Vector frequency converter 15 kW, 380V (SPLC-AT20-15G/18.5P4)

Three-phase frequency converters SPLC-AT20-15G/18.5P4 are powered by three-phase voltage 380 V and are designed to control three-phase asynchronous motors with a voltage of 380 V and a power of up to 15 kW.

The model of frequency converters series SPLC-AT20-15G/18.5P4 can switch between modes:

• Precise vector control with an open loop (sensorless)
• Simple to set scalar control that involves adjusting the voltage/frequency. This method of control is less precise, but in "Pump" mode it allows working with higher power motors — 18.5 kW

Main parameters of SPLC-AT20-15G/18.5P4:

• Maximum output frequency up to 600 Hz, resolution for digital frequency adjustment 0.01 Hz;
• Rated power supply of the frequency converter — 3ph ~380V 50/60 Hz;
• Overload capacity: operation for 60 s exceeding nominal current up to 18.50%, for 3 s — up to 180% (in “P” mode, overload of 120% is allowed for 60 s, 18.50% — no more than 3 s);
• PID regulation with feedback;
• Internal controller (PLC);
• Remote control panel (LCD screen, indicators, customizable keys). By default, the detachable operator panel is mounted on the device, and to connect remotely, an additional connector needs to be ordered and purchased (not included in the price of the frequency converter).

Main features of SPLC-AT20-15G/18.5P4:

• You can use both main and auxiliary frequency setpoints, merge them, and switch between sources in different ways. Frequency settings are possible via:
  • Digital adjustment using the keys on the operator panel in the relevant menu point;
  • Digital adjustment via terminals UP/DOWN;
  • Digital setting via RS-485 port;
  • Potentiometer connected to the frequency converter;
  • Multi-step speed with 16 presets for rotation frequency lasting up to 6500.0 hours, acceleration/deceleration time for each step;
  • PID regulation in a closed loop, with switchable PID parameters;
  • Analog electrical signal;
  • High-speed pulse signal.
• Holding starting frequency up to 100.0 s;
• Forced motor stop via DC braking function;
• Selection of time and mode for acceleration/deceleration — linear or S-shaped curve;
• Sleep mode with on periods to prevent water freezing;
• "Jogging" mode JOG;
• Protection functions:
  • Access password protection in the menu;
  • Protection against motor overload and frequency converter overload;
  • Module overheat protection;
  • Phase interrupt detection on input/output;
  • Response time excess detection for RS-485;
  • Overvoltage and undervoltage protection;
  • Feedback sensor break detection for PID;
  • Water low/high pressure signaling, motor stop on water shortage;
  • Display of 25 types of error messages.

You can buy a vector frequency converter Nietz for asynchronous motors with power up to 15 kW SPLC-AT20-15G/18.5P4 with a supply voltage of 3ph AC380V with delivery to any region in Ukraine.