Frequency Inverter Single-phase 380V class 0.75KW
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 100000 pc/month
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General
CNBM frequency inverter is a high-quality, multi-function,
low-noise variable frequency drive which is designed, developed and manufactured according to international standards.
It can meet different needs of industrial conditions.
The inverter applies advanced control technology of space voltage vector PWM, with functions of constant voltage control, power-off restart, dead zone compensation, automatic torque compensation, online modification parameter, high-speed impulse input, simple PLC and traverse.
Product Name:CMAX-VCG15/P18.5T3 ~ CMAX-VCG18.5/P22T3
Application
Textile: coarse spinner, spinning frame, wrap-knitting machine, loom, knitting machine, silk-spinning machine, etc.
Plastic: extruder, hauling machine, decorating machine, etc.
Pharmacy: mixer, roaster, etc.
Woodworking: engraving machine, sander, veneer peeling lathe, etc.
Papermaking: single type papermaking machine, etc.
Machine tool: non-core grinding machine, optical lens grinding machine, cutting mill, etc.
Printing: cloth-washing machine, dye vat, etc.
Cement: feeder, air blower, rotary furnace, mixer, crusher, etc
Fan and pump: kinds of fans, blowers and pumps
Specification
Item | Specification | |
Input | Input voltage | 220/380V±15% |
Input frequency | 47~63Hz | |
Output | Output voltage | 0~input voltage |
Output frequency | 0~600Hz | |
Peripheral interface characteristics | Programmable digital input | 4 switch input, 1 high-speed impulse input |
Programmable analog input | AI1: 0~10V input AI2: 0~10V input or 0~20mA input, | |
Programmable open collector output | 2 Output (3.7kW and above: 1 Open collector output) | |
Relay Output | 1 Output (3.7kW and above: 2 Relay output) | |
Analog output | 2 Output, one is 0~10V, another is 0~20mA or 0~10V | |
Keypad | Display:5-digit 8-section LED (Red), 2 indicators; parameter setting: 8 keys (including multi-function hot key ), 1 potentiometer | |
Technical performance characteristics | Control mode | All digital space voltage vector SVPWM algorism |
Overload capacity | G purpose: 150% rated current 60s P purpose: 120% rated current 60s | |
Speed ratio | 1: 100 | |
Carrier frequency | 1.0~10.0kHz | |
Torque compensation | Linear, multi-point, 1.3th power, 1.7th power, 2.0th power reduced torque; Compensation voltage range: automatic compensation and manual compensation 0.1~10% | |
Automatic voltage adjustment | It can automatically maintain output voltage constant when grid voltage fluctuates. | |
Automatic current adjustment | When the current is over current limit, under clocking automatically limits output current. | |
Function characteristics | Frequency setting mode | Keypad digital analog input, keypad potentiometer, impulse frequency, communication, multi-step speed and simple PLC, PID setting and so on, switch-over of setting modes. |
Simple PLC, multi-step speed control | 16-step speed control | |
Special function | Traverse control, length control, time control | |
QUICK/JOG key | User-defined multi-function hot key | |
Protection function | Over-current, Over voltage, under-voltage, over-heat, phase failure, over-load and motor over-load | |
Working condition | Installation site | Indoor, altitude of less than 1km, dust free, non-corrosive gases, no direct sunlight |
Application environment | -10°C~+40°C, 20~90%RH (no dew) | |
Vibration | Less than 0.5g | |
Storage temperature | -25°C~+65°C | |
Installation type | Wall-mounted type, floor cabinet type | |
Cooling mode | Air-forced cooling | |
- Q: When the inverter is running at full 50HZ, the output voltage decreases and the output current becomes smaller. What is the reason?
- However, when the frequency is raised, the current will decrease if the load is not large, especially when the motor is idle. The magnitude of the current is determined by the load. If you can add some load, you will see the current rise. Speaking of principles, can be understood as the motor is a big inductance, when the power frequency increases, the motor impedance Z will become larger, the impedance is large, the voltage is constant, the flow of the current will naturally be small,
- Q: Why does the frequency change when the frequency converter regulates the frequency?
- Because the product of three-phase asynchronous motor stator phase voltage and frequency and flux is proportional to the frequency when the downward adjustment, if the sustain voltage is constant, the flux must be increased, this will cause the main magnetic saturation excitation current passing, the surge in motor damage.As a result, the voltage is usually adjusted down proportionally as the frequency is lowered down.However, when adjusting the frequency, the voltage is not adjustable in order to avoid the excessive voltage damage of the motor. Therefore, in the use of frequency converter overclocking motor, the magnetic flux will decline, the motor output torque characteristics will move to the left.
- Q: PT100 temperature patrol instrument, when the converter is not open, the measurement is normal. Once opened, it shows completely disorder, and sometimes there are puzzling characters. How can I solve this problem? Please enlighten master!
- To clear the train of thought, in order to achieve the normal work of the temperature detector, it is impractical to test the inverter. So what we can do, basically, is shielding, filtering, grounding, and the like.
- Q: How do two inverters synchronize?
- One potentiometer is used to control one of the inverters, and then the analog output of the inverter is used to control another inverter, and a potentiometer is added to the middle of the converter to adjust the proportion.
- Q: What does "frequency" in household appliances mean?
- The new inverter refrigerator not only the reduction of power consumption, realize mute, and the use of high-speed operation can achieve substantial rapid freezing; in the washing machine, used frequency variable speed control, improve washing performance, washing machine popular in addition to saving energy and silent, still ensure soft clothing washing and other aspects of the introduction of control new content;
- Q: How to maintain the frequency converter will not damage, or regular maintenance?
- 1. cooling fan, inverter power module is the most serious heating device, the continuous heat generated by the work must be promptly discharged, the general fan life of about 10Kh-40Kh. According to the continuous operation of converter for 2-3 years, it is necessary to replace the fan2. filter capacitor, intermediate circuit filter capacitor: also called electrolytic capacitor, its main function is to smooth the DC voltage, absorb the low-frequency harmonic in dc.
- Q: Is the voltage low? The younger brother is bored to death, no problem with the wire drawing machine, the full load will jump off. Display frequency converter overload and acceleration operation overcurrent. Help me please.
- The difference between the display value and the measured value shows that the bus detection circuit is abnormal if the deviation is larger. Conversely, if the two value deviation is minimal or equal, the missing phase signal is abnormal. At present, there are two kinds of bus detection circuit used in our company: resistance voltage divider and operation comparison amplification (TL082). Corresponding to the detection circuit output 0 - 3.3V corresponds to the actual bus 0 - 1000V, the two circuits are relatively simple, maintenance only need to test the key point voltage in the circuit, you can easily find the fault point.
- Q: Frequency converter OC alarm, what's the matter?
- The frequency at which the OC fault occurs in all faults of the inverter may be the highest and the most frequent. In the process of starting the alarm, in the process of stopping the alarm, alarm in operation, so that power on the alert, and even with other fault codes or currentIndirectly tell you that there is a OC fault in this inverter!
- Q: What are the contents of frequency converter maintenance?
- Regular maintenanceClean air filter, cooling air duct and interior dust. Check whether the screws, bolts and plug are loose, the input and output reactor ground and interphase resistance is short circuit, the normal should be more than tens of megabytes of europe. The conductor and insulator are corrosion phenomenon, if in time to wipe clean with alcohol. If the conditions permit, use the oscilloscope to measure the stability of the switching power supply output voltage, such as: 5V, 12V, 15V, 24V and other voltage. Is there any distortion in the square wave of the measuring circuit?. Is the UVW phase waveform sinusoidal?. The contact of a contactor whether traces the strike, serious to change with the same or greater than the original capacity of new products; confirm the correctness of the control voltage, the order of protection test; confirm that there is no abnormal loop protection; confirm the balance of the inverter output voltage in a single run time.
- Q: What do you mean by the capacity of the inverter and the capacity of the motor?
- Because the motor consumes active power and consumes reactive power, and the reactive power is also occupied, the motor with 70KW can only be usedThe power is known to everyone
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Frequency Inverter Single-phase 380V class 0.75KW
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 100000 pc/month
OKorder Service Pledge
OKorder Financial Service
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