V-TAC VT-DTSU666 Smart Meter Instruction Manual

Instruction Manual for V-TAC models including: VT-DTSU666, VT-DTSU666 Smart Meter, Smart Meter, Meter

VT-DTSU666 SMART METER

Manual

Έξυπνος μετρητής τριφασικός 3X230/400V 5(80)A RS485 4P MID CHiNT - V-TAC Greece

Έξυπνος μετρητής τριφασικός 3X230/400V 5(80)A RS485 4P MID CHiNT - Renowatt

VT-DTSU666 SMART METER

File Info : application/pdf, 20 Pages, 1.77MB

11546

WEEE Number: 80133970
INSTRUCTION MANUAL
SMART METER

SKU
11546

MODEL
VT-DTSU666

MULTI-LANGUAGE MANUAL QR CODE
Please scan the QR code to access the manual in multiple languages.
IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT: SUPPORT@V-TAC.EU FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST DEALERS.
V-TAC EUROPE LTD. BULGARIA, PLOVDIV 4000, BUL.L.KARAVELOW 9B

Catalog 1. Brief Introduction ............................................................................................................................. 1 2. Working Principle............................................................................................................................. 2 3. Main Technical Performance & Parameters ..................................................................................... 3 4. Main function.................................................................................................................................... 6 5. Outline and installation size............................................................................................................ 12 6. Installation and operation manual................................................................................................... 13 7. Diagnosis, analysis and elimination for common faults ................................................................. 16 8. Transportation & Storage................................................................................................................ 17 9. Maintenance & Service................................................................................................................... 17

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 1, Total 18

1. Brief Introduction 1.1. Main application & applicable range
DTSU666 series three phase four wire and DSSU666 series three phase three wire electronic energy meter (din-rail) (hereinafter referred to as the "instrument") is designed based on power monitoring and energy metering demands for electric power system, communication industry, construction industry, etc. as a new generation of intelligent instrument combining measurement and communication function, mainly applied into the measurement and display for the electric parameters in the electric circuit including three voltage, three current, active power, reactive power, frequency, positive& negative energy, four-quadrant energy, etc. Adopting the standard DIN35mm din rail mounting and modular design, it is characterized with small volume, easy installation and easy networking, widely applied into the internal energy monitoring and assessment for industrial and mining enterprises, hotels, schools, large public buildings.
Complied standards: IEC 61010-1:2010Safety requirements for electrical equipment for measurementcontrol and laboratory use Part1:General requirements IEC 61326-1:2013 Electrical equipment for measurementcontrol and laboratory use EMC requirements Part1:General requirements 1.2. Product Features 1) Characterized with positive and reverse active power, combined active power, combined reactive power, four quadrant reactive power metering and storage function with combination mode character can be set.

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 2, Total 18

2) RS485 communication interface, easy to exchange data with outside;

3) Adopting the standard DIN35mm din rail mounting and modular design, it is characterized with

small volume, easy installation and easy networking.

1.3. Product Model

Table 1 product model and specification

Model

voltage V

DTSU666 3×230/400

DSSU666

3×400

Current A 1.5(6)A
5(80)A
1.5(6)A
5(80)A

Impulse constant imp/kWh imp/kvarh

6400

400

6400

400

Accuracy class
Active Class 0.5S, Reactive Class 2 Active Class 1, Reactive
Class 2 Active Class 0.5S, Reactive Class 2 Active Class 1, Reactive
Class 2

Note1.5(6)A is Connection through current transformers, 5(80)A is direct access.

1.4. Temperature range

Regulated working temperature range: -10+45

Limited working temperature range: -25+75 Relative humidity(Annually average):75 Atmospheric pressure: 63.0kPa106.0kPa( altitude 4km and below), excepting the requirements

for special orders.

2. Working Principle

2.1. Working Principle

The instrument are composed of high accurately integrated circuit specially for measurement

(ASIC) and managing MCU, memory chip, RS485 communication module, etc.

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 3, Total 18

Figure 1 Working principle block diagramFigure 1

2.2. Principle for the main function module The special metering integrated circuit (ASIC) integrated six load two order - type of A/D

conversion, please take the digital signal processing measured by the voltage circuit as well as all the

power, energy, effective values, power factor and frequency. This metering chip can measure the active

power, reactive power, apparent power, active energy, reactive power, apparent energy of each phase

and combined phase, and at the same time measuring current, voltage effective values, power factor,

phase angle, frequency and other parameters, entirely satisfying the needs of power meter. The chip

provides an SPI interface, convenient for metering parameters as well as parameter calibration between

the management MCU.

3. Main Technical Performance & Parameters

3.1. limit of error caused by the current augment

Table 2 The limit value of the active percentage error of meters on balanced load

Meters for
Connection through current transformers

Value of current
0.01InI0.05In 0.05InIImax 0.02InI0.1In 0.1InIImax

Percentage error limits

Power factor

for meters of class

0.5S

Class 1 Class 2

±1.0

±1.5

±2.0

±0.5

±1.0

±1.2

0.5L0.8C

±1.0

±1.5

±2.0

0.5L0.8C

±1.0

±1.2

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 4, Total 18

0.05IbI0.1Ib

±1.5

±2.0

Direct connection Note

0.1IbIImax

±1.0

±1.2

0.01IbI0.2Ib

0.5L0.8C

±1.5

±2.0

0.2IbIImax

0.5L0.8C

±1.0

±1.2

Insecondary rated current of the current transformer; Ibcalibrated current of the meter; L:inductiveCcapacitive

Table 3 The limit value of the reactive percentage error of meters on balanced load

Value of current

Direct connection
0.05Ib I 0.1Ib 0.1Ib I Imax 0.1Ib I 0.2Ib 0.2Ib I Imax 0.2Ib I Imax

Connection through current transformers 0.02In I 0.05In
0.05In I Imax 0.05In I 0.1In 0.1In I Imax 0.1In I Imax

sin inductive or capacitive
1 1 0.5 0.5 0.25

Percentage error limits for meters of class Class 2
2.5 2.0 2.5 2.0 2.5

Table 4 The limit value of the reactive percentage error of meters on balanced load

Value of current

Direct

Connection

Power factor

Percentage error limits for meters of class
0.5S Class 1 Class 2

connection

through

0.1 Ib I Imax 0.05In I Imax

±0.6 ±2.0

±3.0

0.2Ib I Imax

0.1In I Imax

0.5L

±1.0 ±2.0

±3.0

Table 5 The limit value of the reactive percentage error of meters on imbalanced load

Value of current

Direct connection

Power factor

Percentage error limits for meters of class
Class 2

0.1 Ib I Imax 0.05In I Imax

±3.0

0.2Ib I Imax 0.1In I Imax

0.5

±3.0

3.2. Starting and no-load condition

3.2.1. Starting

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 5, Total 18

Under the power factor of 1.0 and started current, the instrument can be started and continuously

measure (for multiple phase instrument, it will bring balanced load). If the instrument is designed

based on measurement for dual directional energy, then it is applicable for each direction of energy.

Table 6 start current

Meters for
Direct connection Connection through current transformers

Class of meter

0.5S

0.004Ib 0.005Ib

0.001Ib 0.002Ib 0.003Ib

Power factor 1 1

3.2.2. Test of no-load condition

When the voltage is applied with no current flowing in the current circuit, the test output of the

meter shall not produce more than one pulse.

For this test, the current circuit shall be open-circuit and a voltage of 115 % of the reference

voltage shall be applied to the voltage circuits.

The minimum test period t shall be

600 106

[min]

I max

for meters of class 0.5S or 1

480 106

[min]

I max

for meters of class 2

k is the number of pulses emitted by the output device of the meter per kilovarhour(imp/kvarh);

m is the number of measuring elements;

Un is the reference voltage in volts;

Imax is the maximum current in amperes.

3.3. Electrical parameters

Table 7 Electrical parameters

Regulated operating voltage range Extended operating voltage range
Power consumption of voltage
Power consumption of current
Data storage time after power interruption

0.9Un1.1Un 0.8Un1.15Un 1.5W 6VA Ib10A 0.2VA Ib10A 0.4VA
10 years

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 6, Total 18

4. Main function 4.1. Displayed function
From the displayed interface, the electrical parameter and energy data are all primary side data (that is, the multiplied by current and voltage ratios). The energy measuring value will be displayed seven bits, with the displaying range from 0.00kWh to 9999999MWh.

Figure 2 display

Table 8 Display interface

No.

Display interface

Instruction No.

Display interface

Instruction

Combined

Phase B

active energy 11

current

=10000.00kWh

=5.001A

Positive active

Phase C

energy

current

=10000.00kWh

=5.002A

Combined

Reserve active

phase

energy

active

=2345.67kWh

power

=3.291kW

Phase A

active

Protocol:

power

DT/L645-2007

=1.090kW

address =

Phase B

000000000001

active power

=1.101kW

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 7, Total 18

Phase C

active

Protocol: 16

power

MdoBus-RTU;

=1.100kW

address =001

Combined

Baudrate=9600

phase

None parity, 2

power

stop bits

factor

PFt=0.500

phase A

Phase A

power

voltage

factor

=220.0V

PFt=1.000

Phase B

power

voltage

factor

=220.1V

PFt=1.000

phase A

Phase C

power

voltage

factor

=220.20V

PFt=-0.500

NOTECombined active energy = Positive active energy - Reserve active energy

4.2. Programming function

4.2.1. Programming function

Parameter Value range 19999
0.1999.9 1645;

Table 9 Programming Parameter
Description Current ratio, used for setting the input loop current ratio: When the current is connected to the line via the transformer, Ct=the rated current of the primary loop / the rated current of the secondary circuit; When the current is directly connected to the line, Ct shall be set as 1. Voltage ratio, used for setting the voltage ratio of the input loop; When the voltage is connected to the line via the transformer, Pt= the rated voltage of the primary loop / the rated voltage of the secondary circuit; When the voltage is directly connected to the line, Pt shall be set as 1.0. Settings for communication stop bit and Parity bits

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 8, Total 18

2n.2; 3n.1; 4E.1; 5O.1;
01.200 12.400 24.800 39.600 1247 0n.34 1n.33
0:no1:E 0:P1:Q
2:S 030
030

1Factory mode 2: None parity, 2 stop bits, n.2; 3: None parity, 1 stop bit, n.1; 4: Even parity, 1 stop bit, E.1; 5: Odd parity, 1 stop bit, O.1; Communication baud rate 01.200 bps 12.400 bps 24.800 bps 39.600 bps Communication address Option for wiring mode: 0n.34 represents three phase four wire; 1n.33 represents three phase three wire. The setting is 1, representing the allowed instrument energy data clearance, which will be zero reset after clearing. Pulse output: 0active energy pulse; 1: reactive energy pulse; 2Others. Display in turns(second) 0Timely display 130Time interval of actual display. Backlight lighting time controlminutes 0Normally light 130backlight lighting time without button operation

4.2.2. Programming operation

Button description: "SET" button represents "confirmation", or "cursor shift" (when input digits),

"ESC" button represents "exit", "" (" ") button represents "add". The input code is (default 701).

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 9, Total 18

Figure 3 Setting examples for current and potential transformer ratio

Figure 4 Setting examples for communication address and Baud Rate
When input digits, " " can be used as cursor " "motion button; " "is "add" button, " "is Exit the programming operation interface or switch to the character interface from digit modification interface, add from the beginning after setting the digit to the maximum value. 4.3. Communication function
Characterized with a RS485 communication interface, the baud rate can be changed between 1200bps, 2400bps, 4800bps and 9600bps. It conforms to DL/T645-2007<the communication protocol of the multifunction energy meters> or ModBus-RTU protocol requirements.
Factory default communication parameters is DL/T 645-2007 protocol, the default baud rate is 2400bps, with the calibration bit and stop bit to be E.1 and instrument address (please see instrument factory number or crystal display screen).

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 10, Total 18

Customized communication parameter is ModBus-RTU protocol, the baud rate is 9600bps, with

the calibration bit and stop bit to be n.1, and the instrument address to be 1. The following table is

the common ModBus protocol address table, can be asked for specified communication protocol by

calling. ModBus_RTU protocol read command is 03H, write command is 10H.

Table 10 ModBus protocol address table

Parameter Parameter address code

Instructions of parameters

Data type

Data length Word

Read Write

Keyboard parameters (specific parameters see the instructions of programming parameters, the actual value with (*) parameter communication parameter value × 0.1

0000H 0001H

REV. UCode

Version No. Programming code codE(19999)

16 bit with

R/W

Signed char

16 bit with

R/W

0002H

ClrE

Power reset CLr.E(1:energy clear)

Signed char 1

R/W

0003H

net

Network selection (0:three phase four wire,1:three phase three wire)

16 bit with

R/W

0006H

Current transformer rate IrAt(19999)

Signed char 1

R/W

0007H

Voltage transformer rate UrAt*

16 bit with

(19999 represents voltage ratio 0.1999.9)

R/W

000AH Disp

Rotating display times

Signed char 1

R/W

000BH B.LCD

Backlight time controls

16 bit with

R/W

Single-precision floating point size end mode Signed char

000CH Endian

R/W

(0:ABCD;1:CDAB;2:BADC;3:DCBA;)

Protocol switching

16 bit with

002CH Protocol

R/W

(1:DL/T645-2007;2:n.2;5:n.1;6:E.1;7:o.1)

002DH 002EH

Communication baud rate bAud

Signed char

R/W

(0:1200;1:2400;2:4800;3:9600;4:19200)

Communication address Addr(1247)

16 bit with

R/W

Electricity data on the secondary side

2000H

Uab

float

2002H

Ubc

Three phase line voltage data, Unit V(×0.1V)

float

2004H

Uca

float

2006H

Ua Three phase phase voltage data, Unit V V(×0.1V)

float

2008H

(Invalid for three phase three phase)

float

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 11, Total 18

200AH

float

200CH

float

200EH

Three phase current data, Unit A(×0.001A)

float

2010H

float

2012H

Combined active power, Unit W(×0.1W)

float

2014H

A phase active power, Unit W(×0.1W)

float

2016H

B phase active power, Unit W(×0.1W) (Invalid for three phase three phase)

float

2018H

C phase active power, Unit W(×0.1W)

float

201AH

Combined reactive power, Unit var(×0.1var)

float

201CH

A phase reactive power, Unit var(×0.1var)

float

201EH

B phase reactive power, Unit var(×0.1var) (Invalid for three phase three phase)

float

2020H

C phase reactive power, Unit var(×0.1var)

float

Combined power factor(positive number

float

202AH

PFt inductivenegative numbercapacitive) (×0.001)

A phase power factor(positive numberinductive float

202CH

PFa

negative numbercapacitive)

(Invalid for three phase three phase) (×0.001)

B phase power factor(positive numberinductive float

202EH

PFb

negative numbercapacitive)

(Invalid for three phase three phase) (×0.001)

C phase power factor(positive numberinductive float

2030H

PFc

negative numbercapacitive)

(Invalid for three phase three phase) (×0.001)

2044H

Freq

Frequency, Unit Hz(×0.01Hz)

float

Power secondary side data

101EH ImpEp

currentpositive total active energy

float

1028H ExpEp

currentnegative total active energy

float

currentTotal reactive energy of the first

float

1032H Q1Eq

quadrant

currentTotal reactive energy of the second

float

103CH Q2Eq

quadrant

currentTotal reactive energy of the third

float

1046H Q3Eq

quadrant

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 12, Total 18

currentTotal reactive energy of the fourth

float

1050H Q4Eq

quadarant

Note 1When the ratio of the voltage transformer is 1, the data of read voltage transformer ratio register

UrAt is 10. When the ratio of voltage transformer is 1, ignore the above table(UrAt×0.1).

Note : Single-precision floating point adopts standard IEEE754 format, total 32 bit(4 word). The

single-precision floating point mode is assumed to be 0, ABCD(high type in the front, low byte

behind).

4.4. Energy measurement function

The horizontal axis of the measurement plane represents the current vector I (fixed on the

horizontal axis), and the instantaneous voltage vector is used to represent the current power transmission.

Compared with the current vector I, it has phase angle. The counter-clockwise direction angle is

positive.

Output active power

Output reactive power

Input reactive power
+

II
Q

I
S

OOuuttppuutt rreeaaccttiivvee ppoowweerr

III

Output reactive power

Figure 11 Measurement schematic diagram for energy four quadrants

5. Outline and installation size

Model
DTSU666 DSSU666

able 12 Installation size

modulus
4 4

Outline size (length× width× height) mm
100×72×65

Installation size (din rail)
DIN35 din rail

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 13, Total 18

Figure 5 Outline size diagram
Figure 6 current cable terminal (Conductor Cross-sectional Area Range 16 mm2 )
Figure 7 RS485 cable terminal (Conductor Cross-sectional Area Range 0.25-1mm2 ) 6. Installation and operation manual 6.1. Inspection Tips
When unpacking the carton, if the shell has obvious signs caused by severe impact or falling, please contact with the supplier as soon as possible.
After the instrument being removed from the packing box, it should be placed on a flat and safe plane, facing up, not overlaying for more than five layers. If not installed or used in a short time, the electric meter shall be packed and placed to the original packing box for storage.

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 14, Total 18

6.2. Installation and tips 6.2.1. Installation and Inspection
If the model No or configuration in the original packing box is not in accordance with the requirement, please contact with the supplier. While, if the inner package or shell has been damaged after removing the instrument from the packing box, please do not install, power on the instrument, please contact with the supplier as soon as possible, instead. 6.2.2. I nstallation
It requires experienced electrician or professional personnel to install it and you must read this operation manual. During the installation, if the shell has obvious damage or marks caused by violent impact or falling, please do not install it or power on and contact with the supplier as soon as possible.

6.3. Typical wiring

Figure 8

Figure 9 Three phase four wire: direct connect

Figure 10 Three phase three wire: direct connect

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 15, Total 18

Figure 11 Three phase four wire: Connection throughcurrent transformers

Figure 12 Three phase three wire: Connection through current transformers

Figure 13 RS485

Figure 14 Pulse output

Voltage signal (only for connection via current transformer)

2-------UA (Phase A voltage input terminal)

5 -------UB (Phase B voltage input terminal)

8-------UC (Phase C voltage input terminal) Current signal:

10-------UN (Phase N voltage input terminal)

1-------IA*(Phase A current input terminal)

3------IA (Phase A current output terminal)

4-------IB*(Phase B current input terminal)

6------IB (Phase B current output terminal)

7-------IC*( Phase C current input terminal) RS485 Communication wire

9------IC(Phase C current output terminal)

24-------ARS485 Terminal A Auxiliary function

25-------BRS485 Terminal B

19------ Active energy and reactive energy output high terminal

21------ Active energy and reactive energy output low terminal

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 16, Total 18

Auxiliary function

19------ Active energy and reactive energy output high terminal

21------ Active energy and reactive energy output low terminal

7. Diagnosis, analysis and elimination for common faults

Fault phenomenon No display when powered on
Abnormal RS485 communication

Reason analysis

Elimination

1. If it is wrongly connected,

please reconnect based on

the right wiring mode (see

1Incorrect wiring 2Abnormal voltage for the
instrument

the wiring diagram). 2. If the supplied voltage is
abnormal, please choose the specified voltage.

3. If not the above problems,

please contact with the local

supplier.

1. If there is any problem with

the communication cable,

please change it. 1. RS485 communication cable
2. Set the address, baud rate, is opened, short circuit or
data bit and check bit reversely connected.
through buttons and confirm 2. Address, baud rate, data bit
it is the same with the host and check bit is not in
computer, then set the accordance with the host
operation to be "parameter computer.
settings". 3. The end of RS485
3. If the communication communication cable has not
distance is over than 100 been matched with resistance
meters, and the (when the distance over than
communication parameter 100 meters)
settings are the same as the 4. Not matched with the
host computer, but cannot be communication protocol
communicated, then please order of the host computer
lower the baud rate or add a

resistance of 120 at the

start terminal and ending

DTSU666 series and DSSU666 series three phase electronic energy meter(DIN-Rail)
Operation manual

ZTY0.464.1002 Page 17, Total 18

Abnormal data for the electrical parameter (voltage, current, power, etc.)
Abnormal data for the electrical parameter read by
communication (voltage, current, power, etc.)

1. The transformer's ratio hasn't been set, and the instrument displays the secondary side data.
2. Wrong wiring.
1. Data read by communication is secondary side data, without transformer ratio.
2. Wrong analysis for data frame

terminal. 1. If setting the transformer ratio, please set the voltage ratio and current ratio based on "parameter setting" 2. If wrongly connected, please connect the voltage and current of phase A, B and C to the wiring terminal of the instrument. 1. Multiply the data read by communication with the voltage ratio and current ratio. 2. Analyze the data frame based on the format of the communication protocol, please pay attention to the mode of the big and small end of data.

8. Transportation & Storage When transporting and unpacking the products, please confirm they are not severely impacted,
transporting and storing based on Transportation, basic environmental conditions and testing methods for instrument and meters of JB/T9329-1999.
The instrument and accessories shall be stored in the dry and ventilated places, to avoid humidity and corrosive gas erosion, with the limited environmental temperature for storage to be -40+70 and relative humidity not exceeding 85%. 9. Maintenance & Service
We guarantee free reparation and change for the multi-meter if found any unconformity with the standard, under circumstance of that the users fully comply with this instructions and complete seal after delivery within 18 months.

References

Adobe PDF library 17.00 Adobe Illustrator 27.3 (Windows)