Frequency Converter for Medium and Small Power Motors

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PRODUCTS DETAILS

Basic Info.

Model NO.
A901
Link of Transformation
AC-DC-AC Variable-Frequency Drive
Nature of DC Power
Current Variable-Frequency Drive
Function
Simple Type, Textile Special, Constant Torque Universal Type
Brand
Rbca
Speed Ratio
1:100
Max.Output Frequency
2000Hz
Control Method
V/F Control
Communciation
485 Communication
Environment Temp.
-10-50 Degree C
Braking Unit
Build-in
Output Frequency
50Hz/60Hz
Kw Range
0.75kw-30kw
Transport Package
Export Seaworthy Package
Trademark
RBCA
Origin
China
HS Code
85044090
Production Capacity
2000/Month

Product Description



           
1.3 Product series
 
Voltage level Rated power (KW) Rated output current (A) Adapter motor (KW)
380V three-phase 0.75 2.3 0.75
1.5 3.7 1.5
2.2 5 2.2
4.0 9 4
5.5 13 5.5
7.5 17 7.5
11 24 11
15 33 15
18.5 39 18.5
22 45 22
30 62 30
37 75 37

INPUT rated voltage,
frequency
Three phase (4T# series ) 380V; 50/60Hz
Single phase ( 2 S# series ) 220 V; 50/60Hz
voltage allowed
Range of change
Three phase (4T# series ) 320V ~ 460V
Single-phase (2S# series ) 16 0V ~ 260 V
output Voltage 4T# series ; 0 ~ 460V
2S# series ; 0 ~ 260V
frequency Low frequency mode: 0~300Hz High frequency mode: 0~3000Hz
overload capacity Model G: 110% long-term 150% 1 minute 180% 5 seconds
P-type machine: 105% long-term 120% 1 minute 150% 1 second
control method V/F control, advanced V/F control, V/F separation control, current vector control
Control
 characteristics
Frequency setting
Resolution
Analog input 0.1% of maximum output frequency
digital setting 0.01Hz
Frequency accuracy analog input Within 0.2% of maximum output frequency
digital input Within 0.01% of the set output frequency
V/F Control V/F curve (voltage frequency characteristic) The reference frequency can be set arbitrarily between 5 and 600Hz, the multi-point V/F curve can be set arbitrarily, and various fixed curves such as constant torque, low reduction torque 1, low reduction torque 2, and square torque can also be selected.
Torque boost Manual setting: 0.0 to 30.0% of rated output
Automatic lifting: automatically determine the lifting torque according to the output current and combined with the motor parameters
Automatic current and voltage limiting No matter in the process of acceleration, deceleration or stable operation, the motor stator current and voltage are automatically detected, and they are suppressed within the allowable range according to a unique algorithm, minimizing the possibility of system fault tripping
  



    Control characteristics
Sensor-less vector control Voltage frequency characteristics Automatically adjust output voltage-frequency ratio according to motor parameters and unique algorithm
Torque characteristics Starting torque:
150% rated torque at 3.0Hz (VF control)
180% rated torque at 0.5Hz (current vector control without PG, flux vector control)
180% rated torque at 0.05Hz (with PG current vector control)
Steady-state accuracy of running speed: ≤±0.2% rated synchronous speed
Speed fluctuation: ≤±0.5% rated synchronous speed
Torque response: ≤50ms with PG vector control, no PG vector control, magnetic flux vector control ≤20ms
Motor parameter self-determination Without any restriction, the automatic detection of parameters can be completed under the static and dynamic conditions of the motor to obtain the best control effect
Current and Voltage Rejection Full current closed-loop control, completely avoid current impact, with perfect over-current and over-voltage suppression function
running
Under-voltage suppression
Especially for users with low grid voltage and frequent grid voltage fluctuations, even if the voltage is lower than the allowable voltage range, the system can maintain the longest possible running time according to the unique algorithm and residual energy distribution strategy
Typical function multi-speed and
Wobble operation
16-segment programmable multi-segment speed control, multiple operation modes are optional. Wobble frequency operation: preset frequency, center frequency adjustable, state memory and recovery after power failure
PID control
RS485 communication
Built-in PID controller (preset frequency). Standard configuration RS485 communication function, a variety of communication protocols are optional, with linkage synchronization control function
Frequency setting analog input DC voltage 0~10V, DC current 0~20mA (upper and lower limit optional)
digital input Operation panel setting, RS485 interface setting, UP/DW terminal control, and various combination settings with analog input
output signal digital output 2 OC outputs and 1 fault relay output (TA, TB, TC), up to 16 meaning options
Analog output 2 channels of analog signal output, the output range can be set flexibly between 0~20mA or 0~10V, which can realize the output of physical quantities such as set frequency and output frequency
Automatic voltage stabilization operation According to your needs, you can choose three ways: dynamic voltage regulation, static voltage regulation, and unregulated voltage to obtain the most stable operation effect.
acceleration, deceleration
time setting
0.1s~3600min can be set continuously, S type and linear mode are optional
brake Dynamic braking The starting voltage of dynamic braking, hysteresis voltage and dynamic braking rate are continuously adjustable
DC braking Start frequency of DC braking at stop: 0.00~F0.16upper limit frequency
Braking time: 0.0~100.0s; Braking current: 0.0%~150.0% rated current
Flux Brake 0~100 0: Invalid
low noise operation The carrier frequency is continuously adjustable from 1.0KHz to 16.0KHz to minimize motor noise
Speed tracking speed
restart function
It can realize smooth restart of running motor and restart after momentary power failure
counter One internal counter for easy system integration
run function Upper and lower limit frequency setting, frequency jump operation, reverse operation limit, slip frequency compensation, RS485 communication, frequency increase and decrease control, fault self-recovery operation, etc.



1.4 Product technical indicators and specifications
INPUT rated voltage,
frequency
Three phase (4T# series ) 380V; 50/60Hz
Single phase ( 2 S# series ) 220 V; 50/60Hz
voltage allowed
Range of change
Three phase (4T# series ) 320V ~ 460V
Single-phase (2S# series ) 16 0V ~ 260 V
output Voltage 4T# series ; 0 ~ 460V
2S# series ; 0 ~ 260V
frequency Low frequency mode: 0~300Hz High frequency mode: 0~3000Hz
overload capacity Model G: 110% long-term 150% 1 minute 180% 5 seconds
P-type machine: 105% long-term 120% 1 minute 150% 1 second
control method V/F control, advanced V/F control, V/F separation control, current vector control
Control
 characteristics
Frequency setting
Resolution
Analog input 0.1% of maximum output frequency
digital setting 0.01Hz
Frequency accuracy analog input Within 0.2% of maximum output frequency
digital input Within 0.01% of the set output frequency
V/F Control V/F curve (voltage frequency characteristic) The reference frequency can be set arbitrarily between 5 and 600Hz, the multi-point V/F curve can be set arbitrarily, and various fixed curves such as constant torque, low reduction torque 1, low reduction torque 2, and square torque can also be selected.
Torque boost Manual setting: 0.0 to 30.0% of rated output
Automatic lifting: automatically determine the lifting torque according to the output current and combined with the motor parameters
Automatic current and voltage limiting No matter in the process of acceleration, deceleration or stable operation, the motor stator current and voltage are automatically detected, and they are suppressed within the allowable range according to a unique algorithm, minimizing the possibility of system fault tripping
  



    Control characteristics
Sensor-less vector control Voltage frequency characteristics Automatically adjust output voltage-frequency ratio according to motor parameters and unique algorithm
Torque characteristics Starting torque:
150% rated torque at 3.0Hz (VF control)
180% rated torque at 0.5Hz (current vector control without PG, flux vector control)
180% rated torque at 0.05Hz (with PG current vector control)
Steady-state accuracy of running speed: ≤±0.2% rated synchronous speed
Speed fluctuation: ≤±0.5% rated synchronous speed
Torque response: ≤50ms with PG vector control, no PG vector control, magnetic flux vector control ≤20ms
Motor parameter self-determination Without any restriction, the automatic detection of parameters can be completed under the static and dynamic conditions of the motor to obtain the best control effect
Current and Voltage Rejection Full current closed-loop control, completely avoid current impact, with perfect over-current and over-voltage suppression function
running
Under-voltage suppression
Especially for users with low grid voltage and frequent grid voltage fluctuations, even if the voltage is lower than the allowable voltage range, the system can maintain the longest possible running time according to the unique algorithm and residual energy distribution strategy
Typical function multi-speed and
Wobble operation
16-segment programmable multi-segment speed control, multiple operation modes are optional. Wobble frequency operation: preset frequency, center frequency adjustable, state memory and recovery after power failure
PID control
RS485 communication
Built-in PID controller (preset frequency). Standard configuration RS485 communication function, a variety of communication protocols are optional, with linkage synchronization control function
Frequency setting analog input DC voltage 0~10V, DC current 0~20mA (upper and lower limit optional)
digital input Operation panel setting, RS485 interface setting, UP/DW terminal control, and various combination settings with analog input
output signal digital output 2 OC outputs and 1 fault relay output (TA, TB, TC), up to 16 meaning options
Analog output 2 channels of analog signal output, the output range can be set flexibly between 0~20mA or 0~10V, which can realize the output of physical quantities such as set frequency and output frequency
Automatic voltage stabilization operation According to your needs, you can choose three ways: dynamic voltage regulation, static voltage regulation, and unregulated voltage to obtain the most stable operation effect.
acceleration, deceleration
time setting
0.1s~3600min can be set continuously, S type and linear mode are optional
brake Dynamic braking The starting voltage of dynamic braking, hysteresis voltage and dynamic braking rate are continuously adjustable
DC braking Start frequency of DC braking at stop: 0.00~F0.16upper limit frequency
Braking time: 0.0~100.0s; Braking current: 0.0%~150.0% rated current
Flux Brake 0~100 0: Invalid
low noise operation The carrier frequency is continuously adjustable from 1.0KHz to 16.0KHz to minimize motor noise
Speed tracking speed
restart function
It can realize smooth restart of running motor and restart after momentary power failure
counter One internal counter for easy system integration
run function Upper and lower limit frequency setting, frequency jump operation, reverse operation limit, slip frequency compensation, RS485 communication, frequency increase and decrease control, fault self-recovery operation, etc.
show Operation panel display run
state
Output frequency, output current, output voltage, motor speed, set frequency, module temperature, PID setting, feedback, analog input and output, etc.
Call the 
content
The last six fault records, the output frequency, set frequency, output current, output voltage, DC voltage, module temperature and other 6 operating parameters records when the latest fault trips
Protective function Overcurrent, overvoltage, undervoltage, module failure, electronic thermal relay, overheating, short circuit, input and output phase loss, abnormal motor parameter tuning, internal memory failure, etc.
surroundings ambient temperature -10ºC~+50ºC
ambient humidity 5%~95%RH, no condensation
surroundings Indoor (no direct sunlight, no corrosion, flammable gas, no oil mist, dust, etc.)
altitude Derate usage above 1000 meters, derate 10% for every 1000 meters rise
structure Protection class IP20
cooling method Air-cooled with fan control
Installation method wall-mounted, cabinet

Frequency Converter for Medium and Small Power Motors

 
Voltage level Inverter model Power (kw) Dimensions (mm) Installation size (mm) Packaging size (mm) Net weight (kg)
      W1 H1 D W2 H2 Φ long width high  
380V three-phase A901-4T0R75G 0.75 78 170 125 60 161 5 195 132 172 1.06
  A901-4T01R5G 1.5                   1.06
  A901-4T02R2G 2.2                   1.1
  A901-4T0004G 4 95 210 145 78 198 5 245 175 210 1.88
  A901-4T05R5G 5.5                   1.91
  A901-4T07R5G 7.5 140 240 178 130 230 5 300 210 250 3.14
  A901-4T0011G 11                   3.36


Frequency Converter for Medium and Small Power Motors Frequency Converter for Medium and Small Power Motors Frequency Converter for Medium and Small Power Motors Frequency Converter for Medium and Small Power Motors Frequency Converter for Medium and Small Power Motors Frequency Converter for Medium and Small Power Motors
Q 1: Are you trading company or manufacturer?
A1: We are MANUFACTURER

Q 2: How long is your lead time?
A2: Generally 3-7 days if the goods are in stock, or 15-20 days if the stocks are not enough, it is according to the order quantity.

Q3. What is your supply capacity?
A3: 400,000PCS/year.

Q4: What is the standard of package?
A4: Carton box or plywood case.

Q5: What's your warranty term?
A5: We offer 18 months warranty time.

Q6: What is your terms of payment ?
A6: We accept T/T (30% deposit, 70% balance), L/C, Western Union.

Q7: Do you provide samples? Is it free or extra ?
A7: Yes, we provide samples and charge for the samples with freight cost. The sample fees will be returned if the order quantity over 100pcs.

Q8:How does your factory control the quality?
A8:Quality is priority, we always attach importance to quality control from the beginning to the end of production, every product will be fully assembled and carefully tested before packing and shipping.

Q9: Can the inverter connect with computer?
A9: Yes. All inverters have built-in RS485 communication


Q10: Do you support OEM service?
A10: Yes, we support OEM. For some items we have MOQ. For more questions, feel free to send us inquiry.





 

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