| Brand | RW Energy |
| Model NO. | GD3000 series three-level medium voltage frequency converter |
| Rated frequency | 50/60Hz |
| Series | GD |
Overview
GD3000 series frequency converter is a special product designed for special voltage levels in mining, petroleum and other industries, using three-level hardware topology circuit and AFE rectification technology, which can be used to control AC asynchronous induction motors and permanent magnet synchronous motors, meet the different working modes of motors, adopt high-performance vector control technology, and modular design schemes, flexibly adapt to the special needs of mining and petroleum equipment, and are widely used in mine elevators, belt conveyors, scrapers, winches, monkey carts, fans, Emulsion pumps, oil pumps, submersible electric pumps, fracturing and other equipment.
Leading three-level topology
a. higher output waveform sineness,
b. significantly lower output voltage change rate
Wide input voltage range
The whole series adopts laminated busbar
Professional surface sticker technology and modular structure design
Product Type: |
GD3000-01 series |
GD3000-11 series |
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Function description |
Specifications |
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input |
Rated Input Voltage (V) |
AC 3PH 970V~1310V |
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Rated input frequency |
50Hz/60Hz, allowable range 47~63Hz |
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Rated Input Efficiency (%) |
More than 98% |
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Rated input power factor (%) |
0.85 or higher |
0.99 or higher |
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output |
Rated Output Voltage (V) |
0~input voltage |
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Output frequency |
0~400Hz |
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Operational control characteristics |
Control mode |
V/F (with V/F separation function), open-loop vector, closed-loop vector |
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Motor parameters are self-learning |
Support motor stationary self-learning and rotation self-learning |
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speed regulation range |
Closed-loop vector: 1:1000; open-loop vector: 1:100 |
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Speed control accuracy |
Closed-loop vector: ±0.1% maximum velocity; Open-loop vector: ±0.5% maximum speed |
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Speed fluctuations |
±0.3% (open-loop vector control); ±0.1% (closed-loop vector control) |
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Torque control accuracy |
10% (open-loop vector control); 5% (Closed-loop vector control) |
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Starting torque |
0.5Hz 150% (open-loop vector control); Zero frequency 180% (closed-loop vector control) |
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Overload capacity |
150% rated current 60s, 180% rated current 10s, 200% rated current 1s |
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Important features: |
Master-slave control, multi-speed operation, simple PLC, multiple acceleration and deceleration time switching, S-curve acceleration and deceleration, fan operation control, energy-saving operation, PID adjustment, MODBUS communication, sag control, torque control, torque and speed control mode switching, etc |
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Protection function |
Motor overheat protection, overload protection, overvoltage protection, undervoltage protection, input phase loss protection, output phase loss protection, overcurrent protection, overheat protection, overvoltage stall protection, overcurrent stall protection, short circuit protection and other protection functions |
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Peripheral interface |
Analog input |
2 channels (AI1, AI2) 0~10V/0~20mA, 1 channel (AI3)-10~10V |
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Analog output |
2 channels (AO1, AO2) -10~10V /-20~20mA |
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Digital input |
It comes standard with 6 digital inputs |
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Digital output |
It comes standard with 1 open-circuit collector output |
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Standard 2 relay outputs, electric shock capacity: 3A/AC250V, 1A/DC30V |
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Communication mode |
485 communication (MODBUS protocol) is standard, and CAN, fiber, and Profibus-DP are optional |
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other |
keyboard |
LCD display as standard, compatible with LED keyboards |
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Operating ambient temperature |
-10°C~+40°C, and above 40°C need to be downgraded |
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relative humidity |
5%~95% |
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Storage temperature |
-40℃~+70℃ |
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altitude |
Below 1000 meters, more than 1000 meters will be degraded by 1% for every 100 meters |
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Protection level |
IP00、IP20、IP54 |
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