If the drive's communication timeout (Watchdog) is set too low, minor network jitters can trigger the alarm.
Internal component degradation in the driven mechanism adds friction, requiring the motor to draw extra current just to complete standard moves.
Even if the card is seated correctly, dust, humidity, or corrosive gases (like sulfur in paper mills) can oxidize the gold-plated pins on the option card or the socket on the drive control board.
By methodically following the steps above—checking sub-errors, cleaning contacts, reseating cards, and verifying parameters like H5-01 —you can restore the "link" and return your automation system to full operation. Remember: A910 is an alarm, not a death sentence. Treat it as a maintenance prompt, and your Yaskawa drive will continue to perform for years.
Inspect the machinery for any physical obstructions, mechanical wear, or binding that could be increasing the motor's workload.
: High temperatures inside the SERVOPACK panel (exceeding 55°C) can reduce performance and trigger overload warnings.
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
The Yaskawa is a common overload warning primarily associated with Sigma-series servo drives, such as the Sigma-7 and Sigma-3 . Unlike a critical "fault" that stops the motor immediately, this code acts as an alarm or minor fault , signaling that the system is approaching its operational limits.
Check your PLC. Is it in "Run" mode? Are there any errors on the PLC side indicating a network-wide failure? If the entire network is down, the A910 is just a symptom of a larger issue. 3. Check for Electrical Interference
For official Yaskawa documentation, you can search for your specific model's manual on the Yaskawa Technical Document Library so I can find the exact manual for you? 6.3 Drive Alarms, Faults, and Errors
Press the key on the digital operator or cycle the drive’s power.
Leave the motor uncoupled from the load and power up the drive system.
When an registers on the digital operator or host controller, it points to one of five primary system discrepancies:
Check the communication settings in the drive (typically in the or H5-XX parameter groups depending on your specific model, like the GA700 or A1000).