adnan_hayat88
Member
We have a standard to install fusible TB's at PLC AI/AO channels and knife TB's at PLC DI/DO channels. Also the 24 vDC field power supply to all PLC cards is also through fusible TB's.
Now we have a client whose system has got all Isolated channel cards(DI,DO,AI and AO). He is asking me to remove fusible TB's from the entire panel and used Knife TB instead. His point is that installing Fusible TB at the power of cards is creating an additional risk. This can bring the whole Plant
down.
Also since the cards have isolated channels they will be protected in case of short circuit.
Should I take his feedback and do so or keep the original design?
Now we have a client whose system has got all Isolated channel cards(DI,DO,AI and AO). He is asking me to remove fusible TB's from the entire panel and used Knife TB instead. His point is that installing Fusible TB at the power of cards is creating an additional risk. This can bring the whole Plant
down.
Also since the cards have isolated channels they will be protected in case of short circuit.
Should I take his feedback and do so or keep the original design?