Features 1、Overcurrent Suppression Protection: The variable frequency inverter automatically limits the load current from exceeding the set overcurrent suppression point during operation through real time monitoring of the load current to prevent fault tripping caused by excessive current, this function is especially suitable for some loads with large inertia or drastic changes. 2、Excellent Stability: The variable frequency drive uses integrated IGBT modules for greater load carrying capacity and stability. 3、Compact Internal Design: The new, upgraded design of the variable frequency drive makes it more compact, allowing for more space saving installation and reducing costs by increasing the number of inverter installations in the cabinet. 4、One Key Macro Function: The frequency inverter can be used for machine tool macros, engraving machine macros and constant pressure water supply macros, making them easier to operate and more efficient and stable. 5、Overvoltage Suppression Protection: When the voltage of the bus bar of the inverter reaches or exceeds the bus bar overvoltage suppression point during operation, the inverter will automatically adjust the operating frequency to suppress the bus bar voltage increase, thus ensuring that the inverter will not be protected from overvoltage caused by the high bus bar voltage. 6、Reliable Material: The variable frequency inverter is made of industrial flame retardant ABS plastic that is excellent impact resistant, heat resistant, flame retardant, secure and reliable. 7、Wide Application: The variable frequency drive is widely used for speed regulation of all kinds of 3 phase asynchronous motors to achieve motor speed regulation, energy saving and environmental protection, improve production processes, increase production efficiency and other functions. 8、Double Row Digital Tube: The variable frequency drive has a separate air duct design for reliable stability, a double row digital display and high torsion at low frequencies. Specification Item Type: Variable Frequency Drive Material: Flame Retardant ABS Model: SKI90 011G, 015P 4 Input: 3PH AC380V±15% 26A 50 to 60Hz Output: 3PH AC0 380V 25A 0 to 400Hz Power Supply Capacity: 17KVA Applicable Motor: 11KW 15HP Category Terminal symbols Segment Name Function description Power Supplies 10V GND External and 10V Power supply Provides and 10V external power supply, maximum output current: 150mA (with short circuit protection) Generally used as an external potentiometer working power supply. Potentiometer resistance range: 1kΩ to 5kΩ 24V COM External and 24V power supply External and 24V power supply, generally used for digital input and output terminals Power supply and external sensor power supply Maximum output current: 200mA Analogue terminals Al1 GND Analog input terminal 1 1. Input range: DC0V to 10V 0mA to 20mA, determined by parameter P437 determines 2. Input impedance: 22kΩ for voltage input, 500Ω for current input 500Ω AI2 GND Analog input terminal 2 1. Input range: DC0V to 10V 0mA to 20mA, determined by parameter P4 to 37 determines 2. Input impedance: 22kΩ for voltage input, 500Ω for current input 500Ω AO1 GND Analog output terminal 1 Output voltage range: 0V to 10V Output current range: 0mA- to 20mA, 4 to 20mA (P5 to 23 selectable) AO2 GND Analog output terminal 2 Output voltage range: 0V to 10V No current output function J1 jumper cap on isolated main control board to AO2 position, non isolated main control board does not have this function. This function is not available on non isolated main control boards. Digital inputs X1 COM Digital input 1 HD1 (X5), in addition to the features of X1 to X4, can also be used as a high speed pulse input channel. Maximum input frequency: 50kHz 1. Input impedance: 1kΩ 2. Voltage range at level input: 5V to 30V X2 COM Digital input 2 X3 COM Digital input 3 X4 COM Digital input 4 HDI COM(X5 terminal) Digital input 5 High speed pulse input terminals A+B- RS485 communication A+ is the positive input for the differential signal of 485 communication, B- is the negative input for the differential signal Digital Outputs Y1 COM Open collector output When used as open collector output terminal (J1 jumper cap to AO2 position on 90 isolated main control board) HDO COM High speed pulse output Subject to function code P5 00 HDO terminal output mode selection when used as high speed pulse output up to 50kHz, when used as open collector output, same specifications as Y1. K1A K1B K1C Relay 1 terminal Contact description: A: Common point B: Normally closed point C: Normally open Contact drive capability: AC 250V, 3A, C0Sφ=0.4. DC 30V, 1A Package List 1 x Variable Frequency Drive 1 x Instruction Booklet