DC UNDERVOLT
ABB · ACS800
Was bedeutet 3220 ?
The intermediate circuit DC voltage in the ABB ACS800 drive is insufficient. The DC undervoltage trip limit is 0.6 × 1.35 × U1min, where U1min is the minimum supply voltage. For 400V and 500V units (U1min = 380V), the trip level is 307V DC; for 690V units (U1min = 525V), it's 425V DC.
Häufige Ursachen
- Missing supply voltage phase or imbalanced input phases to the drive.
- Blown fuses in the main supply line to the drive.
- Insufficient incoming line voltage or a significant voltage sag.
- Internal fault within the rectifier bridge of the drive.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Check the main supply voltage at the drive input terminals and verify all three phases are present and balanced.
- 2
Inspect all input fuses for continuity and replace any blown fuses with the correct rating.
- 3
Verify the connections from the main supply to the drive's input terminals for looseness or corrosion.
- 4
If the issue persists after external checks, suspect an internal rectifier bridge fault and contact an ABB service representative.