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KUKA Robot Controller
Servo/Axis · Intermediate
KUKA Robot KRC0051 - i2t MONITORING, CURRENT LIMIT OF THE MOTOR CABLE <string1> AFTER <string2> s EXCEEDED 95
The motor cable current limit has exceeded 95 percent of the maximum permissible threshold after the specified time duration, serving as a warning that the axis is approaching critical overload conditions. Corrective action must be taken immediately to reduce loading and prevent escalation to the 100 percent fault state.
KRC0051
KUKA Robot KRC0051 - i2t MONITORING, CURRENT LIMIT OF THE MOTOR CABLE <string1> AFTER <string2> s EXCEEDED 95
i2t MONITORING, CURRENT LIMIT OF THE MOTOR CABLE <string1> AFTER <string2> s EXCEEDED 95
The motor cable current limit has exceeded 95 percent of the maximum permissible threshold after the specified time duration, serving as a warning that the axis is approaching critical overload conditions. Corrective action must be taken immediately to reduce loading and prevent escalation to the 100 percent fault state.
Common Causes
- Payload approaching but not yet exceeding maximum axis rating
- Motion profiles with excessive acceleration ramps consuming higher current over extended periods
- Gradual mechanical degradation or bearing friction increasing resistance in the axis
- Ambient temperature elevation reducing cooling efficiency of motor components
- Repetitive high-load task sequences with insufficient rest intervals between operations
Troubleshooting Steps
- 1Monitor the real-time current consumption using the KUKA smartPAD diagnostics display and observe which axis is approaching limits
- 2Reduce the payload mass by removing unnecessary tools or workpiece mass from the end effector
- 3Adjust motion velocity and acceleration rates in the KRL program to lower peak current demands on the affected axis
- 4Verify the $CURR_MON[] threshold values for the specific axis in WorkVisual and confirm they align with motor cable specifications
- 5Implement longer dwell times or cycle breaks between high-load operations to allow motor thermal recovery
- 6Check motor and cable temperatures using infrared diagnostics and ensure cooling fans and ventilation are functioning properly
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