Product Manual

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If you have technical queries concerning our products, please contact your installer or
distributor. If further support is required, please contact Aptos’ support at this link.
 www.aptossolar.com
 Aptos customer service center: [e-mail]
1.5 Other Information
Product information is subject to change without notice. The user manual will be updated
frequently; please refer to Aptos Solar Technology's official website at
www.aptossolar.com for the latest version.
2. Aptos Solar Technology Microinverter System
2.1 Microinverter
The Microinverter converts the DC output of PV modules into grid-compliant AC power. It
sends the output information of PV modules and the operation data of the microinverters to
the DTU, which is the hardware basis of the module-level monitoring. With conversion
efficiency up to 96.7%and MPPT efficiency up to 99.9%, Aptos microinverters rank in
the first class of the world’s microinverter industry.
2.2 DTU
The DTU is the key component in Aptos microinverter system. It works as the
communication gateway, which operates between the Aptos microinverters and the
Aptos Monitoring Server. The DTU communicates with the microinverter wirelessly via
2.4GHz Proprietary RF (Nordic), collecting the operation data of the system. Meanwhile, the
DTU connects to the Internet via router and communicates with Aptos Monitoring Server. The
microinverter system operation data will be uploaded to Aptos Monitoring Server via DTU.
2.3 Aptos Monitoring Server
The Aptos Monitoring Server collects the operation data and status of the microinverters in
the system and provides the module-level monitoring for the users and maintenance staff.
The following diagram shows the Aptos Microinverter system:
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MAC
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DTU