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| Categories | Vector Frequency Inverter |
|---|---|
| Place of Origin: | China |
| Brand Name: | Kinda |
| Model Number: | KD330 |
| MOQ: | Negotiable |
| Price: | Negotiable |
| Delivery Time: | 3~8 Day |
| Payment Terms: | TT |
| Supply Ability: | Adequate inventory |
| start up: | Simple parameter setting, one-button start automatic addition and subtraction pump control |
| run: | Smooth main/slave switching, no change in water pressure |
| installation: | Simple wiring installation |
| control: | Main/slave control energy saving |
| design: | Modular design, compact structure, easy maintenance and enhanced product interchangeability |
| PCB protection: | Spray three anti-paint to protect the circuit board intelligently and efficiently |
Water Pump Vector Frequency Inverter 3AC 380V 45KW ~ 75KW
When the water supply automatic control system works, the equipment
detects the pressure change of the water supply pipe network when
the water consumption changes through the high-sensitivity pressure
sensor installed on the water supply pipe network, and continuously
transmits the changed signal to the inverter, and judges the
operation and setting by the microcomputer. After the pressure is
compared, the controller sends a command to change the frequency.
The controller changes the speed of the water pump motor and the
number of enabled pumps by changing the frequency, automatically
adjusting the peak and valley water consumption, and ensuring the
water supply pipe network pressure is constant to meet the user's
water demand.
| Item | Technical Index | Specification |
| Input | Input voltage | 1AC 220~240V±15% |
| 3AC 220~240V±15% | ||
| 3AC 380~460V±15% | ||
| Input frequency | 50/60Hz±5% | |
| Output | Output voltage | 0~rated input voltage |
| Output frequency | 0~6000Hz | |
| Control Features | Control mode | V/f control |
| Sensorless vector control | ||
| Torque control | ||
| Overload capacity | 150% / 120s, 160% / 60s, 180% / 10s, 200% / 1s. | |
| Starting torque | 0.5Hz/180% (SVC); 1Hz/150% (V/f) | |
| Speed control precision | ±0.5% (SVC) | |
| Carrier frequency | temperature and load characteristics 0.5~16.0kHz, automatically adjusted according to | |
| Frequency accuracy | Digital setting: 0.01Hz | |
| Analog setting: maximum frequency ×0.05% | ||
| Operation command mode | Keypad control | |
| Terminal control | ||
| Serial communication control (Modbus) | ||
| Frequency setting mode | Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combinated & switched in various modes. | |
| Torque boost | Automatically torque boost; manually torque boost: 0.1%~30.0 | |
| V/f curve | Three types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square) | |
| Acceleration/deceleration mode | Straight line/S curve; four kinds of acceleration/deceleration | |
| time, range: 0.0s~65000s | ||
| Simple PLC & multi-step speed operation | It can realize a maximum of 16 multi-step speeds running via the built-in PLC or control terminal. | |
| Built-in PID | Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.) | |
| Automatic voltage regulation | Keep output voltage constant automatically when input voltage fluctuating | |
| Control Function | Over-voltage & over-current stall control | Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping |
| Wobble frequency control | Multiple triangular-wave frequency control, special for textile | |
| Timing/length/counting control | Timing/length/counting control function | |
| Fault protection function | Comprehensive protections include over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running data while failures happen. | |
| Input/output terminals | Input terminals | Programmable digital input: 7 multifunctional inputs, one can be work as high speed pulse input.3 programmable analog input:AI1, AI2, AI3: 0~10V / 4~20mA |
| Output terminals | 2 relay outputs, | |
| 2 open collector outputs, | ||
| 2 anaalog outputs, 0~10V / 4~20mA | ||
| Communication terminals | Build-in standard RS485 communication interface, support MODBUS-RTU communication protocol | |
| Environment | Ambient temperature | -10~50°C, without direct sunshine. |
| Humidity | 90%RH or less (non-condensing) | |
| Altitude | ≤1000M: output rated power, >1000M: output derated | |
| Storage temperature | -20~60°C | |
| No | Items | KD330 |
| 1 | Reliable hardware | Only first-class componens are built-in. |
| 2 | Rubust design | IGBT current > 2 times of inverter output current |
| Capacitor > 50uF/A | ||
| 3 | Electrostatic testing | 1. Noncontact conditions -- without failure under 10000V. |
| 2. Under contact condition -- without failure under 5000V. | ||
| 4 | High overload capacity | 150% / 120s, 160% / 60s, 180% / 10s, 200% /1s |
| Smart start / stop mode | Acceleration / Deceleration time can be set as 0.0s, the inverter starts and stops the motor as fast as possible without failure. | |
| 5 | Loading test | Two times, 100% tested: |
| 1. After manufacturing. | ||
| 2. After aging test. | ||
| 6 | Big start torque | 0.5Hz/150% (V/f), 1Hz/150% (SVC) |
| 7 | LED display | >7,5kW, two lines parameters dispaly, convenient for commissioning and operating. |
|
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