Product manual

Operation
28
Control mode
Local
Remote
Communication
On
Off
Pin1
-
high
low
high
low
Pin2
-
high
high
low
low
47.5-51.5 Hz
Frequency range
47.5-51.5 Hz
49.5-50.5 Hz
49.5-50.5 Hz
47.5-51.5 Hz
normal
Status
Waiting(reconnecting)
high
Waiting(reconnecting)
normal
Cos-phi
P1 P2 P3
P/Pn
0.2
0.5
1
0.95
1
C. SPI (Interface Protection System) setting, as shown in the following figure, it can be enabled or
disabled, and it is on as default.
If Communication is on , the inverter runs in local command mode, the tripping time (time between the
instant the fault begins and the protection intervention) is 0.1s~5s with frequency tripping range between
47.5Hz and 51.5Hz;
If Communication is off, the inverter runs in remote control mode, please see remote control mode for
details.
Remote control mode:
As shown in the following photo, on the inverter control board there is a connector which allows to wire
an external signal input.
When the local mode is active, the external signal is ignored.
To set the remote control mode, the external signal input pin1 is low (short pin1 and pin5), this will
disconnect the inverter from grid;
when the external signal input pin2 is low (short pin2 and pin5), the inverter runs in a narrow frequency
range (49.5Hz--50.5Hz); if the external signal pin2 is high (pin2 and pin5 opened), the inverter runs in
the wide frequency range (47.5Hz---51.5Hz).
Pin1: external trip signal
Pin2: wide/narrow scope frequency range
Pin3: reserved
Pin4: reserved
Pin5: Gnd