Vector frequency converter 45 kW, 380 V (SPLC-AT20-45G/55P4)

Three-phase frequency inverters SPLC-AT20-45G/55P4 are powered by three-phase voltage 380 V and are designed for controlling three-phase asynchronous motors with a voltage of 380 V and power of up to 45 kW.

The frequency inverters series model SPLC-AT20-45G/55P4 can switch modes:

• Precise vector control with open loop (no sensors)
• Easy to set scalar control based on voltage/frequency regulation. This control is less precise but allows the "Pump" mode to operate with higher power motors — 55 kW.

Main parameters of SPLC-AT20-45G/55P4:

• Maximum output frequency up to 600 Hz, resolution for digital frequency setting 0.01 Hz;
• Rated power supply of the frequency inverter — 3ph ~380V 50/60 Hz;
• Overload capacity: 60 s operation exceeding nominal current by up to 150%, 3 s — up to 180% (in “P” mode overload of 120% is allowed for 60 s, 150% — no more than 3 s);
• PID regulation with feedback;
• Internal controller (PLC);
• Remote control panel (LCD, indicators, customizable keys). By default, the removable operator panel is installed on the device, and for remote connection, an additional connector must be ordered and purchased (not included in the cost of the frequency inverter).

Main features of SPLC-AT20-45G/55P4:

• Can use primary and auxiliary frequency sources, their synthesis, switch between sources in various ways. Frequency settings are possible via:
  • Digital setting with keys on the operator panel in the corresponding menu item;
  • Digital setting using UP/DOWN terminals;
  • Digital setting through RS-485 port;
  • Potentiometer connected to the frequency inverter;
  • Multi-step speed with 16 preset frequency rotation settings up to 6500.0 hours, acceleration/braking time for each step;
  • Closed loop PID regulation, with switchable PID parameters;
  • Analogue electric signal;
  • High-speed pulse signal.
• Holding starting frequency up to 100.0 s;
• Forced motor stopping function via DC braking;
• Choice of time and acceleration/braking mode — linear or S-curve;
• Sleep mode with activation periods to prevent water freezing;
• JOG mode;
• Protection functions:
  • Password protection for menu access;
  • Protection of motor, frequency inverter from overload;
  • Module overheating protection;
  • Phase loss detection on input/output;
  • Exceeding response time detection over RS-485;
  • Overvoltage and undervoltage protection;
  • Feedback sensor break detection for PID;
  • Low and high water pressure alarms, motor stop in case of water shortage;
  • Display of 25 types of errors.

With us, you can buy a vector frequency inverter Nietz for asynchronous motors with a power of up to 45 kW SPLC-AT20-45G/55P4 powered by 3ph AC380V with delivery to any region of Ukraine.