ABB Robot Error 50087 – Cooling System Power Fault: Causes and Fix

⚠️ Quick Fix for ABB Error 50087

If this error appears, try these immediate actions:

• Check power supply to cooling fans and cooling modules
  
• Verify controller input voltage stability
  
• Inspect internal wiring for loose or damaged connections
  
• Restart the ABB IRC5 Controller using FlexPendant
  

Quick checks often restore cooling system power.

ABB Robot Error 50087 – Cooling System Power Fault occurs when the ABB IRC5 Controller detects that the cooling system is not receiving proper electrical power.

What Does ABB Error 50087 Mean?

Error 50087 indicates that one or more components in the cooling system cannot operate due to insufficient or unstable power supply.

This may lead to:

• Cooling fans not starting
  
• Temperature rising rapidly
  
• Triggering follow-up alarms like:
  
• 50081 – Cooling Fan Failure
  
• 50082 – Controller Overtemperature
  

Affected areas include:

• Cooling fans and fan power circuits
  
• Cooling control modules
  
• Internal power distribution lines
  
• Controller power supply units (PSU)
  

Common Causes of ABB Error 50087

Power Supply Failure

Faulty or unstable power supply units may prevent cooling components from operating.
Common issues include:

  1. Defective power supply units (PSU)
  2. Inadequate voltage levels
  3. Power interruptions or fluctuations

Verifying and replacing faulty power supplies ensures reliable cooling operation.

Loose or Damaged Wiring

Broken or disconnected wires interrupt power delivery to cooling systems.
Common issues include:

  1.Frayed or exposed wires
  2. Loose connections affecting power flow
  3. Cable degradation or wear

Inspecting and securing internal wiring restores proper power distribution to cooling components.

Blown Fuses or Protection Circuits

Overcurrent protection may cut power to cooling components.

Cooling Module Electrical Fault

Short circuits or internal failures in fan modules.

Voltage Fluctuation

Unstable external power can affect internal cooling circuits.

How to Troubleshoot ABB Error 50087

Step 1: Check Power Supply

• Verify input voltage to the controller
  
• Ensure stable and correct power levels
  

Step 2: Inspect Cooling System Power Lines

• Check wiring supplying power to fans and cooling modules
  
• Tighten or replace damaged cables
  

Step 3: Check Fuses and Protection Devices

• Inspect internal fuses
  
• Replace blown fuses if necessary
  

Step 4: Verify Cooling Component Operation

• Confirm fans start when powered
  
• Replace non-functional units
  

Step 5: Inspect Controller Power Unit

• Check PSU for faults or overheating
  
• Replace faulty power modules
  

Step 6: Reset the Controller

• Restart via FlexPendant
  
• Monitor system behavior
  

Step 7: Test Under Load

• Run the robot under normal conditions
  
• Monitor temperature and cooling performance
  

Related Components That May Be Affected

• Cooling fans and fan circuits
  
• Cooling control modules
  
• Power supply units (PSU)
  
• Internal wiring and fuses
  

When Should You Replace Components?

Replacement is recommended if:

• Fans receive no power
  
• Fuses repeatedly blow
  
• Power supply output is unstable
  
• Error persists after wiring inspection
  

💡 Need Replacement Parts or Repair Support? (High-Converting CTA)

Cooling power faults can quickly escalate into overheating and system shutdown:

👉 Browse our ABB spare parts inventory for power supply units, cooling fans, fuses, and IRC5 controller components.

Preventing Cooling Power Faults

• Maintain stable power supply conditions
  
• Regularly inspect internal wiring
  
• Replace aging power components proactively
  
• Protect system from voltage spikes
  
• Perform routine electrical checks
  

Related ABB Robot Error Codes

• ABB Error 50080 – Power Supply Fault
• ABB Error 50081 – Cooling Fan Failure
• ABB Error 50082 – Controller Overtemperature
• ABB Error 50083 – Cooling System Failure
• ABB Error 50084 – Cabinet Ventilation Blocked
• ABB Error 50085 – Temperature Sensor Fault
• ABB Error 50086 – Cooling Communication Fault
• ABB Error 50056 – Drive System Error
• ABB Error 50036 – Controller Safety I/O Fault
  

Recommended Parts for ABB Error 50087

• Colling Fan

Conclusion

ABB Robot Error 50087 – Cooling System Power Fault indicates that the cooling system is not receiving proper electrical power. This can prevent effective heat dissipation and lead to overheating risks.

By checking power supply stability, inspecting wiring, and replacing faulty components, engineers can restore safe cooling system operation.

ABB Robot Error 50087: Causes, Fixes, and FAQ

1. What causes ABB Error 50087?

It is typically caused by power supply failure, wiring issues, blown fuses, or faulty cooling modules.

2. How do I fix Error 50087?

Check power supply, inspect wiring, replace blown fuses, verify cooling components, and reset the controller.

3. Is this error critical?

Yes, because it disables cooling and can lead to overheating.

4. Can voltage instability trigger this error?

Yes, unstable input voltage can affect cooling system power.