ADTEK AEM-DRB User manual

AEM-DRB
Multi Circuit Power Meter(DIN rail)
Operation Manual
41454d445242-4d-454e-53-41, Rev 1.0
2021-02-26
*41454d445242-4d-454e-53-41*

II
Content
Chapter 1 Product Overview1
11 Foreword  1
12 Outward & Instructions  1
13 Warning & Criterion  2
Chapter 2 Specifications4
21 Electrical Spec  4
22 Communication Spec  5
23 Operation Interface  5
231 Interface Tree  6
24 Physical Dimensions  8
Chapter 3 Installation10
31 Installation Method  10
311 Environment  10
312 Remind  10
32 Basic Test  11
33 Wiring Instructions  12
331 Wiring Diagram  12
332 Communication Property  16
Chapter 4 Operations17
41 General Operations  17
411 Reading Measured Data  17
4111 Summary Search  17
4112 Metering Search  17
4113 Power Parameter Search  18
4114 Alarm Search  19
412 Data Clear & Reset  19
413 Power Meter Info Search  20
414 USER PASSWORD  20
415 General  20
4151 Wire System  20
4152 Voltage Transformer Setting  21
4153 Current Transformer Setting  21

III
4154 Branch Loop Voltage Phase Assign  22
4155 Modify Password  22
4156 Default Page  22
416 Communction  23
4161 Address  23
4162 Baudrate  23
4163 Parity  24
4164 IP Address  24
4165 Module Control  25
417 Pulse Output  25
4171 Test Pulse  25
4172 Target Loop  25
4173 Energy Type  26
4174 Pre-Divider  26
4175 High Time  26
418 Energy Unit  26
419 Date/Time  27
4191 Backlight Time  27
4192 Date  27
4193 Time  27
4194 Operation Hour Reset  27
4195 Running Hour Reset  28
4110 Demand  28
41101 Mode  28
41102 Period  28
4111 Input/Output  28
41111 Digital Input  28
41112 Relay Output  29
4112 Initial  30
42 Measurement algorithm  31
421 Harmonic  31
422 Demand  31
4221 Sliding Block  31
4222 Fix Block  32
43 Block transfer function  32

IV
44 Data Logging function  32
441 Data logging function setting  33
442 Data log read  36
45 Time of use (TOU) Function  37
451 Season Setting  37
452 TOU Season Format  38
453 Schedule Setting  38
454 Segment Setting  38
455 Tariff Setting  38
456 Holiday Setting  38
457 Holiday schedule  39
458 Weekend Schedule  39
459 Demand  39
4510 TOU Settlement  39
Chapter 5 Message of Abnormal Operations40
51 Common malfunction analysis  40
511 Power meter dosen't work after it's electrified 40
512 Voltage or current reading in incorrect  40
513 Power or power factor reading is incorrect, but 
voltage and current are correct  40
514 RS-485 communication is unusual  40

1
Chapter 1 Product Overview
1.1 Foreword
Thank you for using this product, this meter interface installation manual provides
information on the AEM-DRB meter. The AEM-DRB multi-function control smart meter is used
for power distribution (electric power system) monitoring and control in various industries.
Suitable for measuring CAT II power system.
Before using, please carefully read this manual to ensure that it is used correctly. The
following matters must be observed before you have read this manual:
• The installation environment must be free of moisture, corrosive gases and flammable
gases.
• When wiring, please follow the wiring diagram to explain the construction.
• The grounding project must be implemented, and the grounding must be carried out in
accordance with the current state.
• Do not dismantle the meter or change the wiring while power is on.
• Do not touch the power supply during power-on operation to avoid electric shock.
• If you still have problems using it, please contact your dealer or our customer service
center. Due to the constant improvement of the product, please contact your dealer or
the website (http://www.adtek.com.tw) to download the latest version when the content
specifications are corrected.
1.2 Outward & Instructions
The AEM-DRB has a liquid crystal display screen that displays five measurement data
per page

2
1.3 Warning & Criterion
• Installation attention
• Wiring attention
• Operation attention
• Beware of potential hazards. Wear safety equipment properly
when operating this device and follow safety standards and related
regulations for operating electric equipment.
• Installation of this device should be performed by licensed
professionals. Perform operations only after carefully reading this
manual.
• Operate this device according to this manual to prevent improper
operation that may cause damage and bodily harm.
• This device should be installed in a properly-insulated fire-
protection cabinet.
• When using the equipment, potential transformer for secondary
side is prohibited short circuit.
• When using the equipment, current transformer must not be under
an open circuitaa.
• When using the equipment, please make sure current transformer
for secondary side has been locked on the equipment. To avoid the
main trunk line falling off during use, causing equipment damage.
• When used with a current transformer (CT), please use a current
transformer (CT) that meets UL2808 in the United States/Canada,
and use a current transformer (CT) that meets the requirements of
IEC61869-2 or AHJ in other countries to ensure use Safety.
• Do not operate alone.
• Power should be disconnected before installing, checking, or
maintaining this device.
• You must use a voltage checking device with the correct rated
values to ensure that all power has been disconnected.
• Before connecting power, check that all mechanical parts, covers,
and doors have been returned to their original states. Make sure
there are no parts or tools left inside the device.

3
• Wiring method
• Maintenance and inspection
• When measuring current, a current transformer must be used with
the device.
• When the measured voltage exceeds the rated range (line voltage
of 35~600V AC L-L, phase voltage: 20~350V AC L-N) for this
device, a potential transformer must be used with the device.
• For the wrong forced pull-out of the wire, re-check the connecting
wire and start again.
• Disconnect all wiring (or power off all other circuits) that may
present potentially hazardous voltage levels to the unit when
cleaning the power meter. Ensure to use a dry and soft cotton cloth
to wipe the surface of the power meter carefully.

4
Chapter 2 Specifications
2.1 Electrical Spec.
Accuracy Class
Quantity of
electricity
Voltage 0.2 %
Electrical energy
Active energy 0.5 %
Current 0.2 % Reactive energy 0.5 %
Active power 0.5 % Apparent energy 0.5 %
Reactive power, apparent power 0.5 % Total harmonics in current 1.0 %
Power Factor 0.5 % Total harmonics in voltage 1.0 %
Active power demand 0.5 % Frequency accuracy 0.1 %
Apparent power demand 0.5 % Reactive power demand 0.5 %
Input
Wiring
method
Single-phase two-wire, 1 CT Three-phase three-wire,
Δ Delta-connection, 2 CT, 2 PT
Single-phase three-wire, 2 CT Three-phase three-wire,
Δ Delta-connection, 1 CT, 2 PT
Three-phase three-wire,
Δ Delta-connection, 3 CT, No PT
Three-phase four-wire,
Y-connection, 3 CT, 3 PT
Three-phase three-wire,
Δ Delta-connection, 2 CT, No PT
Three-phase four-wire,
Y-connection, 1 CT, 3 PT
Three-phase three-wire,
Δ Delta-connection, 1 CT, No PT
Three-phase four-wire,
Y-connection, 3 CT, No PT
Three-phase three-wire,
Δ Delta-connection, 3 CT, 2 PT
Three-phase four-wire,
Y-connection, 1 CT, No PT
Voltage Line voltage: ≦ 600 VAC （L-L）
Phase voltage: ≦ 400 VAC （L-N）
Current 1A / 5A / 333mV
Frequency 45~65 Hz
Operation Measuring Category：CAT II
Alarm Alarm parameters selectable 12 kinds of alarms selectable
Max/Min Main loop: 44/40 Max/Min, Time stamp
Sub loop: 40 Max, Time stamp.
Power Functional Range 85~264 VAC (Power Consumption 15VA),
100~300 VDC (Power Consumption 5W)
Frequency Working Power Frequency 50/60 Hz
Communication
Interface RS-485 Interface
MODBUS-RTU
Baud Rate 1200 / 2400 / 4800 / 9600 / 19200
/ 38400 / 57600 / 115200 bps
Exterior Dimensions (W x H x D) 118 * 77* 199 mm
IP Protections IP20

5
Environment
Operating Temperature 0℃ ~ +60℃ (32 ℉ ~ +140 ℉ )
Storage Temperature - 10 ℃ ~ +70 ℃
(14 ℉ ~ +158 ℉ )
Relative Humidity 5~ 95 % RH Non-condensing
Altitude Below 2000 meters
Display
Screen display type LCD display
Background light White backlight
Communication
RS-485 MODBUS RTU
Baud Rate 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps
A. Title F. DOWN key
B. Display area G. COM light
C. ENTER key H. POWER light
D. LEFT key I. LOGGING light
E. UP key
Electromagnetic compatibility
Electrostatic discharge IEC 61000-4-2:2008
Immunity to radiated fields IEC 61000-4-3:2006+A1:2007+A2:2010
Immunity to fast transients IEC 61000-4-4:2012
Immunity to impulse waves IEC 61000-4-5:2014+A1:2017
Conducted immunity IEC 61000-4-6:2013/COR1:2015
Immunity to magnetic fields IEC 61000-4-8:2009
Immunity to voltage dips IEC 61000-4-11:2004/A1:2017
Radiated emissions FCC part 15 subpart B Class A
Conducted emissions FCC part 15 subpart B Class A
Harmonics emissions EN 61000-3-2:2014
Flicker emissions EN 61000-3-3:2013
2.2 Communication Spec.
2.3 Operation Interface

6
Button Name General Mode Configuration Mode
ENTER Menu key Confirm the input and return to the previous page
LEFT None Long press for 2 seconds to abandon input
or return to the previous page
UP Summary page switching key Select item or increase number
DOWN Summary page switching key Select item or decrease number
2.3.1 Interface Tree
Display UI interface tree

7
Setting UI interface tree

8
2.4 Physical Dimensions
Rear view:
Unit: mm

9
Output and Input
RS485 Communication Port:
Pulse Output:
Max Distance:1200M
Terminate Resistance:
120~300Ω/0.25W
(typical: 150Ω)
AC85~264V
EMC Filter 1A Fuse

10
Chapter 3 Installation
3.1 Installation Method
3.1.1 Environment
3.1.2 Remind
This product must be placed in the box when it is not in use. If it is not used for the time
being, in order to make the product conform to the warranty scope and future maintenance
of the company, please pay attention to the following matters during storage:
• Must be placed in a dust-free, dry place.
• The ambient temperature in the storage location must be kept in the range of -10 ℃ to
+70℃ (14 ℉ to 158 ℉ ).
• The relative humidity in the storage location must be kept in the range of 5% to 95%
without condensation.
• Keep the storage away from the environment containing corrosive gas and liquids.
• It is best to properly store in a rack or countertop.
• Suitable installation environments for this product include: places where there is no high
heat device; locations where there is no water droplets, vapors, dust, and oily dust;
places where there is no corrosion, flammable gas, liquids; and where there is no floating
dust and metal particles Places; Strong, vibration-free, electromagnetic noise-free places.
• Installation method must be in accordance with the regulations, or it could cause
malfunction.
• To make sure the cooling loop work well, when installing the electric meter, it is necessary
to keep sufficient space between the upper and lower side of the meter and the adjacent
items and baffles (wall) or it will cause poor heat dissipation.

11
3.2 Basic Test
Test Item Description
General Testing
• Heat sink holes should be avoided by foreign substances such as
oil, water or metal powder and should be prevented from falling into
the electric meter.
• If the electric meter is set up in a place where harmful gases or dust
are present, it shall prevent the intrusion of harmful gases and dust.
Pre-operation
(No control power
supply)
• Please insulate the connection part of the wiring terminal.
• The communication wiring should be correct, otherwise abnormal
actions may occur.
• Check for conductive or flammable objects such as screws or metal
plates inside the meter.
• When the electronic instrument used near the meter is subjected
to electromagnetic interference, adjust the instrument to reduce
electromagnetic interference.
• Please make sure the meter's supply voltage level is correct.
Pre-operation
(Control power
supplied)
• Make sure the communication with each device is normal.
• If the meter is abnormal, please contact your dealer or our customer
service center.

12
3.3 Wiring Instructions
3.3.1 Wiring Diagram
• Note
1. To avoid electric shock, do not change the wiring while the power is on.
2. Since the power meter does not have a power switch, be sure to install a circuit
breaker switch on the power cord of the meter.
3. Measuring Voltage: When the measuring voltage is higher than the rated specification
range that this equipment can carry, must use an external voltage transformer (PT).
4. Measuring current: Measuring the current requires the use of an external current
transformer (CT).
The recommended wiring material is as follows:
Terminal Block Wire gauge Screw torque Wire temperature
resistance
Branch loop current, RS-485 AWG 28 ~ 14 2.04 kgf.cm (0.2 N·m) 70℃ or higher
Aux. power, Measured
voltage, RO, DI, PO,
Main loop current
AWG 28 ~ 12 5.202 kgf.cm (0.5 N·m) 70℃ or higher
•  Wiring method
Main loop CT secondary is 5A signal
Single-phase two-wire, 1CT Single-phase three-wire, 2CT

13
Main loop CT secondary is 333mV signal
Single-phase two-wire, 1CT Single-phase three-wire, 2CT
Main loop CT secondary is 5A signal
Three-phase three-wire, Δ
Delta-connection, 3 CT, 2 PT
Three-phase three-wire, Δ
Delta-connection, 2 CT, 2 PT
Three-phase three-wire, Δ
Delta-connection, 1 CT, 2 PT
Main loop CT secondary is 333mV signal
Three-phase three-wire, Δ
Delta-connection, 3 CT, 2 PT
Three-phase three-wire, Δ
Delta-connection, 2 CT, 2 PT
Three-phase three-wire, Δ
Delta-connection, 1 CT, 2 PT

14
Main loop CT secondary is 5A signal
Three-phase three-wire, Δ
Delta-connection, 3 CT, No PT
Three-phase three-wire, Δ
Delta-connection, 2 CT, No PT
Three-phase three-wire, Δ
Delta-connection, 1 CT, No PT
Main loop CT secondary is 333mV signal
Three-phase three-wire, Δ
Delta-connection, 3 CT, No PT
Three-phase three-wire, Δ
Delta-connection, 2 CT, No PT
Three-phase three-wire, Δ
Delta-connection, 1 CT, No PT
Main loop CT secondary is 5A signal
Three-phase four-wire,
Y-connection, 3 CT, 3 PT
Three-phase four-wire,
Y-connection, 1 CT, 3 PT

15
Main loop CT secondary is 333mV signal
Three-phase four-wire,
Y-connection, 3 CT, 3 PT
Three-phase four-wire,
Y-connection, 1 CT, 3 PT
Main loop CT secondary is 5A signal
Three-phase four-wire,
Y-connection, 3 CT, No PT
Three-phase four-wire,
Y-connection, 1 CT, No PT
Main loop CT secondary is 333mV signal
Three-phase four-wire,
Y-connection, 3 CT, No PT
Three-phase four-wire,
Y-connection, 1 CT, No PT

16
• PO connection • RO connection • DI connection
Symbol
Description GND CT PT
Use the following symbol in the figure:
3.3.2 Communication Property
• Communication Specifications:
Max distance of
communication 1200 m Baud Rate 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
Max number of connected
stations 32 Data Bit 8
Communication Protocols MODBUS RTU Parity None、Odd、Even
Functional Code 03, 06, 10 Stop Bit 1、2
• Communication property of RS-485 must use twist-pair.
• The communication property D+ terminal of all devices needs to be connected to the
same twisted-pair , the D- terminal needs to be connected to another twist-pair, the
isolation net ground treatment, and the terminal equipment needs to be loaded with
terminal resistance.
• Please use 22~18 AWG at wiring terminal.