Sofar solar 3-12KTL-G3 User manual

Three-Phase Meter
CONFIGURATION
GUIDE

Three-Phase Meter Configuration Guide .......................... 1
Preface .............................................................................................. 1
1. Symbol interpretation .................................................. 2
2. Introduction ....................................................................... 3
3. Meter installation ............................................................ 3
4. Setting Feed-in limitation of the inverters ......... 5
5. Check the installation results ................................... 8
6. Communication ............................................................... 8
7. Display function ............................................................ 14
8. Troubleshooting ............................................................ 20
9. Interface description ................................................... 21
CONTENTS

Three-Phase Meter
©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
01
Preface
Versions Modify records Time
V1.0 First Edition Release 2023.04.20
Scope of application
This product manual describes the installation, electrical connection, debugging,
maintenance and troubleshooting of Three-Phase Meter.
Versions of the manual
1
2
3
4
5
6
7
NO.
Three-phase inverters
(PV)
Three-phase inverters
(Energy Storage)
HYD 5-20KTL-3PH
ME 5-20KTL-3PH
Product Type Model
Table of adapted inverters
SOFAR 3-12KTL*-G3
SOFAR 15-24KTL*-G3
SOFAR 25-50KTL*-G3
SOFAR 60-80KTL*-G3
SOFAR 100-136KTL

Three-Phase Meter
©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 02
1. Symbol interpretation
Read the safety precautions in this manual carefully. If ignored, serious injury or death may
result.

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
03
2. Introduction
This scheme is a 1-to-1 communication mode, and one set of electricity meter cannot
correspond to multiple grid-connected inverters.
3. Meter installation
This scheme is a 1-to-1 communication mode, and one set of electricity meter cannot
correspond to multiple grid-connected inverters.
Three-Phase
Meter DTSU666
Type Model
3x230V/400V 50Hz/60Hz
1.5(6)A
HY94C5-200,
200A, 2KV,
-30~75℃, Φ24
5(80A) No need for
external CT
Appearance Reference
Voltage Frequency Adapted CT
Nominal
Current
·Please ensure installation with power off
·Please select the correct power connection
·Please connect in strict accordance with the wiring diagram
·Please install in a suitable meter size distribution cabinet
3.1 The meter is installed on the DIN35 standard guide rail.
Three-Phase Meter

©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 04
3.2 AC current Conductor Cross-sectional Area Range ≤16 mm2
3.3 RS485 cable
3.4 Wiring diagram
Three-Phase Meter
The meter communication is in RS485 communication mode, and the port rate can be
set to 1200,2400,4800, and 9600 (default). The device communication address defaults to
01(please see instrument factory number or crystal display screen). For communication
lines, shielded twisted pair wire shall be used, with copper net diameter not less than
0.5mm². When wiring, the communication line should be far away from strong cables or
other strong electric fields, with a maximum transmission distance of 1200 meters.
Meter+CT

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
05
Three-Phase Meter
4. Setting Feed-in limitation of the
inverters
SOFARGrid-tiedInverters have two button operation menus respectively.
4.1 Introduction of the button function (two buttons on the screen)
CT is installed between the load and the grid, CT with arrow with the arrow in the figure
(arrow points to the grid). CT without an arrow, the direction of the arrow represents the
direction of P1 (inverter) to P2 (power grid).
Meter port 1: connected with A phase CT red line, and meter port 3 is connected with A
phase CT black line.
Meter port 2: connected to the phase A power grid power grid sampling.
Meter port 4: connected to B phase CT red line, and meter port 6 connects to B phase
CT black line.
Meter port 5: connected to the B-phase power grid power grid sampling.
Meter port 7: connected to C phase CT red line, and meter port 9 is connected to C
phase CT black line.
Meter port 8: connected to the phase C power grid power grid sampling.
Meter port 10: connected to the N-phase power grid power grid sampling.
Meter port 24: connected to inverter communication port RS485A (+), and meter port 25
is connected to inverter communication port RS485B (-).
①
②
③
④
⑤
⑥
⑦
⑧
Only Meter

©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 06
1. If you only need to monitor the power, you don't need the Feed-in limitation function:
10. Set Feed-in limitation ->Disable
2. If you need to connect the meter to realize the Feed-in limitation function:
10. Set Feed-in limitation →Reflux Enable→***KW
13. PCC select→PCC Meter.
14. Reflux Mode
When the three-phase load is balanced, the three modes have the same effect.
→CTR Total Power (The vector sum of three-phase current addition shall
not exceed the Feed-in limitation power)
→CTR Phase Power(Single phase minimum load + Feed-in limitation
power /3)
→CTR Selling Power(The current of output current (towards the power
grid) shall not exceed the Feed-in limitation power)
Parameter setting (long
press ↓to enter the menu) ---Long press ↓to enter
Some settings require a password
(the default password is 0001)
(The menu number varies slightly
according to different models.)
1. Set the system time
2. Clear up the power generation capacity
3. Clear the event record
4. Import the safety gauge parameters
5. Switch on machine control
6. Set up the total power generation capacity
7. Set up the correspondence address
8. Set the input mode
9. Set language
10. Set Feed-in limitation
11. Logical interface
12. Curve scan
13. PCC Select
14. Reflux Mode
Three-Phase Meter
4.2 Introduction (four buttons on screen)

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
07
Advanced setting
(back to the menu) ---Press the OK key to enter
Some settings require a password
(the default password is 0715)
(The menu number varies slightly
according to different models.)
1. Set the system time
2. Clear up the power generation capacity
3. Clear the event record
4. Set up safety regulations for countries
5. Switch on machine control
6. Country setting
7. Settings, total power generation
8. Settings, correspondence address
9. Set up, input mode
10. Set up the language
11. Set the startup parameters
12. Set the safety gauge voltage
13. Set the safety regulation frequency
14. Set up the insulation impedance
15. Set the reactive power
16. Set up the active power and load reduction
17. SetFeed-in limitation
18.MPPT scan
19. Start-up time setting
20. SetMeter
21. Logical interface
22. Set the power ratio
Three-Phase Meter

©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 08
5. Check the installation results
For the transformer access type, turn off the load, the power on the meter shows the
forward power (Imp), open the load to turn off the inverter, the reverse power (Exp) on the
meter represents the correct position and direction of the transformer; the power factor is
close to 1 represents the transformer and the voltage line phase, otherwise check the
phase correspondence.
For the direct access type, turn off the load, the power on the meter shows the forward
power (Imp), open the load and turn off the inverter, and the reverse power (Exp)
displayed on the meter means that the meter wiring direction is correct.
1. If you only need to monitor the power, you don't need the Feed-in limitation function:
20. SetFeed-in Limitation→Disable
2. If you need to connect the meter to realize the Feed-in limitation function:
17. SetFeed-in limitation→Enable
20. Feed-in Power->***KW
Three-Phase Meter
5.1 Direction of current
6. Display function
Open the meter enabling function on the inverter. When RS485 has abnormal communi-
cation, the inverter will report an abnormal communication fault. When encountering this
fault, please check the RS485 wiring, and try to change the positive and negative to solve
it.
The positive pulse indicator flashes when the meter is in a normal operating state (on
duty). If the indicator light is not flashing or not on for a long time, check that the meter is
wired correctly.
5.2 RS485 Communications

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
09
No. Content Description
01
02
03
04
05
Three-Phase Meter
Each set of data is displayed for 5 seconds, and the display interface is shown below.
Combined Active Energy
=10000.00kWh
Import Active Energy
=10000.00kWh
Export Active Energy
=2345.67kWh
Protocol:
DT/L645-2007
address =000000000001

©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 10
Three-Phase Meter
06
07
08
09
10
11
Communication Modbus
n1 states no valid bit and
1 stop bit 9600 stats Baud
rate 9600bps 001 states
Meter address
A Phase Voltage
=220.0V
B Phase Voltage
=220.1V
C Phase Voltage
=220.20V
A Phase Current
=5.000A

No. Content Description
©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
11
Three-Phase Meter
12
13
14
15
16
17
B Phase Current
=5.001A
C Phase Current
=5.002A
Combine Phase Active
Power=3.291kW
A Phase Active Power
=1.090kW
B Phase Active Power
=1.101kW
C Phase Active Power
=1.100kW

Three-Phase Meter
18
19
20
21
·Protocol: DL/T645-2007 display 4 and 5，Protocol: Modbus-RTU display 6 and 7.
·The above interface is used to show the meaning of the display content. Due to the
different functions of the instrument, the display symbols will increase or decrease.
·When RS485 communicating, the telephone sign will flashes.
Combined Phase
Power Factor PFt=0.500
A Phase Power Factor
Pfa =1.000
B Phase Power Factor
PFb =0.500
C Phase Power Factor
PFc =-0.500
©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 12

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
13
Three-Phase Meter
6.1 Programming operation
Key description: "SET" key means "OK", or "Cursor shift" (when entering the number), "ESC"
key means "exit", "key" "means" add ", because only the key can only" add ", not" subtract ",
when you add the number to the maximum value, the number will start from 0. Enter a
password (default: 701).
The meter can match different proportions of transformers. Before use, the current ratio
should be set according to the transformer ratio (such as 100A: 5A transformer, 20 current
ratio). For this equipment, our company has adjusted the current ratio before shipment.
Set up to refer to the following figure.
Figure: Setting examples for current and potential transformer ratio
Figure: Setting examples for communication address and Baud Rate

Three-Phase Meter
Parameter
address Parameter code
Instructions of
parameters
Data
type R/W
property
Data
length
Word
0000H
0001H
0002H
0003H
0006H
0007H
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
REV.
UCode
ClrE
net
IrAt
UrAt
Network selection
(0: three phase four
wire,1: three phase
three wire)
Version No. 16bit with
signal
16bit with
signal
16bit with
signal
16bit with
signal
16bit with
signal
16bit with
signal
Programming
code codE (1～
9999)
Power reset CLr.E
(1: energy clear)
Current transformer
rate IrAt (1～9999)
Voltage transformer
rate UrAt（*）
(1～9999 represents
voltage ratio 0.1～
999.9)
7.1 Modbus protocol address table
7. Communication
Communication protocol: complied with the requirement of Modbus communication
protocol. The following table is the common Modbus protocol address table.
Modbus-RTU protocol read command is 03H, write command is 10H.
NOTE
Keyboard parameters (specific parameters see the instructions of
programming parameters, the actual value with (*) parameter＝
communication parameter value × 0.1）
©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 14
000AH 1 R/WDisp 16bit with
signal
Rotating display
time(s)）

©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
15
Three-Phase Meter
Parameter
address Parameter code
Instructions of
parameters
Data
type R/W
property
Data
length
Word
000BH 1 R/WB.LCD 16bit with
signal
16bit with
signal 1
1
1
1
2
2
2
R/W
R/W
R/W
R/W
R
R
R
16bit with
signal
16bit with
signal
16bit with
signal
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-precision
floating point size
end mode (0:
ABCD;1: CDAB;2:
BADC;3: DCBA;)
Protocol switching
(1: DL/T645-2007;2:
n.2;5: n.1;6: E.1;7:o.1)
Backlight time
control(s)
Communication
baud rate bAud
(0: 1200;1: 2400;2:
4800; 3:9600;
4:19200)
Three phase line
voltage data, Unit
V(×0.1V)
Three phase
voltage data, Unit
V V(×0.1V)
(Invalid for three
phase)
Communication
address Addr (1～
247)
000CH
002CH
002DH
002EH
2006H
2008H
200AH
2000H
2002H
2004H
Ua
Ub
Uc
Uab
Ubc
Uca
Endian
Protocol
bAud
Addr
Electricity data on the secondary side

Three-Phase Meter
©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 16
200EH
2010H
2
2
2
2
2
2
2
R
R
R
R
Ib
Ic
Combined active
power, Unit
W(×0.1W)
A phase active
power, Unit
W(×0.1W)
C phase active
power, Unit
W(×0.1W)
Combined reactive
power, Unit
var(×0.1var)
Combined power
factor (positive
number：
Inductive, negative
number:
capacitive) (×0.001)
A phase reactive
power, Unit
var(×0.1var)
B phase active
power, Unit
W(×0.1W)
(Invalid for three
phase three phase)
C phase reactive
power, Unit
var(×0.1var)
B phase reactive
power, Unit
var(×0.1var)
(Invalid for three
phase three phase)
Three phase
current data,
Unit A(×0.001A)
2012H Pt
2014H
2016H
2018H
201AH
201CH
201EH
2020H
202AH
Pb
Pc
Qt
Qa
Qb
Qc
PFt
Pa
2
2
2
2
R
R
R
R
R
R
R
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
2 R
Single-
precision
floating point
200CH Ia

Parameter
address Parameter code
Instructions of
parameters
Data
type R/W
property
Data
length
Word
©Copyright of Shenzhen SOFARSOLAR Co., Ltd.
17
Three-Phase Meter
A phase power
factor (positive
number：
Inductive, negative
number:
capacitive) (Invalid
for three phase
three phase)
(×0.001)
202CH PFa 2 R
Single-
precision
floating point
202EH
2030H
2044H
101EH
1028H
1032H
103CH
Freq
ImpEp
ExpEp
Q1Eq
PFb
PFc
2
2
R
R
2
2
2
2
R
R
R
R
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
Single-
precision
floating point
B phase power
factor (positive
number：
inductive, negative
number:
capacitive)
(Invalid for three
phase three phase)
(×0.001)
C phase power
factor (positive
number: inductive,
negative number:
capacitive)
(Invalid for three
phase three phase)
(×0.001)
Frequency, Unit
Hz(×0.01Hz)
（current）positive
total active energy
（current）negative
total active energy
（current）Total
reactive energy of
the first quadrant
（current）Total
reactive energy of
the second
quadrant
Q2Eq 2R
Power secondary side data

©Copyright of Shenzhen SOFARSOLAR Co., Ltd. 18
7.2 Read data copy
Assume the voltage ratio is 1.0, the current ratio is 20, single-precision floating point mode (0:
ABCD), the example of read dada is as follows:
Read A phase voltage Ua(2006H):
Read command frame: 01 03 20 06 00 02 2F CA (hexadecimal, 01 is the table address, 03 is
read command, 2006 is A phase voltage address, 0002 is single-precision floating point data
length, 2PCA is CRC16 check code).
Return frame: 01 03 04 45 09 70 00 1A FD (01 is table address，03 is read command，04 is
read register return data number, 45097000 is data(single-precision floating point))1APD is
CRC16 check code)Ua measurement=0x45097000(single-precision floating point)×voltage
ratio×0.1=2199(decimalist) × (10×0.1) × 0.1=219.9V.
Read A phase current Ia(200CH)：
Read command frame：01 03 20 0C 00 02 0F C8 (hexadecimal，01 is table address，03 is
read command，200C is A phase current address,0002 is single-precision floating point data
length, 0FC8 is CRC16 check code).
When the ratio of the voltage transformer is 1, the data of read voltage transformer ratio
register UrAt is 10. When the ratio of voltage transformer is 1, ignore the above table
(UrAt×0.1).
·Single-precision floating point adopts standard IEEE754 format, total 32 bit(4 word). The
single-precision floating point mode is assumed to be ABCD (high type in the front, low
byte behind).
·The table only give the regular correspondence address. If you need the primary data
address and other addresses, you can call for the detailed communication protocol.
NOTE
Three-Phase Meter
Single-
precision
floating point
Single-
precision
floating point
（current）Total
reactive energy of
the third quadrant
（current）Total
reactive energy of
the fourth
quadrant
1046H
1050H
Q3Eq
Q4Eq
2R
2R