AC electric drives Unidirve M600 developed by companies Nidec ASI to implement the tasks of controlling asynchronous electric motors and synchronous motors with permanent magnets, the basic configuration does not provide a connector for connecting a feedback sensor, the electric drive is controlled in open loop mode. For vector control of an electric drive with a feedback sensor (encoder), it is necessary to additionally retrofit the drive with a SI-Encoder module.
The Unidrive M600 frequency converter is equipped with a built-in programmable logic controller (PLC, PLC) with a real-time function, writing programs is based on the open CODESYS software environment. The software supports the file structure of its predecessor, the electric drive Unidirve SP, to set up new hardware, it is enough to copy the parameter and program files.
The process of controlling an electric machine in Unidrive M600 electric drives, as in all Control Techniques drives, is implemented on the basis of an effective rotor flow control algorithm ((Rotor Flux Control /RFC), which ensures maximum stability of control and control of performance characteristics in severe conditions, high overload characteristics (the electric drive operates steadily at overloads up to 200%).
Note: The Unidirve SP series is a direct replacement for the drives Unidirve M701.
Applications of Unidrive M600 frequency converters: extruders, flying shears, rolling mills, long-range conveyor systems, metal cutting machines, woodworking equipment, peeling machines, rubber mixers, calenders, presses, paper machines, mills, furnace drives, metalworking centers.
Technical characteristics of the Unidrive M600 electric drive
- Rated power: 0.37 – 1.2 MW;
- Supply voltage ratings: 200 /400 /575 /690 In;
- Integrated Programmable Logic Controller (PLC);
- 2 built-in RS485 data transfer ports;
- 3 slots for additional modules;
- Built-in EMC filter with easy shutdown,
- The ability to connect external EMC filters and brake resistors.
Modes of operation of Unidrive M600 frequency converters
- U/f (volt-frequency) control /scalar control of an asynchronous electric motor;
- vector control in an open loop by an asynchronous electric motor;
- vector control in an open loop using the RFC-A algorithm.
- open loop control for permanent magnet motors RFC-S (without feedback sensor);
- closed-loop vector control for asynchronous motors RFC-A (using feedback sensor/encoder);
- active rectification mode Active Front End /AFE (providing energy recovery and reducing unwanted harmonics).
Configuration of inputs/outputs of the Unidrive M600 electric drive
- 3 analog inputs (it is possible to connect the following types of temperature sensors:
- Din 4408, KTY 84, PT100, PT 1000, PT 2000);
- 2 analog outputs;
- 4 digital inputs + 1 digital output + 3 digital inputs-outputs;
- 1 drive emergency shutdown input;
- 1 built-in relay for current 2A AC 240 V;
- 1 Safe torque cut-off input (STO): ensure easy compliance with the SIL3 reliability class.
Optional Unidrive M600 electric drive modules
Parameterization and parameter display modules:- AI-Back-up Adapter: allows you to use an SD card to copy the parameters of the electric drive, and is also a +24 V backup power input;
- SD-Smartcard adapter for backup settings using a Smartcard;
- Removable LCD KI-Keypad control panel for displaying detailed parameters and data;
- Removable LCD control panel KI-Keypad RTC for displaying detailed parameters and data, with real-time clock;
- Remote LCD control panel Remote Keypad.
I/O Expansion Modules SI-I/O is an input/output expansion module (3 analog inputs, 1 analog output, 4 digital inputs/outputs, 2 relay outputs with a current of 2 A AC 240 V).
