KUKA KSS00037 axis Configuration Error – Causes, Symptoms & How to Fix

Error Code Overview

• Error Code: KSS00037
• Category: axis / Motion Control / Configuration
• Severity: High
• System: Robot axes, KSP/KPP drives, encoders, KRC CPU
• Impact: axis motion disabled; potential mechanical damage if ignored

Quick Fix for KUKA KSS00037

If KUKA KSS00037 axis Configuration Error appears, try these immediate actions:

1. Stop all robot motion immediately
2. Verify axis parameters and machine data in SmartHMI
3. Check connected drives and encoder status
4. Restart the KRC controller and servo drives
5. Test robot motion at reduced speed after reset

Important: Temporary mismatches can sometimes be cleared by rebooting, but repeated KSS00037 alarms usually indicate deeper configuration or hardware issues.

What Is KUKA KSS00037?

KUKA KSS00037 indicates that the KRC controller has detected a mismatch between the configured robot axis parameters and the actual hardware detected in the system.

Th is fault commonly affects:

• Robot axes and servo drives (KSP/KPP)
• Encoder feedback devices
• RDC / resolver data modules
• KRC CPU and motion controller

In short:
The controller cannot verify that the connected axis hardware matches the expected robot configuration, so motion is blocked for safety.

Common Symptoms of KSS00037

When th is error occurs, operators may notice:

• Robot startup stops during initialization
• One or more axes remain disabled
• Jogging is unavailable
• Servo drives fail to enable
• axis mastering/reference data may appear lost

These symptoms indicate the controller cannot safely validate motion parameters.

Main Causes of KUKA KSS00037

1. Hardware ID or Drive Mismatch

If a drive, motor, or encoder has been replaced:

• The new component may not match stored hardware data
• Serial/identification mismatch may trigger configuration fault

Th is often happens after maintenance without reconfiguration.

2. MADA File Inconsistency

Machine Data (MADA) may become inconsistent if:

• Backup files were restored incorrectly
• Hard drive/SSD was replaced
• Software updates overwrite parameters

Mismatch between stored machine data and active project can trigger KSS00037.

3. Incorrect axis Mapping

axis assignments may be wrong if:

• A1–A6 motor cables are swapped
• Drive channels are assigned incorrectly
• Firmware updates alter mapping configuration

Improper mapping can prevent controller verification.

4. RDC / Resolver Data Corruption

The RDC module stores important axis and mastering data.

If corrupted:

• axis transformation values may be lost
• Hardware identification may fail
• Mastering data may reset unexpectedly

5. Firmware Compatibility Issues

Version mismatch between:

• KSS software
• Servo firmware
• Drive firmware

can cause configuration validation errors during startup.

How to Troubleshoot KUKA KSS00037

Step 1 – Identify the Affected axis

Use SmartHMI diagnostics to determine:

• Which axis is affected
• Whether one or multiple axes are involved

Step 2 – Check Drive and Encoder Connections

Inspect:

• Encoder cables for looseness/damage
• Drive communication cables
• Connector seating and terminal integrity

Step 3 – Verify axis Parameters

Compare physical hardware with controller settings:

• axis type
• Drive assignments
• Encoder parameters
• Machine data files

Reload configuration if mismatch is found.

Step 4 – Inspect RDC / Resolver Module

Check for:

• Lost mastering data
• RDC communication faults
• Memory corruption symptoms

Replace RDC if data cannot be restored.

Step 5 – Confirm Firmware Compatibility

Verify:

• KSS software version
• Drive firmware revision
• Encoder/servo compatibility

Update or synchronize firmware if needed.

Step 6 – Reset and Retest

After corrections:

1. Clear KSS00037 in SmartHMI
2. Restart the controller
3. Jog each axis slowly
4. Confirm stable motion before production restart

Recommended Parts

Pro Diagnostic Tip

When KSS00037 appears after maintenance or parts replacement, always verify:

• Hardware serial numbers
• MADA/WorkVisual project consistency
• Drive channel assignments

Field experience shows many KSS00037 alarms occur immediately after improper drive replacement or incomplete backup restoration.

How to Fix KUKA KSS00037

Dependingon the cause, repair may require:

• Reloading correct machine data files
• Reconfiguring axis parameters
• Replacing faulty encoder or drive module
• Synchronizing firmware versions
• Replacing damaged RDC module

How to Prevent axis Configuration Errors

To reduce recurrence:

• Keep backups of all KRC configuration files
• Verify parameters after firmware or hardware changes
• Label all axis/drive connections clearly
• Perform controlled startup after maintenance
• Store spare drives and encoders onsite

Related KUKA Motion Errors

• KUKA KSS00041 Acceleration Limit Error– Triggered when the robot exceeds its configured acceleration limits during motion, causing instability.
• KUKA KSS00042 Velocity Limit Error– Occurs when the robot exceeds its velocity limits, potentially leading to overspeed conditions.
• KUKA KSS00405 axis Control Error– axis control failure due to issues in feedback or communication, preventing proper movement.
• KUKA KSS00007 axis Homing Error– Issues during the homing process, where the robot fails to establish its reference position.
• KUKA KSS00008 Mastering Required Error– The robot needs a new mastering procedure due to discrepancies in its position or alignment.

These alarms are commonly related to axis feedback, configuration, and motion parameter issues.

FAQ

Can the robot operate with KSS00037 error?

No. Axes are disabled until configuration is corrected and verified.

Why does KSS00037 occur?

• axis parameters mismatch with KRC configuration
• Faulty encoders or drives
• Firmware or KSS version mismatch
• Physical changes not reflected in configuration

How can I fix KUKA KSS00037 quickly?

• Verify axis parameters and configuration
• Inspect drives and encoders
• Replace faulty modules
• Reset error and test axis movement

Can repeated configuration errors damage the robot?

Yes. Misconfigured axes can cause mechanical stress or collisions.