PH — High-voltage protection active

Was bedeutet PH ?

The system has detected that the busbar voltage is too high and has shut down to protect itself. This is indicated by 'PH' on the ODU main board LED display.

• Abnormal grid voltage
• Damaged drive board voltage sampling circuit
• Abnormal drive board busbar voltage sampling AD terminal

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check if the grid voltage is normal.

2. 2

   If grid voltage is abnormal, contact support.

3. 3

   If grid voltage is normal, suspect a drive board issue and contact support.