VLT® FlexMotion™ Integrated Servo Drive ISD® 520

VLT® Integrated Servo Drive ISD® 520 combines a high-performance decentralized servo drive and servo motor in a single compact unit, delivering up to 13.8 Nm nominal torque. It is ideally suited for applications such as turntables, labeling machines, capping systems, and packaging equipment in the food and beverage, pharmaceutical, metal forming, material handling, and textile industries.

Integrated motion control enables the drive to execute motion sequences autonomously, reducing the workload of the central PLC and simplifying machine architecture. In addition, advanced functional safety over EtherCAT provides a state-of-the-art safety solution that streamlines machine design and reduces engineering effort.

The Plug-and-Twist hybrid cabling concept combines power supply, control voltage, functional safety, and fieldbus communication in a single connection, enabling fast, reliable, fail-safe and cost-efficient installation. Multiple decentralized drive units can be powered from a single VLT® Power Supply Module PSM 520 using simple daisy-chain wiring, significantly reducing cabling complexity and installation costs.

Optional VLT® FlexSafety™ provides advanced functional safety functions, including Safe Brake Control (SBC) and Safe Brake Test (SBT), enabling safety-certified control and monitoring of motor holding brakes in accordance with IEC 61800-5-2.

Main characteristics:

• Nominal torque range: 1.65 to 13.8 Nm
• Nominal speed range: 2,000 to 6,600 rpm
• Rated voltage: 565 to 680 V DC (±10%)
• Protection class: IP67 / UL Type 4X (indoor use only)
• Vibration class: 3M7
• Motor feedback: 17 to 20-bit single-turn and multi-turn encoders (standard and safety variants)
• Optional mechanical holding brake with integrated Safe Brake Control (SBC) and Safe Brake Test (SBT)
• Safety functions: STO, SS1, SS2, SOS, SLA, SAR, SLS, DLS, SSR, SLP, SLI, SDI, SCA, SSM, SBC, SBT