Eastron SDM54-M Manual de Usario

Eastron Equipo de medición SDM54-M

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1. Introduction

The SDM54 measures and displays the characteristics

of single phase two wires (1p2w) and three phase four

wires(3p4w) supplies, including voltage, frequency, current,

power, power factor, active and reactive energy, imported

or exported.

Energy is measured in terms of kWh and kVArh. Maximum

demand on power and current can be measured over

preset periods of up to 60 minutes. SDM54 supports max.

100A direct loads per phase, with dual tariff management

availability. The meter is designed for DIN-rail mounting,

with IP51 front protection. The meter is optionally

equipped with pulse outputs, RS485 Modbus port or

M-bus port. Conﬁguration can also be done via keypad,

which is password protected.

1.1 Unit Characteristics

The SDM54 Series are smart three phase energy meters,

covering 3 models with following features and differences:

SDM54 series

Smart Three Phase Energy Meter

Model Measurements Outputs Tariff

Control

SDM54--2T

kWh, kVarh,

W, Var, VA, PF,

Hz, V,

2x Pulse

outputs; RS485

Modbus

Double

tariffs

SDM54-M A, Max.dmd.

Etc.

2x Pulse

outputs; RS485

Modbus

Single

tariff

SDM54-DI

kWh, kVarh,

W, Var, VA, PF,

Hz, V,

2x Digital inputs;

RS485 Modbus

Single

tariff

SDM54-MB-2T A, Max.dmd.

Etc.

2x Pulse

outputs; M-Bus

Double

tariffs

SDM54-MB

kWh, kVarh,

W, Var, VA, PF,

Hz, V,

2x Pulse

outputs; M-Bus

Single

tariff

SDM54-P A, Max.dmd.

Etc.

2x Pulse

outputs

Single

tariff

1.2 RS485 Serial–Modbus RTU

The RS485 serial port with Modbus RTU protocol provides

a means of remotely monitoring and controlling the unit.

Set-up screens are provided for setting up the RS485

port. D/LT645 protocol is optionally available on request.

1.3 M-Bus

The M-Bus port complying with EN13757-3 protocol

provides a means of remotely monitoring and controlling

the meter. Set-up screens are provided for setting up the

M-Bus port.

1.4 Pulse outputs

Two pulse outputs that clock up the 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.

1.5 Double Tariffs

The meter has double tariffs function for the cost allocation

management. There are two terminal to monitor voltage

input from external device. Once there are voltage

detected within 230V (80~120%), the energy will be

counted in another registers.

2. Start-up Screens

The interface performs

initial testing.

The second screen

indicates the software

version.

Meter serial number;

Modbus ID; Baudrate

info are provided.

After a short delay, the screen will display active energy

measurements.

3. Measurements

> Scroll the display for data-check.

> Change option at Set-up mode

> Exit the Set-up mode

> Set-up mode entry

> Conﬁrmation

3.1 Buttons

There are two buttons on the front panel.

3.2 Measured parameters

Each successive pressing of the button shows

different parameters measured:

Total kWh

Import kWh

Export kWh

Total kVarh

Import kVarh

Export kVarh

(Available in SDM54-2T

only)

Tariff 1’s active energy

Total kWh

Import kWh

Export kWh

The “_” under T1 means

tariff 1 is running at the

moment.

(Available in SDM54-2T

only)

Tariff 1’s reactive energy

Total kVarh

Import kVarh

Export kVarh

(Available in SDM54-2T

only)

Tariff 2’s active energy

Total kWh

Import kWh

Export kWh

(Available in SDM54-2T

only)

Tariff 2’s reactive energy

Total kVarh

Import kVarh

Export kVarh

L1-N Voltage

L2-N Voltage

L3-N Voltage

L1-2 Voltage

L2-3 Voltage

L3-1 Voltage

Frequency

L1 Current

L2 Current

L3 Current

Neutral Current

Total PF (Power Factor)

L1 PF

L2 PF

L3 PF

Total PF (Power Factor)

Max. Current Demand of

Max. Active Power

Demand of

Active Power

Reactive Power

Apparent Power

Active Power of

Reactive Power of

Apparent Power of

4. Set-up

Password is needed

be checked before any

further operation.

The default password

is 1000.

The left screen shows

the set-up menu of the

meter, including main,

communication, time,

and pulse.

System type: the

network type where the

meter is installed and

working.

Options: 3P4W(default),

3P3W, 1P3W, 1P2W.

Password: allows user to

set a new password.

Reset: to reset the max.

Dmd / DI

DMD: information of

current and active power.

DI: digital input counts

Com.: conﬁgure

the communication

parameters

Addr: communication

MODBUS Address,

range from 001~247

Baud: communication

baudrate Options:

2400~38400bps;

Default: 9600bps

Parity: Communication

Parity Options: None,

Even, Odd Default: None

Stop: Stop bit of

communication Options:

1 or 2

Default: 1

Time information setting

Backlight: to set the

backlight duration time

after button operation.

Options: on, off, 5, 10,

15, 30, 60, 120 minutes.

Default: 60 minutes

Scroll: automatic screen

scroll time interval.

Options: off, 5,10,15,

30,60 seconds.

Default: off

DMD: demand interval

time Options: 0, 5, 8, 10,

15, 20, 30, 60 minutes.

Default: 60 minutes

Pulse output 1 parameter

setting

The meter pulse output 1

is conﬁgurable.

Note: Pulse output 2 is

ﬁxed to

Type: the type of energy

that pulse output is

refer to.

Options: kWh; Imp-kWh;

Exp-kWh kVarh;

Imp-kVarh; Exp-kVarh

Default: Exp-kWh

Constant: Pulse output

constant Options: 1000;

100; 10; 1

Default: 400

Width: Pulse width

Options: 60,100,200mS

Default: 100mS

Keep pressing the button , the meter will get into

Set-up mode.

5. Speciﬁcations

5.1 Electrical speciﬁcations

• Power: self power supply

(via measured voltage)

• Consumption: <1W, 8VA

• Basic current: 10A

• Max. current : 100A

• Min. current: 0.5A

• Starting current : 0.02A

• Over-current: 30 x Imax for 0.01s

• L-N voltage: 100 to 289V a.c. (not for 3p3w

supplies)

• L-L Voltage: 173 to 500V a.c.

(3p supplies only)

• Frequency: 50Hz (MID version)

50/60Hz (non-MID version)

Accuracy

active energy Class 1(IEC62053-21)/Class

B(EN50470-3)

Reactive energy Class 2 (IEC62053-23)

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

5.2 Environmental speciﬁcations

• Operating temperature -25°C to +55°C

• Storage temperature -30°C to +80°C

• Relative humidity 0 to 90%, non-condensing

@40°C

• Altitude Up to 2000m

• Mechanical environment M2

• Electromagnetic environment E2

5.3 Output speciﬁcations

Three interfaces are available:

• Modbus RS485 port output ... (SDM54-M, SDM54-2T,

SDM54-DI)

• M-Bus port output ... (SDM54-MB, SDM54-MB-2T)

• two Pulse outputs

5.3.1 Modbus RS485 port output

Baud rate: 2400, 4800, 9600(default),

19200, 38400

Parity: none /odd/even

Stop bits: 1 or 2

RS485 address: 001 to 247

Response time: <80mS

Transmission distance: 1000m

5.3.2 M-Bus port output

Baud rate: 300, 600, 1200, 2400, 4800,

9600

Parity: even/odd

Stop bits: 1 or 2

M-Bus primary

address: 001 to 250

M-Bus Secondary

address: same as the serial number of the

meter.

5.3.3 Pulse Output

The unit provides two pulse outputs indicating real-time

measured energy. Pulse output 1 is conﬁgurable; Pulse

output 2 is ﬁxed with constant 400imp/kWh.. Both pulse

outputs are passive type.

Pulse output 1 is conﬁgurable. Default setting is

exp-kWh; 100mS, constant 400imp/kWh

Pulse output 2 is non-conﬁgurable. It is ﬁxed up with

active kWh. The constant is 400imp/kWh.

5.4 Safety and EMC

• Measurement category IEC 61010-1 CAT III

• Current input Direct connect

• Over-voltage category CAT III

• Dielectric withstand IEC 61010-1 double insulated

• Protective class II

• EMC IEC 61326-1:2013 ; IEC 61326-

2-3:2013

5.5 Mechanics speciﬁcations

• DIN rail dimensions 54x100x67.5mm(WxHxD)

• Mounting DIN Rail 35mm

• Ingress protection IP51 front panel (indoor)

• Material Self-extinguishing UL94 V-0

• Weight 265g

If you have any question, please feel free to contact our sales team. Tel: Fax: Email: +86-573-83698881 +86-573-83698883 sales@eastrongroup.com www.eastrongroup.com

Connection Data SDM54

Measurement connection Screw connection

Conductor cross section solid/

stranded/AWG 4-25mm2

Tightening torque 2.5Nm

Other connections (COM and Pulse) Screw connection

Conductor cross section solid/

stranded/AWG 0.5-1.5mm2

Tightening torque 0.4Nm

Warnings

Important Safety Information is contained in the

Maintenance section. Familiarize yourself with this

information before attempting installation or other

procedures. Symbols used in this document:

Risk of Danger: These instructions contain

important safety information. Read them before

starting installation or servicing of the equipment.

Caution: Risk of Electric Shock

User Manual

2022 V1.0

If you have any question, please feel free to contact our sales team. Tel: Fax: Email: +86-573-83698881 +86-573-83698883 sales@eastrongroup.com www.eastrongroup.com

6. Dimensions 7. Wiring diagram

• Three Phase Four Wires:

• Single Phase Two Wires:

• Other terminals

If you have any question, please feel

free to contact our sales team. Zhejiang

Eastron Electronic Co., Ltd.

No.1369, Chengnan Rd. Jiaxing, Zhejiang, 314001, China

Tel: +86-573-83698881

Fax: +86-573-83698883

Email: sales@eastrongroup.com

www.eastrongroup.com