Position sensors and object recognition
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Fluid sensors and diagnostic systems Bus system AS-Interface Control systems Identification systems
 
Non-contact fail-safe inductive switch.
 
 

 
Robust self-monitoring design without coded magnet or keyed target.
  • Certified to EN 954-1, category 4 PDF-M or PDF-S to EN 60947-5-3.
  • Suitable for personnel or machine safety.
  • Safe function without specific coded target.
  • Sensors can be connected to safety PLCs, bus systems and logic modules.
  • Easy series connection of the sensors, also in combination with mechanical switches.
Function
A special counterpart such as a coded magnet or shaped target is no longer necessary for the function of the failsafe sensor. The fail-safe inductive switch detects metals like stainless steel or mild steel. It operates with an enable zone which is monitored for target position and dwell time. An adjustment mode facilitates mounting.
With reduced mounting input up to 10 fail-safe sensors can be connected in series in combination with further mechanical contacts.
For the first time, the principle and advantages of inductive proximity switches can also be used for safety applications. A wear-free function due to the non-contact principle and a high protection rating guarantee high uptime of the machines and installations even in difficult environments.
Non-contact and safe detection of products is now possible. For applications in conveying processes roller lever switches or counterparts such as magnets are no longer necessary.
The input and output signals of the sensors correspond to DIN EN 61131-2. They are therefore fully compatible with and can be connected to the inputs and outputs of a PLC. The possible connection to ifm evaluation relays, the bus system AS-i Safety at Work, PROFIsafe, Interbus Safety, safe PLC and logic modules via TÜV-certified software modules facilitates use.

Window technology
The fail-safe inductive sensors work with the “window technology”. This technology is the basis for the failsafe sensors without additional counterpart such as coded target or magnet. The damping element is safely detected in the enable zone after a certain dwell time.

Connection and evaluation
The ifm fail-safe switches can be directly connected to existing PLC and logic modules. TÜV-certified software modules enable easy connection to the process. The connection to the safe bus systems AS-i Safety at Work, PROFIsafe and Interbus Safety is just as easy. The evaluation units from ifm electronic enable the functionalities such as muting or connection of e-stop devices to DIN EN 60947-5-1 without extra cost.

 GM504S - Housing rectangular 40 x 40 mm, 10...15 b
 GM505S - Housing rectangular 40 x 40 mm, 10...20 nb
 GG505S - Housing M18
 GI505S - Housing M30

Further information: Bulletin (PDF-file 672 kB).


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