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| Categories | AC Variable Frequency Drive |
|---|---|
| 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 |
| 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 |
| installation: | Simple wiring installation |
| control: | Main/slave control energy saving |
| run: | Smooth main/slave switching, no change in water pressure |
| start up: | Simple parameter setting, one-button start automatic addition and subtraction pump control |
Water Pump AC Variable Frequency Drive 3AC 380V 90KW ~ 132KW
The inverter transmits the changed signal, and after the microcomputer judges the calculation and compares with the set pressure, it sends a command to change the frequency to the controller. The controller changes the speed of the water pump motor and the number of enabled pumps by changing the frequency, and automatically adjusts the peak and valley water consumption. To ensure that the pressure of the water supply network is constant to meet the needs of users
| 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 frequency | 0~6000Hz |
| Output voltage | 0~rated input voltage | |
| Control Features | 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. | |
| Control mode | V/f control | |
| Sensorless vector control | ||
| Torque control | ||
| Overload capacity | 150% / 120s, 160% / 60s, 180% / 10s, 200% / 1s. | |
| Frequency accuracy | Digital setting: 0.01Hz | |
| Analog setting: maximum frequency ×0.05% | ||
| Torque boost | Automatically torque boost; manually torque boost: 0.1%~30.0 | |
| 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 | |
| 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 | |
| DC braking | DC braking when starting and stopping | |
| DC braking frequency: 0.0Hz~maximum frequency | ||
| Braking time: 0.0s~25.0s | ||
| Braking unit | build-in standard. | |
| 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. | |
| Jog operation | Jog operation frequency: 0.0Hz~maximum frequency | |
| Jog acceleration/deceleration time: 0.1s~3600.0s | ||
| 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 | Wobble frequency control | Multiple triangular-wave frequency control, special for textile |
| Torque control | Torque control without PG | |
| Over-voltage & over-current stall control | Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping | |
| 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. | |
| Timing/length/counting control | Timing/length/counting control function | |
| Input/output terminals | 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 | |
| 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 | |
| Human machine interface | LED display | Display frequency setting, output frequency, output voltage,output current, etc. Two lines display |
| 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 | PCB aging test | 100% test, 50°C, 12 hours. |
| 4 | Finished products aging test | 100% test, 50°C, 24 hours. |
| 5 | Loading test | Two times, 100% tested: |
| 1. After manufacturing. | ||
| 2. After aging test. | ||
| 6 | 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. |
| 7 | Grouped pulse testing | Without failure under 4500V (better EMC performance). |
| 8 | Electrostatic testing | 1. Noncontact conditions -- without failure under 10000V. |
| 2. Under contact condition -- without failure under 5000V. | ||
| 9 | Big start torque | 0.5Hz/150% (V/f), 1Hz/150% (SVC) |
| 10 | High overload capacity | 150% / 120s, 160% / 60s, 180% / 10s, 200% /1s |
| 11 | LED display | >7,5kW, two lines parameters dispaly, convenient for commissioning and operating. |
| 12 | EMC filter | C3 level EMC filter build-in standardly |
|
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