The frequency converter SPLC-NZS-0R7G4 is designed for controlling water supply pumps and other asynchronous motors with power up to 0.75 kW with a three-phase AC supply 380V.
This frequency converter has a reliable casing with dust and water protection rating of IP65, which protects the device's circuit boards from dust and water jets when installed directly near actuating mechanisms in a contaminated environment. The price of the frequency converter is indicated inclusive of accessories like sealed cable entries, a 1.8m input power cable, and a 1m output cable for connecting to a motor.
The front panel of SPLC-NZS-0R7G4 features an LCD display and indicators, as well as a keypad. Certain keys can be configured through the menu, and can be locked.
Control circuit terminal blocks:
- 6 multifunctional discrete input terminals that can be used for remote commands, switching between 16 predefined speeds (combination of 4 input signals), between 4 acceleration modes (combination of 2 input signals), etc.;
- 1 scalable analog input (0...10 V, 0...20 mA) that can serve as the direct frequency setpoint source for connecting a temperature or pressure sensor in PID regulation in a closed loop;
- 2 relay outputs;
- 2 analog outputs (0...10 V or 0...20 mA);
- RS-485 (Modbus) for connecting to the industrial automation system.
The SPLC-NZS-0R7G4 supports the following control methods:
- scalar control method with multi-point setting capability for obtaining V/f curve.
Key parameters:
- Rated motor power up to 0.75 kW;
- Output frequency 0.1~400 Hz;
- Able to operate 60 seconds with overload up to 150% of nominal current;
- Manual torque boost 0~20%;
- Carrier frequency selection 1~15 kHz;
- Two counters;
- Capability to apply automatic output voltage adjustment when supply voltage changes;
- Possibility to implement a multi-step speed program with 15 steps of various frequency setpoints lasting from 0 to 999.9 s based on the frequency converter;
- Fine tuning of PID control;
- Support for protection functions against overcurrent, overvoltage and undervoltage during operation, acceleration, and deceleration; against overloading of the frequency converter and motor; against converter overheating; against RS-485 communication interruption; against sensor 4...20 mA feedback interruption; high and low pressure alerts, water shortage alarms.
You can buy the scalar frequency converter Nietz for asynchronous motors with power up to 0.75 kW of NZS series with 3Ph~380V power supply with delivery to any region of Ukraine.
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