Communication Connection; Dry Contact Signal; Electrical Performance - Growatt SPF 5000T DVM-MPV User Manual

Communication Connection

Please use supplied communication cable to connect to inverter and PC. Follow on-screen instruction to install
the monitoring software. For the detailed software operation, please check user manual of software. The
monitoring software is downloadable from our website www.ginverter.com.

Dry Contact Signal

There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to
generator when battery voltage reaches warning level.
1. The wiring between generator and the inverter (not all generators are the same wiring diagram as below,
please ask supplier for instruction if there‟s any questions.)
Unit Status
Power Off
Battery not in "LI"
mode
Power On
Battery in "LI" mode

Electrical Performance

Inverting
Overload Capacity
1. For 100%<Load<120%, Fault (Power off) after 10 seconds.
2. For 120%<Load≤300%, Fault (Power off) after the 5 seconds.
Soft Start in Inverter Mode
When the inverter is turned on, the output voltage gradually ramps up from 0VAC to rated voltage in about 1.2 sec.
This effectively reduces otherwise very high starting inrush current drawn by AC loads such as Switched Mode Power
Supplies and inductive loads. This will result in lower motor inrush current, which means less impact on the loads and
inverter.
Caution:
After the inverter is switched on, it takes a finite amount of time to self-diagnose and get ready to deliver full power.
Always switch on the load(s) after a few seconds of switching on the inverter. Avoid switching on the inverter with
the load already switched on. This may prematurely trigger the overload protection. When a load is switched on, it
may require an initial higher power surge to start. If multiple loads are being powered, they should be switched on
individually so that the inverter is not overloaded by the higher starting surge.
Condition
Unit is off and no output is powered.
Output is off and no output is powered
Battery voltage <
Low DC Cut-off Voltage +2Vdc
Detected there‟s AC input
Battery SOC <
Low DC Cut-off Soc +5%
Detected there‟s AC input
Dry contact port:
NC & C NO & C
Close Open
Close Open
Open Close
Close Open
Open Close
Close Open
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