KStar EASTRON SDM630MCT 40mA User manual

SDM630MCT
40mA
DIN Rail Energy Meter for Three Phase
KSTAR Electrical Systems
www.kstar.comShenzhen KSTAR New Energy Company Limited
USER MANUAL V1.3
Measures kWh kVArh, kW, kVAr, kVA, P,
F, PF, Hz, dmd, V, A, THD,etc.
Bi-directional measurement IMP & EXP
Two pulse outputs
RS485 Modbus
Din rail mounting 35mm
40mA CT connection
Better than Class 1 / B accuracy

01
Three-Phase Power Meter For Kstar Three phase inverter
Solution:
KSTAR three phase inverters can full the requirement of zero export function with a
smart meter and three CTs. The system can implement data-driven decisions to
control the inverter’s output. Three are two different methods of achieving zero export
function, which are phase-level zero export and system-level zero export.
The system conguration diagram below illustrates these two different methods and
how it works.
Method 1(phase-level zero export): The inverter’s three phase outputs are balanced,
and the output will be determined based on the phase which has the minimum power
owing through among the three phases. For example, if the load is 10kW/20kW/30kW
for phase A/B/C respectively, then the limit power for the inverter is 10kW each phase.
The rest of required power will be drawn from the grid.
Method 2(system-level zero export): The inverter’s three phase outputs are balanced,
and the output will be determined based on the total load. For example, if the load is
10kW/20kW/30kW for phase A/B/C respectively, then the limit power for the inverter is
20kW each phase. For phases that requires less power than 20kW, there will be phase-
level injections to the grid. For phases that requires more power than 20kW, there will
be power drawn from the grid to support the load.
L1: 10kW
L1: 10kW L1: 0kW
L2: 10kW
L3: 20kW
L2: 10kW
L3: 10kW
L2: 20kW
L3: 30kW
L1: 10kW
L1: 20kW L1: 10kW
L2: 10kW
L3: 0kW
L2: 20kW
L3: 20kW
L2: 30kW
L3: 20kW

S0
9 10
1
L
Voltage inputs N L N
2 3 4 5 6 7 8
11 12 13 14 15 16 17 18 19 20
RS485 Current inputs
WLAN GPRS
OFF
ON
PV1+ PV1- PV2+ PV2-PV3+ PV3-
WLAN
GPRS
COM1 COM2
L1 L2 L3 NPE
DC I NPU T AC OUTPUT
02
Meter & CT Installation:
Pull to release the retaining clip.
Mount the Meter on the DIN track and push
the retaining clip up (a clicksound indicates
it is installed well).
②
①
②
①The current should be consistent with the
direction of the arrow,which is from the
grid to the inverter.
Buckle the CT in the direction of the
arrow. ①
②
①
②
Wiring Connection:
PE
GRID
INVERTER
(LOAD)
LOAD
GRID
N
L3
L2
L1
Ensure CT and corresponding supply cable are connected to the same phase.
Incorrect connection or direction will cause incorrect data and may damage the meter.
Correct direction of CT: Grid→Inverter.
Pin 3
Pin 4
485A white
black
485B
S0
9 10
1
L
Voltage inputs
N L N
2 3 4 5 6 7 8
11 12 13 14 15 16 17 18 19 20
RS485 Current inputs

03
After wiring connection ,all the setting can be done on the inverter. It means there is
no need to set the meter. Setting steps of set meter mode and zero export function are
as follows:
A: Return Button Escape from current interface or function.
B: Up button: Move cursor to upside or increase value.
C: Down Button: Move cursor to downside or decrease value.
D: ENTER Button: Conÿrm the selection.Press ENTER to enter the selected
menu.
A B C D
1：SETUP
--SETUP--
2: GRID STD
3: REMOTE CTRL
4: RUN SETTING
--RUN SETTING--
16: Anti Rev-I
1: VPV START
2: DELAY START
Press Down button to nd the option “4: RUN SETTING”
and conrm the entry by pressing the Enter button.
2：INQUIRE
3：STATISTIC
--PASSWORD--
INPUT： XXXXX
Press Return button to enter user
setting interface. Then select the"1.SETUP"
menu item and conrm your selection with
the Enter button.(Press Up button or down button
to select different options)
Before entering the setup
interface, enter the password "00000"
and conrm the entry by pressing the
Enter button.(Press Up button or down button
to change the number, and press Enter button
to input the next number)
--USER-- step1: step1(2):
step2:
Press Down button to nd
the option “16: Anti Rev-I”
and conrm the entry by
pressing the Enter button.
step3:
→
Inverter Setting:
--Anti-Rev Current--
1: Enab/Disab
2: Meter type
3: Anti Method
After entering “Anti Rev-I”, press Down button to
nd the option “1: Enab/Disab” and conrm the
entry by pressing the Enter button. Change the
settings to Enable or Disable as required. Note that
the "meter type" in step 5 can not be changed if this
setting is "Enabled".
step4:
→
--Meter Type--
1: Acrel
2: Estron
Press Down button to nd the option “2: Meter type”
and conrm the entry by pressing the Enter button.
Select the correct meter type “Acrel” or “Estron”.
The meter type is screen printed on the meter. If the
"meter type" needs to be changed, please make sure
the "Anti Rev-I" function is "Disabled".
step5:
→
-- Anti R-I Metho --
1: SinglePhase
2: R-S-T Sum
Press Return button to “Anti-Rev Current” interface
and press Down button to nd the option “3: Anti
Method” and conrm the entry by pressing the Enter
button. Select the required method.
step6:
→
-- Amended value --
INPUT: +00000
UNIT: W
RANGE: +/- 32767
Press Return button to “Anti-Rev Current” interface and
press Down button to nd the option “4: Anti Amend”
and conrm the entry by pressing the Enter button.
Set the required Amended value.
step7:
→
1.SinglePhase: Adjust the inverter’s output based on the phase that has the lowest output and ensure there is no export power on the phase level
R-S-T Sum: Adjust the inverter’s output according to all three phases’ output and ensure there is no export power on the system level.

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