Gelite inverter effect
Inverter integrates high voltage high power transistor technology and electronic control technology, and has been widely used. The function of frequency converter is to change the frequency and amplitude of AC motor power supply, so as to change the period of its motion magnetic field, and achieve the purpose of smoothly controlling motor speed. The emergence of frequency converter simplifies the complex speed control. The combination of frequency converter and AC squirrel cage induction motor replaces most of the original work which can only be done by DC motor, reduces the volume, reduces the maintenance rate and develops the transmission technology to a new stage.
Working Principle of Gelite inverter
Frequency converter is a power control device that converts power supply into another frequency by using the on-off function of power semiconductor devices. It can realize the functions of soft starting, frequency conversion speed regulation, improving operation accuracy, changing power factor, over-current/over-voltage/over-load protection for AC asynchronous motor. So as to improve the product process, energy saving and environmental protection functions.
Introduction to Gelite inverter Typical Series
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Performance characteristics:
There are three control modes: speed sensor vector control, speed sensor vector control and VVVF. Automatic identification of motor parameters. Accurate Torque Limitation. 12 kHz carrier frequency to achieve full silence operation. Flexible combination frequency setting. Seven programmable input I/O channels, a total of 27 functional options, and a high-speed I/O port, can be given as a pulse frequency. Four programmable output I/O, a total of 24 functions can be selected, and there is a high-speed I/O port, external frequency meter. RS485 communication interface. Built-in PI regulator and simple PLC function. There are many combinations of PI's given and feedback channels. PI regulator can be adjusted independently. It has the functions of feedback disconnection protection, sleep and wake-up. Triangular wave swing frequency function for textile industry. User programs can be upgraded.
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Technical specification:
Gelite Inverter VC3000 Series Standard Specification
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project
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Standard
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Power Supply
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Rated input voltage
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Three-phase 380V±30%，50~60Hz±5%
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output
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Rated output voltage
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Three-phase 380V (maximum output voltage is the same as input supply voltage)
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Continuous running current
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100% rated output current
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Overload capacity
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150% rated output current for 2 minutes and 180% rated output current for 10 seconds
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control performance
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output frequency
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0Hz~400Hz
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modulation mode
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Optimizing Space Voltage Vector PWM Modulation Mode
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control mode
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Vector control with PG feedback; vector control without PG feedback; V/F control
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Running commands in a given way
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The keyboard is given; the external terminal is given; it is given by the host computer through the serial communication port.
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Speed Setting Resolution
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Digital Settings: 0.01Hz
Analog Settings: 1/1000 Maximum Frequency
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Speed setting accuracy
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Digital Setting: +0.01% Maximum Frequency (-10 +40)
Simulated setting: +0.05% maximum frequency (25 +10)
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Speed control accuracy
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Vector control with PG feedback: +0.05% rated speed;
(25 C + 10 C)
No PG feedback vector control: +0.5% rated speed;
(25 C + 10 C)
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Speed control range
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Vector control with PG feedback: 1:1000
PG-free feedback vector control: 1:100
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Torque control response
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Vector control with PG feedback: <150 mS
No PG Feedback Vector Control: <200 mS
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Starting torque
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Vector control with PG feedback: 200% rated output torque / 0.05Hz; vector control without PG feedback: 150% rated output torque / 0.5Hz
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Braking torque
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Energy-free braking: rated output speed less than 22KW > 20%
Torque, above 30KW > 15% rated output torque
Energy Consumption Braking: > 150% Rated Output Torque
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Torque control accuracy
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Rated Output Torque (+5%)
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Control Input and Output Signals
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Setting Reference Voltage Output
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1 way, +10V, 5mA
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Control Voltage Source Output
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24 V, 100 mA; can also be provided by the outside through the PLC terminal
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External user power input
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1 way, the working power supply of the contact input terminal can use the power supply of the external active contacts (12 ~ 24V)
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Analog input
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1 way，0~10 V /0~20 mA DC，10bit
1 way，0~10 V DC，10bit
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Analog output
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1 way, 0 ~ 10V, output programmable, multiple output options
1-way, 0-10V/0-20mA, output programmable, multiple output options
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Programmable Contact Input
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7-way programmable, forward/reverse, forward/reverse point movement, multi-segment speed, multi-segment acceleration/deceleration time, free parking, voltage/current switching and other 27 functions are optional.
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Pulse signal input
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1 way，0~50K HZ
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PG signal input
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A+, A-, B+, B-differential input; A-, B-open collector disc input
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FAM Frequency Signal Output
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1 channel, frequency meter signal (output frequency is multiple signal of frequency converter output frequency), 0-50 kHz
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Collector open circuit output
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2 channels, 24 operation states are optional; maximum output current is 50mA
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Programmable Relay Output
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Two paths, 24 operating states are optional, contact capacity: 250V AC/3A or 30V DC/1A
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Serial communication interface
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RS-485 interface
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Standard function
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Current Limit, Torque Lift, Speed Tracking, DC Braking, Power Outage Restart, Slip Compensation, Fault Auto-Reset, Frequency Limit, Bias Frequency, Start Frequency, Jump Frequency, Frequency Gain, Carrier Frequency Adjustment, Acceleration/Deceleration Mode Adjustable, Voltmeter Output, Amperometer Output, Multi-Section Speed, Range Sequential operation, swing frequency operation, PI closed-loop operation, proportional linkage, long-distance control, positive and negative dead zone
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Protection function
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Overvoltage, undervoltage, overcurrent, current limit, overload, overheat, electronic thermal overload relay, overvoltage stall, data protection, etc.
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display
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Four-digit Digital Display (LED)
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Setting 16 state parameters such as frequency, output frequency, output voltage, output current, motor speed, output torque, switching terminal, programming menu parameters and 31 fault codes, etc.
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Chinese/English LCD
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Control mode, current programming or monitoring parameter name, alarm content, keyboard operation guidance, etc.
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Indicator light
(LED)
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Units of parameters, RUN/STOP status, etc.
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Conditions of use
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Installation site
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Indoor, no more than 1000 meters above sea level, no dust, no corrosive gas, no direct sunlight
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Applicable environment
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- 10 +40 (bare machine is -10 +50), 20%~90% RH (no condensation)
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Vibration
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小于0.5g
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Storage mode
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-25℃~+65℃
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Installation mode
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Wall-mounted, floor-mounted electronic control cabinet
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Protection level
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IP20
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Cooling mode
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0.75KW and below are closed self-cooling, others are forced air-cooling.
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