While safety PLCs are important for control systems, they’re not always necessary. For smaller operations, older machines and established control networks, in particular, the high costs associated with adding a safety PLC often outweigh the benefits. The good news is you can still have functional safety without one.Our Safety-M series provides a simple, easy solution to achieve safety levels up to SIL-3 PLe without a separate safety PLC. These standalone speed controllers offer many of the same benefits as larger safety systems—but at a fraction of the material and engineering costs.

Let’s take a closer look at this cost-effective, modular solution:

Safety Made Simple

The Safety-M series is a complete speed monitoring device housed in a compact package for installations with limited space. Suitable for a variety of applications, including workshop platforms, cranes and windmills, these devices integrate comprehensive speed- and position-related safety functions according to EN 61800-5-2, including:

  • Safe Torque Off (STO)
  • Safe Stop 1 (SS1)
  • Safe Stop 2 (SS2)
  • Safe Operating Stop (SOS)
  • Safely-Limited Speed (SLS)
  • Safe Direction (SDI)
  • Safe Speed Monitor (SSM)

When coupled with a SIL-certified encoder, the Safety-M series achieves functional safety levels up to SIL-3 PLe without a safety PLC. And unlike larger safety systems, these devices don’t require any complex programming: simply adjust your parameter using the removable operating and diagnostic display (OLED) or via the USB port and PC-based SafeConfig OS6.0 software.

Your Benefits at a Glance

In addition to its functional safety, compact size and easy parameterizing, the Safety-M series provides several advantages:

Easily integrate and retrofit. Thanks to its integrated signal splitter and safe inputs/outputs, you can easily integrate the Safety-M series into existing safety circuits. You can also retrofit it into older machines that would otherwise need costly modifications to meet Machinery Directive 2006/42/EC requirements.

Perform local diagnostics. With its status LED and removable OLED touch screen, each Safety-M module enables local diagnostics without additional PC software.

Save costs. Each Safety-M device is housed in a compact package—lowering your installation costs. Its integrated signal splitter for encoder signals also avoids expensive, complex external wiring. And best of all, the series doesn’t require any additional software or licenses. You can download the software for free off our website.

To learn more about our Safety-M speed monitoring series, visit our product page.

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