HI all,
I am new to ABB robots industry.
we have IRC5 controllers and considering to add servo disconnects for each robot controllers.
sorry about that my knowledge of servo disconnect is basic.
My understanding is that the servo-LOTO disconnects the servo-brake in the 'enerfized'state, what if plant loses power in the 'servo disconnect LOTO' state?
Will the brake on the servo dis-engage then?
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here are the what our integration company advices and wanted to know more detail about the servo disconnect and plc before we proceed. Thanks guys
"I agree that with the frequency you are doing this represents a long term reliability issue with the robots – for this I would suggest that we get you a quote to add a servo disconnect to each robot controller. This will allow you to leave the controller powered – the servo system will just be left without power – typically these switches are lockable – providing an adequate lockout point that is an actual energy control device.
We should check with UBSafe about the blowers and possibly the door on RMC we may need to also provide a quote to separate the PLC/24V power on the system from the 600V so that we can shut off the 600V power feeding those motors and keep the PLC/HMI/Network live. However I don’t believe that anyone can argue that a PLC being powered inside an electrical panel poses a risk to someone in the cell if all other forms of energy have already been controlled."