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3 Phase Open loop AC Variable Frequency Drive 220V / 380V / 660V

3 Phase Open loop AC Variable Frequency Drive 220V / 380V / 660V

Place of Origin : China
Brand Name : UniMAT
Certification : CE
Model Number : UT533-1R5G1-1XA0
MOQ : 1pcs
Packaging Details : Carton
Delivery Time : one week
Payment Terms : TT in advance
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3 Phase VFD Variable Frequency Drive 1.5KW UT533-1R5G1-1XA0

1) Quick description :

  1. No encoder vector control, torque response speed≤20ms,
  2. No encoder vector control, torque control accuracy ±1%,
  3. No encoder vector control, 150% rated torque at 1Hz,
  4. Widely voltage range, allowable voltage swing range is ±15%,
  5. High overload capacity, 150% rated currency 60 seconds, 180% rated currency 2 seconds, 200% instantaneous trip

2) Detail description :

Tech. Specification



Power Input

Voltage, frequency

single phase 220V, 3 phase,

220V,380V, 660V and 11140V

Allowable fluctuations

Voltage:<±15%; frequency±5%
Distortion of voltage to confirm to IEC61800-2

Closing striking current

less than rated current

Power Factor

≥0.94( integrated DC reactor)



Power Output

Output Voltage

3 Phase, 0~Input voltage, tolerance less

than 5% in standard rating condition

Frequency Control Range

G type: 0 to 400Hz, P type: 0-400Hz,

Z type: 0-400Hz,

L type: 0-400Hz,

H type: 0-3000Hz.

Output frequency accuracy

±5% of maximum frequency

Overload Tolerance

Z type: 150% rated current for 60 sec,

180% rated current for 30 sec, 250% rated

current for instantaneous

G, H, L type model: 150% of rated output

current for 60 sec,180% of rated current for 10s, 2 00% of rated

current for instantaneous

P type: 120% rated current 60 sec, 150% rated

current for instantaneous

Key Control performance

Motor Control Mode

Open loop sensorless vector control without PG,

V/F control

Control system

Optimized Space Vector PWM Modulation

Carrier frequency

0.6~ 15kHz, Randomly-modulated carrier

Speed control range

OLV without PG with rated load: 1:100,

Stable speed control accuracy

OLV without PG: less than 1% rated

synchronous speed

Torque response

OLV without PG control mode: ≤20ms

Frequency Accuracy
(Temperature Fluctuation)

Digital inputs: maximum × ±0.01%
Analog inputs: maximum × ± 0.2%

Frequency Setting Resolution

Digital inputs: 0.01 Hz
Analog inputs: 0.5% of maximum

output frequency

Standard Function

DC Braking

Starting Frequency: 0.00 to 50.00Hz,
Braking Time: 0.0 to 60.0s
Braking current: 0.0 to 150% rated current

Torque boost

Auto torque boost:0.0% to 100%
Manual torque boost: 0.0% to 25%

V/F curve

5 kinds curve programmable setting:1 user setting,

1 of linear characteristic torque curve setting.

3 kinds derating torque setting

( 1.5 power, 1.7 power,

2.0 Power curve )

Accel / Decel. curve

Two kinds curve: line Accel/Decel, S curve

4 Accel/Decel time unit is 0.1s, maximum

time 6500.0s

Rated output voltage

Power voltage compensation is available,

setting range

from 50 to 100%( rated voltage),

the output voltage can't

over than input

AVR Auto Voltage


automatic voltage regulation for keeping

output voltage

stable when fluctuation of grid

Auto energy saving


Optimized the output voltage according

the load to achieve energy saving

Auto current limit

Auto current limit during running mode

to avoid trip

occurs frequently

Momentary Power

Loss with

no stop running


To achieve continuous running with r

egenerative energy and DC bus voltage


when momentary

power loss

Standard Function

PID control, Carrier frequency adjustable,

current limiter, Speed Search, Momentary

Power Loss

restart,8 Step Speed (max), 3-wire Sequence,

Slip Compensation, Frequency Jump, Upper/lower

Limits for Frequency Reference, DC Injection

Braking at Start and Stop, Energy Saving Control,

Modbus Comm

RS485, Fault Restart, job function, Cooling

Fan on/off

Switch, timing stop, high pulse output,


auto running, swing frequency, counter,


arriving detect and frequency lever detect.


Setting Methods

Keypad digital setting, potentiometer of keypad,

analog voltage terminal VS1, analog voltage t

erminal VS2, analog current terminal AS, RS485


and multiple terminal, main and auxiliary



Feedback Input


voltage terminal VS1, VS2, current terminal AS,

communication , and pulse input PUL

Running command


keypad given, external terminal given,



Input command


Start, Stop, FEW/Reverse, Job, Multiple speed,

free stop,

Reset, Accel/Decel time, Frequency

set point channel,

External fault

Output signal

2 Photo coupler relays: 2 (24 V, up to 50 mA)
1 Contact relays: 1 (250 Vac/up to 1 A,

30 Vdc/up to 1 A)
0-10V output, 4 to 20mA output
Frequency pulse output

Protection function

Overvoltage, under voltage, current limit,

over current,

overload, electric thermal relay, overheat,

Stall prevention, parameter lock

keypad Display

LED Display

One line digit-segments LED display to monitor

1 running status

Double line digit-segment display to monitor

1 running


Parameters copy

upload and download parameter code to

achieve easy copy

Monitor Function

Output frequency, Frequency set point,

Out current,Output voltage, motor speed,

PID feedback value,

PID given setting, IGBT module temperature,

I/O terminal status.


Overvoltage, under voltage, over current, short


phase loss, over load, over heat, stall prevention,

current limit, parameter lock damage, running


at present alarm, past trip alarm


Installation Site

Indoor, Altitude should less than 1000m,

Free corrosive

gases and direct sunlight

Running Temperature,


-10~+40°C ( wall mounting),
20% to 95% RH (No condensation)


Less than 0.5g when frequency less than 20Hz

Storage Temperature


Installation mode

Wall-mounted mode, floor stand cabinet install

Protection Degree


Cooling Method

Forced air-cooling

3) Product Packing

4) Certificate
5) Installation
The whole series use DC Fan, easily replacement, longer life. Penetrable installation has strong adaptability.

Cabinet uses up and down design, standard reactors are installed in the base, to ensure better cooling,

improve the application life and good wiring.

Product Tags:

Vector Control VFD


variable frequency drive

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