motor's specifications.

Verify Wiring: Confirm that all motor and encoder cables are securely connected and free from damage.

Monitor Torque: Use monitoring tools like SigmaWin+ to check the torque reference waveform. If the resting torque is consistently over 90%, the motor may be undersized.

Adjust Parameters: If the mechanics are sound, consider adjusting the gain or increasing the overload warning level in parameter Pn52B to better suit your operation.

Cooling: Ensure the control panel is well-ventilated and that any internal SERVOPACK fans are functioning correctly.

If the warning persists after these checks, the SERVOPACK itself may be faulty and require repair or replacement.

com/a-910-fault-in-yaskawa-sigma-7-servo-drive/">Yaskawa Sigma-7 or Sigma-5 drive? Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd

In Yaskawa systems, the code typically indicates an Overload Warning

. Depending on whether you are using a Servo Drive or a Robot Controller, the specific implications and fixes vary. 1. Yaskawa Servo Drives (Sigma Series) For Yaskawa servo drives (like Sigma-5 or Sigma-7),

is a warning that the motor is operating near its thermal limit. It is a "pre-alarm" that occurs before the drive trips on a hard overload fault (like A.710 or A.720).

The servomotor has been operating at a torque level exceeding its rating for a sustained period. Common Causes: High Load:

The motor is pushing or pulling more weight than it is rated for. High Ambient Temp: The surrounding environment is hotter than 40°C ( Mechanical Bind:

There is friction or a jam in the mechanical system the motor is driving. Wiring/Encoder Issues:

A faulty encoder or internal circuit can sometimes trigger false thermal readings. Recommended Actions: Reduce Load: Decrease the cycle rate or the weight the motor is moving. Check Mechanics:

Ensure there are no physical obstructions or worn-out bearings causing extra friction.

Ensure the drive's cooling fan is working and the cabinet has proper ventilation. MachMotion 2. Yaskawa Motoman Robots (DX100, FS100) On robot controllers, the code is often categorized as a related to specific communication or internal board issues. Yaskawa Knowledge Center DX100 / FS100 Controllers: Typically indicates a CPU Error (YCP01 or CPU-201R) Common Causes: Faulty internal control board. Loose connection between the CPU board and the backplane. Corrupted system software or CMOS data. Recommended Actions: Power Cycle:

Turn the controller off, wait 30 seconds, and turn it back on. Reseat Boards: With power off, carefully reseat the CPU board in its slot. Technical Support:

If the error persists, the CPU board may need repair or replacement through the Yaskawa Motoman Support Center Yaskawa Knowledge Center

For further assistance, you can find official documentation and manuals on the Yaskawa Technical Document Library Are you seeing this code on a servo drive display robot teach pendant Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd