AS-i Safety at Work field module.
 
 

 
 Safe signal detection and triggering of the locking mechanism.
  • Connection of mechanical NC contacts for applications to IEC 61508/ SIL3.
  • 2 safe inputs incl. cross-monitoring, 2 transistor outputs.
  • Certification to EN 954-1, category 4 and IEC 61508, SIL3.
  • Module with standardised EMS interface for AS-i and 24 V.
  • Connection of the unit by means of M12 sockets.
Introduction
The ClassicLine Safety at Work module connects mechanical safety switches to AS-interface. Evaluation to the Safety at Work protocol is carried out with one of the four available AS-i safety monitors. The safe data transmission on the AS-i bus has already been approved by TÜV and BIA and is suitable for the transfer of signals up to the highest category 4 to EN 954-1. Powerful LEDs on the front panel indicate switching states of the inputs and outputs, voltage supply and faults in the module, if any. All kinds of mechanical safety switches with two positively-driven contacts or two independent switches with one contact each can be connected to the two inputs. Due to the integrated cross-monitoring the two contact signals can be laid in one cable as possible faults by damaging the cable sheath, shearing or crushing are detected and signalled. Two red alarm LEDs which are freely programmable by the user like normal AS-i outputs can indicate the triggering switching inputs, furthermore the status can be stored permanently.

Advantages and customer benefits
  • Diagnosis and self-test
    The safe ClassicLine slave carries out a periodic internal self-test after power on. It is transferred as the safe state to the master. After power on and successful function test the Safety at Work protocol is started (not triggered = cyclical transmission of the code table). The two safe inputs are now ready for operation. During operation the redundantly designed module is permanently monitored. The inputs are monitored for cross fault. In case of a fault (triggered = code sequence “0000”) a red fault LED indicates the fault. In addition an AS-i peripheral fault is generated.
  • The Safety at Work system
    In principle, the AS-i safety technology consists of two components: Of one safe input slave for connection of the safety devices and the safety monitor as a monitoring element with positively-driven relays for the safe switch-off of the drives or actuators. The other AS-i standard components, like master and current supply, remain unchanged.
  • Addressing
    Addressing is done before mounting via the adapter integrated into the addressing unit or after mounting by means of a module lower part with addressing socket and an addressing cable with a jack plug. Using the ifm controller e addressing is even more convenient. The large graphic display gives the user an optimum overview.

Application
The fail-safe AS-i ClassicLine module can be used in a wide range of different applications. It is suitable where decentralised I /O, modular design and simplicity of the system are important and a high protection rating against environmental influence is required.

AC006S - ClassicLine safety module 2SI 2DO T
AC001S - Safety monitor 1-channel, 1SO R
AC002S - Safety monitor 2-channel, 2SO R
AC003S - Safety monitor, extended, 1-channel
AC004S - Safety monitor, extended, 2-channel
E7030S - Configuration software for safety monitor
E7001S - Serial interface cable SUB-D9/RJ45
E7005S - Bridging plug M12
AC5003 - FC-E coupling module

Further information: Bulletin (PDF-file 222 kB).