Questions and answers

Our controllers work with inverters that accept power control over RS485 Modbus RTU. Many inverters used in commercial plants do, but the control command is different for each make.

Send us the inverter make, model and kW before you order. We will confirm what works, and set up the controller for your inverters.

Send an enquiry by the website form, WhatsApp, phone or email. We send a quotation with GST. You confirm with a purchase order and pay as per the quotation. Then we dispatch by courier and help with setup remotely.

See How to order for the full steps.

The right product depends on your site: inverters, meters, DG, distances and internet coverage. We prefer to suggest the right setup and give you one clear quotation with GST, so you know exactly what you pay.

Yes. We dispatch by courier to any location in India. Courier charges and the expected delivery time are shared with your quotation.

Zero export means your solar plant does not send power to the grid. The controller reads the grid meter and limits inverter output in real time, so solar only covers your own load. A small import margin is kept as a cushion, so a sudden load drop causes at most a short, small export.

You need it if your connection does not allow export, or if exported units are not paid. See Zero export.

When your diesel generator (DG) runs, a DG-sync controller limits solar so the DG always keeps a safe minimum load. This stops reverse power into the DG and lets solar save diesel. When the grid returns, solar goes back to full output. See DG-solar sync.

No Wi-Fi is needed for our 4G products. They come with a 4G data SIM. Please check that a mobile network has signal at the device location. Pulse can also use the site Wi-Fi.

Zero-export and DG-sync control runs on the device itself, so it does not depend on the internet.

The Solar Portal is the online page where you watch your plant. It opens in any web browser on a phone or computer. You see live power, daily and total energy, meter readings and alerts.

Use the Solar Portal Login link at the top of this website. We create your login after setup.

Control keeps running, because it runs on the device at site. Our monitoring devices keep the readings during an internet cut and send them when the connection is back.

For zero export, our controllers go to the safe side. If the grid meter reading is lost, solar is held back until the reading returns, so the plant does not export by mistake. You may lose some solar for that time, but you avoid export.

Choose wired when the meter panel is close to the inverters and an RS485 cable is easy to lay. Choose wireless when they are far apart, in different buildings, or when a cable route is hard. Send us a rough layout and we will advise.

Not always. If your grid or DG panel already has a multi-function meter with RS485 Modbus output, choose a kit without meter and send us the meter make and model. If not, choose a kit with meter.

We supply the products. Installation is done by your electrician or EPC team. Our team guides them on phone and WhatsApp, sets up the device remotely, and checks that it works.

The 4G data SIM and the Solar Portal access are renewed every year. Your quotation shows what is included and the renewal charge, so there are no surprises.

Yes. Bulk orders, dealers and EPC companies are welcome. WhatsApp us or write to sales@indolfin.com with your needs.