PLCADD 1616 Manual Discrepancy?
Posted: Wed Jan 26, 2022 2:00 pm
so im reading the manual for the 1616 board and the table says its relays are rated for 10amps at 120vac or 5amp at 30vdc. what i'm seeing printed on the relays contradicts that information. https://www.centroidcnc.com/downloads/C ... DD1616.pdf
looking at the pcb you can clearly see the relays are all TE Pch-105d2h rated at 5amp NO 3amp NC for 277vac same amp rating for up to 30vdc. I'm wondering if centroid updated the design of the PLCADD1616 and didn't update the manual on their manuals web page to reflect the change
it appears all the relays on the board are NO/NC Pch-105d2h type its just a pcb design limitation that only allows 14 of them to be used NO and two of them to be both NO/NC. If you was in a pinch and needed to, i guess you could solder an extra NC terminal off a relay pin on any of the other 14 if you needed an extra NC.
anyone got any thoughts on this, it would be nice if the relays were all 10amp as you could run a lot more stuff straight off the board but i suspect 5amps NO and 3amps NC is the real limit. also if the older boards were 10amp rated then some people will have to be careful if their board ever fails and they need a replacement as it will be a lower rating.
looking at the pcb you can clearly see the relays are all TE Pch-105d2h rated at 5amp NO 3amp NC for 277vac same amp rating for up to 30vdc. I'm wondering if centroid updated the design of the PLCADD1616 and didn't update the manual on their manuals web page to reflect the change
it appears all the relays on the board are NO/NC Pch-105d2h type its just a pcb design limitation that only allows 14 of them to be used NO and two of them to be both NO/NC. If you was in a pinch and needed to, i guess you could solder an extra NC terminal off a relay pin on any of the other 14 if you needed an extra NC.
anyone got any thoughts on this, it would be nice if the relays were all 10amp as you could run a lot more stuff straight off the board but i suspect 5amps NO and 3amps NC is the real limit. also if the older boards were 10amp rated then some people will have to be careful if their board ever fails and they need a replacement as it will be a lower rating.