47
24V supply low
Danfoss · VLT HVAC Drive High Power
What does 47 mean?
The 24V DC supply generated by the switch-mode power supply (SMPS) on the power card is operating below its acceptable voltage range. This low voltage can cause erratic behavior or non-operation of components that rely on the 24V supply, potentially leading to incorrect sensor readings or control issues.
Complete Troubleshooting Guide
- 1
Check for a defective power card that might not be regulating the 24V supply correctly.
- 2
Verify the load on the 24V supply to ensure it is not overloaded.
- 3
Inspect wiring for loose connections or high resistance.