Vector frequency converter 22 kW, 380V (SPLC-AT20-22G/30P4)

Three-phase frequency converters SPLC-AT20-22G/30P4 are powered by three-phase voltage 380 V and are designed to control three-phase asynchronous motors with a voltage of 380 V and power up to 22 kW.

The model of frequency converters series SPLC-AT20-22G/30P4 can be switched into modes:

• Accurate vector control with open loop (no sensors)
• Simple scalar control setup, involving regulation of voltage/frequency. This control is less accurate but allows the "Pump" mode to work with motors of greater power — 30 kW.

Main parameters of SPLC-AT20-22G/30P4:

• Maximum output frequency up to 600 Hz, resolution for digital frequency setting 0.01 Hz;
• Rated power supply of the frequency converter — 3ph ~380V 50/60Hz;
• Overload capability: operation for 60 s exceeding the rated current up to 150%, within 3 s — up to 180% (in mode “R”, overload of 120% is allowed for 60 s, 150% — no more than 3 s);
• PID regulation with feedback;
• Built-in controller (PLC);
• Remote control panel (liquid crystal display, indicators, customizable keys). By default, the removable operator panel is installed on the device, and for remote connection, you need to additionally order and purchase a connector (not included in the cost of the frequency converter).

Main capabilities of SPLC-AT20-22G/30P4:

• The main and auxiliary frequency source, their synthesis, switching between sources in different ways can be used. Frequency settings can be done through:
  • Digital setup with keys on the operator panel in the corresponding menu item;
  • Digital setup using UP/DOWN terminals;
  • Digital installation via RS-485 port;
  • Potentiometer connected to the frequency converter;
  • Multistage speed with 16 preset rotations with duration up to 6500.0 h, acceleration/braking time for each stage;
  • Closed-loop PID regulation, with switchable PID parameters;
  • Analog electrical signal;
  • High-speed pulse signal.
• Carrier frequency retention up to 100.0 s;
• Forced motor stop function by braking with direct current;
• Choice of acceleration/braking time and mode — linear or by S-curve;
• Sleep mode with activation periods to prevent water freezing;
• "Jog" mode;
• Protection functions:
  • Menu access password protection;
  • Protection against motor and converter overload;
  • Module overheating protection;
  • Detection of phase failure on input/output;
  • Detection of response time excess for RS-485;
  • Overvoltage and undervoltage protection;
  • Feedback sensor failure detection for PID;
  • Water pressure high/low warning, motor stop when water is insufficient;
  • Display 25 types of errors on the screen.

With us, you can buy a vector frequency inverter Nietz for asynchronous motors with power up to 22 kW SPLC-AT20-22G/30P4 with a supply voltage 3ph AC380V with delivery across any region of Ukraine.