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Growatt SPH

Read the instruction below on how to connect a growatt inverter to Zato box system.

  • Growatt SPH single phase
  • Growatt SPH 3 phase

Prerequisite

  • Zato box one

Step 1 - Connect inverter monitoring cable​

In your inverter settings. Set the RS485 port setting to VPP mode (see troubleshooting below).

We don't currently sell an RS485 cable for this port, but you can make your own cable by buying a USB to RS485 adapter and cutting a normal computer network cable or crimping an RJ45 plug.

Step 2 - Configure zatobox to read to a Growatt SPH inverter​

Troubleshooting​

If you do not get a reponse from your SPH inverter via RS485, try pins 4 and 5 instead as shown in the official Growatt SPH documentation below.

If you are unable to find VPP mode on your inverter, it should be available under WorkMode/RS485 as described in the Growatt SPH documentation: