Active Member
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[China]
Address: No. 25 Xianxing Rd, Xianlin Industrial Park, Hangzhou, Zhejiang, China
Contact name:Molly
CHIFON ELECTRIC CO.,LIMITED |
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CE certificated Single Phase 220v Vector Variable Frequency Inverter 1hp 2hp 3hp For Oil Field
Technical characteristics
Drive motor type:Ac asynchronous motor, Ac permanent magnet synchronous motor
Four control modes:PG vector control(FVC), PG-free vector control(SVC),
V / F control, Torque control
Speed control range:PG vector control(FVC)1:1000
PG- free vector control(SVC)1:200
V / F control 1:50
Speed control accuracy:PG vector control (FVC)±0.2%
PG- free vector control (SVC)±0.5%
Starting torque:PG vector control(FVC):180 % rated torque/0.01Hz
PG- free vector control (SVC)150% rated torque/0.25Hz
Torque control accuracy:PG vector control (FVC)±5%
PG- free vector control (SVC)±8%
Multi-motor switching: Two groups of motor parameters can realize the switching control of
the two motors.
Motor overheating protection:Optional IO expansion card, analog A / 3 can accept input from the
motor temperature sensor
Supports multiple encoders:Supports differential, open collector, uvw, rotary transformer,
sine and cosine encoder
Torque limitation and control: the "excavator" feature, automatically limits the torque during
operation to prevent frequent overcurrent trips. Closed-loop mode
can realize torque control.
Products Specifications:
| Basic Function | Specification | |
| Maximum output frequency | 0~500Hz | |
| Carrier frequency | 0.5kHz~16.0kHz;According to the load characteristics, carrier frequency can be adjusted automatically | |
| Input frequency | Range :47~63Hz | |
| Control mode | V/F Open/closed loop vector control(SVC/FVC) | |
| Speed range | 1:50(Vector mode 0 ) 1Hz/150% rated torque | |
| Overload capability | G type:150% rated current for 60s; 180% rated current for 3s P type:120% rated current for 60s; 150% rated current for 3s | |
| Torque boost | Auto Torque boost Manual Torque boost; 0.1%~30.0%. | |
| V/F curve V/F | Four modes : Line , Multi-point , Square V/F curve, V/F separation | |
| Jog control | Jog frequency range:0.00Hz to F0-10(Max frequency) | |
| Accelerate/Decelerate curve | Line or S-curve Acc/Dec mode, four kinds of Acc/Dec time Range of Acc/Dec Time0.0~65000.00s. | |
| DC brake | DC brake frequency: 0.00Hz to Maximum frequency brake time: 0.0 to 36.0s brake current value: 0.0 to 100% | |
| Simple PLC, Multi-speed | 16-speed operating through built-in PLC or control terminal | |
| Built-in PID | Close loop control system can be formed easily by using PID | |
| Automatic voltage regulating (AVR) | Output voltage is regulated when voltage of the power network changes | |
| Overvoltage and over current stall control | During operation automatically limits the inverter output current and bus voltage, to prevent fan over current and overvoltage trip. | |
| Rapid current limiting function | Minimizing flow failures, protect the normal operation of the inverter | |
| Instantaneous stop non-stop | Load feedback energy compensation voltage is reduced and continues to maintain a short time when change is momentarily interrupted. | |
| Speed tracking start | For high-speed rotation of the motor speed identification, impact- free smooth start | |
| Rapid current limit | Rapid software and hardware limiting technology to avoid frequent converter over current fault. | |
| Virtual IO | Five sets of virtual DO, five sets of virtual DI, enables easy logic control. | |
| Timing Control | Timing control: set the time range 0.0Min~6500.0Hour | |
| Multi-motor switch | Two independent motor parameters, enabling two motors switching control | |
| Bus Support | Two independent Modbus communication, CAN-Link | |
| Command source | Given the control panel, control terminal, serial communication
port given. It can be switched by a variety of ways. | |
| Torque boost | Auto Torque boost Manual Torque boost ; 0.1%~30.0%. | |
| Frequency source | Nine kinds of frequency sources: digital setting, analog voltage setting, analog current setting, pulse setting, or serial port and so on. It can be switched by a variety of ways. | |
| Auxiliary frequency source | Nine kinds of auxiliary frequency source. Flexible implementation
of auxiliary frequency tuning, frequency synthesis. | |
| Input terminal | Six digital input terminals, one only supports 50khz high pulse
input Two analog input terminals, one support 0V~10V voltage input One support 0 ~ 10V voltage input or 0 ~ 20mA current input | |
| Output terminal | One high-speed pulse output terminal (optional open collector
type), support of square wave 0 ~ 50kHz signal output One digital output terminal One relay output terminals Two analog output terminals, support 0 ~ 20mA current output or 0 ~ 10V voltage output | |
| Display and operation | ||
| LED display | Display parameters and status information | |
| The key lock and function selection | Achieve some or all of the keys locked, scope definition section
keys to prevent misuse. | |
| Protection function | Input/output phase failure protection ,Overcurrent protection ;Over voltage protection; Undervoltage protection; Overheat protection ; Overload protection | |
| Options | Brake assembly, PG card | |
| Environment | ||
| Application environment | In-door, free from direct sunlight, dust , corrosive gas, combustible gas, oil mist , steam , water drop and salt . | |
| Altitude | Lower than 1000m | |
| Vibration | Less than 5.9m/s(0.6g) | |
Benefits of VFD
If you have an AC motor-driven application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a Variable Speed Drive (VSD). Variable Speed Drives (Also known as Variable Frequency Drives) allow you to match the speed of the motor-driven equipment to the process requirement.
Variable speed drives, and the loads they are applied to, can generally be divided into two groups: constant torque and variable torque. The energy savings potential of variable torque applications is much greater than that of constant torque applications. Variable torque loads include centrifugal pumps and fans, which make up the majority of HVAC applications. Constant torque loads include vibrating conveyors, punch presses, rock crushers, machine tools, and other applications where the drive follows a constant V/Hz ratio.
In variable torque applications, the torque required varies roughly with the square of the speed, and the horsepower required varies approximately with the cube of the speed, resulting in a large reduction of horsepower for even a small reduction in speed. A motor in a variable torque application will consume only 25% as much energy at 50% speed as it will at 100% speed. This is referred to as the Affinity Laws, which define the relationships between speed, flow, torque, and horsepower.
Variable Speed Drives (VSDs) allow you to consume less energy than other speed control techniques when load requirements are less than full speed, as is usually the case in HVAC applications.
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