KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0137

KUKA Robot KRC0137 - MEMORY TEST ERROR DSE <DSE number 14>

This alarm indicates that a memory integrity check (DPRAM diagnostic) on the specified DSE (Digital Servo Extension) module has failed, detecting data corruption or hardware malfunction in the dual-port RAM memory. The DSE number 14 identifies which servo extension unit is experiencing the fault, and this typically prevents safe robot operation until resolved. This is a critical hardware diagnostic failure that requires immediate attention to prevent unpredictable robot behavior or safety hazards.

KUKA RobotSystemBasic

KRC0137

KUKA Robot KRC0137 - MEMORY TEST ERROR DSE <DSE number 14>

MEMORY TEST ERROR DSE <DSE number 14>

This alarm indicates that a memory integrity check (DPRAM diagnostic) on the specified DSE (Digital Servo Extension) module has failed, detecting data corruption or hardware malfunction in the dual-port RAM memory. The DSE number 14 identifies which servo extension unit is experiencing the fault, and this typically prevents safe robot operation until resolved. This is a critical hardware diagnostic failure that requires immediate attention to prevent unpredictable robot behavior or safety hazards.

Common Causes

  • Defective DPRAM chip on the DSE circuit board
  • Loose or corroded connector between KRC controller and DSE module
  • Electrical interference or noise affecting the DSE communication bus
  • Firmware corruption on the DSE module due to incomplete update or power loss during programming
  • Overheating or thermal stress on the DSE electronics causing memory degradation

Troubleshooting Steps

  1. 1Power cycle the entire robot system (KRC controller and all DSE modules) by switching off main power for 30 seconds, then restart and observe if the alarm recurs
  2. 2Inspect and reseat the connector cables between the KRC controller and DSE module 14, ensuring all contacts are clean and connections are secure
  3. 3Check the DSE module 14 for visible physical damage, burn marks, or corrosion on the circuit board and components
  4. 4Verify the DSE firmware version matches the KRC controller software version; perform a firmware update if available through the KUKA engineering interface
  5. 5Test communication integrity by running a DSE diagnostic test through the KRC Smartpad or teach pendant to confirm DPRAM functionality
  6. 6If the alarm persists, replace the defective DSE module 14 with a known good unit; if replaced module also fails, investigate potential power supply or electrical grounding issues on the servo extension bus

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