KUKA Robot codes
KUKA RobotServo/AxisBasic

KRC0372

KUKA Robot KRC0372 - Ackn. Ixt servo drive exceed value of

Ackn. Ixt servo drive exceed value of

A servo drive has exceeded the configured Ixt (integrated current squared over time) monitoring warning threshold, indicating that thermal stress on the motor or drive is approaching critical levels. The warning value is expressed as a percentage of the maximum allowed value, and operation must cease before the drive reaches 100 to prevent deactivation and potential component damage.

Common Causes

  • Sustained high-load movements that keep motor current elevated above normal baseline values
  • Ixt warning threshold set too low in the servo drive parameters relative to the actual application duty cycle
  • Insufficient rest periods between heavy load cycles causing cumulative thermal buildup in motor windings
  • Servo drive controller malfunction or sensor fault producing falsely elevated current measurements
  • Environmental factors such as elevated ambient temperature reducing the thermal dissipation capacity of the motor

Troubleshooting Steps

  1. 1Reduce or halt current robot motion immediately and allow the servo drive thermal status to stabilize and recover
  2. 2Monitor the servo drive Ixt percentage value in real-time using KRC4 diagnostics to observe cooling rate and thermal behavior
  3. 3Review the application motion profile and introduce programmed rest periods or reduced speed intervals between heavy load operations
  4. 4Access the servo drive parameters via WorkVisual or the SafeOperation menu and verify the Ixt warning threshold setting against motor thermal ratings
  5. 5Verify ambient temperature conditions and ensure adequate drive cabinet ventilation and cooling capacity for the application
  6. 6If Ixt remains elevated after motion profile optimization, contact KUKA service to inspect servo drive thermal sensors and control logic

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