N700E N700 N5000
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MANUAL N7_FB ENCODER

Welcome!

The group of companies ‘Polypumel’, was established in 1997 and ever since then it presents the interests of HYUNDAI HEAVY INDUSTRIES company, in particular marketing and sales of electro-technical equipment (frequency inverters) in a number of European countries. POLYPUMEL SRL is a member of this group and is representing Italian headquarters’ best interests since 2011.

HYUNDAI HEAVY INDUSTRIES’ frequency inverters, give an opportunity for clients to use the most recent technologies. At the same time, we offer great quality for reasonable price, making it most convenient for our clients.

What we have on offer for our customers:

  • Technical consultations regarding equipment choices
  • Specialists’ and engineers’ consultancy regarding the use of equipment
  • Experience and help with Hyundai frequency inverter’s implementation into a number of technical procedures:
  • Prompt equipment delivery
For pumps and fans For elevators and cranes For conveyors and norias
For dosaging and
packing equipment
For centrifuges and
separators
For machine tools
For presses For spoolers For automatic lines

The ways of frequency inverters use

Frequency inverter for pumps

( Hyundai N700, N700E, N5000)

First example of the most effective frequency inverter use. The simplest and most effective use is control over pump station’s water supply pumping systems and power distribution points. This is based upon stabilization of both, hot and cold water pressure levels, at the point where the water flow exits from the pump station. Possibly, It can be used as a feedback signal of the pressure sensor or water surplus detector. The signal from the sensor is put to an equivalent input of the inverter, the parameters used to configure the inverter analog input A5..A8, set values of the signal from the pressure sensor feedback values of the frequency output from the frequency inverter. For instance, A5 = 0.0 – is the frequency corresponding to the minimum value of 4 mA, signal A6 = 50.0 – is the frequency corresponding to the maximum value of 20 mA, A7 = 0 – is the percentage equivalent input corresponding to 4 mA of current from the pressure sensor corresponding to the indications in the engine which are not to be rotated, the A8 = 100 – is the percentage equivalent input corresponding to 20 mA of current from the pressure sensor, the appropriate indications when the motor is running at the frequency setting of 50 Hz. As well as that, you may enter random values to the A5 and A6 parameters. For instance, values that correspond to the pressure readings of 0 and 6.5 bars (pressure corresponding to the pressure sensor currents scored when entered into A7 and A8 parameters), and thus directly control the pressure from the drive sockets. At irregular daily, weekly, monthly consumption of water, the maintenance of the optimum pressure within networks is achievable through closure of the gate valves at the pumping station exit point (method of throttling) or speed change of the pumping unit rotation (change in its performance). The power consumed by the pump, is in a cubic dependence of the speed of rotation of the impeller. P = f (Q3). Pump performance Q – is directly proportional to the speed of rotation of the impeller i.e. decreasing speed of rotation of the impeller (fan) by 2 times, can consequently lead to a reduction in pump’s power consumption by 8 times. Knowing the daily schedule of water usage or consumption, we can determine the daily energy savings when using variable frequency drive. Thus, it is clear that regulation method of using variable frequency drive, is significantly more effective than regulation method of throttling.

Frequency inverter used for ventilation purposes

(Hyundai N700, N700E, N5000)

Application of variable frequency drive, in the ventilation and air conditioning systems. Normally, fans have the settings that provide the maximum air flow required by the system. However, the operating conditions often require a reduction in consumption. This is achievable due to an option of throttling at a constant frequency of rotation of the fan, as well as that, there is an option of changing the rotational speed of the fan shaft using a variable frequency drive. Performance can be altered depending on the season, climatic conditions, the balance of heat and water generation and emissions of harmful gases and vapors. The dependence of the fan’s power consumption on the fan shaft ventilation speed is the same, as that centrifugal pump’s dependence. P = f (Q3), i.e. reduction of fan’s rotation rate reduces power consumption by 8 times. Up to 60% of energy can be saved when using variable frequency drive.

Frequency inverter used for sewerage purposes

(Hyundai N700, N700E, N5000)

Management of sewage pumping station’s – pumping units . Sewage pumping station’s features. Most of the time the station operates as a pumping unit. Capacity control throttle piping is usually not provided. Pumping effluent occurs when the unit is in a mode of periodic connections. The use of frequency inverters, allows you to: Saving energy through pumping unit control according to a special algorithm, includes: * The stabilization of the maximum level tank capacity at high flow; * Maintaining the optimum frequency of the motor at lowering the inflow; * Exclusion of the electricity loss in the starting currents; Maintenance of the equipment is greatly simplifies, as now, it excludes a large number of motor starts. Optimal pumping wastewater flow mode is guaranteed without water hydro impact. The numbers of switches and control circuits of pump units are reduced in the switching power circuits.

Frequency inverter for submersible pumps

(Hyundai N700, N700E, N5000)

The advantages of using variable frequency drive for deep-water pumps. * Energy savings of 30 to 60%. * Exclusion of hydro impact, that can dramatically increase the life of pipes and valves. * The lack of large inrush currents, the full protection of electric motor pumps, motors and work starting equipment at low load, which significantly increases the life expectancy of electric motors. * Significant water savings by optimizing the pressure in the networks and reduce pipeline breaks. * Ability to fully automate the pump stations. * Water can be supplied to the consumer directly through a closed pipe without accumulation in the tank or the water tank. * Does not require the construction, maintenance, water tanks or storage tanks * Feature of application IF: distance from the inverter to the e / d without throttle motor with a power of e / d to 5 kW 10-20m, up to 50 kW – 30-40m, with the throttle – up to 200m.

Frequency inverter for the level maintenance

(Hyundai N700, N700E, N5000)

Maintaining a predetermined liquid level in the tank. Applying inverter to maintain a predetermined liquid level in the tank. Pump performance is regulated depending on the liquid level in the tank. The effect is similar to the description of the pump’s application in the sewer.

High-power frequency inverter for boilers

(Hyundai N700, N700E, N5000)

Application of variable frequency drive in pumping and mechanisms forced-draft for boiler installations. Forced-draft machines consume about 60% of the electricity needs of their own boilers. Therefore, the regulation of their regime parameters, have a significant impact on the power and efficiency of boiler installations. The use of variable frequency drives can solve the problem of harmonization of operating parameters and energy forced-draft arrangements with the changing nature of the load boilers. The main purpose of forced-draft mechanisms and boilers, is to maintain the optimal mode of combustion in the boiler furnace. The term here refers to the optimal mode of maintenance of the optimum ratio “fuel-air” and the creation of favorable conditions for complete combustion. To fulfill this condition, we must submit the required amount of air into the furnace – with a given intensity to extract from it the products of combustion. The use of frequency inverters for fan control of the air supply to the furnace, as well as smoke exhaust fan can not only effectively solve this problem, but also automate this process fully and efficiently. Typically, the control system must support exhauster discharge a predetermined amount in the boiler furnace boiler, regardless of performance. Fuel is supplied to the boiler to maintain the balance between the heat supply and to tap its existing management system performs a boiler capacity of regulating the supply of fuel. With its increase, increases airflow to the boiler and electric exhauster should increase the suction volume of the combustion products. Thus, the link between control systems and smoke exhaust fan through the boiler furnace. Since the load curve rather uneven heating boiler, reducing performance, as the fan and exhauster will save up to 70% of the electricity going to the actuation of these mechanisms. The advantages of using variable frequency drive: * Energy savings of 30 to 60%. * Excluding water hammer that can dramatically increase the life of pipes and valves. * The lack of large inrush currents, the full protection of electric motors pumps, motors and work starting equipment at low load, which significantly increases the service life of motors. * Significant energy savings by optimizing their consumption. * Ability to fully automate the facility.

High-power frequency inverter for compressors

(Hyundai N700, N700E, N5000)

Application of variable frequency drive, in the compressor settings. Jobs reciprocating compressor are significantly different, from working with the fan response mechanisms, as opposing force torque on its shaft can be considered constant. However, compressor efficiency Q m3 / min depends on the number of turns of its shaft. When adjusting the compressor’s capacity, by changing its shaft’s number of turns – the power consumed by the motor from the network consequently also gets adjusted, resulting in the movement of the compressor. Industrial enterprises often need to adjust the performance of the compressor units by altering the motor’s speed. Because of the uneven consumption of compressed air, when the compressor is sometimes necessary to open, the drain valve in the compressor receiver. Application of the variable frequency drive, as shown in the diagram, allows you to save energy, while maintaining optimum pressure at the optimal flow rate of the compressed air in the pneumatic system. When using a VFD for controlling the screw compressor can be obtained energy savings, savings at comparable centrifugal pump (60%) as Screw compressor characteristic close to the characteristic of a centrifugal pump. In addition, to obtaining the use of energy saving variable frequency drive, further provides the following: * Reduces wear switchgear due to the lack of large inrush currents when the compressor motor. * Optimization of the pressure in the pipeline reduces the leakage of compressed air. * Increases the service life of the motor due to the decline of its heavy workload and lack of start-up modes.

High-power frequency inverter for products' packaging

(Hyundai N700, N700E)

Installation for packing. This example, illustrates the use of the frequency inverters, in an installation for material packing. The conveyor operates on a displacement-loading cycle. The dispenser is switched on when the conveyor (under it) – establishes container. With a more accurate maintenance of speed, positioning, management of information networks – the coefficient of efficiency system can be obtained.

High-power frequency inverter for winding machines

(Hyundai N700, N700E)

Installation for material’s winding. In order to broach the material with small deviations from the desired speed, frequency inverter with a feedback sensor (encoder)is used. For obtainment of the material roll, with a constant tension throughout the winding diameter – the bobbin frequency inverter, should be controlled by the equivalent signal from the tension sensor. Another option – is the built-in functions’ use – functions such as limitation or control of the inverter.

High-power frequency inverters for transportation

(Hyundai N700, N700E)

Installation for uniform material transportation. Application of frequency inverter in “master-slave”‘ setting the example for moving the material. In order to achieve the same output, frequency is widely used in the “master-slave” mode. At the same time the speed reference applied to the drive “master.” The rest are slave drive and get task with the speed slave.

High-power frequency inverter for stacking

(Hyundai N700, N700E)

Apparatus for winding wire row with the use of spreader. To obtain the information regarding the actual turning speed, the number of turns, possible realization of the torque tension – winding drive uses the feedback sensor. The signal, that is proportional to the speed of the drive winding, is transmitted to the spreader. In this way, synchronization of the reciprocating motion spreader for the row coil winding – is achieve.

High-power frequency inverters for resource and energy saving

(Hyundai N700, N700E, N5000)

Resource and energy saving. The simplest and most effective use is control over pumping units of the pump station’s water supply networks and heat distribution points. This is based upon stabilization of both, hot and cold water pressure levels, at the point where the water flow exits from the pump station. This can, further, be used as a feedback signal of the sensor flow rate. At irregular daily, weekly, monthly consumption of water, the maintenance of the optimum pressure within networks is achievable through closure of the gate valves at the pumping station exit point (method of throttling) or speed change of the pumping unit rotation (change in its performance). The power consumed by the pump, is in a cubic dependence of the speed of rotation of the impeller. P = f (Q3) Pump performance Q – is directly proportional to the speed of rotation of the impeller i.e. decreasing speed of rotation of the impeller (fan) by 2 times, can consequently lead to a reduction in pump’s power consumption by 8 times. Based on the water consumption and the power dependence charts, consumed by the pump – we can identify the estimate economy of the electric energy from the use of variable frequency drive. Knowing the daily schedule of water usage or consumption, we can determine the daily energy savings when using variable frequency drive. For each value of the pump Q, it would be the difference P from the generated power consumption chart. Thus, it is evident that a variable frequency drive is much more efficient.