KUKA KSS01310 Power Supply Module Error – Causes, Symptoms & How to Fix

Error Code Overview

• Error Code: KSS01310
• Category: Power Supply / Cabinet Hardware
• Severity: Critical
• System: KRC4 Power Supply Module (KPP / KSP System)
• Impact: Drives cannot enable, robot cannot start, system power instability

Quick Fix for KUKA KSS01310

If KUKA KSS01310 Power Supply Module Error appears, take these immediate actions:

1. Power off the KRC4 cabinet completely
2. Verify incoming mains voltage and phase balance
3. Inspect KPP power module connections
4. Check DC bus voltage in diagnostics
5. Confirm cabinet fans and cooling system are operating normally

Important: If the issue is caused by temporary voltage fluctuation, a cold restart may temporarily restore operation.

What Does KUKA KSS01310 Mean?

KUKA KSS01310 indicates that the robot’s power supply module—typically the KUKA Power Pack (KPP)—is not operating correctly or cannot maintain stable DC bus voltage.

The KPP is responsible for:

• Converting AC mains input into DC bus voltage
• Supplying power to all connected KSP servo drives
• Managing regenerative braking energy in the drive system

In simple terms:

The controller has detected that the robot’s primary drive power source is unstable or unavailable, preventing safe drive activation.

Common Symptoms of KSS01310

When th is fault occurs, operators may notice:

• Drives cannot enable
• SmartHMI displays KSS01310
• Multiple drive alarms appear simultaneously
• No DC bus voltage reading in diagnostics
• Power module fans stop or run abnormally
• Cabinet power fluctuates during startup

These symptoms often indicate a failure in the KPP or upstream cabinet power supply.

Main Causes of KUKA KSS01310

1. Incoming Power Supply Issues

External electrical problems may prevent proper KPP operation:

• Voltage drop
• Phase imbalance
• Missing input phase
• Loose mains terminals
• Blown fuse / breaker

2. KPP Module Failure

The KUKA Power Pack itself may fail due to:

• Internal capacitor degradation
• Rectifier damage
• Power transistor failure
• PCB/electronics malfunction

Persistent KSS01310 often points to KPP hardware failure.

3. Cooling / Thermal Shutdown

The KPP may fault if overheating occurs:

• Blocked airflow
• Dust buildup
• Failed cooling fan
• High cabinet ambient temperature

4. DC Bus Instability / Overload

DC bus issues may trigger power supply alarms:

• Short circuit in drive system
• Overloaded servo drives
• Faulty KSP pulling down bus
• Sudden regenerative overload

5. Communication / Parameter Fault

Software/configuration mismatches may cause startup failure:

• Firmware mismatch between KRC and KPP
• Drive bus communication fault
• Corrupted parameters

How to Troubleshoot KUKA KSS01310

Step 1 – Verify Incoming Power

Measure:

• Input voltage
• Phase-to-phase balance
• Frequency stability

Check:

• Breakers
• Main contactors
• Fuses

Step 2 – Inspect KPP Module

Check:

• LED indicators
• Fan operation
• Burn marks / odor
• Abnormal noise

Step 3 – Check DC Bus Voltage

Use:

SmartHMI → Drive Diagnostics → DC Bus

Confirm:

• Voltage present
• Voltage stable
• No under/overvoltage spikes

Step 4 – Isolate Connected Drives

Disconnect/test:

• KSP servo drives
• External loads

Determine whether another module is collapsing the DC bus.

Step 5 – Inspect Cooling System

Verify:

• Fan speed
• Airflow path
• Cabinet cleanliness

Step 6 – Reset and Retest

After repair:

1. Reset KSS01310 in SmartHMI
2. Cold restart controller
3. Re-enable drives
4. Monitor startup voltage stability

Recommended Replacement Parts

⚠️ Compatibility Tip: Confirm KPP model, cabinet type (KRC4 standard/compact), and KSS version before replacement.

Pro Diagnostic Tip

Use SmartHMI → Drive Diagnostics → Power Supply Status to monitor:

• DC bus voltage trend
• Startup current draw
• Power module readiness

If KSS01310 appears together with KSS01305 / KSS01306 / KSS01408, suspect full KPP/DC bus instability rather than isolated drive failure.

How to Fix KUKA KSS01310

Dependingon diagnosis:

• Restore stable mains power
• Replace faulty KPP module
• Repair blown fuses/breakers
• Replace failed cooling fans
• Replace faulty KSP if loading DC bus
• Correct firmware/parameter mismatch

How to Prevent Power Supply Module Errors

To reduce recurrence:

• Maintain stable incoming power
• Clean cabinet filters/fans regularly
• Monitor DC bus voltage trends
• Replace aging KPP units proactively
• Avoid overloading servo power system

Related KUKA Power Errors

• KUKA KSS01305– DC Bus Undervoltage Error
• KUKA KSS01306– DC Bus Overvoltage Error
• KUKA KSS01404– Servo Drive Error
• KUKA KSS01408– Braking Resistor Error

These alarms are closely related to KUKA drive power distribution and DC bus stability.

FAQ

What does KUKA KSS01310 mean?

It indicates a failure or instability in the power supply module (KPP), preventing proper DC bus generation.

Can the robot operate with a power supply module error?

No. The system cannot enable drives without a stable DC bus.

What usually causes KSS01310?

Typical causes include:

• KPP failure
• Input voltage issues
• Overheating
• DC bus overload
• Cooling system failure

How do I fix KUKA KSS01310?

Check incoming power, inspect the KPP module, verify DC bus voltage, and replace faulty components.

Is th is usually a KPP failure?

In most cases yes, especially if the error is persistent and not related to external power issues.