KEB AC Variable Frequency Drive Models
Select a KEB AC Variable Frequency Drive model to view its fault codes.
Step 1: Select Drive Type
Loading drive types...
Step 2: Select Manufacturer
Search Fault Codes
About Drive Fault Codes
Both AC Variable Frequency Drives (VFDs) and DC Drives display fault codes when they encounter operational issues. These codes help technicians diagnose and resolve problems quickly. This tool provides fault codes, descriptions, causes, and solutions for various drive manufacturers and models.
If you can't find your specific drive model or the fault code you're experiencing, please refer to the manufacturer's documentation or contact technical support.
Understanding Drive Fault Codes
What are Drive Fault Codes?
Drive fault codes are diagnostic messages displayed by AC and DC drives to indicate specific errors or malfunctions. These codes are essential for troubleshooting and maintaining industrial motor control systems. Each manufacturer uses unique code formats, but they generally point to similar issues like overvoltage, undervoltage, overcurrent, overheating, or communication failures.
Common Drive Types
AC Variable Frequency Drives (VFDs)
VFDs control AC motors by adjusting frequency and voltage to regulate motor speed and torque. They are widely used in applications requiring variable speed control with energy efficiency.
- Control both speed and torque
- Energy-efficient operation
- Smooth acceleration/deceleration
- Regenerative braking capabilities
DC Drives
DC drives control DC motors by adjusting the armature voltage and sometimes the field current. They excel in applications requiring high starting torque and precise speed control.
- High starting torque
- Simple control architecture
- Wide speed range control
- Quick response to command changes
Common Drive Fault Categories
Power-Related Faults
- Input phase loss
- Overvoltage during acceleration/deceleration
- Undervoltage conditions
- DC bus voltage issues
Thermal Faults
- Drive overheating
- Motor overtemperature
- Heatsink thermal issues
- Cooling system failures
Communication Faults
- Fieldbus communication errors
- Serial communication timeout
- Network connection issues
- Protocol compatibility problems
Motor/Load Faults
- Motor overload
- Output phase loss
- Overcurrent during acceleration
- Ground/earth faults
Troubleshooting Best Practices
When troubleshooting drive fault codes, always follow these best practices:
- Document the exact fault code and conditions when it occurred
- Check for simple issues first (loose connections, overloaded motor)
- Verify input power quality and stability
- Inspect the motor and load for mechanical issues
- Examine environmental conditions (temperature, humidity, dust)
- Consult manufacturer documentation for specific guidance
Popular Drive Manufacturers
Our database includes fault codes from leading drive manufacturers including:
- ABB
- Siemens
- Allen Bradley / Rockwell Automation
- Schneider Electric
- Danfoss
- Yaskawa
- Mitsubishi Electric
- Eaton
- Emerson
- Fuji Electric
For additional resources on drive maintenance and troubleshooting, check out our Drive Maintenance Guide and Motor Sizing Calculator.