Control technology

Adopts dual CPUs and advanced German technology to separate and process
drive signals and control signals, and the operation is more stable.

Characteristic control mode

The unique energy-saving mode can save more than 35% energy in fan
application

Anti voltage jitter function

In case of instantaneous power failure, the frequency converter can continue to
operate at a low frequency, with a maximum power failure time of 2.35 seconds

Circuit board protection

Full automatic protective coating equipment ,Each circuit board is coated with
protective layer at least twice

Factory load test aging

Each product shall be subject to 24-hour aging test with load before leaving the
factory, and the test contents include overload test, overvoltage test, overcurrent
test, etc

Simple PLC

Simple PLC program can be set according to customer application requirements,
with a high degree of customization

Fire mode

Suitable for fire protection applications

Multi-speed

Up to 16 speed settings are supported

Torque raise at low
frequency

To improve low frequency torque about 0.1% ~30% under V/f control and
sensorless speed vector control through raising voltage and torque.

V/f curve

Linear type or multi-point type

Acceleration and
deceleration curve

Linear type or Model S acceleration and deceleration; three groups acceleration
and deceleration time; time range for acceleration and deceleration range:
0~3200s.

Built-in PID

It is convenient to realize process control under close-loop control system.

DC brake

DC brake range: 0.0Hz~maximum frequency; brake time: 0.0s~20.0s; brake
action current value: 0%~100%.

Jog control

To realize instant start and instant stop; jog frequency setting range: 0.0~20.0Hz;
jog stop type: deceleration/ freedom/DC brake

Jump frequency

Available to set three jump frequency points and related jump frequency ranges
to avoid frequency inverter's running within this frequency band.

Two sets of motor
parameter switch

Available to set two sets of motor parameter and could freely switch each other
in order to match currently droved motor

Protection for VFD

Input phase failure, output phase failure, under load monitor, over torque, under
voltage, over voltage, over current, over heat, short circuit among three phases

Protection for motor

Motor overheat, motor current limiting amplitude, motor over load, motor short
circuit

MainInput

Rated voltage and frequency

3-phaseVoltage:310V-480V , 50Hz/60Hz

Allowable value of change

Voltage: 310V-15% ~ 480V+10%; Frequency: ±15%

Main output

Output voltage

3 phase, 0~480V ±15%

Output frequency

0.5Hz to 400Hz

Overload capacity

150% of rated output current for 60s, 200% of rated output
current for 2s

Control
performance

Modulation mode

3-phase PWM, 2-phase PWM

Control mode

V/f control for constant torque, V/f control for quadratic load,
vector control without PG (open loop control),Energy-saving

Setting method of run command

Outer terminal, keyboardpanel or serial communication

Setting method of speed
command

Analog setting, keyboard, serial communication, UP/DOWN
speed setting from external terminal

Speed setting resolution

Keyboard: 0.1 Hz

Analog setting: 0.05/50Hz (10bit)

Speed control precision

V/f control:±2%

vector control without PG (open loop control) ±0.2%

Speed control range

V/f control 1:40

vector control without PG (open loop control) 1:200

Acceleration and
DecelerationTime

0-3200.0s

switching frequency

Analog input

Number

2 ways: AI1,AI2

Type

DC voltage or DC current

Maximum input range

AI1: 0 to 5VDC, 0 to 10VDC, 0/4 to 20mA DC receivable AI2:
0 to 10VDC or PTC probe input receivable

Analog output

Number

2way: AO1, AO2

Type

DC voltage or DC current

Maximum input range

Voltage output: 0 to 10V, Current output: 0/4 to 20mA

logic input

Number

0.75kW-11kW15KW-800KW:LI,LI2,LI3,LI4,LI5,LI6,LI7,LI8

Type

Source or Sink

Maximum input range

0-24VDC

logic output

Number

pulse signal output(LO-CLO), relay output 1,2(T1A
T1B-T1C,T2A-T2B-T2C)

pulse signal output

OC,output frequency,,act other function

relay output

RA-RB-RC, including a NO contact and a NC
contactMaximum switch capacity:T1A-TIC/T2A-T2C:5A
@250VAC, or 5A@30VDC T1B-T1C/T2B-T2C: 3A @250VAC
or 3A @30VDC

Serial communication interface

RS485 interface supports Modbus protocol.

Display

Two-lineLED digital display

For display of frequency setting, output frequency, fault code
and parameter setting etc.Lcd display is avarilable for 15kw
to 800kw VFDDisplay is moveble.

Environment

Standard

Development of D32series frequency inverter follows strict
international standards and relevant recommended IEC and
EN standards for control devices, especially IEC/EN61800-5-
1 and IEC/EN61800-3.

Altitude

Dreading unnecessary when altitude is 1000m or below
(Dreading necessary at altitude higher than 1000m)

Ambient environment

0.75kW-800kW: Reliable operation at -10 ~ 50°Cwithout
debating. When top protective cover is taken off, the
environment temperature can be as high as +50 °C. Above
+50 °C, the current drops by 2.2% for each rise of 1 °C in
temperature. Storage: -25~ 70°C

Humidity

No condensed water or drip at 5 ~ 95%, In accordance with
IEC60068-2-3

Impact strength

15gn for continuous 11ms, In accordance with IEC/EN60068-
2-27

Maximum antipollution capacity

Class 2, in accordance with IEC/EN61800-5-1

Structure

Protection level

0.75kw-15kw: IP20
18.5kw-160kw: IP40
185kw-800 kw: IP20

Cooling Method

Forced Air cooling

Installation method

Wall mounted