Sungrow SH3K6, Quick User Manual

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Quick User Manual 2 Electrical Connection
15
2.9 Connecting to Interface Device for SPI (Italy)
The inverter has integrated the interface protection system (SPI) to provide the
following functions:

Maximum/minimum frequency protection;

Ability to receive signals aimed at changing the frequency protection thresholds
and to receive the command of remote shutdown.
NO. Interface SPI Function
1 Ethernet
Remote control. Receive external signal/command to change
the frequency protection parameters or shutdown the
inverter. See “
2.5.1 Ethernet Connection
“ for the cable
connection.
2
RefGen,
Com/DRM0 Local control. Shortly connecting the two terminals will
change the frequency protection parameters.
3 A1, B1
Receive external command to shutdown the inverter remotely.
See “
2.6.3 Connecting the RS485 Cable
” for the cable
connection.
The following figure shows the cable connection to external interface device.
Cross-section: 2*0.5 mm², cable diameter: 3 mm–5.3 mm