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UV 21 SERIES single phase variable frequency drive vfd

Product Summary

* Four control modes: constant torque V/f, quadratic load V/f, vector control without PG sensor, energy saving mode
Compact design, exquisite and practical
* Overload capacity: 150% rated output current for 60s, 200% rated output current for 2s
Built-in Modbus communication interface
* The panel can be externally connected, easy to use
PCB coating to resist harsh application environments
* The side of the plastic shell product has a removable protective plate,
which supports side-by-side installation
* High-performance vector control using flux and speed
estimation technology
* Wide voltage range design ensures product adaptability
to grid fluctuations
* Advanced independent air duct design, adaptable to
various complex and harsh on-site environments

Strong and Weak Electrical Isolation Design
Adopt srtong & weak electrical isolation Design, to avoid magnetic field
interference and increase service lift.

Heat Dissipation Structure
Independent cooling duct optimization design, from the
original right angle optimization to rounded corner, reduce
the thermal disk accumulation, greatly increase the
efficiency of heat dissipation.

Appearance size:
Product configuration:
Basic application functions
Low frequency torque boost The voltage boost and torque boost can increase the low-frequency torque of V/F
control and speed sensorless vector control by about 0.1%~30.0% respectively.
V/F Curve Linear type, multi-point type
Acceleration
and deceleration curve		 Linear or S-shaped acceleration and deceleration; three sets of acceleration and
deceleration time; acceleration and deceleration time range: 0-3200s
Automatic Voltage Regulation (AVR) When the grid voltage changes, it can automatically keep the output voltage constant
Built-in PID Closed-loop control system that can easily realize process control
DC braking DC braking range: 0.0Hz-maximum frequency; braking time: 0.0s-20.0s
Braking action current value: 0%-100%
Jog control The motor can be started and stopped immediately; the inching frequency setting
range is: 0.0-20.0Hz
Inching stop mode: deceleration/free/DC braking
Frequency Hopping You can set 3 frequency hopping points and the corresponding frequency hopping
range to prevent the inverter from running within the frequency band.
Multi-speed Up to 15 operating frequencies can be set via 4 logic input ports
Input Sum The algebraic operation result of 2 analog inputs is used as the frequency setting,
making the frequency setting more flexible
2 sets of motor parameter switching Two sets of motor parameters can be set and switched freely to match the currently
driven motor
Inverter protection Input/output phase loss protection, underload detection, over-torque protection,
undervoltage protection, overvoltage protection, overcurrent protection, overheating
protection, phase short circuit protection
Motor protection Motor thermal protection, motor current limiting, motor overload, motor short circuit
Electrical characteristics
Input voltage Three-phase AC, 380-480V, 50/60Hz or single-phase AC, 200-240V, 50/60Hz
Output voltage 0-100% input voltage, 0.5Hz - 400Hz
Control Mode Constant torque V/F, quadratic load V/F, sensorless vector control, energy-saving mode
On-off level 1.5kHz - 12kHz
The automatic switching frequency adjustment function can be set: when the
temperature rises, the switching frequency is automatically reduced
After the temperature returns to normal, the switching frequency returns to the initial value
Overcurrent capability 150% rated output current for 60s, 200% rated output current for 2s
Control signal
Frequency setting signal Integrated operating panel Membrane switch (button), speed knob (potentiometer)
External Signal UP/DOWN setting, analog input, multi-speed, external panel, serial communication
Start-stop
control signal		 Integrated operating panel RUN, STOP buttons
External Signal Logic input terminal, external panel, serial communication
Protective function
Inverter protection Input phase loss protection, output phase loss protection, underload detection,
over-torque protection, undervoltage protection, overvoltage protection, overcurrent
protection, overheating protection, phase short circuit protection
Motor protection Motor thermal protection, motor current limiting, motor overload, motor short circuit
Control circuit characteristics
Internal power
supply available		 10V
24V		 10VDC ±5%, maximum current 10mA, for reference potentiometer
24VDC ±5%, maximum current 100mA, for logic input port
Analog Input AI1 Voltage analog input: 0-5VDC, or 0-10VDC, impedance 30k
Current analog input: 0/4-20mADC, impedance 250Ω
Resolution: 10-bit A/D conversion
Factory default setting: 0-5VDC voltage input
AI2 Voltage analog input: 0-10VDC, or PTC probe input
Resolution: 10-bit A/D conversion
Logic Input LI1-LI8 0-24VDC power supply
Positive logic (source), negative logic (sink) are optional, the factory default is
negative logic
69 functions are available, including forward, reverse, running, fault reset,
multi-speed, etc.
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 6 circuits: LI1-LI6
AI1,AI2
Enforce valid input		 In inverters below 11kW (inclusive), AI1 and AI2 can be set as logic inputs.
f309 and f310 are mandatory valid inputs, and their configuration functions
are always valid during power-on.
Analog Output AO1,AO2 Voltage analog output: 0-10VDC, minimum load impedance is 470Ω
Current analog output: 0/4-20mA, maximum load impedance is 700Ω
Resolution: 8 bits
Output frequency, output current, speed setting, serial output data Multiple
functions available
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 1 analog
output, namely AO1
Logic Output LO,CLO Open collector, maximum current 100mA, maximum voltage 30VDC
Logic output or pulse output is optional, the factory default setting is logic output
Output frequency, output current, speed setting and other output functions are
optional
Relay output T1A,T1B,T1C
T2A,T2B,T2C		 T1A is normally open, T1B is normally closed, T1C is a common point
T2A is normally open, T2B is normally closed, T2C is a common point
Contact rating: 5A @ 250VAC, 5A @ 30VDC
Fault, alarm, set frequency arrival and other functions are optional
T1A defaults to failure, T2A defaults to operation
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 1 relay output,
namely T1A-T1B-T1C
 
Serial Communication MODBUS-RTU, 2-wire RS-485, terminal interface
Environmental characteristics
Protection level  IP20 environment humidity 95% no condensation
or water accumulation
Working temperature/storage temperature "- 10~40ºC /- 20~60ºC Altitude Below 1000m
cooling method Forced air cooling Installation location Indoor
UniMAT

UV 21 SERIES single phase variable frequency drive vfd

Product Summary

* Four control modes: constant torque V/f, quadratic load V/f, vector control without PG sensor, energy saving mode
Compact design, exquisite and practical
* Overload capacity: 150% rated output current for 60s, 200% rated output current for 2s
Built-in Modbus communication interface
* The panel can be externally connected, easy to use
PCB coating to resist harsh application environments
* The side of the plastic shell product has a removable protective plate,
which supports side-by-side installation
* High-performance vector control using flux and speed
estimation technology
* Wide voltage range design ensures product adaptability
to grid fluctuations
* Advanced independent air duct design, adaptable to
various complex and harsh on-site environments

Strong and Weak Electrical Isolation Design
Adopt srtong & weak electrical isolation Design, to avoid magnetic field
interference and increase service lift.

Heat Dissipation Structure
Independent cooling duct optimization design, from the
original right angle optimization to rounded corner, reduce
the thermal disk accumulation, greatly increase the
efficiency of heat dissipation.

Appearance size:
Product configuration:
Basic application functions
Low frequency torque boost The voltage boost and torque boost can increase the low-frequency torque of V/F
control and speed sensorless vector control by about 0.1%~30.0% respectively.
V/F Curve Linear type, multi-point type
Acceleration
and deceleration curve		 Linear or S-shaped acceleration and deceleration; three sets of acceleration and
deceleration time; acceleration and deceleration time range: 0-3200s
Automatic Voltage Regulation (AVR) When the grid voltage changes, it can automatically keep the output voltage constant
Built-in PID Closed-loop control system that can easily realize process control
DC braking DC braking range: 0.0Hz-maximum frequency; braking time: 0.0s-20.0s
Braking action current value: 0%-100%
Jog control The motor can be started and stopped immediately; the inching frequency setting
range is: 0.0-20.0Hz
Inching stop mode: deceleration/free/DC braking
Frequency Hopping You can set 3 frequency hopping points and the corresponding frequency hopping
range to prevent the inverter from running within the frequency band.
Multi-speed Up to 15 operating frequencies can be set via 4 logic input ports
Input Sum The algebraic operation result of 2 analog inputs is used as the frequency setting,
making the frequency setting more flexible
2 sets of motor parameter switching Two sets of motor parameters can be set and switched freely to match the currently
driven motor
Inverter protection Input/output phase loss protection, underload detection, over-torque protection,
undervoltage protection, overvoltage protection, overcurrent protection, overheating
protection, phase short circuit protection
Motor protection Motor thermal protection, motor current limiting, motor overload, motor short circuit
Electrical characteristics
Input voltage Three-phase AC, 380-480V, 50/60Hz or single-phase AC, 200-240V, 50/60Hz
Output voltage 0-100% input voltage, 0.5Hz - 400Hz
Control Mode Constant torque V/F, quadratic load V/F, sensorless vector control, energy-saving mode
On-off level 1.5kHz - 12kHz
The automatic switching frequency adjustment function can be set: when the
temperature rises, the switching frequency is automatically reduced
After the temperature returns to normal, the switching frequency returns to the initial value
Overcurrent capability 150% rated output current for 60s, 200% rated output current for 2s
Control signal
Frequency setting signal Integrated operating panel Membrane switch (button), speed knob (potentiometer)
External Signal UP/DOWN setting, analog input, multi-speed, external panel, serial communication
Start-stop
control signal		 Integrated operating panel RUN, STOP buttons
External Signal Logic input terminal, external panel, serial communication
Protective function
Inverter protection Input phase loss protection, output phase loss protection, underload detection,
over-torque protection, undervoltage protection, overvoltage protection, overcurrent
protection, overheating protection, phase short circuit protection
Motor protection Motor thermal protection, motor current limiting, motor overload, motor short circuit
Control circuit characteristics
Internal power
supply available		 10V
24V		 10VDC ±5%, maximum current 10mA, for reference potentiometer
24VDC ±5%, maximum current 100mA, for logic input port
Analog Input AI1 Voltage analog input: 0-5VDC, or 0-10VDC, impedance 30k
Current analog input: 0/4-20mADC, impedance 250Ω
Resolution: 10-bit A/D conversion
Factory default setting: 0-5VDC voltage input
AI2 Voltage analog input: 0-10VDC, or PTC probe input
Resolution: 10-bit A/D conversion
Logic Input LI1-LI8 0-24VDC power supply
Positive logic (source), negative logic (sink) are optional, the factory default is
negative logic
69 functions are available, including forward, reverse, running, fault reset,
multi-speed, etc.
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 6 circuits: LI1-LI6
AI1,AI2
Enforce valid input		 In inverters below 11kW (inclusive), AI1 and AI2 can be set as logic inputs.
f309 and f310 are mandatory valid inputs, and their configuration functions
are always valid during power-on.
Analog Output AO1,AO2 Voltage analog output: 0-10VDC, minimum load impedance is 470Ω
Current analog output: 0/4-20mA, maximum load impedance is 700Ω
Resolution: 8 bits
Output frequency, output current, speed setting, serial output data Multiple
functions available
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 1 analog
output, namely AO1
Logic Output LO,CLO Open collector, maximum current 100mA, maximum voltage 30VDC
Logic output or pulse output is optional, the factory default setting is logic output
Output frequency, output current, speed setting and other output functions are
optional
Relay output T1A,T1B,T1C
T2A,T2B,T2C		 T1A is normally open, T1B is normally closed, T1C is a common point
T2A is normally open, T2B is normally closed, T2C is a common point
Contact rating: 5A @ 250VAC, 5A @ 30VDC
Fault, alarm, set frequency arrival and other functions are optional
T1A defaults to failure, T2A defaults to operation
220V 0.4kw-2.2kw and 380V 0.4kw-0.75kw products only have 1 relay output,
namely T1A-T1B-T1C
 
Serial Communication MODBUS-RTU, 2-wire RS-485, terminal interface
Environmental characteristics
Protection level  IP20 environment humidity 95% no condensation
or water accumulation
Working temperature/storage temperature "- 10~40ºC /- 20~60ºC Altitude Below 1000m
cooling method Forced air cooling Installation location Indoor
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