Ramping up to top speed too quickly demands massive spikes in current.
Yaskawa A910 – Output Phase Loss
Elias felt a knot tighten in his stomach. He didn't even need to pull out his phone to check the manual; he knew this one. It was the bogeyman of Yaskawa error codes. The white whale.
The A910 warning is part of a cluster of related errors concerning the motor's load condition. Understanding them can help you see the full picture:
: Disconnect the motor from the load and check if the machine moves freely. If the warning disappears when the motor is uncoupled, the issue is likely mechanical friction or a jam. yaskawa error code a910
Operating the motor at high speeds with zero dwell (rest) time prevents the motor from shedding heat.
In some cases, the problem isn't the load at all, but a "whisper" that didn't make it through. Incorrect wiring faulty contact
Faulty contact in the motor or encoder cables can cause the drive to "misread" the torque requirements.
Shut down power to the SERVOPACK and safely lock out the machine. Ramping up to top speed too quickly demands
Key parameters to check include:
When the drive is initially powered on, a "soft-charge" resistor limits inrush current to charge the DC bus capacitors. Once charged, a relay or thyristor bypasses this resistor. If the bypass fails:
Bad connections between the drive and the motor alter resistance and phase balance.
He hit the button. Click. The drive faulted out immediately. reappeared instantly. It was the bogeyman of Yaskawa error codes
He went back to the laptop. He disabled the servo lock (Servo Off) and switched the drive to JOG mode. "I'm going to try to jog it forward, one millimeter. Just a tick. Stand clear."
Set this parameter to to reset the accumulated operating time counter back to zero.
: If the load is normal but the warning is premature, verify the setting of Pn52B (Overload Warning Level).
