Check parameter or U1-04 (Output Voltage) .
Faulty contacts or incorrect wiring between the SERVOPACK, servomotor, or encoder can trigger this warning. yaskawa error code a910 link
In less than 5% of cases, the drive’s main control board is defective. The socket for the option card may have cracked solder joints or a dead communication controller. Check parameter or U1-04 (Output Voltage)
*This document is for reference only. Always consult the specific Technical Manual for your Yaskawa drive model (e.g., A1000, V1000, GA700 The socket for the option card may have
If you are certain you are working with a Yaskawa drive, you may be looking for one of these similar-sounding codes: Ad0 (Position Error Pulse Overflow)
If you want, I can produce a short printable troubleshooting checklist tailored to a specific Yaskawa model and network type (e.g., MECHATROLINK-II, EtherCAT, or RS-485).
If ignored, the warning typically escalates to a full "Overload" alarm (A.710 for high load or A.720 for low load), which will stop motor operation. Common Causes & Troubleshooting