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Yaskawa Alarm Codes Explained: Complete Guide & Troubleshooting (2026)
Understand Yaskawa robot alarm codes, identify root causes, and find fast solutions for DX200, YRC1000, and more.
What Are Yaskawa Alarm Codes?
Yaskawa alarm codes are diagnostic signals generated by the robot controller to indicate faults in the system. These alarms can originate from hardware failures, servo issues, IO communication problems, or program errors.
Different controllers such as DX200 and YRC1000 may display variations of alarm codes, often including sub-codes that provide more detailed fault information. Understanding both the alarm code and its context is critical for accurate troubleshooting.
Controller Errors
System-level faults related to CPU boards, internal communication, or controller hardware.
Servo & Drive Alarms
Includes overcurrent, overload, encoder failure, and motor-related issues.
IO & Communication Errors
Signal loss, wiring issues, fieldbus errors, and external device communication faults.
Safety Circuit Alarms
Emergency stop triggers, safety relay faults, or open safety circuits.
Program & Logic Errors
Errors caused by incorrect programming, variable issues, or execution faults.
Popular Yaskawa Alarm Codes
- Alarm 0010 – CPU Board Error
- Alarm 0020 – Communication Error
- Alarm 4100 – Power Supply Issue
- Alarm 4768 – IO Signal Fault
How to Diagnose Yaskawa Alarms
- Check the alarm code and sub-code
- Review alarm history for patterns
- Identify the system category
- Inspect wiring, power supply, and hardware
- Repair or replace faulty components
Fix Yaskawa Alarms with Tested Spare Parts
We supply high-quality industrial robot spare parts including servo motors, drives, teach pendants, cables, and IO boards.
Get a Quote in 24 HoursFrequently Asked Questions
What do Yaskawa alarm codes mean?
They indicate faults in robot systems such as servo drives, IO, or controller hardware.
How do I reset a Yaskawa alarm?
Minor alarms can usually be reset from the teach pendant, while major alarms require troubleshooting.
What is the most common Yaskawa alarm?
Servo-related alarms such as overload and encoder errors are among the most common.
Are alarm codes different between controllers?
Yes, DX200 and YRC1000 may use slightly different structures and sub-codes.
Explore the Full Guide: Industrial Robot Knowledge Hub → Industrial Robot Fault Codes Library
Explore the complete guide for troubleshooting, repair strategies, and component replacement across industrial robot systems.
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