Yaskawa Error Code A910 Exclusive [updated] 〈Simple〉
Most technicians reflash the drive. That rarely works for A910. The issue is often the . The JVOP-180 operators have a habit of losing their bootloader handshake string after repeated power cycles, especially if the drive is powered off via a main disconnect rather than a soft shutdown.
Try moving the axis manually. Is it unusually stiff?
If the conditions causing A.910 are ignored and operation continues, the drive will eventually shut down with one of the above errors to protect the motor and internal circuitry. Common Causes Excessive Load
to perform autotuning or manually adjust gains to stabilize the system.
Have the following ready for Yaskawa support: yaskawa error code a910 exclusive
Monitor the . If it consistently runs near or at 100%, the motor is undersized for the application, or your process has changed.
If the alarm persists, determine if external hardware is causing the issue: Turn off the main and control power.
What does this servo operate (e.g., conveyor, packaging axis, CNC mill)?
Start by removing the power to the drive and disengaging the motor from the mechanical load. Most technicians reflash the drive
Read parameter (Overload Warning Level). This is typically factory-configured to
Separate control and communication wiring from high-voltage motor output cables by at least 30 cm (12 inches).
Use a multimeter to measure the phase resistance across the U, V, and W lines, checking for any severe imbalance. Step 3: Monitor Running Torque via Software
The drive relies on preset thresholds to trigger warnings before a trip occurs. The JVOP-180 operators have a habit of losing
Tell you which parameters to change for . Give you a checklist for inspecting mechanical friction . Let me know what you'd like to narrow down . Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd
Does the A.910 warning appear or during a specific motion in the cycle?
Use Yaskawa's software to look at the diagnostic data. The software will often provide deeper insights into which specific parameters are creating the conflict. Go to Monitor -> Alarm -> Alarm Details . 2. Check for Conflicting Parameters
Unlike a system fault (which instantly drops the main power circuit and halts axis coordination), the warning is treated as a minor event. The drive's internal microcontrollers flash or display A.910 on the digital operator to signify that the internal motor mathematical thermal model calculates that heat or current absorption has exceeded safe operating metrics. Drive State Consequence if Ignored A.910 Overload Warning System Active (Flashing LED) Escalates immediately to A.710 or A.720 A.710 Instantaneous Overload Hard Trip (Axis Disables) High risk of mechanical shear or gear damage A.720 Continuous Overload Hard Trip (Axis Disables) Thermal degradation of motor winding insulation Core Root Causes and Quick Fixes
When diagnosing an active A.910 code, proceed systematically from external mechanics down to software tuning: Area to Inspect Diagnostic Action Recommended Solution Mechanical System