g.mccormick (Customer) asked a question.

May 2, 2023 at 5:57 PM
Reer M1 safety controllers questions

I have a few questions about this before I dig too deeply into it for potential use.

  1. For a M1 safety controller, I am sure that I can just have its output control a standard safety extension module such as the LG5929-60-100-61. Is there any reason it cannot?
  2. For the M1 safety controller, is there a way to have the safety logic auto reset the outputs once the inputs are true? I have not dug much into the manual yet.
  3. For the M1 safety controller, is there a was to have a delay off? I will need to have 1 set of outputs immediate off and one set to be delay off.
  • 4 answers
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  • ADC Community_02 (Automationdirect.com)

    1) Yes, the M1 safety controller can be wired to the LG5929-60-100-61

    2) yes, you can do this, but you will need to wire feedback from the LG5929 or whatever other outputs you have back to the M1 controller.

    3) yes the Mosaic software can program timers.

    4) you can’t have on input reset multiple input blocks, but you can wire one reset to multiple inputs and then program each of those inputs to reset each of the input blocks. Or you can set your OSSD to have a manual reset, and have your input blocks automatically reset. How you do this depends on your system and risks associated with your system.

    5) there are several blocks you can use. You should always use the block that best describes the safety device. Single E-Gate, E-Stop, enable, footswitch, sensor, switch and many others can all be programmed as single channel devices. 

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  • g.mccormick (Customer)

    Questions continued.

    4.Can I or how can I have 1 input reset mutiple Estop instructions?

    5.For generic single channel safety inputs, is the Estop the best instruction? Otherwise do you just use the "Testable safety device"

  • ADC Community_02 (Automationdirect.com)

    1) Yes, the M1 safety controller can be wired to the LG5929-60-100-61

    2) yes, you can do this, but you will need to wire feedback from the LG5929 or whatever other outputs you have back to the M1 controller.

    3) yes the Mosaic software can program timers.

    4) you can’t have on input reset multiple input blocks, but you can wire one reset to multiple inputs and then program each of those inputs to reset each of the input blocks. Or you can set your OSSD to have a manual reset, and have your input blocks automatically reset. How you do this depends on your system and risks associated with your system.

    5) there are several blocks you can use. You should always use the block that best describes the safety device. Single E-Gate, E-Stop, enable, footswitch, sensor, switch and many others can all be programmed as single channel devices. 

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  • g.mccormick (Customer)

    I have started to play with the configurator and it is fairly straight forward.

     

    More Questions:

    1. For automatic reset of an OSSD output, does the feedback have to be tied to 24VDC constantly, or can you/shoulld you use the NC safety monitoring contacts from a safety extension module or force guided relay for contact reinforcement? This would be like taking 24VDC through Y2->Y1 on a 5929 extension module and into the feedback or from the NC set of contacts on a force guided ice cube relay/contactor into the feedback.
    2. Does the bus connectors only connect comms and not any power?
    3. If using the MBEM comms module, is there anyway to use it to set things like timer values etc? Can it only be used to read/write bits for statuses?
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    • ADC Community_02 (Automationdirect.com)

      I’d recommend going through the manual. All safety system designs need to follow the manufacturer’s instructions and address all items of the risk assessment. That being said:

       

      1. you should use the NC safety monitoring contacts. The Safety controller is going to test for welded contacts if you don’t monitor your outputs then there may be a non-detectable fault which would lower your performance level.
      2. Correct the bus connectors only connect comms not any power
      3. The MBEM comm module allows the PLC to see the status of the bits. It is not used to set thinks like timers. 

       

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