DAIICHI QT2-500 User manual

QT-216-057
INSTRUCTION MANUAL
(DETAILED VERSION)
MULTI-TRANSDUCER
QT2-500

QT-216-057
1
Contents
Introduction ･････････････････････････････････････････････････････････････････････ 2
Safety precaution ････････････････････････････････････････････････････････････････ 2
Composition of type ･････････････････････････････････････････････････････････････ 3
1 Features of product ････････････････････････････････････････････････････････････ 4
2 Dimensions and part names ･･････････････････････････････････････････････････････ 4
3 Bundled items ･･････････････････････････････････････････････････････････････････ 4
4 Installation instructions ･･････････････････････････････････････････････････････ 4
5 Connection ･････････････････････････････････････････････････････････････････････ 6
6 Operation・Screen ･･････････････････････････････････････････････････････････････ 8
6.1 Basic operation ････････････････････････････････････････････････････････････ 8
6.2 Screen structure ･･･････････････････････････････････････････････････････････ 8
7 Display mode ･･･････････････････････････････････････････････････････････････････ 8
7.1 Measurement display ････････････････････････････････････････････････････････ 8
7.2 Setting value display ･･････････････････････････････････････････････････････ 10
8 Setting mode ･･･････････････････････････････････････････････････････････････････ 11
8.1 Setting flow ･･･････････････････････････････････････････････････････････････ 11
8.2 Setting method ･････････････････････････････････････････････････････････････ 11
8.3 Setting menu ･･･････････････････････････････････････････････････････････････ 12
9 Test mode ･･････････････････････････････････････････････････････････････････････022
9.1 Test flow ･･････････････････････････････････････････････････････････････････022
9.2 Test menu ･･････････････････････････････････････････････････････････････････022
10 Specifications ････････････････････････････････････････････････････････････････ 23
10.1 Rating ････････････････････････････････････････････････････････････････････ 23
10.2 Measurement item, Class ･･･････････････････････････････････････････････････ 24
10.3 Detailed specification ････････････････････････････････････････････････････ 25
10.4 Measuring range ･･･････････････････････････････････････････････････････････ 29
10.5 Input - output characteristic example ･････････････････････････････････････ 31
11 Multi-transducer setting software（QT2-CS-01）･････････････････････････････････ 35
11.1 Outline ･･･････････････････････････････････････････････････････････････････ 35
11.2 Operating environment ･････････････････････････････････････････････････････ 35
11.3 System configuration ･･････････････････････････････････････････････････････ 35
12 Troubleshooting ･･･････････････････････････････････････････････････････････････ 36

QT-216-057
2
Introduction
Thank you for purchase of DAIICHI product.
Please read this instruction manual carefully before use.
Keep this manual for future reference.
Please contact with us in case this manual is lost or damaged.
Safety Precaution
■ Environment conditions
 Please be sure to use this product in a place that meets the following conditions. In places that do
not meet this condition, malfunctions and failures, and performance and product life may be reduced.
① Within the range of ambient temperature -10...55 ℃, humidity 5...90 ％ RH.
② Place free of corrosive gas. (Corrosive gas：SO2 / H2S, etc.)
③ Place free of dust, salt and oily smoke.
④ Location that is not affected by vibration and shock.
⑤ Location that is not affected by external noise.
⑥ Altitude 2000m or less.
 If the input to this product is an inverter output such as cycle control, SCR phase angle control and
PWM control, measurement error may increase.
■ Outdoor use conditions.
① These products are not a dustproof, waterproof, and splash proof construction.
Please avoid the place with much dust. Please do not install in the place directly exposed to the
rain and water droplets. (IP code：IP30)
② Please do not install in the place directly exposed to the sun even through the glass.
Discoloration and degradation of a name plate, and deformation of the box by the surface temperature
rise may cause.
③ Product life may shorten when the daily average temperature exceeds 40 ℃.
■ Mounting and wiring
Please refer to this instruction manual for installation and the wiring.
 Please refer to connection diagram for the wiring.
An improper connection may cause generation of high voltage on the CT secondary side, and
which may lead to device malfunction, burning or fire.
 Hot line work is prohibited. There is a risk of explosion by electric shock, device
malfunction, burning, fire, or gas.
 Please use an electrical wire size suitable with the rated current.
Use unsuitable size electric wire, which may lead to a fire.
 Please check the tightening of the screw. If the screws are loose, it may cause a fire or
malfunction.
 The terminal cover is installed for preventing an electric shock accident.
Please close terminal cover after wiring work.
■ Preparation
This product must be set before use. Please read this manual and make the setting correctly.
If you make a mistake on the setting it does not operate correctly.
■ Maintenance and inspection
① Inspection during energization is dangerous.
② No replacement in periodic inspection.
③ Please wipe off lightly with the dry soft cloth.
④ Please do not use the organic solvent, chemicals, cleaners, etc., such as an alcohol, for cleaning.
■ Storage
When storing this product for a long period, please keep it in a place that satisfies the following
environmental conditions.
 Within the range of ambient temperature (-20...70 ℃) and humidity (5...90 ％RH).
 Place where average daily temperature does not exceed 40 ℃.
 Locations with little dust, corrosive gases, salt and oil smoke.
 A place not subject to vibration or shock.

QT-216-057
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■ Countermeasures against troubles
If this product breaks down within the warranty period, it will be repairs by DAIICHI Electronics.
■ Disposal
Please dispose of this product as industrial waste (noncombustible).
Mercury parts and a nickel-cadmium battery are not used for this product.
■ Warranty period
The warranty period of the product is one year after the date of delivery.
■ Warranty scope
In the state of the normal use of product-specification within the range according to this instruction manual,
the trouble within the warranty period performs exchange or repair gratuitously.
However, if it corresponds to the next, it does not warrant.
① If it breaks down when converted or repaired except our company.
② If it breaks down by use out of specification range.
③ If the cause of trouble is based on cause other than this product.
④ Transportation, movement, damage by falling, and trouble.
⑤ Other, natural disasters, disasters, etc. In the case where the supplier side (Company and agent) is
not responsible.
This warranty is a guarantee for the delivered product. Cannot warrant the damage induced by trouble of
this product.
■ Replacement cycle of the product
We recommend updating the product for 10 years as a rough standard.
■ Change of instruction manual written contents.
This instruction manual changes written contents without a notice by product improvement etc.
Composition of type
Type Specification code
QT2-500- ① Auxiliary supply ② Analog output
1 80...264 V AC, DC
AC/DC common use
1 0...5 V DC (600 Ω...∞) A 0...1 mA DC (0...10 kΩ)
2 0...10 V DC (2 kΩ...∞) B 4...20 mA DC (0...550 Ω)
2 20...57 V DC 3 1...5 V DC (600 Ω...∞) C -1...1 mA DC (0...10 kΩ)
4 -5...5 V DC (600 Ω...∞) Z Other (special specification)

QT-216-057
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1. Features of product
 Compliant with IEC60688：2012 (Transducer)、IEC62053：2003 (Static meters for active energy, Static meters
for reactive energy).
 CE marking product
 Possible to change by setting. (Wiring type, rated voltage, rated current)
 Standard equipment. 10-analog output, 2-pulse output, RS-485 Communication output (MODBUS / Protocol A).
 Connected to a PC with USB, you can write and read settings in dedicated software.
About the setting software, it is more downloadable than our web site.
URL；http://www.daiichi-ele.co.jp/en/
 Using an organic electro-luminescence display of high contrast.
Configuration changes, measurement items can be displayed.
 Wiring after installation can be confirmed in the test output by the front operation. To display the phase
angle between the voltage and current, and supports the determination of the wiring mistake points.
2. Dimensions and part names
3. Bundled items
① Instruction Manual (Instruction･Operation) ･･･････････････ 1
② Attachment tool ･･････････････････････････････････････････ 4
③ Termination resister for communication (100Ω) ･･･････････ 1
4. Installation instructions
Please select indoors without low mechanical vibration, dust, and corrosive gas.
There is no limit of a mounting position.
Mounting instruction can select IEC 35 mm rail (DIN rail) mounting and screw mounting.
Please separate the mounting side-by-side interval by 10 mm or more as a measure against heat.
Please consider heat and separate more than 10 mm of the interval of mounting side by side.
Please consider heat and wiring space and separate more than 90 mm of the space above and below.
Please secure the space distance of a terminal and a metal panel 10 mm or more.
＜Caution＞ Please do installation of a product and removal after a power supply and an input signal are
stopped.
M4 terminal cover
(access cover)
M3 terminal cover
(access cover)
Mounting leg ×4
IEC35mm rail (DIN rail)
Height：15mm
USB connector cover
Switch ×4
Cover open
Micro-USB
Power LED (White)
Organic Electro-luminescence display

QT-216-057
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Mounting leg
QT2-500
QT2-500
QT2-500
QT2-500
10
10
10
5465
10
65
110 11090
10
10
5465 65
■ Mounting the IEC 35 mm rail (DIN rail)
Set product so that its slider is at the bottom. Position the upper hook at the rear side of product
on the DIN rail and push in the lower.
IEC, DIN rail (35mm width)
Slider 10 10 10
QT2-500 QT2-500
■ Remove from the IEC 35 mm rail (DIN rail).
Push down the slider utilizing a minus screwdriver and pull.
Slider
Screwdriver
■ Screw mounting
Attach the included mounting leg (×4).
Please install with M4 screw or M5 screw.
Tightening torque, M4：1.00...1.30 N･m
Tightening torque, M5：2.00...2.50 N･m
<Caution> Please mount a product from the bottom to prevent a fall.

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5. Connection
Open the terminal cover, please connections according to the wiring diagram below.
Terminal numbers and names are listed on the back of the terminal cover.
With terminal cover open
■ Upside terminal No.1...15
Auxiliary supply, Voltage, Current,
Binary input, Ground terminal
Screw：M4 screw
Conformity crimp-type terminal
：Crimp-type terminal for M4 screw.
Outside diameter for terminal：8.5 mm or less
Tightening torque：1.0...1.3 N･m
■ Downside terminal No.16...42
Analog output, Pulse output,
Communication output terminal
Screw：M3 screw
Conformity crimp-type terminal
：Crimp-type terminal for M3 screw.
Outside diameter for terminal：6 mm or less
Tightening torque：0.5...0.6 N･m
■ 3P3W [3-phase 3-wire] (2VT2CT) ■ 3P4W [3-phase 4-wire] (3VT3CT)
～
－
～
( )
＋
( )
N
L2
L3
L1
28
CH7
＋
ANALOG OUTPUT
( )
＋
～
( )
－
～
EXT.RESET
INPUT
CH1...CH10
20
CH3
＋
CH1
CH1
16
＋
－
17 19
CH2
－
18
CH2
＋
24
CH5
＋
21
CH3
－
23
CH4
－
22
CH4
＋
25
CH5
－
27
CH6
－
26
CH6
＋
COMMUNICATION
OUTPUT
CH11,CH12
PULSE
OUTPUT
RS485
3632
CH9
＋
29
CH7
－
31
CH8
－
30
CH8
＋
33
CH9
－
35
－
34
＋
3937
38
＋
41
485
SG
RS
40
RS
485
42
－
RS
485
AUX.
SUPPLY
( )
－
( )
＋
～
～
INPUT
EXT.RESET
(L1-k)
L2
L3
L1
U
1
(L1) (L2)
2
U V
(NC)(L3)
345
V
K
KL
(NC)
12
( )
( )
11
BI ＋
～BI
(L1-l)
6
(S1)
－
～
13
(NC)
7
(L3-k)
14
(S2)
89
15
(E)
10
(L3-l)
L
LOAD
OUTPUT
COMMUNICATION
ANALOG OUTPUT
＋
CH7
28
CH1...CH10
CH3
－
21
CH1
－
17
＋
CH1
16
CH2
－
19
＋
CH2
18
＋
CH3
20
＋
CH5
24
CH4
－
23
＋
CH4
22
－
CH5
25
CH6
－
27
＋
CH6
26
OUTPUT
PULSE
CH11,CH12 RS485
36
＋
CH9
32
CH7
－
29
CH8
－
31
＋
CH8
30
CH9
－
33
－
35
＋
34
＋
485
RS
40
37 39
38
RS
485
SG
41
485
－
42
RS
SUPPLY
AUX.
( )
－
( )
～
～
＋
BI
(L1-k)(L1)
1
(N)
2
UV
(L2)(L3)
345
VU VU
K
(L2-l)
8
～
－
( )
12
(L2-k)
( )
～
＋
11
BI
(L1-l)
6
(S1)
13
7
(E)
(L3-k)
(S2)
14
9
15
(L3-l)
10
L
L
K
KL LOAD
■ 3P3W [3-phase 3-wire] (2VT3CT) ■ 3P4W [3-phase 4-wire] (2VT3CT)
ANALOG OUTPUT
＋
CH7
28
＋
CH3
20
CH1
CH1
＋
16
＋
－
17
CH2
－
19
CH2
18
CH1...CH10
＋
CH5
24
＋
CH3
－
21
CH4
－
23
CH4
22
＋
CH5
－
25
－
CH6
27
CH6
26
COMMUNICATION
OUTPUT
OUTPUT
CH11,CH12
PULSE
36
＋
CH9
32
＋
CH7
－
29
CH8
－
31
CH8
30
＋
CH9
－
33
－
35
34
SG
RS485
3937
38
＋
485
41
RS
485
40
RS 485 RS
－
42
COMMUNICATION
OUTPUT
28
CH7
＋
ANALOG OUTPUT
21
CH3
－－
17
CH1
＋
16
CH1 ＋＋
19
CH2
－
18
CH2
20
CH3
CH1...CH10
24
CH5
＋＋
23
CH4
－
22
CH4 ＋
25
CH5
－
27
CH6
－
26
CH6
36
CH11,CH12
PULSE
OUTPUT
32
CH9
＋＋
29
CH7
－
31
CH8
－
30
CH8 ＋
33
CH9
－
35
－
34
SG
RS485
40
RS
485
＋
37 39
38
41
RS
485
42
－
485
RS
L2
L3
N
( )
＋
～
( )
－
～
L1
(L1-k)
( )
( )
～
～
－
＋
L3
L2
L1
INPUT
EXT.RESET
1
(L1) (L2)
2
(NC)(L3)
345
UU V V
K
(L2-l)
～～
( )
12
( )
＋
BI
11
BI
(L1-l)
6
(S1)
－
13
(L2-k)
7
(L3-k)
(S2)
14
89
(E)
15
(L3-l)
10
L
K
K L
L
SUPPLY
AUX.
－
( )
～
～
＋
( )
EXT.RESET
INPUT
LOAD
(L1-k)
BI
(L1)
1
(N)
2
(NC)(L3)
345
UV VU
K
8
(L2-l)
～～
12
(L2-k)
( )
－
( )
11
＋BI
(L1-l)
6
(S1)
13
7
(E)
(L3-k)
14
(S2)
9
15
10
(L3-l)
L
L
K
KL
AUX.
SUPPLY
( )
－
( )
＋
～
～
LOAD

QT-216-057
7
■ 1P2W [1-phase 2-wire] ■ 1P3W [1-phase 3-wire]
N
L3
( )
＋
～
( )
－
～
L1
ANALOG OUTPUT
CH1...CH10
COMMUNICATION
OUTPUT
CH11,CH12
PULSE
OUTPUT
RS485
28
CH7
＋
(L1-k)
L2
( )
＋
～
( )
－
～
EXT.RESET
INPUT
20
CH3
＋
16 18
CH1
CH1
＋
17 19
－CH2 －
CH2
＋
22 24 26
CH5
＋
21 23
CH3
－CH4 －
CH4
＋
25 27
CH5
－CH6 －
CH6
＋
12
(L1) (L2)
U V
345
(NC)(NC)
L1 K
3630 32 34
CH9
＋
29 31
CH7
－CH8 －
CH8
＋
33 35
CH9
－ －
＋
4038 42
3937 41
485
SG
RS
RS
485
＋－
RS
485
(NC)
67
12
( )
11
( )
BI ＋
～BI
(L1-l)
13
(S1)
－
～
(NC)
8910
(NC)
14
(S2)
15
(E)
(NC)
AUX.
SUPPLY
＋
( )
～
( )
－
～EXT.RESET
INPUT
L
LOAD
COMMUNICATION
OUTPUT
ANALOG OUTPUT
CH1...CH10
CH11,CH12
PULSE
OUTPUT
RS485
28
CH7
＋
(L1-k)
BI
21
CH3
－
16 18 20
－
17
CH1
CH1
＋
19
CH2
－
CH2
＋CH3 ＋
22 24 26
CH5
＋
23
CH4
－
CH4
＋
25 27
CH5
－CH6 －
CH6
＋
12
(L1) (N)
345
(NC)(L3)
3630 32 34
CH9
＋
29 31
CH7
－CH8 －
CH8
＋
33 35
CH9
－ －
＋
4038 42
RS
485
＋
37 39 41
SG
RS
485
－
485
RS
8
(NC)
67
12
( )
－
～
11
( )
＋
～BI
(L1-l)
13
(S1)
(NC)
910
(E)
(L3-k)
14
(S2)
15
(L3-l)
K L
KL
AUX.
SUPPLY
＋
( )
～
( )
－
～
LOAD
・Maximum rated voltage
Wiring type
3P4W 3P3W
(Ground)
3P3W
(Ungrounded)
1P2W
(Ground)
1P2W
(Ungrounded) 1P3W
Maximum rated
voltage
277 V (L-N)
480 V (L-L) 220 V (L-L) 480 V (L-L) 220 V (L-L) 480 V (L-L) 220 V (L-N) 440 V (L-L)
・In the case of the low-pressure circuit (600 V or less), the secondary grounding of VT / CT is not required.
・Ground terminal (No.15), please be sure to ground. Ground is a class D grounding (grounding resistance
less than 100 Ω).
・Output wiring and the noise source (power line, steep voltage, the wire there is a current fluctuation),
please release as much as possible. Please use a twisted cable or twisted cable shielded.
・Minus (-) terminals are connected internally of analog output CH1...5. (Common, Non-isolated)
Minus (-) terminals are connected internally of analog output CH6...10. (Common, Non-isolated)
・Be used open the analog output terminal (current output), there is no damage to this product.
・Termination resistor for the communication output, please use at the end of equipment.
Please connect the termination resistor between the RS485 of (+)(-) terminals.
・By applying a voltage signal (auxiliary supply and the same rating) to the external reset input, maximum
demand value (current and power) can be reset.
・After the wiring work, please close the terminal cover.

QT-216-057
8
6. Operation and Screen
6.1 Basic operation
Note (１) By pressing and holding the switch for more than one second, it returns from each of the screen
to the MENU screen.
6.2 Screen structure
・Screen display Example：MENU
7．Display modes
7.1 Measurement display
(1) Display
■ Measurands
■ Phase / line display
■ Page No.
Current page / Total pages
■ Measurement value
Input is converted into the %.
Example：110 V, 5 A
I，HI 0...5 A 0...100.0 ％
U，HU 0...150 V 0...100.0 ％
P/Q/S -1 kW/kvar...
1 kW/kvar/kVA -100.0～100.0 ％
Power factor, frequency, active energy,
harmonics distortion / content display a
real measured value.
Refer to section 10.4 for details.
POWER ON
Display OFF
DISPLAY
TEST
SETTINGS
Selection screen
Selection screen
Selection screen
Confirmation screen
Confirmation screen
YES
SET
YES
SET SET
SET
Setting
mode
(P11-)
Test
mode
(P22-)
MODE is pressed with each screen, return to the before screen. (Confirmation screen skips.)
MENU
MODE
Push 3 sec
MODE
Switch
operation
No operation (1 to 30 min.：Setting)
MODE
1 sec. (１)
SET
Display
mode
(P8-)
MODE
SET
TEST/SETTING locked.
During the lock cannot
be migrated to the test
mode and setting mode.
■ Main display
Display the item, settings,
measurement etc..
■ Operation guidance
Display the operation at the time
of switch operation.
■ USB icon
To display when the USB connection.
■ Display name
■ Cursor position (highlight)
■ Switch icon
Displayed when the
▲ and ▼
of the operation is required.
■ Lock icon
Displays at the time of
the test / setting lock.

QT-216-057
9
(2) Operation
①【MENU】→ 「DISPLAY」 SET →「MEASUREMENT」 SET → Measurement display mode.
② Select the measurement element to be displayed. ( ▲ ▼ switch)
No.1 Current display No.2 Demand current display No.50 Harmonic 15th RMS value
(3) Measurement item
Page Measurement Screen
display
Wiring type
3P3W 3P4W 1P2W 1P3W
1 Current， Current (power flow) I 1，2，3，avg (２) 1，2，3，N，avg (２) I 1，3，N
2 Demand current Id 1，2，3，avg (２) 1，2，3，N，avg (２) Id 1，3，N
3 Maximum demand current Idmax 1，2，3，avg (２) 1，2，3，N，avg (２) Idmax 1，3，N
4 Line voltage, Phase voltage U 12，23，31，avg
(２)
12，23，31，LLavg，
1N，2N，3N，LNavg (３) U 13，1N，3N
5 Active power P Σ (２) 1，2，3，Σ (２) P Σ (２)
6 Demand power Pd Σ (２) 1，2，3，Σ (２) Pd Σ (２)
7 Maximum demand power Pdmax Σ (２) 1，2，3，Σ (２) Pdmax Σ (２)
8 Reactive power Q Σ (２) 1，2，3，Σ (２) Q Σ (２)
9 Apparent power S Σ (２) 1，2，3，Σ (２) S Σ (２)
10 Power factor PF Σ (２) 1，2，3，Σ (２) PF Σ (２)
11 Frequency f f f f f
12 Active energy Wh Incoming (+) / Outgoing (-)
13 Reactive energy (Incoming) +varh LAG/LEAD
14 Reactive energy (Outgoing) -varh LAG/LEAD
Page Measurement Measurands Wiring type
3P3W 3P4W 1P2W 1P3W
15
Harmonic
current
Distortion factor
HI
％
THD
2VT,2CT
1，3
2VT,3CT
1，2，3
1，2，3 HI 1，3
16 5th conversion content CONV.5th
17...23 3th，5th，7th，9th，11th，13th，
15th，content
3th，5th，7th，9th，
11th，13th，15th
24 5th conversion RMS value
RMS
CONV.5th
25 Fundamental-wave RMS value 1st
26...32 3th，5th，7th，9th，11th，13th，
15th，RMS value
3th，5th，7th，9th，
11th，13th，15th
33
Harmonic
voltage
Distortion factor
HU
％
THD
12，23
2VT,3CT
1N，3N
3VT,3CT
1N，2N，3N
HU 1N，3N
34 5th conversion content CONV.5th
35...41 3th，5th，7th，9th，11th，13th，
15th，content
3th，5th，7th，9th，
11th，13th，15th
42 5th conversion RMS value
RMS
CONV.5th
43 Fundamental-wave RMS value 1st
44...50 3th，5th，7th，9th，11th，13th，
15th，RMS value
3th，5th，7th，9th，
11th，13th，15th
Note (２) avg：Average, Σ：Total.
Note (３) Since the line voltage and phase voltage that is displayed on the 2 page, the following pages No. will
be +1. (3P4W)