Acrel DDSY1352 User manual

T181
DDSY1352 /DTSY1352
Operation Manual of wireless prepaid
watt-hour meter
Installation and operation instruction T1.0
ACREL Co,.Ltd
Declare

The copyright is the property of Acrel. Any information in any
paragraph or section cannot be extracted, copied or otherwise reproduced
or propagated. Otherwise offenders shall take all consequences.
All rights are reserved.
Acrel reserves the right to modify the product specifications herein
without notification. Please consult the local agent about the latest
specifications before placing a purchase order.

Record of amendments to specifications
Date
The old
version
New Edition
Modify the content
2021.6.25
T1.0
First time writing

Content
1General.........................................................................................................................................1
2Type description......................................................................................................................... 1
3Instrument function...................................................................................................................2
4Technical parameter...................................................................................................................3
5Dimension drawings (Unit: mm)............................................................................................. 4
6Wiring and installing.................................................................................................................. 6
7Operation and display................................................................................................................8
8Communication protocol requirements............................................................................... 11

1
1General
DDSY1352 single phase wireless prepaid watt-hour meter,DTSY1352 three phase wireless
prepaid watt-hour meter are used for calculating the single and three phase active energy
respectively on the frequency of 50 Hz. The meter has functions of pre-paid, load controlling, time
control and NB,2G,4G,RS485 communication etc.Products meet the Enterprise Standard
Q31/0114000129c039-2019 《Enterprise Standard for electronic prepayment watt-hour meter 》
requirements.
2Type description

2
3Instrument function
3.1 Main function
Function name
Function description
DDSY1352
DTSY1352
Measurement of
kWh
Active kWh (positive and negative)
■
■
A, B, C phase positive active kWh
■
Measurement
of electrical
parameter
U、I
P、Q、S、PF、F
■
■
LCD Display
8 bits section LCD display,
background light
■
■
Key
programming
4 keys to communication and set
parameters
■
■
Pulse output
Active pulse output
■
■
LED alarm
TRIP alarm
■
■
Multi-tariff and
functions
Adapt 4 time zones, 2 time interval
lists, 14 time interval by day and 4
tariff rates
□
□
Max demanded kWh and time
happened
□
□
Real time demanded
□
□
Historical freeze, power purchases,
□
□
Date, time，week
□
□
Communicatio
n
Infrared communication
■
■
Communication path:
Communication interface: RS485,
Communication protocol:
MODBUS-RTU
■
■
2G Communication
□
□
4G Communication
□
□
NB Communication
□
□
Prepayment
agreement
(remote)
Prepaid control
■
■
Time control
■
■
Load control
■
■
Forced control
■
■
(“■” means standard, “□” means optional)
Note: prepaid function should be used with the company’s prepaid sales management system.

3
3.2 Control function
3.2.1 Prepaid control
Instrument support pre-payment function.Can set the basic amount of electricity meter free
trial;Can carry on four levels alarm to the remaining amount: insufficient balance alarm (first
level) , pre-trip alarm (second level) , arrearage alarm (third level) , reach the credit limit (fourth
level) alarm.
3.2.2 Time Management Control
Instrumentation support time management control.The day can be set to working day or holiday
mode, up to a maximum of 8 time periods per day, each time period can be set to turn-on or
turn-off state.
3.2.3 Load Management Control
Instrument Support Load Management Control, specific functions as follows:
Load total power limit: limit the maximum power consumption of the branch, when the
branch power exceeds the set value, the branch trip.
Malignant load identification: limit the branch access to the undefined malignant load, when
the branch access to the unauthorized malignant load (mainly manifested as a large power
increment and a large increment factor) , the branch trip.
4Technical parameter
4.1 Electrical characteristics
Projects
DDSY1352
DTSY1352
Specification
Measur
ement
voltage
Reference
voltage
220V
3×220/380V
Consumption
<10VA(Single phase)
Impedance
>2MΩ
Accuracy class
Error±0.2%
current
Input current
10(60)A
3×1(6)A，3×10(80)A
Consumption
<4VA(Single phase rated current)
Accuracy class
Error±0.2%
Power
Active, reactive, apparent power, error±0.5℅
Frequency
45～65Hz，Error±0.2%
meter
amount
Energy
Active energy(Accuracy
class:1)
Active energy(Accuracy
class:0.5)
Clock
≤0.5s/d
number
signal
Energy pulse output
1 active optocoupler output
Switching output
1 Switching output
2 Switching output

4
pulse
Width of pulse
80±20ms
Pulse constant
1600imp/kWh
6400imp/kWh,400imp/kWh
commu
nicatio
n
RS
485
Interface and
communication
RS485：Modbus RTU
Range of
communication
address
Modbus RTU:1~ 247
Baud rate
1200bps~19200bps
2G
Working band
GSM 850，EGSM 900，DCS 1800，PCS 1900
Transmission rate
GSM (Max.): 85.6 kbps (DL) / 85.6 kbps (UL)
4G
Working band
GSM 990/1800 MHZ LTE-FDD B1/B3/B5/B8
LTE-TDD B34/B38/B39/B40/B41
Transmission rate
LTE-FDD: 10 kbps (DL) / 5 kbps (UL)
NB
Working band
Cat NB2：B3/B5/B8/B20/B28
Transmission rate
LTE Cat NB1 (Max.): 25.5 kbps (DL) / 62.5 kbps (UL)
LTE Cat NB2 (Max.): 127 kbps (DL) / 158.5 kbps (UL)
Environ
ment
Relative temperature
-25℃~+55℃
Storage temperature
-40℃~+70℃
Relative humidity
≤95℅(No condensation)
Altitude
<2000m
5Dimension drawings (Unit: mm)
DDSY1352

5
derect connect
DTSY1352
derect connect

6
connect via CT
Note：The torque of direct connect should not be greater than 4.0N·m，and the torque of connect
via CT should not be greater than 2.0N·m。
6Wiring and installing
Wiring sample of voltage and current
DDSY1352

7
DTSY1352
Three phase three lines direct connect
DTSY1352
Three phase four lines direct connect
DTSY1352
Three phase four lines connect via CT
DTSY1352
Three phase three lines connect via CT

8
Wiring Diagram of auxiliary function
Note: 1. When the instrument band internal control function, (40-41) , (42-43) default can not
be used. If need to use, need the customer to indicate in the order form.
When tripping, a voltage should be introduced to 40 and 41 connected to the control terminal of
the corresponding circuit breaker.
The closing terminals of 42 and 43 can be used to control the closing of a specific device such
as an electric operating mechanism.
Terminals 41 and 43 shall be connected to fuses with a voltage rating greater than the current
voltage level of the system and rated current of 3-5A.
7Operation and display
7.1 Display
Under normal circumstances, the watt-hour meter after the default display the remaining
amount
Residual amount Total energy consumption
Voltage display Current display

9
Current price Total electricity purchases
Current network indication Enable network switch
Network switch time
7.2 Display the switch operation
Three types of view key can be achieved through the screen display. The order of the various
display interfaces is illustrated as follows:
：Voltage, current, active power, apparent power, frequency, power factor, date, time,
address, version number, full display detection
：Total power consumption, peak power consumption, average power consumption,
valley power consumption, meter number, alarm amount 1, alarm amount 2, current electricity
price, times of power purchase, power threshold
7.3 Keystroke programming
Under any display in the measurement display menu,Press to display &quot;0000&quot;
and prompt for a password (the default is 0001) before pressing ,If the password is entered
incorrectly, the initial interface is returned; if the password is entered correctly, the parameters can

10
be set. When you’re done, press ,Go to the “SAVE” screen and press “YES”or”
NO“.Save and exit if pressed under “Yes”and quit if pressed under ”NO”.
The programming menu is listed below
Num
First menu
Second menu
Symbol
Mean
Symbol
Mean
Range
1
BUS
Communi
cation
settings
ADDR
Address
setting
1-247
BAUD
Baud rate
38400、19200、
9600、4800、
2400、1200
PARITY
Parity
None、
Even
2
SYS
System
settings
PL
Network
3 phase 4 lines
3 phase 3 lines
ENCRYPT
Encryption
settings
ON
OFF
EF.E
Multi-tariff
rate
F:Multi-tariff
rate
E:
No multi-tariff
rate
CODE
Code setting
0-9999
MANUAL
Remote
control
ON
OFF
PMAX
Power
threshold
setting
Unit:W
LED
Time of light
Unit：min
CLEAR
Clear
parameter
6401：
Clear energy
6402：
Clear control
parameter
6403：
Clear all
IP
IP address
setting

11
PORT
Port ID
INT
Wireless data
upload interval
Unit:minute
3
IN
Input
settings
PT
Voltage ratio
setting
1-9999
CT
Current ratio
setting
1-9999
4
OUT
Output
selection
0-LEVEL
1-PULSE
Relay control
mode
0:Level output
1:Pulse output
8Communication protocol requirements
Instrument communication interface support,The baud rate of communication port can be set
between 1200BPS, 2400bps, 4800bps, 9600bps, 19200bps and 38400bps,The check bit can be set
to no check or even check.
8.1 MODBUS protocol communication address table
DDSY1352 communication address table
Address
Variable
Data type
R/W
Notes
0000H
Current total
electricity
UINT32
R
Calculation factor 0.01
Unit kWh
0002H
Current spike electric
energy
UINT32
R
0004H
Current peak electric
energy
UINT32
R
0006H
Current flat electric
energy
UINT32
R
0008H
Current valley electric
energy
UINT32
R
000AH
code
UINT16
R/W
Effective range（0~9999）
000BH
U Voltage
UINT16
R
Calculation factor 0.1，unit：V
000CH
I current
UINT16
R
Calculation factor 0.01，unit:A
000DH
P Active power
INT16
R
Calculation factor 0.001，
Unit:kW
000FH
S Apparent power
UINT16
R
Calculation factor 0.001，
unit: kVA
0010H
PF Ppower factor
INT16
R
Calculation factor 0.001
Effective range（-1000~1000）

12
0011H
Frequency
UINT16
R
Calculation factor 0.01，unit:Hz
0012H
Year, month
UINT8×2
R/W
0013H
Day, hour
UINT8×2
R/W
0014H
Minute, second
UINT8×2
R/W
0015H-003BH
Reserved
003CH
Current forward
active total electric
energy
UINT32
R
Calculation factor 0.01
Unit kWh
003EH
Current reversing
active total electric
energy
UINT32
R
0046H
Alarm amount 1
INT32
R/W
Calculation factor0.01
unit yuan
0048H
Alarm amount 2
INT32
R/W
004AH
Credit amount
UINT32
R/W
004CH
New purchase
amount
INT32
R
004EH
Times of power
purchase
UINT16
R
（0~1000）
004FH
Remaining amount
INT32
R
Calculation factor 0.01
Unit yuan
0051H
Total purchase
amount
INT32
R
0053H-0056H
Reserved
0057H
Mandatory control
word
UINT16
R/W
0001：Forced control on
0000：Forced closure
0058H
On off control word
UINT16
R/W
0000：Forced closing
0001：Forced trip
0059H-0060H
Peak and valley
electricity price
UINT32×4
R/W
Calculation factor 0.0001
Unit yuan
0061H
Current threshold
UINT16
R/W
Unit W
0062H
Operation status
word
UINT16
R/W
0063H
Output mode
UINT16
R/W
0000：Level output
0001：Pulse output
0064H-035FH
Reserved
0360H
Main
communication：
Communication
address and baud rate
UINT8×2
R/W
Communication address：1~247
Baud rate：0:1200
1:2400
2:4800
3:9600
4:19200
5:38400
0361H
Check bit stop bit
UINT8×2
R/W
Check bit：0：No check
1：Odd check

13
2：Even check
Stop bit：0:11 stop bit
1:1.51 stop bit
2:21 stop bit
0362H-0364H
Reserved
0365H-1FFFH
2000H
First time zone
address
First time zone start
data:day
First time zone start
data:month
……
Fourth time zone
address
Fourth time zone start
data:day
Fourth time zone start
data:month
UINT8×12
R/W
Time table number:
01 Corresponds to the first set
02 Corresponds to the second
set
2006H
The first time table:
Rate no. of period 1
Start time of the first
period: minutes
Start time of the first
period: hour
……
Period 14 rate No
Starting time of the
14th period: minutes
Starting time of the
14th period: hour
UINT8×42
R/W
Rate Number:
01 for Pointy
02 for peaks
03 for Ping
04 for Valley
201BH
Second time table:
Rate no. of period 1
Start time of the first
period: minutes
Start time of the first
period: hour
……
Period 14 rate No
Starting time of the
14th period: minutes
Starting time of the
14th period: hour
UINT8×42
R/W
Rate Number:
01 for Pointy
02 for peaks
03 for Ping
04 for Valley

14
DTSY1352
Starting address
Data item name
length
Read /
write
remarks
0000H
Current total
electricity
UINT32
R
Calculating factor0.01
unit:kWh
0002H
Current spike electric
energy
UINT32
R
0004H
Current peak electric
energy
UINT32
R
0006H
Current flat electric
energy
UINT32
R
0008H
Current valley
electric energy
UINT32
R
000AH-000CH
Date，time
UINT8×6
R/W
Seconds, minutes, days, years
000DH-0027H
Reserved
0028H
First time zone
address
First time zone start
data:day
First time zone start
data:month
……
Fourth time zone
address
Fourth time zone
start data:day
Fourth time zone
start data:month
UINT8×12
R/W
Time table number:
01 Corresponds to the first set
02 Corresponds to the second
set
002EH
Voltage of A phase
UINT16
R
Calculating factor:0.1
unit:V
002FH
Voltage of B phase
UINT16
R
0030H
Voltage of C phase
UINT16
R
0031H
Electricity of A phase
UINT16
R
Calculating factor:0.01
unit:A
0032H
Electricity of B phase
UINT16
R
0033H
Electricity of C phase
UINT16
R
0034H
Voltage between A-B
UINT16
R
Calculating factor:0.1
unit:V
0035H
Voltage between C-B
UINT16
R
0036H
Voltage between A-C
UINT16
R
0037H
PTValue
UINT16
R/W
Range of values（0~9999）
0038H
CTValue
UINT16
R/W
Range of values（0~9999）
0039H-003BH
Reserved
003CH
First level code
UINT16
R/W
Range of values（0~9999）
003DH
Secondary code
UINT16
R/W
Range of values（0~9999）
003EH-0042H
Reserved

15
0043H
0046H
Alarm amount 1
INT32
R/W
Calculating factor:0.01
unit：yuan
0048H
Alarm amount 2
INT32
R/W
004AH
Credit amount
UINT32
R/W
004CH
New purchase
amount
INT32
R
004EH
Times of power
purchase
UINT16
R
Range of values（0~9999）
004FH
Remaining amount
INT32
R
Calculating factor：0.01
0051H
Total purchase
amount
INT32
R
0053H-0056H
Reserved
0057H
Mandatory control
word
UINT16
R/W
0001：Override it
0000：Forced shutdown
0058H
On off control word
UINT16
R/W
0000：Forced closing
0001：Forced trip
0059H-0060H
Peak and valley
electricity price
UINT32×4
R/W
Calculating factor:0.001
unit：yuan
0061H
Current threshold
UINT16
R/W
unit:W
0062H
Operation status
word
UINT16
R/W
0063H
Output mode
UINT16
R/W
0000：Level output
0001：Pulse output
0064H
Demand
UINT16
R
Calculating factor:0.001
unit:kW
0065H
PA
INT32
R
Calculating factor:0.001
unit:kW
0067H
PB
INT32
R
0069H
PC
INT32
R
006BH
PT
INT32
R
006DH
QA
INT32
R
Calculating factor:0.001
unit:kvar
006FH
QB
INT32
R
0071H
QC
INT32
R
0073H
QT
INT32
R
0075H
SA
INT32
R
Calculating factor:0.001
unit:kVA
0077H
SB
INT32
R
0079H
SC
INT32
R
007BH
ST
INT32
R
007DH
PFA
INT16
R
Calculating factor:0.001
Effective range（-1000~1000）
007EH
PFB
INT16
R
007FH
PFC
INT16
R
0080H
PFT
INT16
R
0081H
Freq
INT16
R
Calculating factor:0.01
0082H-035FH
Reserved

16
0360H
Main
communication：
Communication
address and baud
rate
UINT8×2
R/W
Communication parameters
with ddsy1352
0361H
The main
communication：
Check bit stop bit
UINT8×2
R/W
0362H-0364H
Reserved
0365H
Deputy
communication:Com
munication address
and baud rate
UINT8×2
R/W
Communication parameters
with DDSY1352
0366H
Deputy
communication:Chec
k bit stop bit
UINT8×2
R/W
0367H-0369H
036AH-1FFFH
Reserved
2000H
Schedule 1:
Session 1 tariff
number
Starting Time of
session 1: Minutes
Starting Time of
session 1: hours
……
Section 14 tariff
number
Starting Time of
session 14: minutes
Session 14 starting
time: Hours
INT8×42
R/W
Rate Number:
01 for Pointy
02 for peaks
03 for Ping
04 for Valley
2015H
Schedule 2:
Session 1 tariff
number
Starting Time of
session 1: Minutes
Starting Time of
session 1: hours
……
Section 14 tariff
number
Starting Time of
session 14: minutes
INT8×42
R/W
Rate Number:
01 for Pointy
02 for peaks
03 for Ping
04 for Valley