Display - Vdc Over
Description- Software DC Overvoltage Detection.Detected when the primary DC voltage exceeds 1080 Vdc for 60 seconds
Resolution:
Typical extreme cold condition: array Voc exceeds 1,000 V when inverter is in sleep mode.
1. Verify ambient temperatures and array or string open-circuitvoltage (Voc)
2. Check possible miss-wiring in the array … exceeding design-limit of modules/string
3. Check HMI Monitors, Main menu; 'DC Voltage
4. Check Main VTB4 sensor in DC cabinet section