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M751

Extends the Unidrive M range with maximum servo performance in a minimum size package. Optimized for high-dynamic applications.Includes Modbus RTU communication.

Leader in compactness and installation for single and multi-axis configurations

3 different sizes up to 48 A peak current, 40 mm width for all sizes
Cabinet depth from 200 mm
25 drives up to 16 A can be placed in a 1 m wide cabinet
Single cable concept including power conductors and feedback communication
From stand-alone drive to modular system with interconnected DC busses

Maximum performance

300% peak current performance
Very high torque to size ratio when using Unimotor HD servo motors
62.5 μs current loop
250 μs position and speed loop
Unique ‘dead beat’ current controller for maximum bandwidth
Notch filter for suppression of mechanical resonances

Flexibly expandable functions via optional modules

Digitax HD supports a range of communications, I/O, feedback and machine control option modules.
Overall width including modules: 62 mm

Patented Ultraflow technology

Control Techniques’ patented Ultraflow™ technology expels heat directly outside of the cabinet through the rear of the drive
An intelligently controlled fan minimizes acoustic noise and optimizes fan lifetime
Controlling the air flow through the drive protects the drive electronics
Ultraflow™ requires only a 32 mm hole in the cabinet meaning rapid, trouble-free installation

Video

Videos are available on YouTube.

Specifications

Power (kW) 0,37 - 5,5

Output current @ 40°C (A) 1,1 - 48

Heavy Duty overload (RFC) 300%

Heavy Duty overload (Open Loop) 150%

Normal Duty overload 110%

Rated voltage (V) 230; 400; 575; 690

Maximum output frequency (Hz) 550

Switching frequency (kHz) 2; 3; 4; 6; 8; 12; 16

IP20 rating Yes

Conformal coating Yes

Braking resistor Yes

EMC filter (EN61800-3) Yes

Operating mode

Open loop - vector (induction motors) Yes

Open loop - V/F (induction motors) Yes

Fixed V/F mode Yes

Quadratic V/F mode Yes

RFC-A Open loop - Rotor Flux Control for induction motors Yes

RFC-A Open loop - Rotor Flux Control for permanent magnet motors Yes

RFC-S Open loop - Rotor Flux Control for pemanent magnet motors Yes

RFC-A Closed loop - Rotor Flux Control for induction motors Yes

RFC-S Closed loop - Rotor Flux Control for permanent magnet motors Yes

Active Front End (AFE) Yes

I/O

+10 V output (for potentiometer) No

+24 V output Yes

Analog input (V-mA) No

Bipolar differential analog voltage or current input (V-mA) 1

Analog input (V) / PTC or PT thermistor input No

Analog input (V) / Digital input No

Analog output (V) No

Digital input 2

Digital input / PTC or PT thermistor input No

Digital input / Digital output No

Relay No

Encoder - connector Yes

Encoder - simulated output Yes

Safety

2× Safe Torque Off (STO) Yes

Safe Torque Off (STO) No

Communications & HMI

Integrated EtherCat No

Integrated Ethernet No

Modbus RTU (inbuilt) Yes

Modbus RTU (option) Yes

LED keypad No

LCD keypad No(volitelné příslušenství)

PC programming and diagnostics Yes

Intelligent functions

PLC Yes

Real time clock Yes(RTC Keypad)

Digital lock Yes

Positioning (inbuilt) Yes

Inbuilt oscilloscope Yes

Integrated potentiometer No

Functions

24V backup power supply (inbuilt) No

Optional 24 V backup power supply Yes

Standby mode Yes

Intelligent Pump Control Yes

Pre-heat Yes

Sleep/wake mode No

Brake control Yes

Control loss detection No

Dry-run detection No

Fire mode No

Intelligent Pump Control (IPC - Pro) No

Intelligent Pump Control (IPC - Lite) No

Option module slot

SI-Option - slot 1

KI-Adapter - slot 2

AI-Adapter - slot No

Application type

Standard applications Yes

Elevators No

Fans No