Press the key on the digital operator or cycle the drive’s power.
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
A damaged Ethernet cable, a loose RJ45 connector, or a frayed serial wire. yaskawa error code a910 link
Troubleshooting Yaskawa Error Code A910: Understanding Link Interruptions
Unlike a "Fault" which requires a manual reset, an like A910 often clears itself once the underlying cause is resolved (i.e., when the link is restored). However, if your drive is configured to "Fault on Communication Loss," you may need to: Restore the link. Press the key on the digital operator or
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
This occurs when the drive’s communication option card (such as a Modbus, EtherCAT, or PROFINET card) loses its connection with the master controller (PLC) or the wider network. Essentially, the drive is still powered on, but it has "lost the signal" from its commander. Common Causes of A910 Over time, vibration can sometimes cause these cards
In rare cases, the physical communication card seated in the drive may have shifted or failed. Step-by-Step Troubleshooting Guide 1. Inspect Physical Connections
High-voltage lines running too close to communication cables can cause electromagnetic interference, dropping the signal.
The Yaskawa A910 error is almost always a . By systematically checking your cabling, reducing electrical noise, and verifying your PLC status, you can resolve the "Link Interruption" and minimize downtime.