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KD330N (0.75kW~630kW) Variable Frequency Drive

Variable Frequency Drive: Introduction
Fully new design
High performance Variable Frequency Drive
1AC 220~240V / 0.75kW~315kW
3AC 220~240V / 0.75kW~315kW
3AC 380~460V / 0.75kW~630kW
V/f, Sensorless Vector Control(SVC)
Latest generation IGBT inside
150%/120s, 160%/60s, 180%/10s Widely applied in different applications
Smart start/sttop
Built-in EMC filter
Sufficient input & output terminals
Reliable speed tracking restart performance

Collect
  • Specifications
  • Features

Variable Frequency Drive: Specifications

Technical IndexSpecification
Input voltage  1AC 220~240V±15%
  3AC 220~240V±15%
  3AC 380~460V±15%
Input frequency  50/60Hz±5%
Output voltage  0~rated input voltage
Output frequency  0~6000Hz
Control mode  V/f control
  Sensorless vector control
  Torque control
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.
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  0.5~16.0kHz, automatically adjusted according to
   temperature and load characteristics
Frequency accuracy  Digital setting: 0.01Hz
  Analog setting: maximum frequency ×0.05%
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
Braking unit  build-in standard.
DC braking  DC braking when starting and stopping
  DC braking frequency: 0.0Hz~maximum frequency
  Braking time: 0.0s~25.0s
Jog operation  Jog operation frequency: 0.0Hz~maximum frequency
  Jog acceleration/deceleration time: 0.1s~3600.0s
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
Torque control  Torque control without PG
Wobble frequency control  Multiple triangular-wave frequency control, special for textile
Timing/length/  Timing/length/counting control function
counting control
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.
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
LED display  Display frequency setting, output frequency, output voltage,
  output current, etc. Two lines display
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


Variable Frequency Drive: Features

Items
KD330N
Reliable hardware
Only first-class componens are built-in.
Rubust design
IGBT current > 2 times of inverter output current
Capacitor > 50uF/A
PCB aging test
100% test, 50°C, 12 hours.
Finished products aging test
100% test, 50°C, 24 hours.
Loading test
Two times, 100% tested:
1. After manufacturing.
2. After aging test.
Grouped pulse testing
Without failure under 4500V (better EMC performance).
Electrostatic testing
1. Noncontact conditions -- without failure under 10000V.
2. Under contact condition -- without failure under 5000V.
Unqualification during production
<0.03%
Total failure ratio at industrail sites
<0.5%
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.
S ccure Acceleration / Deceleration mode
Better start stop performance.
Big start torque
0.5Hz/150% (V/f), 1Hz/150% (SVC)
Better stop performance
1. Current is limited smoothly while stoping;
2. Stops smoothly in very short time for heavy load applications.
Better input voltage flexibility
-15%~+15% without failure.
LED display
two lines parameters dispaly, convenient for commissioning and operating.
LCD display
Under developing
EMC filterC3 level EMC filter build-in standardly


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