+CT
R
+CT
S
+CT
T
DTSU meter connections
–
with COM port
2
. Connect PIN 10 of the Meter to the neutral wire (N), connect PINs 2, 5 and 8 to phases R, S and T respectively.
CT connections, the terminals of the sensor positioned on
phase R
must be connected to
PIN 1
(
red wire
) and
PIN 3
(black wire).
The terminals of the sensor positioned on
phase S
must be connected to
PIN 4
(
red wire
) and
PIN 6
(black wire).
The terminals of the sensor positioned on
phase T
must be connected to
PIN 7
(
red wire
) and
PIN 9
(black wire).
Position the sensors, paying attention to the direction on the sensor itself (arrow pointing towards the grid).
ATTENTION: hook the CT sensors to the phases only after connecting them to the Meter.
1
. Connect Meter and
inverter via the RS485
serial port.
On the Meter side, this
port is identified by
PINs
24 and 25.
On the inverter side, use
the connection port
identified as “COM” by
connecting
PINs 6 and 7
.
NOTE: For
distances
between the meter and hybrid inverter of
more than 100 metres
, it is recommended to connect two 120 OhM resistors
along the 485 daisy chain: the first to the inverter (between PINs 6 and 7 of the inverter COM), the second directly to the meter (PINs 24 and 25).
PIN INVERTER
PIN METER
Note
6
24
Meter communication
7
25
N
R
H
T
CT
R
CT
S
CT
T
-CT
R
-CT
S
-CT
T
GRID
HOME
Meter on
Exchange
6 7
Meter on
External
Production
1. Press the button to check
that the Meter address is set to
001
.
In addition to what is described above, the display
shows the values of:
✓
Current;
✓
Voltage;
✓
Power factor;
✓
Power.
2. To configure the Meter reading on the inverter, access the
inverter display (as shown in the figure):
1.
First button on the left of the inverter;
2.
Advanced settings;
3.
Enter password “0715”;
4.
Set PCC Meter;
5.
Enable;
6.
Ok.
DDSU METER SETTING ON EXCHANGE AND INVERTER
20
