Due to shadows or occlusions during the day, as well as string orientation or component mismatch, a multi-peak power curve could be present in the customer plant at certain moments of the day. To help solve this issue, the MPPT global scanning feature avoids power generation loss by finding the global maximum. There are two scanning modes for global MPPT scanning. Automatic scanning and Periodic scanning. The global MPPT scanning will only be triggered when the inverter is running normally and will not be triggered when the inverter is shut down or fails. When manual scanning is not enabled, MPPT Scan mode is automatic.
Settings of the Global MPP Scan in iSolarCloud:
1. One-time MPP scan:
After this parameter is set, the inverter will immediately start the MPP scan. This only happens if no error is present.
After the MPP scan has been successfully run once, the scan will not be triggered again.
If an error or power reduction occurs during operation, the MPP Scan will perform an MPP Scan again when it is restarted.
2. Daily one-time MPP Global Scan:
If this mode is selected, a specific time must be set for the MPP scan. (hour and minute)
If this setting has been activated, the inverter will perform an MPP scan at the set time, provided that no error is present.
3. Repeated scanning:
If this operating mode has been selected, the inverter will always perform an MPP scan after the set time (minutes), provided that no error is present.
For further information, please download the user manual here.
This manual is intended for professional technicians who are responsible for installation, operation, maintenance and troubleshooting of inverters, and users who need to check inverter parameters. The inverter must only be installed by professional technicians.
The professional technician is required to meet the following requirements:
Know electronic, electrical wiring and mechanical expertise, and be familiar with electrical and mechanical schematics.
Have received professional training related to the installation, commissioning and troubleshooting of electrical equipment.
Be able to quickly respond to hazards or emergencies that occur during installation, commissioning and troubleshooting.
Be familiar with local standards and relevant safety regulations of electrical systems.
Read this manual thoroughly and understand the safety instructions related to operations.