GD270 serijos dažnio keitikliai skirti ventiliatoriams ir siurbliams valdyti – nuotekų valymo, ŠVOK, chemijos, metalurgijos, elektros energijos ir kitose pramonės šakose, pasižymi dideliu energijos vartojimo efektyvumu ir lankstumu.
Funkcijos
- Dydžio pranašumas: pritaikyta knygos tipo konstrukcija, leidžianti lengvai montuoti ir suteikia kompaktišką formą
- Variklio suderinamumas: palaiko sinchroninių ir asinchroninių variklių valdymą
- Įdiekite ir paleiskite: integruota su ventiliatorių ir siurblių pramoninėmis taikymo funkcijomis (HVAC)
- Energijos taupymas ir aukštas efektyvumas: naudoja naują ECO algoritmą, sumažinantį eksploatavimo išlaidas
- Konfigūruojama pagal pageidavimą: gali būti konfigūruojama pasirinktinai su integruotu DC reaktoriumi ir išvesties reaktoriumi.
- Didelis išplėtimo pajėgumas: palaiko Profibus-DP, Profinet, CANopen komunikacijas ir I/O išplėtimus
- Patobulintas apsaugos mechanizmas: sustiprintas apsauginis sluoksnis pagrindinėje plokštėje
Techninė specifikacija: GD270 Catalog(EN)-20230817(V2.4)
Function description | Description | |
Power input
|
Input voltage (V) | AC 3PH 380–480V. Rated voltage: 380V |
Allowed voltage transient fluctuation | -15%–+10% | |
Input current (A) | 20 | |
Input frequency (Hz) | 50 Hz or 60 Hz allowable range 47-63Hz | |
Power output
|
Output voltage (V) | 0-input voltage |
Output current (A) | 13 | |
Output power (kW) | 5.5 | |
Output frequency (Hz) | 0-400 Hz | |
Technical control performance
|
Control mode | Space voltage vector control, sensorless vector control (SVC) |
Motor type | Asynchronous motor (AM) and permanent magnetic synchronous motor (SM) | |
Speed ratio | For Asynchronous motors (AMs): 1:200 (SVC); for synchronous motors (SMs): 1:20 (SVC) | |
Speed control accuracy | ± 0.2% (SVC) | |
Speed fluctuation | ± 0.3% (SVC) | |
Torque response | < 20ms (SVC) | |
Torque control accuracy | ± 10% (SVC) | |
Overload capacity | Able to run at 110% of rated current for 1min, and overload allowed for every 5 min. | |
Running control performance
|
Frequency setting method | Settings can be implemented through digital, analog, pulse frequency, multi-step speed running, simple PLC, PID communication, communication and etc. Settings can be combined and the setting channels can be switched. |
Automatic voltage regulation | The output voltage can be kept constant although the grid voltage changes. | |
Fault protection | Many protection functions available such as protection against overcurrent, overvoltage, undervoltage, overtemperature, phase loss and overload. | |
Speed tracking restart | Used to implement impact-free smooth startup for rotating motors | |
Peripheral interface
|
Terminal analog input resolution | No more than 20mV |
Terminal digital Input resolution | No more than 2ms | |
Analog input | Two inputs; AI1: 0(2)-10V/0(4)-20mA; AI2: -10-+10 V | |
Analog output | Two outputs; AO0/AO1: 0(2)-10V/0(4)-20mA | |
Digital input
|
Five regular inputs; max. frequency: 1kHz; internal impedance: 3.3kΩ | |
On high-speed input max. frequency:50kHZ | ||
Digital output | One Y terminal open collector output, sharing the terminal with S4. The function can be selected through a jumper. | |
Relay output
|
Two programmable relay outputs. | |
RO1A: NO; RO1B: NC; RO1C: common | ||
RO2A: NO; RO2B: NC; RO2C: common | ||
Contact Capacity: 3A/AC250V, 1A/DC30V | ||
Extended interfaces
|
Three extended interfaces: SLOT1 and SLOT2 | |
Supporting communication expansion cards, I/O cards and so on. | ||
Other
|
Mounting method | Supports wall mounting, floor mounting and flange mounting |
Temperature of running environment | -10 – +50°C; derating is required if the ambient temperature exceeds 40°C | |
Ingress protection rating
|
IP20 for 200kW and lower | |
IP00 for 220kW and higher | ||
Pollution degree | Degree 2 | |
Cooling method
|
For 1.5kW: Natural air cooling | |
For 2.2kW and higher: Forced air cooling |