WB9128-1 Motor Operation Monitoring System for Hoist of Reservoir Sluice adopts special made isolation module, professional MCU controller and high speed data synchronizing sampling and processing technologies to isolate and convert active power of three-phase four-wired electric system or 3 phase 3 wire system into RS485 bus and load independent output DC average current signal 4-20mA or 0-20mA and dc voltage signal 0-5V or 1-5V; It has certain advantages of input/output isolation, high performance, low drifting by temperature, and low power consuming, etc.
Application background:
The traditional hoist monitoring is to use load pressure sensors to directly measure the pull/pressure to achieve overload protection of the motor load. This method is not only difficult to install and maintain, but more important is the core component used by this type of sensor-pressure sensitive components are extremely susceptible to environmental interference, such as drift caused by outdoor temperature, damage caused by vibration, and aging of the adhesive layer caused by long use time. In addition, because the range of force measured by the application equipment is relatively wide, the accuracy of the direct force measurement type is low, and it is difficult to meet the application requirements on the spot.
Solution:
The motor load measurement and control instrument is connected to the distribution box of the three-phase motor, and the weight of the actual load is converted according to the output active power of the three-phase motor. The product uses electromagnetic isolation to sample the voltage and current on the distribution line. The output uses a liquid crystal screen to display the current electrical parameters and the gravity load converted by mathematical equations, and the gravity load is measured by the electrical parameters. The motor load measurement and control instrument is installed in the distribution box. It is small in size, light in weight, and is little affected by the external temperature. No additional wiring is required on site, and the stability and reliability are greatly improved. The product has a wide range of application fields, including the lifting of the typical water gate in the water conservancy industry, and the lifting and falling of the heavy equipment industry. This product is suitable for motor operation monitoring system and so on.
Application:
This product has been successfully applied in the inspection projects of hoists of many reservoir sluices in lots of cities.
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1. Input: Phase Voltage AC 57.7V ~ 289V; Line Voltage AC 100V ~500V; Current AC 1A~ 50A;
2. Input Configuration System: 3- phase 3- wire; 3- phase 4- wire;
3. Linear Measurement Range:
Voltage 20% - 100% of rated input voltage; Current 1% - 100% of rated input current;
4. Input Frequency: 50Hz;
5. Output Ripple: 10mV;
6. Output Types: One channel RS485; Dual Channel analog;
7. Analogue Output Specifications:
DC Voltage output:2.5V±2.5V; 0-5V; 1..5V;3V±2V; DC Current:10mA ± 10mA; 0-20mA; 4-20mA; 12mA±8mA;
8. Output Parameters:E,R,PQ,C,S,Ua,Ub,Uc,Uab,Ubc,Uac,Ia,Ib,Ic,Pa,Pb,Pc,Qa,Qb,Qc,Ca,Cb,CC,Sa,Sb,Sc
9. Accuracy Grade: Current, voltage 0.2% reactive/active power /power factor 0.5%
10. Response Time: 200ms;
11. Auxiliary Power Supply: DC 12V; DC 24V;
12. Static Current: 65mA;
13. Operating Temperature: 0-50 ℃;
14. Communication Protocol: Modbus – RTU;
15. Baud Rate: 300, 600, 1200,2400, 4800, 9600,19200,38400,57600,115200;
16. Parity Bit: odd, even, none;
17. Temperature Drift: 100 PPM;
18. Stop Bit:
Odd Parity 1 stop bit;
Even Parity 1 stop bit;
None Parity 1 stop bit;
None Parity 2 stop bite;
19. Address: 1 – 247;
20. Voltage Insulation: DC 2500V; 1 minute;
21. Mounting: DIN rail 35mm mount.
