(Discontinued) KD330 (0.4~630kW) Variable Frequency Drive

Features

Variable Frequency Drive: Introduction
Fully new design
High performance frequency inverter
3AC 220~240V / 0.75~75kW
3AC 380~460V / 0.75~630kW
V/f, Sensorless Vector Control(SVC)
Latest generation IGBT inside
150%/120s, 160%/60s, 180%/10s
Widely applied in different applications
Smart start/sttop
C3 level filter build-in
Sufficient input & output terminals
Reliable speed tracking restart performance

(Discontinued) KD330 (0.4~630kW) Variable Frequency Drive
Specifications
Features
Selection
Variable Frequency Drive: Specifications

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

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

Control Function

Torque control

  Torque control without PG

Wobble frequency control

  Multiple triangular-wave frequency control, special for textile

Timing/length/
counting control

  Timing/length/counting control function

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/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

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

 

Variable Frequency Drive: Features

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
Grouped pulse testing

Without failure under 4500V (better EMC performance).

7
Electrostatic testing

1. Noncontact conditions -- without failure under 10000V.
2. Under contact condition -- without failure under 5000V.

8
Unqualification during production

<0.03%

9
Total failure ratio at industrail sites

<0.5%

10
High overload capacity

150% / 120s, 160% / 60s, 180% / 10s, 200% /1s

11
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.

12
S ccure Acceleration / Deceleration mode

Better start stop performance.

13
Big start torque

0.5Hz/150% (V/f), 1Hz/150% (SVC)

14
Better stop performance

1. Current is limited smoothly while stoping;
2. Stops smoothly in very short time for heavy load applications.

15
Better input voltage flexibility

-15%~+15% without failure.

16
LED display

>7,5kW, two lines parameters dispaly, convenient for commissioning and operating.

17 LCD display
Under developing
18 EMC filter

C3 level EMC filter build-in standardly


Variable Frequency Drive: Selection

Inverter Model
Motor
Rated Input Current (A)
Rated Output Current (A)
kW
HP
     3AC 380~460V±15%
KD330-00075T4
0.75
1
3.4
2.8
KD330-00150T4
1.5
2
5
4.4
KD330-00220T4
2.2
3
6.5
5.8
KD330-00400T4
4
5
11
10
KD330-00550T4
5.5
7.5
14.6
13
KD330-00750T4
7.5
10
20.6
17
KD330-01100T4
11
15
26
25
KD330-01500T4
15
20
35
32
KD330-01850T4
18.5
25
38.5
37
KD330-02200T4
22
30
46.5
45
KD330-03000T4
30
40
62
60
KD330-03700T4
37
50
76
75
KD330-04500T4
45
60
92
90
KD330-05500T4
55
75
113
110
KD330-07500T4
75
100
157
152
KD330-09000T4
90
125
180
176
KD330-11000T4
110
150
214
210
KD330-13200T4
132
175
260
253
KD330-16000T4
160
210
310
304
KD330-18500T4
185
250
365
350
KD330-20000T4
200
260
385
380
KD330-22000T4
220
300
430
426
KD330-25000T4
250
330
485
465
KD330-28000T4
280
370
531
520
KD330-31500T4
315
420
620
585
KD330-35500T4
350
470
665
650
KD330-40000T4
400
530
785
725
KD330-45000T4
450
600
880
820
KD330-50000T4
500
660
960
900
KD330-56000T4
560
750
1050
1000
KD330-63000T4
630
840
1130
1100