What causes KUKA Robot alarm KRC0245?

Mechanical load on the axis causing creep or drift outside the $IN_STILL_MA standstill window. Brake holding force insufficient for the payload mass on a vertical axis. Encoder noise or resolver signal degradation causing false position deviation readings. Machine data positioning window $IN_POS_MA set too tight relative to actual settling behavior. External force or vibration applied to the robot disturbing the axis from the standstill threshold.

How do I fix KUKA Robot alarm KRC0245?

1. Check the current values of $IN_POS_MA and $IN_STILL_MA in the machine data using KUKA smartPAD 2. Manually move the affected axis and release it, then observe if it drifts beyond the tolerance window 3. Inspect the mechanical brake on the axis for wear and verify holding force is adequate for the load 4. Check encoder cable connections and perform signal integrity diagnostics from the KRC4 controller interface 5. Gradually increase the $IN_STILL_MA tolerance window by 10-20 percent increments until the alarm no longer occurs 6. If mechanical drift persists, perform brake maintenance or adjustment through the KUKA service protocol

KUKA Robot codes

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KUKA Robot Controller

Servo/Axis · Advanced

Alarm KRC0245

KUKA Robot KRC0245 - STOPPED <axis number>

The specified axis has moved outside the standstill detection window defined by the positioning and stillness tolerance parameters. This alarm indicates unwanted axis drift or movement that exceeds the machine data settling criteria for the axis.

KUKA RobotServo/AxisAdvanced

KRC0245

KUKA Robot KRC0245 - STOPPED <axis number>

STOPPED <axis number>

Common Causes

Mechanical load on the axis causing creep or drift outside the $IN_STILL_MA standstill window
Brake holding force insufficient for the payload mass on a vertical axis
Encoder noise or resolver signal degradation causing false position deviation readings
Machine data positioning window $IN_POS_MA set too tight relative to actual settling behavior
External force or vibration applied to the robot disturbing the axis from the standstill threshold

Troubleshooting Steps

1Check the current values of $IN_POS_MA and $IN_STILL_MA in the machine data using KUKA smartPAD
2Manually move the affected axis and release it, then observe if it drifts beyond the tolerance window
3Inspect the mechanical brake on the axis for wear and verify holding force is adequate for the load
4Check encoder cable connections and perform signal integrity diagnostics from the KRC4 controller interface
5Gradually increase the $IN_STILL_MA tolerance window by 10-20 percent increments until the alarm no longer occurs
6If mechanical drift persists, perform brake maintenance or adjustment through the KUKA service protocol

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