E466, E483, or E488 — Power supply or voltage sensor error

¿Qué significa E466, E483, E488 ?

These codes indicate problems related to the power supply, DC Link voltage levels (either too low or too high), or a fault with the AC input voltage sensor. This can prevent the unit from operating correctly.

• Incorrect or loose power connection.
• Fault in the input power supply (e.g., incorrect voltage for single-phase or 3-phase).
• Reactor or its connecting wires are faulty or incorrectly connected.
• Defective fuses in the EMI PBA.

Haga clic en los pasos para seguir su progreso.

1. 1

   Turn off the power to the unit.

2. 2

   Check the main power connection to the unit and ensure all wires are correctly and firmly connected, with no jointed power connections or interchanged communication wires.

3. 3

   Verify that the input power voltage is correct for your system (e.g., 220Vac for single-phase, 380Vac for 3-phase).

4. 4

   If the error persists after checking connections and power, turn off the power again and check the reactor and its connecting wires for any damage, scratches, or loose terminals.

5. 5

   If there is a defective fuse in the EMI PCB, professional service is needed for replacement.

6. 6

   If the problem continues, professional assistance is required to inspect internal components like the Inverter PCB.