Zhejiang CHINT Instrument & Meter Co., Ltd. DTSU666 Series User manual

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Quick operation manual of DTSU666-□series and DSSU666-□series
Digital Three-Phase Energy Meter
Thank you for using the products of Zhejiang CHINT Instrument & Meter Co., Ltd. In order to have a
safe and correct use of the instrument, please read this manual carefully and make sure to pay attention to
the following points in use:
This instrument must be installed and maintained by the qualified professionals;
The input signals and auxiliary power supply must be cut off before wiring of the instrument;
Make sure every part of the instrument without voltage by continuously using appropriate
voltage detection device;
The following conditions will lead to the damage or abnormal operation of the device:
Incorrect ratio setting of the instrument;
Out of range of auxiliary power supply、voltage、current、frequency；
Incorrect input polarity of current or voltage;
The terminals are not connected according to the requirements;
1. Technical parameters
Table 1
Technical parameters Index
Input
signal
Measuring network 3 phase 3 wire(DSSU666□series)
3 phase 4 wire(DTSU666□series)
Voltage
Rated value 3 phase 3 wire AC 3×380V；AC 3×400V
3 phase 4 wire AC 3×220/380V；AC 3×230/400V
Operating
voltage 0.7Un—1.2Un
Consumption
≤8VA/1W(per phase)
Resistance
＞
500kΩ
Current Rated value 3 phase 3 wire AC 5(80)A
3 phase 4 wire AC 1.5(6)A
Consumption ≤1VA(per phase)
Resistance
＜
20mΩ(per phase)
Frequency Input range 45Hz
～
65Hz
Output
Display
LCD display
DSSU666□and
DTSU666□series
Active energy Class1 resolving power 0.01kWh
Reactive energy Class 2 resolving power 0.01kvarh
Active energy
Class 0.5S
resolving power 0.01kWh
Reactive energy Class 2 resolving power 0.01kvarh
Energy
Energy
measurement forward
、
reverse active energy,
four-quadrant reactive energy.
Pulse constant
AC 3×380V；
AC 3×400V AC 1.5(6)A 6400imp/kWh(imp/kvarh)
AC 3×380V
；
AC 3×400V
AC
5(80)A
400imp/kWh(imp/kvarh)
AC 3×220/380V；
AC 3×230/400V AC 1.5(6)A 6400imp/kWh(imp/kvarh)

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AC 3×220/380V；
AC 3×230/400V AC 5(80)A 400imp/kWh(imp/kvarh)
Pulse signal
output
Supply active
、
reactive energy optical signal and
optocoupler collector open-circuit electrical signal impulse
output, pulse length:80±16ms
。
Auxiliary
function Protocol Support MODBUS-RTU communication Consultation, Baud rate support 2400bps, 4800bps, 9600bp.
Note 1：the other performance index, indoor table reference IEC 62053 - 21 requirements.
2. Wiring instructions:
Figure 1 DTSU666-□series Figure 2 DSSU666-□series
Figure 3 DTSU666-□series Figure 4 DSSU666-□series
Current signal wire
1-------L1*(phase L1 current input line) 3------L1(phase L1 current output line)
4-------L2*(phase L2 current input line) 6------L2(phase L2 current output line )
7-------L3*(phase L3 current input line) 9------L3(phase L3 current output line )
Voltage signal wire
2-------L1(phase L1 voltage line) 5-------L2(phase L2 voltage line)
8-------L3(phase L3 voltage line) 11-------UN(Neutral line)
RS485 communication line
15-------A（RS485-A）16-------B（RS485-B）
Energy pulse output line
20-------active ,reactive energy pulse + 21------- Energy pulse –
3. Instructions of programming parameters
Instruction of keys: “ ” means “confirm”，“ ”means “exit”, “ ”means “add”. Input
the password(assumed to be 701),enter the submenu item of “system settings”(when the system is set
to third rows of digital display, the first row of hidden):

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Figure 5 the settings of the common parameters
4. Installation size
Table2
Model Shell size（width×length×depth）DIN rail for
mounting
DTSU666-□series
DSSU666-□series 126mmx89mmx76mm 35mm
Figure 6 outside view
5. communication

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Factory setting: DL/T 645-2007 protocol, Parity(E.1), Baud Rate(9600bps),Meter Address see
lable.
The RS485 communication supports DLT 645-2007 protocol or ModBus_RTU protocol, DLT
645-2007 supports read Meter Address, (current) total import active energy, (current) export active
energy, (current)quadrants Ⅰreactive energy, (current)quadrants Ⅱreactive energy,
(current)quadrants Ⅲreactive energy, (current)quadrants Ⅳreactive energy, voltage, current, active
power, reactive power, power factor,frequency.
ModBus_RTU protocol, Parity(n.2), Baud Rate(9600bps),Meter Address see lable.
Table 3 ModBus Register Address
Parameter
address Parameter code Instruction of the parameters Type of data Length
of data
Word
Read&write
attributes
Keyboard parameters（detailed function see the instruction of the programming parameters，the actual value
of the parameter with(*)＝communication parameter value × 0.1）
0000H REV. version signed int 1 R/W
0001H UCode Programming password
codE signed int 1 R/W
0002H ClrE Electric energy zero clearing CLr.E(1:zero
clearing) signed int 1 R/W
0003H net Selecting of the connection mode
net(0:3P4W,13P3W) signed int 1 R/W
0004H RESERVED reserved signed int 1 R/W
0005H RESERVED reserved signed int 1 R/W
0006H IrAt Current Transformer
Ratio signed int 1 R/W
0007H UrAt
Potential Transformer
Ratio(*) signed int 1 R/W
000BH Meter type Meter type signed int 1 R
002CH Protocol Protocol changing-over signed int 1 R/W
002DH Addr Communication address
Addr signed int 1 R/W
002EH bAud Communication baud rate
bAud signed int 1 R/W
002FH Second Second signed int 1 R/W
0030H Minute Minute signed int 1 R/W
0031H Hour Hour signed int 1 R/W
0032H Day Day signed int 1 R/W
0033H
Month
Month
signed int
1
R/W
0034H Year Year signed int 1 R/W
Electric quantity of the secondary side
2000H Uab Line -line voltage, the
unit is V(It is invalid for 3 Floating Inverse(AB CD) 2 R
2002H Ubc Floating Inverse(AB CD) 2 R

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2004H Uca phase 4 wire) Floating Inverse(AB CD) 2 R
2006H Ua Phase-phase voltage, the
unit is V(It is invalid for 3
phase 3 wire)
Floating Inverse(AB CD) 2 R
2008H Ub Floating Inverse(AB CD) 2 R
200AH Uc Floating Inverse(AB CD) 2 R
200CH Ia The data of three phase
current,the unit is A
(Ib is invalid when three
phase three wire)
Floating Inverse(AB CD) 2 R
200EH Ib Floating Inverse(AB CD) 2 R
2010H Ic Floating Inverse(AB CD) 2 R
2012H Pt Conjunction active
power，the unit is W Floating Inverse(AB CD) 2 R
2014H Pa
A phase active power，the
unit is W Floating Inverse(AB CD)
2
R
2016H Pb
B phase active power
，
the
unit is W
(invalid when three phase
three wire)
Floating Inverse(AB CD)
2
R
2018H Pc C phase active power
，
the
unit is W Floating Inverse(AB CD) 2 R
201AH Qt Conjunction reactive
power，the unit is var Floating Inverse(AB CD) 2 R
201CH Qa
A phase reactive power，
the unit is var Floating Inverse(AB CD)
2
R
201EH Qb
B phase reactive power
，
the unit is var
(invalid when three phase
three wire)
Floating Inverse(AB CD)
2
R
2020H Qc C phase reactive power
，
the unit is var Floating Inverse(AB CD) 2 R
202AH PFt Conjunction power factor Floating Inverse(AB CD) 2 R
202CH PFa A phase power factor (invalid when three phase
three wire) Floating Inverse(AB CD) 2 R
202EH PFb B phase power factor (invalid when three phase
three wire) Floating Inverse(AB CD) 2 R
2030H PFc C phase power factor (invalid when three phase
three wire)
Floating Inverse(AB CD) 2 R
2044H Freq Frequency Floating Inverse(AB CD) 2 R
2050H DmPt Total active power
demand Floating Inverse(AB CD) 2 R
Electrical data of the secondary side
401EH ImpEp (current)positive active
total energy Floating Inverse(AB CD) 2 R
4020H
RESERVED
reserved
Floating Inverse(AB CD)
2
R
4022H RESERVED reserved Floating Inverse(AB CD) 2 R

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4024H RESERVED reserved Floating Inverse(AB CD) 2 R
4026H RESERVED reserved Floating Inverse(AB CD) 2 R
4028H ExpEp (current)negative active
total energy Floating Inverse(AB CD) 2 R
402AH RESERVED reserved Floating Inverse(AB CD) 2 R
402CH RESERVED reserved Floating Inverse(AB CD) 2 R
402EH RESERVED reserved Floating Inverse(AB CD) 2 R
4030H RESERVED reserved Floating Inverse(AB CD) 2 R
4032H Q1Eq (current) quadrant
Ⅰ
reactive total energy Floating Inverse(AB CD) 2 R
4034H RESERVED reserved Floating Inverse(AB CD) 2 R
4036H RESERVED reserved Floating Inverse(AB CD) 2 R
4038H RESERVED reserved Floating Inverse(AB CD) 2 R
403AH RESERVED reserved Floating Inverse(AB CD) 2 R
403CH Q2Eq (current) quadrant Ⅱ
reactive total energy Floating Inverse(AB CD) 2 R
403EH
RESERVED
reserved
Floating Inverse(AB CD)
2
R
4040H
RESERVED
reserved
Floating Inverse(AB CD)
2
R
4042H RESERVED reserved Floating Inverse(AB CD) 2 R
4044H RESERVED reserved Floating Inverse(AB CD) 2 R
4046H Q3Eq
(current) quadrant
Ⅲ
reactive total energy Floating Inverse(AB CD) 2 R
4048H RESERVED reserved Floating Inverse(AB CD) 2 R
404AH RESERVED reserved Floating Inverse(AB CD) 2 R
404CH
RESERVED
reserved
Floating Inverse(AB CD)
2
R
404EH RESERVED reserved Floating Inverse(AB CD) 2 R
4050H Q4Eq (current) quadrant
Ⅳ
reactive total energy
Floating Inverse(AB CD) 2 R
4052H RESERVED reserved Floating Inverse(AB CD) 2 R
4054H RESERVED reserved Floating Inverse(AB CD) 2 R
4056H RESERVED reserved Floating Inverse(AB CD) 2 R
4058H RESERVED reserved Floating Inverse(AB CD) 2 R
All the electric quantity data read by the communication is quadratic numerical, the rate is excluded,
complement numbers are the representation of negative numbers. Following is the detailed conversion
method.
Table 1
Parameter
name
Conversion formula Unit Parameter item
Voltage U = URMSx(x=a
、
b
、
c)×(UrAt×0.1)×0.1 V Ua,Ub,Uc,Uab,Ubc,Uca
current I = IRMSx(x=a、b、c) ×IrAt×0.001 A Ia,Ib,Ic
Active power P = Px(x=a
、
b
、
c)×(UrAt×0.1)×IrAt×0.1 W Pt,Pa,Pb,Pc
Reactive power Q = Qx(x=a、b、c)×(UrAt×0.1)×IrAt×0.1 var Pt,Qa,Qb,Qc
Power factor PF = PFx(x=a
、
b
、
c
、
t)×0.001 PFa,PFb,PFc,PFt
Frequency F = Freq×0.01 Hz F

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Energy Ep = E× UrAt×IrAt kWh
kvarh ImpEp
，
ExpEp
，
Q1Eq
，
Q2Eq，Q3Eq，Q4Eq
Note: When Potential Transformer(Pt) is 1, The value of UrAt is 10.
Manufacturer：Zhejiang CHINT Instrument&Meter Co.,Ltd.
Address：Bridge Industrial Zone,325603 Wenzhou,Zhejiang,China
P.C ：325603
Technical Support Hotline：[phone]-7659 86-15858113737
Quality Complaints：0577-62919999 8008577777
Counterfeit Complaints Hotline：[phone]
Website：http：//www.chint.com
Email：[e-mail]
Publication date: May, 2016