The frequency converter SPLC-NZS-2R2G4 is designed to control water supply pumps and other asynchronous motors with a power of up to 2.2 kW with three-phase AC power supply 380V.
This frequency converter has a reliable housing with dust and moisture protection degree IP65, protecting the device's circuit boards from dust and water jets if the device is installed directly near actuators in a contaminated environment. The price of the frequency converter includes its complete set with hermetic cable glands, 1.8 m input cable for power connection, and a 1 m output cable for connecting to the motor.
The front panel of SPLC-NZS-2R2G4 features an LCD display and indicators, as well as a keypad. The function of some keys can be determined through the menu, and they can be locked.
Terminal block of the control circuit:
- 6 multifunctional discrete input terminals, which can be used for remote commands, switching between 16 preset speeds (combination of 4 input signals), between 4 acceleration modes (combination of 2 input signals), etc.;
- 1 analogue scalable input (0...10 V, 0...20 mA), which can serve as a direct source of the set frequency, for connecting a temperature or pressure sensor during PID control in a closed loop;
- 2 relay outputs;
- 2 analogue outputs (0...10 V or 0...20 mA);
- RS-485 (Modbus) for connection to an industrial process automation system.
SPLC-NZS-2R2G4 supports the following control methods:
- scalar control method with multi-point configuration to get the V/f curve.
Main parameters:
- Rated motor power up to 2.2 kW;
- Output frequency 0.1~400 Hz;
- Ability to work 60 seconds with an overload of up to 150% of the rated current;
- Manual torque boost 0~20%;
- Carrier frequency selection 1~15 kHz;
- Two counters;
- Possibility of automatic output voltage regulation when the supply voltage changes;
- Implementation based on a frequency converter program of multi-step speed with 15 steps of different set frequency duration from 0 to 999.9 s;
- Fine tuning of PID control;
- Support for protection functions against overcurrent, overvoltage, and undervoltage during operation, acceleration, and deceleration; against overload of frequency converter and motor; against converter overheating; against RS-485 communication line break; against feedback break from 4...20 mA sensor; alert for high and low pressure, water shortage.
You can buy a scalar frequency converter Nietz for asynchronous motors with a power up to 2.2 kW series NZS with a supply voltage 3PH ~ 380V with delivery to any region of Ukraine.
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