PSR safety relay - Utmost safety
A new module with safe, slow-release contacts was incorporated in the PSR safety relay product family. Over a narrow 45 mm, the articles provide three enabling current paths and one signaling current path without delayed dropout for category 4 in acc. with EN 954-1. Furthermore, two slow-release enabling current paths - adjustable up to 300 seconds - are available. One or two-channel control is possible. After the safety inputs have been enabled, the module starts automatically or manually.
A connected start button is monitored to check that it functions correctly. To protect them against manipulation, the switches accessible from the top can be covered with the enclosed decal after startup.
All products of the family include pluggable screw connecting or spring-cage connecting terminal blocks as standard.
What are the arguments for it?
- High level of safety
- Comprehensive diagnostics
- Reduced space requirements in the control cabinet
What are the arguments for it?
- Critical motions under control
- Safety category 4/EN 954-1 and SIL 3
- User-friendly software
Safety relay for speed monitoring
New 45 mm slim PSR modules comfortably monitor drives up to safety category 4/EN 954-1 and SIL 3 - without any extra device hardware. Critical motions are monitored in the following operating modes: downtime, setting up and automatic mode.
The devices have safe relay outputs to detect downtime and to monitor the maximum speed. Drive motions are either measured by the existing measuring system, such as an encoder, or by two proximity switches. The sensors are connected to the measuring systems using conventional RJ 45 cable adapters.
Parameters instead of programming
