Eastron SDM630MCT Series User manual

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
SDM630MCT Series
DIN Rail Energy Meter for Single and Three Phase Electrical Systems
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
1/5A CT connection
Better than Class 0.5S
USER MANUAL 2019
2019 V1.1

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 1 -
Introduction
This document provides operating, maintenance and installation instructions. The unit measures
and displays the characteristics of single phase two wires (1p2w), Single phase(split-phase) three
wire(1p3w), 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 60minutes. In order to measure energy, the unit requires voltage and current
inputs in addition to the supply required to power the product. The requisite current input(s) are
obtained via current transformers(CT).
This meter can be configured to work with a wide range of CTs, giving the unit a wide range of
operation. Built-in interfaces provides pulse and RS485 Modbus RTU outputs. Configuration is
password protected.
This unit can be powered from a separate auxiliary (AC or DC) supply. Alternatively it can be
powered from the monitored supply, where appropriate.
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, 1p3w,3p3w,3p4w
Demand Interval time
Reset for demand measurements
Pulse output duration
Two pulse output indicates real-time energy measurement. An RS485 output allows remote
monitoring from another display or a computer.
Current Transformer Primary Current
The unit can be configured to operate with CT ratio between primary current and secondary
current. The secondary CT has two options: 1A/5A
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.

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 2 -
Pulse output
This provides two pulse outputs that clock up measured active and reactive energy. The constant
for active energy is 3200imp/kWh(Terminals 11&12). The pulse width for pulse 1(Terminals 9&10)
can be set from the set-up menu.
Description of under-range and over range display
1, Display Description of Under-range and Over-range parameters:
On the voltage, current and power, etc. displays, when the parameters mesured are under-range,
the display will show “0”. when the parameters are over-range, two interfaces will be shown by
turns. One is the current measured value and the other is with “-“ symbol.
For example:
If the voltage is overrange, the display of voltage will show below two interfaces in rotation:
Interface 1
Interface 2
2, Explanation of the threshold of Underrange and Overrange:
Threshold of Under-range：
A, Voltage: < 30V (for L-N / L-L)；
B, Current: < 0.004A (for L-N / L-L)；
C, Power: < 1W(VAr)(VA) (for L-N / L-L)；
Threshold of Over-range：
A, Voltage: > 305V (for L-N)；Voltage: > 530V (for L-L)；
B, Current: > 6A (for L-N / L-L)；
C, Power: > 1830W(VAr)(VA) (for L-N)；Power: > 3180W(VAr)(VA) (for L-L)；
Note: The threshold value of under-range and over-range is the secondary value of the meter. CT
and PT ratio are not included.
For example:
if the CT ratio is 10, it is under-range when the current is less than 0.04A (=0.004*10); It is
over-range when the current is over 60A (=6*10).

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 3 -
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.
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
Voltage and Current
Each successive pressing of the button selects a new range:

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 4 -
1
Phase to neutral voltages
2
Phase to neutral voltages
3 Current on each phase
4
Neutral current
5-1
Phase to neutral voltage THD%(3p4w)
5-2
Phase to neutral voltage THD%(3p3w)

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 5 -
6
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 Current Demand
4
Maximum Power Demand

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 6 -
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, Only SDM630MCT display

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 7 -
1
Total active energy in kWh
2
Total reactive energy in kVArh
3
Imported active energy in kWh
4
Exported active energy in kWh
5 Imported reactive energy in kVArh
6
Exported reactive energy in kVArh

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 8 -
2, Only SDM630MCT-2T display
1
Total active energy in kWh
2
T1 Total active energy in kWh
3
T2 Total active energy in kWh
4 Total reactive energy in kVArh
5
T1 Total reactive energy in kVArh
6
T2 Total reactive energy in kVArh

EASTRON SDM630MCT User Manual
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China.
Tel: [phone] Fax: [phone] Web: www.eastron.com.cn
- 9 -
3, Only SDM630MCT-MT display
1
Total active energy in kWh
2
T1 Total active energy in kWh
3
T2 Total active energy in kWh
4
T3 Total active energy in kWh
5
T4 Total active energy in kWh