Mianyang Weibo Electronic WBP314P71 User manual

Designing, Manufacturing and Supplying WB Series Electric Isolated Sensor and Digital
Electrical Transducer since 1989
USER MANUAL
WBP314P71 active power transducer
(3-phase 4-wired)
www.wb-my.com
[email protected]
Technical Service: 86 816 2778271
Quality Complain: 86 816 2278273
Fax Line: 86 816 2281934
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Certified
Quality Warranty
Any quality problem found in WB series products, we offer
Three years free charge of repair the products, and six months guaranteed free charge of change and return the
products.

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WBP314P71 Active power transducer
Safety claim
The information in the safety claim of the equipment documentation is intended to ensure that
equipment is properly installed in order to maintain it in a condition.
It is assumed that everyone who would be associated with the equipment should be familiar with
the contents of that safety section, or this safety guide.
When electrical equipment is in operation, dangerous voltages will be present in certain parts of
the equipment (e.g. the input terminal). Failure to obverse warning notices, incorrect use, or
improper use may endanger personnel and equipment and course personal injury or physical
damage.
Before working in the terminal strip area, the equipment must be isolated.
Proper and safe operation of the equipment depends on appropriate shipping and handling, proper
storage, installation and commissioning, and on careful operation, maintenance and servicing.
The operating manual for the equipment gives instructions for its installation, commissioning, and
operation. However, the manual cannot cover all conceivable circumstances or include detailed
information on all topics. In the event of questions or specific problem, do not take any action
without proper authorization. Contact the appropriate WB technical sales office and request the
necessary information.
Standard application
1. Accuracy
Accurate degree is conformed to IEC688:1992
2. Safety
2.1 Overload capability
Overload capability is conformed to IEC688:1992
2.2 Isolation voltage
Can be endured testing voltage is conformed to Q/72085584-0.1-2004
2.3 Insulation impedance
The insulation impedance is no less than 20M Ohm, is conformed to
Q/72085584-0.1-2004
3. Electromagnetic Capability
3.1 Electromagnetic field immunity test according to IEC 61000-4-3:1995
3.2 Power frequency magnetic field immunity test according to IEC 61000-4-8:1993
Product Description andApplication
WBP314P71 adopts special made isolation module, professional MCU controller and the
technologies of high speed data synchronizing sampling and processing to isolate and convert
active power from three-phase four-wired electric circuit into a load independent output DC
average current signal 4-20mA.
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
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[email protected]

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WBQ314 P71 has certain advantages of input/output isolation, high performance, low drifting by
temperature, and low power consuming, etc.
Function realization schematic drawing
Vin
1
5
8
7
Out
6 7
+E G
+
_
Iin（a，b，c）
3
2（4）
Product Dimensional Drawing (unit: mm)
Product Terminal Identification Drawing
U
a
Ub
Uc
N
N
GND
+E
IZ
Power Source Led
1
2
3
4
5
10
9
8
7
6
Ic
Ib
Ia
WBP314
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
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Terminal definition table
1 Uc 5 Ua
2 N 6 +E
3 Ub 7 GND
4 N 8 IZ
Key Technical Data:
1. Input: V: 10…500V; I: 0…5A；
2. Output: 4mA～20mA
3. Input Frequency: 50 Hz
4. Accuracy: 0.5
5. Input Impedance (R): When UX≥10V, RU = UX×1KΩ/V
6. Linear Range: V：20%～120% of nominal input
I：1%～120% of nominal input
COSφ：0.1（lag）～1～0.1（lead）
7. Responding Time: ≤300 ms
8. Over Load Capacity: 2 times of nominal input voltage, continuous;
20 times of nominal input current, continuous.
9. Maximum Load: 6V
10. Auxiliary Power: +12Vdc/+24Vdc
11. Current consumption for static status: 40mA
12. Isolation Voltage: 2500VDC, for 1 minute
13. Output Ripple: ＜10mV (root-mean-square value, output load is 250Ohm)
14. Drifting by Temperature:≤1.0×10-4/℃
15. Ambient Temperature: 0℃～+50℃
16. Mounting: DIN Rail 35mm Mounting
Instruction of Installation and Use
1. The product has adopted structure compliance with EN50022; suitable for DIN rail
mounting NS35/7.5, NS35/15. Installation steps are as following (please reference to
dimensional drawing):
Step 1: Immobilize one side of product‘s mounting trough to the DIN mounting rail;
Step 2: Pull out the spring clasp;
Step 3: Place whole mounting trough to the DIN mounting rail properly;
Step 4: Release spring clasp to make sure the installation.
When uses screws for installation, the user needs 4 pieces of M3 screws and follows
drawing below to set screw installation holes.
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
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[email protected]

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67
110
4-φ3.5
2. The product has calibrated before out of factory. After correctly wiring, it can be
powered and used immediately. But for further precise signal sampling, user needs to
warm-up the product for 3 minutes before use.
a) The auxiliary power requires isolation voltage≥2000VAC, DC current output ripple
＜10mV, and multiple converters can share with one set auxiliary power together.
b) Output signal (Iz) is designed to follow the impedance load value of 250Ω; When
Resistance (R1) is less than 100Ω, the user must add output current circuit a power
reduced resistance load R0to keep the summation of total impedance value is
between 100Ω～250Ω
3. Basic testing method for accuracy
(1) According to the terminal definition table to connect the testing circuit;
(2) The testing must to be done by under the following conditions；
Auxiliary power: 24V±1％，ripple≤5mV
Ambient temperature: 25℃±2℃
Relative humidity: RH(45～75)％
Accuracy for Signal Power Source instrument: 0.05
Three
Phase
Power
Source
Auxiliary Power
1
8
7
6 7
V2
+
-
Transducer
UA
UB3
5
IC
IB
IA
UC
N
2(4)
250Ω
7
8
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
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[email protected]

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(3) Warming up the transducer for 3 minutes
(4) Based on the indication of 3-phase AC Calibration Meter, set one set of any
input value which is within the measuring range of the transducer Ur (line
voltage), Ir, COSφ, and the 3-phase input is balanced. (e.g. if input value is
100V and 5A, the output is 4-20mA, the expected output value Iz should be
calculated as: Iz =（20mA－4mA)×│(Ur×Ir×COSφ)/(100V×5A)│＋4mA)）
(5) Using output monitoring meter V2 to measuring the output voltage V0 of the
transducer, the basic introduced errorγof the transducer should be calculated
as:
γ= (Vo－Iz×250Ω)/[(20mA－4mA)×250Ω]×100
Repeating step (4) (5), if calculated absolute value is less than the given accuracy value of the
transducer, it shows the transducer’s accurate grade is qualified.
Caution:
1. Pay attention to the auxiliary power information, especially the auxiliary power grade,
and polarity, other wise will damage the product.
2. Pay attention to the wire connection; wrong terminal connection will cause
malfunction of the product and even damage the product;
3. Don’t dismantle the product, and carry with care to avoiding bump and fall of the
product;
4. If the product has been using under the environment with strong magnetic field
interference, please pay attention to the shield of input wire, and the output signal wire
should be as short as possible. For product intensive installation, the space between
each product should not be smaller than 10mm.
5. Only use identified terminals.
6. There is no lightening strike prevention circuit design in this product. For out door and
hazardous environment using, please add protective alternatives.
7. This product uses fire prevent ABS crust, its temperature withstand is only limited as
+85℃, higher than this limitation will cause the product deformation. Please use and
store carefully.
Warranty:
(a) Product Warranty: Seller warrants that upon Delivery the Product to be supplied by
Weibo shall be completely new and shall comply in all respects with the Technical
Specification confirmed with Buyer.
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
6
(b) Warranty Period: Three-year warranty of free charge of repairing the product , and any
purchase made in six months, Weibo will provide free charge of change and return the
product if damage and problem caused by product quality.
[email protected]

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Note: Transportation fee of repaired and returned product will be borne by Buyer
Product Input-Output characteristic curve
-100
Output（mA)
Input（％）
120
0
23.2
20
100
-120
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4mA～20mA Input-Output characteristic curve
Mianyang Weibo Electronics Co.,Limited
No.7 Road 2 of Xianren Road Youxian District Mianyang City P.R. China
Tel: [phone] Fax: [phone]
www.wb-my.com
7
[email protected]