Electric drive Unidrive M700 /M701 /702 – The new universal AC electric drive/frequency converter has been developed by Nidec ASI (Control Techniques) in accordance with current trends in drive technology and customer needs. The modification of the Undrive M701 electric drive is a complete replacement for the Unidrive SP electric drive, which is being discontinued in 2015.
Using the Unidrive M700 allows you to maximize the performance of technological equipment, this is achieved through precision motor control, built-in real-time Ethernet (IEEE 1588 V2 protocol) and high-speed I/O.
Real-time Ethernet (IEEE 1588 V2 protocol) provides better hardware management with fast and flexible communication. Synchronization over the network can be carried out in 1 microsecond with a data update time of only 250 microseconds and with an almost unlimited number of nodes.
Unidrive M700 Frequency Converters designed for management asynchronous AC electric motors, asynchronous servomotors, permanent magnet servo motors, synchronous motors, linear motors.
Recommendations for the selection of the input network choke, reactor, you can see here.
Technical characteristics of the Unidrive M700 electric drive
- Rated power: 0.37 kW – 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 ;
- M700 - Real-time Ethernet, 1 x Safe Torque Off (STO) and analog and digital inputs/outputs are standard.
- M701 - full compliance with the functions of the Unidrive SP electric drive, including RS-485, 1 x Safe Torque Off (STO), analog and digital inputs/outputs, identical control connectors. Ease of replacing Unidrive SP with Unidrive M.
- M702 - Two Safe Torque Off (STO) inputs, built-in real-time Ethernet and digital inputs/outputs. Easy integration with modern management and security systems.
Modes of operation of Unidrive M700 /M701 /M702 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 mode (without using a feedback sensor);
- closed-loop vector control for asynchronous motors, RFC-A mode (using feedback sensor/encoder);
- closed-loop vector control for permanent magnet electric motors, servo motor, RFC-S mode (using feedback sensor, encoder, resolver);
- Active rectification mode Active Front End /AFE (ensuring energy recovery and reducing unwanted harmonics).
Configuration of inputs/outputs of the Unidrive M700 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 M700 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 – I/O expansion module (3 analog inputs, 1 analog output, 4 digital inputs/outputs),
- 2 relay outputs for current 2 A AC 240 V);
Feedback sensor connection modules:
- SI-Encoder –Incremental encoder connection module (available in the future);
Modules of industrial communication protocols:
- SI-Profibus, SI-DeviceNet, and also available in the future SI-CANopen, SI-EtherCAT, SI-Ethernet;
