Vector frequency converter 220 kW, 380V (SPLC-AT20-220G/250P4)

Three-phase frequency inverters SPLC-AT20-220G/250P4 are powered by three-phase voltage 380 V and are designed for controlling three-phase asynchronous motors with a voltage of 380 V up to 220 kW.

The model of frequency inverters of the series SPLC-AT20-220G/250P4 can switch modes:

• Precise vector control with open loop (sensorless)
• Easy to set scalar control, which involves voltage/frequency regulation. This control is less precise but allows "Pump" mode with more powerful motors — 250 kW.

Main parameters SPLC-AT20-220G/250P4:

• Maximum output frequency up to 600 Hz, frequency setting resolution 0.01 Hz;
• Nominal power supply of the frequency inverter — 3ph ~380V 50/60 Hz;
• Overload capacity: operation for 60 s exceeding nominal current up to 150%, for 3 s — up to 180% (in "P" mode overload of 120% for 60 s, 150% — no more than 3 s);
• PID regulation with feedback;
• Built-in controller (PLC);
• Remote control panel (LCD display, indicators, configurable buttons). By default, the removable operator panel is mounted on the device, and for remote connection, an additional connector purchase is required (not included in the frequency inverter price).

Main capabilities SPLC-AT20-220G/250P4:

• Ability to use the main and auxiliary frequency sources, their synthesis, switch between sources in various ways. Possible frequency settings through:
  • Digital setting by panel keys in the respective menu item;
  • Digital setting via UP/DOWN terminals;
  • Digital setting through the port RS-485;
  • Potentiometer connected to the frequency inverter;
  • Multi-step speed with 16 preset rotational frequencies with duration up to 6500.0 hours, acceleration/deceleration time for each step;
  • PID control in a closed loop with switchable PID parameters;
  • Analog electrical signal;
  • High-speed pulse signal.
• Maintaining starting frequency up to 100.0 s;
• Forced motor stopping with DC braking;
• Selection of acceleration/deceleration time and mode — linear or S-curve;
• Sleep mode with periods to prevent water freezing;
• “JOG” mode;
• Protection functions:
  • Menu access password protection;
  • Protection of motor, frequency inverter from overload;
  • Module overheating protection;
  • Phase loss detection on input/output;
  • RS-485 communication timeout detection;
  • Overvoltage and undervoltage protection;
  • Feedback sensor break detection for PID;
  • Low and high water pressure alarm, stopping motor in case of water shortage;
  • Display of 25 types of errors on screen.

You can buy a vector frequency inverter Nietz for asynchronous motors up to 220 kW SPLC-AT20-220G/250P4 with supply voltage 3ph AC380V with delivery to any region of Ukraine.