Line voltage fault

What does F383 mean?

With HVR power supply units only! The mains voltage exceeds permissible tolerances of 3x 380...480V, ± 10%. This fault occurs when the incoming supply voltage is outside the acceptable operating range for the Indramat HVR power supply unit.

• Mains voltage exceeds permissible tolerance (3x 380...480V, ± 10%) at the HVR power supply unit input.

Click steps to track your progress.

1. 1

   Measure the incoming line voltage (phase-to-phase) at the input terminals of the Indramat HVR power supply unit (X1/L1, X1/L2, X1/L3).

2. 2

   Verify the measured voltage is consistently within the specified range of 3x 380...480V, ± 10%.

3. 3

   If the voltage is outside the range, check the upstream power distribution system for issues or ensure a correctly sized and configured matching transformer is used.

4. 4

   Consult the power utility if persistent voltage fluctuations or incorrect supply levels are detected on the main supply.