Ballast Resistor Overtemperature

What does LED_TEMP_FAULT_ON mean?

The "Temp Fault" LED on the KUKA KRC4 Sunrise Cabinet Med Controller is ON, indicating an overtemperature condition at the ballast resistor R1. This is a critical condition that can lead to system shutdown or damage if not addressed.

• Loose or improper connection at connector X501 to the ballast resistor.
• Insufficient cooling within the control box, possibly due to blocked vents or fan failure.
• Faulty temperature sensor located on the ballast resistor R1.

Click steps to track your progress.

1. 1

   Inspect and secure the connection at connector X501 for the ballast resistor.

2. 2

   Check the control box cooling system, including fans and ventilation openings, for obstructions or malfunctions.

3. 3

   Verify the functionality and mounting of the temperature sensor located centrally on the ballast resistor R1 on the right-hand inner wall.

4. 4

   Allow the KUKA KRC4 Sunrise Cabinet Med Controller to cool down if the ambient temperature is excessive.