Growatt SPF3000 User Manual

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4 Communication Connection
Growatt
Growatt
SPF3000/5000/SPF3000 PLUS is compatible with WIFI communication.
There’re two methods to configure and monitor the device by local PC or Smartphone
APP. About how to use WIFI modular, please refer to WIFI user manual and following
picture shows how to install WIFI for SPF3000/5000/SPF3000 PLUS:
Figure 4.1
5 Dry contact
There’s one dry contact (2A/30VDC) available on the rear panel. It could be used to
deliver signal to external device when battery voltage reaches warning level.
Unit
Status
Condition
Dry contact
port:
NC & N
NO & N
Power Off
No output is powered
Close
Open
Power On
Output is powered from Utility
Close
Open
Output is
powered
from
Battery
or Solar
AC output
source is "UTI
first"
Battery voltage < Low DC
warning voltage
Open
Close
Battery voltage > Battery
charging reaches floating
stage
Close
Open
AC output
source is "PV
first" or "BAT
first”
Battery voltage < Setting
value in "Battery Low
Volt”
Open
Close
Battery voltage > Battery
charging reaches floating
stage
Close
Open
Table 5.1
Operation 6
6.1.Power on/off
Once the unit has been properly installed and the batteries are connected well,
simply press On/Off switch (located on the button of the case) to turn on the unit.
Figure 6.1
6.2.Operation and display panel
The operation and display panel, shown in below chart, is on the front panel of the
inverter. It includes LCD display, indicators, and function keys to show the operating
status and input/output power information.
Figure 6.2
LED indicator:
LED indicators
LED status
Description
Green
Solid on
Normal: Inverter working well
Red
Flashing
Warning : Warning, but still working
Red
Solid on
Error: Inverter stop work
Table 6.1

Growatt SPF3000 Specifications

General

Brand	Growatt
Model	SPF3000
Category	Inverter
Language	English