Three-phase frequency converters SPLC-AT20-75P4 are powered by three-phase voltage of 380 V and designed to control three-phase asynchronous motors with a voltage of 380 V and a power of up to 75 kW.
The frequency converter models of the series SPLC-AT20-75P4 can operate in the mode of:
- Easy-to-configure scalar control, which involves voltage/frequency regulation.
Main parameters of SPLC-AT20-75P4:
- Maximum output frequency up to 600 Hz, resolution for digital frequency setting 0.01 Hz;
- Rated power supply of the frequency converter - 3ph ~380V 50/60 Hz;
- Overload capacity in “P” mode allows overload of 120% for 60 s, 150% – no more than 3 s);
- PID control with feedback;
- Internal controller (PLC);
- Remote control panel (LCD display, indicators, configurable keys). By default, the removable operator panel is installed on the device, and for remote connection, you need to additionally order and buy a connector (not included in the price of the frequency converter).
Main capabilities of SPLC-AT20-75P4:
- It is possible to use the main and auxiliary sources of preset frequency, synthesize them, and switch between sources in various ways. You can set the frequency through:
- Digital setting with keys on the operator panel in the appropriate menu item;
- Digital setting using UP/DOWN terminals;
- Digital setup through RS-485 port;
- Potentiometer connected to the frequency converter;
- Multi-step speed with 16 preset rotation frequencies up to 6500.0 hours, acceleration/braking time for each step;
- Closed-loop PID control with switchable PID parameters;
- Analog electrical signal;
- High-speed pulse signal.
- Hold start frequency up to 100.0 s;
- Function of forced motor stopping by DC braking;
- Choice of acceleration/braking time and mode - linear or S-curve;
- Sleep mode with activation periods to prevent water freezing;
- “Jog” mode;
- Protection functions:
- Password access protection for menus;
- Protection of the motor and frequency converter from overload;
- Module overheat protection;
- Phase disconnection detection at input/output;
- Exceeding response time detection for RS-485;
- Overvoltage and undervoltage protection;
- Sensor break detection for PID feedback;
- Alarm for low and high water pressure, engine shutdown in case of water shortage;
- Display of 25 types of errors on the display.
You can buy vector frequency converter Nietz for asynchronous motors with power up to 75 kW SPLC-AT20-75P4 with a supply voltage of 3ph AC380V delivered to any region of Ukraine.
Table — Main Technical Parameters of Frequency Converters SPLC-AT20-75P4
| Input Voltage |
3ph 380 V
|
| Output Voltage |
3ph 380 V
|
| Output Power |
up to 75 kW (in "P" mode)
|
| Output Frequency Range |
from 0 to 600 Hz
|
| Rated Input Current |
140 A (in "P" mode)
|
| Rated Output Current |
150 A (in "P" mode)
|
| Protection Degree EN 60529 |
IP20 |
SPLC-AT20-75P4 Frequency Converter Diagram
Frequency converter control circuit:
- Input terminals: 6 digital multifunctional inputs and 2 analogue inputs (one 0…20 mA or 0…10 V, the other only 0…10 V);
- Output terminals: 2 relay outputs, 1 high-speed pulse output (open collector transistor), 2 analogue outputs (0…20 mA or 0…10 V);
- Communication port RS-485 (Modbus).
On order
