The SD6 servo drives are motion controllers for electric synchronous (servo) and asynchronous (induction) motors, featuring the SE6 safety module, which is a joint development by STOBER and Pilz GmbH & Co. KG. With high computational power, the SD6 calculates the position, speed, and torque control of the servo axis every 62.5 μs. The rated current ranges from 2.3 to 85.0 A.

SD6 servo drives with safety functions

Properties of SD6 Servo Drives:

• Integrated 32-bit dual-core processor.
• Built-in functions for positioning, synchronization, flying saw, electronic gearbox, speed, and torque control.
• High dynamic control of position, torque, and speed, calculated in a 62.5-microsecond (16 kHz) cycle.
• Maximum positioning resolution: 33 million pulses per servo motor revolution.
• Operates in a feedback loop.
• Output frequency regulation range: 0 – 700 Hz.
• Safety technology: Safe Torque Off (STO) as standard.
• Operates in CiA 402 mode.
• Communication via PROFINET IO, EtherCAT, or CANopen.
• SD6 supports PROFINET IO-RT communication.
• Internal IGB system bus for parameterization, programming, and synchronization of multi-axis drive applications.
• Regenerative energy utilization in multi-axis applications via DC-link coupling bus.
• Integrated 24V (DC) brake management.
• Optional digital and analog inputs and outputs.
• Brake management with cyclic brake testing and brake running-in functions.
• Free DriveControlSuite software for fast commissioning, programming, and application diagnostics.
• Custom programming compliant with PLCopen standards.
• Paramodul – replaceable memory card for application parameters.
• Automatic motor parameterization via the electronic nameplate of the servo motor.
• Independent power supply for power and control sections.
• Integrated line filter.
• Compliant with machine, low-voltage, and EMC directives.
• Protection class IP20 – designed for installation in electrical cabinets.
• Galvanized steel housing.
• Certifications: CE, UL (UL508C and UL840), cUL (CSA-UL).

SD6 Servo Drive Compatibility with Encoders:

• Absolute EnDat® 2.1/2.2 Multiturn/Singleturn
• Absolute EnDat® 3.0 – single-cable OCS
• Absolute SSI
• Incremental
• Resolvers
• Optional: EnDat® 2.1 sin/cos

SD6 Servo Drive Communication Capabilities:

• EtherCAT®
• PROFINET®
• CANopen®

Extended Safety Technology in SD6/SE6 Servo Drives

SD6 servo drives with the SE6 safety module offer innovative, encoder-independent safety functions and safe management of up to two brakes.
The comprehensive safety functions comply with EN 61800-5-2 and are certified according to SIL 3, PL e (Cat. 4).
In addition to the Safe Torque Off (STO) function, the safety functions include advanced stopping and monitoring features in accordance with EN 61800-5-2.

Extended Safety Functions (SIL 3, PL e, Category 4):

• STO – Safe Torque Off
• SS1 – Safe Stop 1
• SS2 – Safe Stop 2
• SLS – Safe Limited Speed
• SBC – Safe Brake Control
• SBT – Safe Brake Test
• SDI – Safe Direction
• SLI – Safe Limited Position

Advanced Stopping and Motion Functions in SD6 Servo Drives with SE6 Module:

• SS1, SS2, SDI, SLI, SLS, SOS, SSR, SLP
• In addition to SS1, ten additional safety functions can be parameterized and flexibly assigned.

Safe Brake Management in SD6/SE6 Servo Drives:

• Safe control of up to two brakes (SBC)
• Testing and necessary monitoring of the test cycle (SBT)
• Complies with DGUV safety requirements for gravity-loaded vertical axes

Safe Monitoring in SD6/SE6 Servo Drives:

• SDI, SLI, SLS, SOS, SSR, SLP available as monitoring functions

Controlled Stopping in SD6/SE6 Servo Drives:

• Application-specific drive stop in case of exceeding limit values or emergency stop

Optional Direct Control or Safe Monitoring of the Braking Ramp

Are Your Drive Movements Safe?

The SE6 safety module from STOBER provides safety functions for applications requiring SIL 3, PL e (Cat. 4) certification, in compliance with DIN EN 61800-5-2 and DIN EN ISO 13849-1 standards.

SE6 offers safety functions beyond the basic Safe Torque Off (STO). In addition to Safe Stop 1 (SS1) and Safe Stop 2 (SS2), it includes Safe Limited Speed (SLS), Safe Brake Control (SBC), Safe Direction (SDI), and Safe Limited Increment (SLI). These standard safety functions are enhanced with practical additional features, such as Safe Brake Test (SBT).

Are Your Vertical Drive Axes Safe?

Safe brake management is more than just safe control!
The German Social Accident Insurance (DGUV) defines safety requirements for gravity-loaded vertical axes.

Safe Brake Management:
With the optional SE6 safety module, the SD6 drive system meets DGUV safety requirements for gravity-loaded vertical axes. The Safe Brake Management feature allows for:

• Safe control of up to two brakes (SBC).
• Testing and continuous monitoring of the test cycle (SBT).

Are Your Safety Functions Flexible Enough?

Choose drive components from STOBER’s entire product range for safety-related applications.
The multi-vendor interfaces allow free selection of motors and encoders, including:

• Synchronous servo motors,
• Asynchronous motors,
• Linear motors,
• Synchronous servo motors with a hollow shaft, etc.

Continue using your existing motor, encoder, and cable—or select the best option for your needs!

Fully customizable functionality:
Beyond the basic SS1 function, you can configure and flexibly assign 10 additional safety functions to safe inputs and outputs.

Simple service concept:
For maintenance, simply replace, verify, and test the Paramodul—that’s it! No special skills required.

Safe monitoring instead of forced shutdown:
This function enables flexible safety control solutions, especially in complex systems.

Controlled shutdown:
Benefit from:

• Short reaction times,
• Reduced safety distances,
• Faster recovery times.

SE6 allows application-specific stopping if a limit value is exceeded or during an emergency stop. You can either directly control the braking ramp or monitor it safely.

Do You Need to Sacrifice Performance or Availability?

The STOBER SE6 safety module provides a simple, streamlined solution.
Save space, time, and costs!

• Use standard components: No need for special motors, encoders, cables, or additional stuck detection or speed monitoring switches.
• Fast response: The worst-case reaction time is under 10 ms, ensuring quick stops and safe distances.
• Prevent accidental activation: Monitor limit values based on position and filter out unwanted interference pulses with adjustable tolerance windows.
• Continuous monitoring: Independent real-time monitoring, reducing the need for safe I/Os on the higher-level safety controller.
• Quick and easy system startup:
  The DriveControlSuite software guides users through safety function selection and parameterization with wizards, while also supporting motion monitoring and diagnostics.