General Communication Technology Inverter Energy Saving Injection Molding Machine - A General Communication Technology, Inverter - Electrical industry
Plastic Industry is a national of production and life are closely related to the industry, large cars, grinding, small mouse, switch, are closely associated. All of these products had to require a kind of the plastic injection molding machine ------ heating, cold pressing to make the trip by grinding machinery to produce complete. Process from the injection molding machine we know, injection molding machine technology in its various stages of the required percentage of oil pressure is different from that required Motor The output power is different. In fact, most currently used injection molding machine, the motor drive frequency used to provide the oil ------ flows from the motor (output power) is fixed, in order to meet the various stages in the injection of different sizes hydraulic requirements, we need the extra oil from the relief valve Pump Sent back to the concrete pumping ----- how much better a decision by its control section; this actually part of the energy wasted on this.
Converter In the injection molding machine, the Energy Saving is based on the fact. In the transformation, we extract injection molding machine control system itself, the hydraulic flow rate feedback signal ------ this mostly DC current signal, after processing, the input converter, how much control the frequency of the output decision to require that motor need much speed to be really "according to his needs", to eliminate the motor-power high-output, high wastage, and thereby save a lot of power.
For the injection molding machine control cabinet, in the graph has two DC ammeter pointer, one of the traffic signal for the current meter, the two Terminal Were receiving the injection molding machine control board S + and S-.
A radio accessories factory in Quanzhou, we used to preach to the company's injection molding machine for injection molding machine of its type frequency inverter transformation. Zhejiang production plant using a "sea-hung" brand injection molding machine, motor power 11KW, for which we use to preach to the company's PI7800011Z3 inverter models match.
General transfer molding machine-specific transducer, built-in compare two signals, signal processing circuit, the flow from the external signal injection molding machine ---- whether the voltage signal or current signal, can be very simple and direct input to facilitate on-site installation.
In this field, the hydraulic flow signal is a DC current signal, we take the hydraulic fluid flow signal because of the knowledge of ------, traffic changes and motor speed that is the motor is closely related to the frequency. We will introduce it received from the pointer table Department inverter I2 and V3 terminal.
Note: The inverter is connected in this circuit in. Corresponding parameter settings are as follows: F04 = 2: Frequency setting mode for the external current signal set; F22 = 1; minimum operating frequency is set to 1, that is, when the signal for a given frequency is less than 1H, the inverter frequency output is zero. This parameter can be set flexibly according to circumstances.
F69 under O05 = 15 (mA), it means that when the transducer receives processed for the 15mA current signal when the output corresponding to the maximum frequency. This parameter can be set flexibly according to circumstances, in general, the production of different parts, when required greater pressure may be due to smaller set for this parameter.
Note: If the processing of the workpiece the pressure required are relatively small, you can also set F13 = 45 (or Other More suitable value), so more energy efficient. This setting is optional. No. according to the above requirements
connection hardware, set up the parameters, you can run smoothly. Debugging problems and often approach 1) debug Precautions
Frequency energy injection molding machine Electric Transformation is relatively simple.
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