Control Techniques 075SLC300CAPAA-SLAA Unidrive M High Performance Servo Drive

Overview

Model Code Decoding

1. 075: Rated power 0.75 kW
2. SLC: M700 high-performance motion control variant
3. 300: 380–480V three-phase AC input voltage class
4. CAPAA: Standard hardware configuration, built-in Ethernet, single STO, dual encoder channels
5. SLAA: Standard firmware without custom special function locking

Core Electrical Specifications

Power Rating

• Rated motor power: 0.75kW (400V 3-phase)
• Input: 3-phase AC 380–480V ±10%, 50/60Hz
• Continuous output current: 2.4A; Peak overload current: 300% rated for 3s
• DC bus voltage: 540–820V DC
• Efficiency: Up to 98%

Motion Control Performance

• Current loop update cycle: 250μs ultra-fast response
• Supports 3 closed-loop control modes: Position / Speed / Torque
• Dual independent encoder interfaces: Incremental HTL/TTL, SSI, EnDat absolute encoder
• Built-in simulated encoder output for slave axis electronic gearing
• Electronic cam, flying shear, electronic gearbox, spindle positioning native function library
• Automatic inertia identification, multi-stage notch filter for mechanical vibration suppression

Communication Interfaces

• Onboard dual Ethernet (Modbus TCP, EtherNet/IP) for real-time motion command & HMI/SCADA connection
• RS485 Modbus RTU for peripheral sensor communication
• SD card slot for one-click parameter backup, program cloning, trend log storage
• USB local service port for PC commissioning via Unisoft software

Safety Function

• STO (Safe Torque Off) safety circuit, SIL2 / PLd certified, cuts motor torque instantly without powering down the drive
• Overvoltage, undervoltage, overcurrent, overheat, encoder fault, phase loss full protection

Mechanical & Installation

• Mounting: Standard 35mm DIN rail vertical cabinet installation
• Protection grade: IP20 (indoor control cabinet only)
• Built-in cooling fan with fault detection
• Terminal block power wiring, compatible with shielded motor/encoder cables
• Operating temperature: 0℃ ~ 50℃, 95%RH non-condensing
• Compliance: CE, UL, RoHS, IEC 61800-5-2 functional safety standard

Key Features

1. Universal motor compatibility: Drive AC induction, PM servo, hybrid PM, linear servo motors with one unit
2. High synchronization performance: Microsecond-level axis sync for multi-axis linkage equipment
3. Integrated machine logic: Onboard IEC61131-3 PLC, independent operation when upper controller offline
4. Modular expandable: Optional fieldbus cards, external encoder splitter, braking resistor module
5. Low harmonic input, optional EMC filter to suppress workshop frequency converter interference
6. Regenerative energy support, match external braking resistor for frequent acceleration/deceleration loads

Applications