Sungrow SH3K6 - Page 111

User Manual 11 Appendix IV: Power Response
103

Low (state value 0): two terminals are not connected and you can get
permanent operation at permissive thresholds;

High (state value 1): two terminals are connected and you can get
permanent operation at restrictive thresholds;
External Control
In this mode, the inverter is connected with the external device via an Ethernet
cable. Through the external signal:

Low (state value 0) in case of really operating communication

High (state value 1) in case of external commands sent by the external
device
Note: The local control must be set permanently in the high state (value 1).
Tab. 11-7 Frequency Protection Parameters in Conditions of SPI
Explanation
Local Control
External Control
0
1
0
1
Minimum frequency 1 (F<) (Hz)
47.50
49.80
47.50
49.80
Minimum frequency 1 (F<) tripping time (s)
0.1
0.1
4.0
0.1
Minimum frequency 2 (F<<) (Hz)
47.50
47.50
47.50
47.50
Minimum frequency 2 (F<<) tripping time
(s)
0.1
0.1
4.0
4.0
Maximum frequency 1 (F>) (Hz)
51.50
50.20
51.50
50.20
Maximum frequency 1 (F>) tripping time
(s)
0.1
0.1
1.0
0.1
Maximum frequency 2 (F>>) (Hz)
51.50
51.50
51.50
51.50
Maximum frequency 2 (F>>) tripping time
(s)
0.1
0.1
1.0
1.0
 The default mode of SPI is local control with low state value 0 (no
connection between RefGen and Com/DRM0 terminals).
 When the local control and external control modes exist at the
same time, the external control mode takes priority over the local
control mode.