1.Company profile
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2 Product description
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3 Introduction of various parts of the converter
The structure types of JAC300 series converter are the plastic and metal. The external diagram is shown below.
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4 Basic technical specification
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
2 Product description

3 Introduction of various parts of the converter
The structure types of JAC300 series converter are the plastic and metal. The external diagram is shown below.
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4 Basic technical specification
Category | Terminal symbol | Terminal name | Function description |
Power supply | +10V-GND | External connection of +10V power supply | Provide power supply of +10V externally, with maximize output current: 10mA It is generally used as working power supply for external potentiometer and the resistance range of potentiometer is 1kΩ~5k Ω |
+24V-COM | External connection of +24V power supply | +24V power supply is provided outwards and generally used as the working power supply for digital input/output terminal and the power supply for external sensor Maximum output current: 200mA | |
OP | Input terminal of external power supply | The factory default is connection to+24V When an external signal is used to drive DI1~DI7, OP shall be connected to external power supply and disconnected from+24V power supply terminal | |
Analog input | AI1-GND | Analog Input Terminal 1 | 1. Input voltage range: DC 0V~10V 2. Input resistance: 22kΩ |
AI2-GND | Analog Input Terminal 2 | 1. Input range: DC 0V~10V/4mA~20mA, as determined by Jumper J8 on the control panel 2. Input resistance: 22kΩ for voltage input and 500Ω for current input. | |
Digital input | DI1- OP | Digital Input 1 | 1. Optical coupler isolation, with bipolar input 2. Input resistance: 2.4kΩ 3. Voltage range in input level: 9V~30V |
DI2- OP | Digital Input 2 | ||
DI3- OP | Digital Input 3 | ||
DI4- OP | Digital Input 4 | ||
DI6- OP | Digital Input 6 | ||
DI7- OP | Digital Input 7 | ||
DI5- OP | High-speed pulse input terminal | Apart from the characteristics of DI1~DI7, it may be used as high-speed pulse input channel. Maximum input frequency: 100kHz | |
Analog output | AO1-GND | Analog Output 1 | Jumper J5 on the control panel shall determine voltage or current output. Output voltage range: 0V~10V Output current range: 0mA~20mA |
Analog output | AO2-GND | Analog Output 1 Analog Output 2 | Jumper J3 on the control panel shall determine voltage or current output. Output voltage range: 0V~10V Output current range: 0mA~20mA |
Digital output | DO-COM | Digital Output 1 | Optical coupler isolation, bipolar open collector output Output voltage range: 0V~24V Output current range: 0mA~50mA |
Relay output | RO1A-RO1B | Closed terminal | Contact drive capacity: 25V ac,3A,COSØ=0.4 . 30Vdc ,1A |
RO1A-RO1C | Open terminal | ||
RO2A-RO2C | Open terminal | ||
Secondary interface | RO2A-RO2B | Closed terminal | Contact drive capacity: 25V ac,3A,COSØ=0.4 . 30Vdc ,1A |
Communication interface | 485+,485- | Modbus | Modbus communication interface, non-isolated output |
Item | Specification | |
Basic functions | Maximum frequency | Vector control:0~500Hz; V/F control:0~500Hz |
Carrier frequency | 0.8kHz~12kHz Automatic adjustment of carrier frequency based on load characteristics | |
Input frequency resolution | Digital setting:0.01Hz Analog setting:Maximum frequency×0.025% | |
control method | Open loop vector control(SVC) V/F control | |
Starting torque | G type machine:0.5Hz/150%(SVC) P type machine: 0.5Hz/100% | |
Speed range | 1:100 (SVC) | |
Constant-speed accuracy | ±0.5%(SVC) | |
Overload capacity | G type machine:60s for 150% of the rated current P type machine:60s for 120% of the rated current | |
Torque boost | Automatic torque boost; Manual torque boost0.1%~30.0% | |
V/F curve | Three ways: straight V/F curve; multi-point V/F curve; N-th power type V/F curve (1.2th power, 1.4th power, 1.6th power, 1.8th power, 2th power) | |
V/F Separation | 2 ways: full separation, semi-separation | |
Acceleration / deceleration curve | Straight-line or S-curve acceleration and deceleration Four groups of acceleration/deceleration time with the range of 0.0-6500.0s | |
DC braking Built-in brake unit | DC braking frequency:0.00Hz~ Maximum frequency Braking time:0.0s~36.0s Brake action current value:0.0%~100.0% | |
Jog control | Jog frequency range:0.00Hz~50.00Hz. Jog acceleration/deceleration time0.0s~6500.0s. | |
Operation | Command source | The operation panel is given, the control terminal is given, and the serial communication port is given. Can be switched in a variety of ways |
Frequency source | Multiple frequency sources: digital reference, analog voltage reference, analog current reference, serial port reference. It can be switched in a variety of ways. | |
Auxiliary frequency source | 10 auxiliary frequency sources. Flexible implementation of auxiliary frequency trimming and frequency synthesis | |
Input terminal | standard: 7 digital input terminals (customizable high-speed pulse input, support 100K) 2 analog input terminals, 1 only supports 0~10V voltage input, 1 supports 0~10V voltage input or 4~20mA current input | |
Output terminal | Standard: 1 digital output terminal 1 relay output terminal 2 analog output terminals, support 0~20mA current output or 0~10V voltage output Expansion ability: 1 relay output terminal | |
Display and keyboard operation | LED display | Display the parameter |
Key lock and function selection | Realize partial or all key lock and define the action range of some keys to prevent misoperation | |
Protection function | Short circuit test of electrified motor, input/output default phase protection, overcurrent protection, overvoltage protection, undervoltage protection, overheat protection, overload protection, etc. |
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