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KUKA Robot Controller
Servo/Axis · Basic
KUKA Robot KRC0255 - SENSOR LOCATION SEARCH FOR <axis>
This alarm indicates that during the sensor location search procedure for the specified axis, the proximity sensor's switching point was successfully detected. This is typically a diagnostic message that occurs when the KRC controller is performing axis calibration or reference point initialization and the sensor signal transitions as expected. The alarm confirms that the sensor response characteristic is within normal operating parameters during the search routine.
KRC0255
KUKA Robot KRC0255 - SENSOR LOCATION SEARCH FOR <axis>
SENSOR LOCATION SEARCH FOR <axis>
This alarm indicates that during the sensor location search procedure for the specified axis, the proximity sensor's switching point was successfully detected. This is typically a diagnostic message that occurs when the KRC controller is performing axis calibration or reference point initialization and the sensor signal transitions as expected. The alarm confirms that the sensor response characteristic is within normal operating parameters during the search routine.
Common Causes
- Normal sensor detection during axis homing or calibration sequence
- Sensor switching point detected at an unexpected position within the travel range
- Sensor sensitivity threshold requires adjustment or verification
- Mechanical obstruction causing premature sensor triggering during search
- Electrical noise or signal interference causing false sensor detection
Troubleshooting Steps
- 1Verify the axis is at the correct starting position before initiating sensor location search
- 2Check sensor mounting and alignment to ensure proper detection of the reference marker or cam
- 3Inspect the sensor cable and connector for damage, corrosion, or loose connections
- 4Use the KRC teach pendant to monitor real-time sensor signal status during the search procedure
- 5Verify sensor switching threshold settings in the axis configuration parameters match the mechanical design specifications
- 6If alarm persists, perform a manual sensor location search and document the exact position where switching occurs for comparison with expected values
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