Yaskawa Error Code A910
In the world of industrial automation, Yaskawa drives (including the popular V1000, J1000, GA700, GA800, and A1000 series) are renowned for their reliability and precision. However, like any sophisticated electronic device, they occasionally encounter issues that bring production lines to a halt. One of the most common yet frequently misunderstood alarms is Yaskawa error code A910.
If you are staring at a drive display flashing A910, you are likely experiencing frustration and urgency to get your machinery back online. This article provides a deep dive into everything you need to know about the A910 fault—what it means, why it happens, and, most importantly, how to fix it permanently.
Since A910 is a warning, the drive will not automatically stop. However, ignoring it typically leads to: yaskawa error code a910
Recommendation: Address the cause of the overload as soon as possible to prevent a unplanned stoppage.
A: No. If the drive allows you to clear the fault and run, you risk catastrophic motor or drive damage. The current sensors are critical for vector control and overcurrent protection. Ignoring A910 can lead to IGBT failure and a much more expensive repair. In the world of industrial automation, Yaskawa drives
The drive uses one or three current sensors (depending on phase count). Over time, these sensors can drift due to thermal stress, electrical spikes, or simply age. When the sensor outputs a non-zero signal at zero current, the A910 alarm trips.
Once you’ve cleared the immediate alarm, implement these preventive measures. Recommendation: Address the cause of the overload as
| Preventive Action | Benefit | | :--- | :--- | | Install a Line Reactor | Reduces voltage sags from upstream equipment and mitigates harmonics. | | Use a Three-Phase Line Monitor | Shuts down equipment when voltage drops below 10% of nominal, preventing drive stress. | | Replace Aging Drives | If capacitors are >7 years old in a hot environment, consider proactive replacement. | | Install a DC Bus Hold-Up Kit | Yaskawa offers external capacitor modules that extend ride-through time from 50ms to several seconds. | | Upgrade Wiring | One gauge size larger reduces voltage drop significantly for long runs (>50 feet). |
In the high-stakes world of industrial automation, downtime is costly. When a Yaskawa drive—whether from the V1000, J1000, U1000, GA700, or A1000 series—halts production with Error Code A910, it signals a specific power-related fault. While this alarm can be alarming to operators, understanding its root causes is the first step toward rapid resolution.
Error A910 is officially defined by Yaskawa as Main Circuit Undervoltage. This alarm triggers when the DC bus voltage inside the drive drops below the specified threshold. For a 200V class drive, this typically occurs below approximately 190 VDC (or around 150 VDC for single-phase models). For a 400V class drive, the undervoltage threshold is roughly 380 VDC to 400 VDC, depending on the model and load conditions.
Unlike a fatal fault that requires a manual reset, A910 is often a temporary alarm. However, persistent occurrences indicate deeper electrical issues that can damage the drive’s capacitors and rectifier circuit over time.