Hello,
We have the following DI card from Siemens 6DL1131-6BL00-OPH1, which can have a 1 wire configuration. Can this card be wired to a 3 wire PNP sensor. With the 24v+ and 0v coming from a power supply and the signal going to an input channel?
Thank you
Hello,
We have a few drives and DOL starters which will be provided by others( in an MCC)We will supply an ESD panel which will house a safety relay and expansion modules. The proposal is to leave dry contacts in the ESD panel for each of the drives/starters to be wired into. I assume that the...
Hello,
I have a general question. If a control panel (plc modules etc) is powered from a ups source would it require a surge protector in the panel ?
Thanks
Hi,
With regards to instrument cabling
( PT,LT,FT etc) can anyone point me in the direction of information/ standards on how this is sized 0.5mm2 , 0.75mm2 , 1mm2 etc for a particular application.
Thanks
Hello, I have a question about 24vDc powering instruments from a control panel. My question is why do we use a 2 core cable going to the device/instrument and do not provide a 3rd for for the earth connection like would be provided if the device was powered by AC single phase?
Thanks
Hello,
I know that for 4-20ma transmitters twisted pair cable should be used with the screen grounded at one end only. However for digital signals ( limit switches , push buttons ) can 2 core/ part of a multi core cable be used ?
Thanks