What causes KUKA Robot alarm KRC0138?

DSE module was removed or became unseated from the MFC during maintenance or power cycling. DSE slot connector is loose or has poor electrical contact due to vibration or thermal cycling. Incorrect DSE allocation in WorkVisual configuration does not match actual hardware installed. DSE firmware update or replacement was performed but hardware was not fully reseated. MFC backplane connector pin damage or contamination preventing proper DSE detection signal.

How do I fix KUKA Robot alarm KRC0138?

1. Power off the KRC4 controller completely and verify the emergency stop is engaged before any maintenance 2. Visually inspect the DSE slot on the MFC to confirm the DSE module is physically present and fully inserted until the retention clips are secure 3. Power on the system and check the MFC status LEDs to confirm the DSE is recognized by the controller 4. If DSE is present but alarm persists, power down and reseat the DSE by removing and reinserting it firmly into the slot 5. Open WorkVisual and verify the axis allocation configuration matches the physical DSE slot where the module is installed 6. If problem continues after reseating, replace the DSE module and reconfigure its allocation in WorkVisual, then perform a controlled restart

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC0138

KUKA Robot KRC0138 - DSE <DSE number 14> NOT AVAILABLE

A Digital Servo Extension (DSE) module is not physically inserted into the MFC (Multi-Functional Component) controller, yet the KRC4 system has allocated robot axes to this missing DSE. The system cannot communicate with the DSE hardware, preventing proper axis control and initialization.

KUKA RobotSystemBasic

KRC0138

KUKA Robot KRC0138 - DSE <DSE number 14> NOT AVAILABLE

DSE <DSE number 14> NOT AVAILABLE

Common Causes

DSE module was removed or became unseated from the MFC during maintenance or power cycling
DSE slot connector is loose or has poor electrical contact due to vibration or thermal cycling
Incorrect DSE allocation in WorkVisual configuration does not match actual hardware installed
DSE firmware update or replacement was performed but hardware was not fully reseated
MFC backplane connector pin damage or contamination preventing proper DSE detection signal

Troubleshooting Steps

1Power off the KRC4 controller completely and verify the emergency stop is engaged before any maintenance
2Visually inspect the DSE slot on the MFC to confirm the DSE module is physically present and fully inserted until the retention clips are secure
3Power on the system and check the MFC status LEDs to confirm the DSE is recognized by the controller
4If DSE is present but alarm persists, power down and reseat the DSE by removing and reinserting it firmly into the slot
5Open WorkVisual and verify the axis allocation configuration matches the physical DSE slot where the module is installed
6If problem continues after reseating, replace the DSE module and reconfigure its allocation in WorkVisual, then perform a controlled restart

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