Eastron SDM630-Modbus V2 User manual

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
SDM630-Modbus V2
DIN Rail Smart Meter for Single and Three Phase Electrical Systems
Measures kWh Kvarh, KW, Kvar, KVA, P,
F, PF, Hz, dmd, V, A, etc.
Bi-directional measurement IMP & EXP
Two pulse outputs
RS485 Modbus
Din rail mounting 35mm
100A direct connection
Better than Class 1 / B accuracy
USER MANUAL
2020 V1.5

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Introduction
The SDM630-Modbus V2 measures and displays the characteristics of single phase two wires
(1p2w), three phase three wires (3p3w,) and three phase four wires(3p4w) supplies, including
voltage, frequency, current, power ,active and reactive energy, imported or exported. Energy is
measured in terms of kWh, kVArh. Maximum demand current can be measured over preset
periods of up to 60 minutes. In order to measure energy, the unit requires voltage and current
inputs in addition to the supply required to power the product.
SDM630-Modbus V2 supports max. 100A direct connection, saves the cost and avoid the trouble
to connect external CTs, giving the unit a cost-effective and easy operation. Built-in interfaces
provides pulse and RS485 Modbus RTU outputs. Configuration is password protected.
Unit Characteristics
The Unit can measure and display:
Line voltage and THD% (total harmonic distortion) of all phases
Line Frequency
Currents, Current demands and current THD% of all phases
Power, maximum power demand and power factor
Active energy imported and exported
Reactive energy imported and exported
The unit has password-protected set-up screens for:
Changing password
Supply system selection 1p2w, 3p3w,3p4w
Demand Interval Time(DIT)
Reset for demand measurements
Pulse output duration
Two pulse outputs indicates real-time energy measurement. An RS485 output allows remote
monitoring from another display or a computer.
RS485 Serial–Modbus RTU
This uses an RS485 serial port with Modbus RTU protocol to provide a means of remotely
monitoring and controlling the Unit.
Set-up screens are provided for setting up the RS485 port.
Pulse Output
This provides two pulse outputs that clock up measured active and reactive energy. The constant
of pulse output 2 for active energy is 400imp/kWh (unconfigurable), its width is fixed at 100ms.
The default constant of configurable pulse output 1 is 400imp/kWh, default pulse width is
100ms.The configurable pulse output 1 can be set from the set-up menu.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Start-up Screens
1
The first screen lights up all display segments and
can be used as a display check.
2
The second screen indicates the firmware installed
in the unit and its build number.
*The build number(1.302.2019) is for reference
only. The actual build number changes according
to product requirements.
3
The interface performs a self-test and indicates
the result if the test passes.
After a short delay, the screen will display active energy measurements.
Measurements
The buttons operate as follows:
1
Selects the Voltage and Current display
screens
In Set-up Mode, this is the “Left” or “Back”
button.
2
Select the Frequency and Power factor
display screens
In Set-up Mode, this is the “Up” button
3
Select the Power display screens
In Set-up Mode, this is the “Down” button
4
Select the Energy display screens
In Set-up mode, this is the “Enter” or “Right”
button

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Voltage and Current
Each successive pressing of the button selects a new range:
1-1
Phase to neutral voltages(3p4w)
1-2
Phase to neutral voltages(3p3w)
2
Current on each phase
3-1
Phase to neutral voltage THD%(3p4w)
3-2
Phase to neutral voltage THD%(3p3w)

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
4
Current THD% for each phase
Frequency and Power Factor and Demand
Each successive pressing of the button selects a new range:
1
Frequency and Power Factor (total)
2
Power Factor of each phase
3
Maximum Power Demand
4
Maximum Current Demand

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Power
Each successive pressing of the button select a new range:
1
Instantaneous Active Power in kW
2
Instantaneous Reactive Power in kVAr
3
Instantaneous Volt-amps in KVA
4
Total kW, kVArh, kVA
Energy Measurements
Each successive pressing of the button selects a new range:
1-1
Imported active energy in kWh

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
1-2
Exported active energy in kWh
2-1
Imported reactive energy in kVArh
2-2
Exported reactive energy in kVArh
3-1
Total active energy in kWh
3-2
Total reactive energy in kVArh
Set-up
To enter set-up mode, pressing the button for 3 seconds, until the password screen
appears.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Setting up is password-protected so you must enter the correct password (default ‘1000’) before
processing. If an incorrect password is entered, the display will show: PASS Err
To exit setting-up mode, press repeatedly until the measurement screen is restored.
Set-up Entry Methods
Some menu items, such as password, require a four-digit number entry while others, such as
supply system, require selection from a number of menu options.
Menu Option Selection
1) Use the and buttons to select the required item from the menu. Selection
does not roll over between bottom and top of list.
2) Press to confirm your selection.
3) If an item flashes, then it can be adjusted by the and buttons. If not, there
maybe a further layer.
4) Having selected an option from the current layer, press to confirm your selection. The
SET indicator will appear.
5) Having completed a parameter setting, press to return to a higher menu level. The SET
indicator will be removed and you will be able to use the and buttons for further
menu selection.
6) On completion of all set-up, press repeatedly until the measurement screen is restored.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Number Entry Procedure
When setting up the unit, some screens require the entering of a number. In particular, on entry to
the setting up section, a password must be entered. Digits are set individually, from left to right.
The procedure is as follows:
1) The current digit to be set flashes and is set using the and buttons.
2) Press to confirm each digit setting. The SET indicator appears after the last digit has
been set.
3) After setting the last digit, press to exit the number setting routine.
Change Password
1
Use the and to choose the
change password option.
2-1
Press the to enter the change password
routine. The new password screen will appear with
the first digit flashing.
2-2
Use and to set the first digit and
press to confirm your selection. The next
digit will flash.
2-3
Repeat the procedure for the remaining three
digits

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
2-4
After setting the last digit, SET will show.
Press to exit the number setting routine and return to the Set-up menu. SET will be
removed.
DIT Demand Integration Time
This sets the period in minutes over which the current and power readings are integrated for
maximum demand measurement. The options are: 0, 5, 8, 10, 15, 20, 30, 60 minutes
1
From the set-up menu, use and
buttons to select the DIT option. The screen will
show the currently selected integration time.
2-1
Press to enter the selection routine.
The current time interval will flash.
2-2
Use and buttons to select the
time required.
2-3
Press to confirm the selection. SET
indicator will appear.
Press to exit the DIT selection routine and
return to the menu.
Backlit Set-up

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
1
The backlit lasting time is settable.
Default lasting time is 60minutes.
For example, if it’s set as 5, the backlit will be off in
5minutes from the last time operation on the
meter.
2
Press to enter the selection routine. The
current time interval will flash
The options can be:
0(always on),5,10,30,60,120minutes
Use and buttons to select the time interval. Press to confirm the
set-up.
Supply System
Use this section to set the type of electrical system.
1
From the Set-up menu, use and
buttons to select the System option. The screen
will show the currently selected system type.
2-1
Press to enter the selection routine. The
current selection will flash
2-2
Use and buttons to select the
required system option: 1P2(W),3P3(W) ,3P4(W)

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
2-3
Press to confirm the selection. SET
indicator will appear.
Press to exit the system selection routine and return to the menu. SET will disappear and
you will be returned to the main Set-up Menu.
Pulse Output
This option allows you to configure the pulse output 1. The output can be set to provide a pulse for
a defined amount of energy active or reactive.
Use this section to set up the pulse output for:
Total kWh/ Total kVArh
Import kWh/Export kWh
Import KVArh/Export KVArh
1
From the Set-up menu, use and
buttons to select the Pulse output option.
2-1
Press to enter the selection routine. The
unit symbol will flash.
2-2
Use and buttons to choose the
selection .
Press to confirm the setting and press to return to the main set up menu.󳆬
Pulse Rate

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Use this to set the energy represented by each pulse. Rate can be set to 1 pulse per
dFt/0.01/0.1/1/10/100kWh/kVArh.
(It shows 1 pulse = 10kWh/kVArh)
1
From the Set-up menu, use and
buttons to select the Pulse Rate option.
2
Press to enter the selection routine. The
current setting will flash.
Note: When it’s dFt,
it means 2.5Wh/VArh
Use and buttons to choose pulse rate. On completion of the entry procedure,
press to confirm the setting and press to return to the main set up menu.
Pulse Duration
The energy monitored can be active or reactive and the pulse width can be selected as
200, 100(default) or 60ms.
(It shows pulse width of 200ms)

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
1-1
From the Set-up menu, use and
buttons to select the Pulse width option.
1-2
Press to enter the selection routine. The
current setting will flash.
Use and buttons to choose pulse width. On Completion of the entry procedure,
press to confirm the setting and press to return to the main
set -up menu.
Communication
There is a RS485 port can be used for communication using Modbus RTU protocol. For Modbus
RTU, parameters are selected from Front panel.
RS485 Address
(The range is from 001 to 247)
1
From the Set-up menu, use and
buttons to select the Address ID.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
2-1
Press button to enter the selection
routine. The current setting will be flashing.
2-2
Use and buttons to choose
Modbus Address(001 to 247)
On completion of the entry procedure, press button to confirm the setting and press
button to return the main set-up menu.
Baud Rate
1
From the Set-up menu, use and
buttons to select the Baud Rate option.
2-1
Press to enter the selection routine. The
current setting will flash.
2-2
Use and buttons to choose Baud
rate 2.4k. 4.8k, 9.6k, 19.2k, 38.4k
On completion of the entry procedure, press to confirm the setting and press to

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
return to the main set-up menu.
Parity
1
From the Set-up menu, use and
buttons to select the Parity option.
2-1
Press to enter the selection routine. The
current setting will flash.
2-2
Use and buttons to choose Parity
(EVEN / ODD / NONE)
On Completion of the entry procedure, press to confirm the setting and press to
return to the main set-up menu.
Stop Bits
1
From the Set-up menu, use and
buttons to select the Stop Bit option.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
2-1
Press to enter the selection routine. The
current setting will flash.
2-2
Use and buttons to choose Stop
Bit (2 or 1)
On completion of the entry procedure, press to confirm the setting and press to
return to the main set up menu.
Note: Default is 1, and only when the parity is NONE that the stop bit can be changed to 2.
CLR
The meter provides a function to reset the maximum demand value of current and power.
1
From the Set-up menu, use and
buttons to select the reset option.
2
Press to enter the selection routine. The
MD will flash.
Press to confirm the setting and press to return to the main set up menu.
Specifications
Measured Parameters
The unit can monitor and display the following parameters of a single phase two wire(1p2w), three
phase three wire(3p3w) or four phase four wire(3p4w) supply.

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Voltage and Current
Phase to neutral voltages 100 to 289V a.c. (not for 3p3w supplies)
Voltages between phases 173 to 500V a.c. (3p supplies only)
Percentage total voltage harmonic distortion (THD%) for each phase to N ( not for 3p3w supplies)
Percentage voltage THD% between phases (three phase supplies only)
Current THD% for each phase
Power Factor and Frequency and Max. Demand
Frequency in Hz
Instantaneous power:
Power 0 to 99999 W
Reactive Power 0 to 99999 VAr
Volt-amps 0 to 99999 VA
Maximum demanded power since last Demand reset Power factor
Maximum neutral demand current, since the last Demand reset (for 3p4w supply only)
Energy Measurements
Imported active energy 0 to 999999.99 kWh
Exported active energy 0 to 999999.99 kWh
Imported reactive energy 0 to 999999.99 kVArh
Exported reactive energy 0 to 999999.99 kVArh
Total active energy 0 to 999999.99 kWh
Total reactive energy 0 to 999999.99 kVArh
Measured Inputs
Voltage inputs through 4-way fixed connector with 25mm²stranded wire capacity. single phase
two wire(1p2w), three phase three wire(3p3w) or four phase four wire(3p4w) unbalanced. Line
frequency measured from L1 voltage or L3 voltage.
Accuracy
Voltage 0·5% of range maximum
Current 0·5% of nominal
Frequency 0·2% of mid-frequency
Power factor 1% of unity (0.01)
Active power (W) ±1% of range maximum
Reactive power (VAr) ±1% of range maximum
Apparent power (VA) ±1% of range maximum
Active energy (Wh) Class 1 IEC 62053-21
Class B EN50470-1/3
Reactive energy (VArh) Class 2 IEC 62053-23
Response time to step input 1s, typical, to >99% of final reading, at 50 Hz.
Interfaces for External Monitoring
Three interfaces are provided:

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
RS485 communication channel that via protocol remotely.
Pulse output(Pulse 1) indicating real-time measured energy.(configurable)
an Pulse output(Pulse 2) 400imp/kWh(non-configurable)
The Modbus configuration (Baud rate etc.) and the pulse output assignments (kW/kVArh,
import/export etc.) are configured through the Set-up screens.
Pulse Output
The unit provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total /
import/export kWh or kVarh.
The pulse constant can be set to generate 1 pulse per:
dFt = 2.5 Wh/VArh
0.01 = 10 Wh/VArh
0.1 = 100 Wh/VArh
1 = 1 kWh/kVArh
10 = 10 kWh/kVArh
100 = 100 kWh/kVArh
Pulse width: 200/100/60ms
Pulse output 2 is non-configurable. It is fixed up with active kWh. The constant is 400imp/kWh.
RS485 Output for Modbus RTU
For Modbus RTU, the following RS485 communication parameters can be configured from the
Set-up menu:
Baud rate 2400, 4800, 9600, 19200, 38400
Parity none (default)/odd/even
Stop bits 1 or 2
RS485 network address nnn – 3-digit number, 001 to 247
Modbus™ Word order Hi/Lo byte order is set automatically to normal or reverse. It cannot
be configured from the set-up menu.
Reference Conditions of Influence Quantities
Influence Quantities are variables that affect measurement errors to a minor degree. Accuracy is
verified under nominal value (within the specified tolerance) of these conditions.
Ambient temperature 23°C ±1°C
Input frequency 50Hz(MID)
50 or 60Hz ±2%(non-MID)
Input waveform Sinusoidal (distortion factor < 0·005)
Magnetic field of external origin Terrestrial flux
Environment
Operating temperature 3K6(-25°C to +55°C*),Default
3K7(-40°C to +70°C*)
Storage temperature -40°C to +70°C*
Relative humidity 0 to 90%, non-condensing

EASTRON SDM630-Modbus V2 USER MANUAL V1.5
2020 EASTRON ELECTRONIC. ALL RIGHTS RESERVED. Web: www.eastron.com.cn
Altitude Up to 2000m
Warm up time 5S
Vibration 10Hz to 50Hz, IEC 60068-2-6, 2g
Shock 30g in 3 planes
* Maximum operating and storage temperatures are in the context of typical daily and seasonal variation.
Dimensions
Wiring Guide