Hi there, I have a customer that has a specified standard of using a 1756-OB16E module with a 1492-IFM20D24 LED indicating interface module. In the past I have always used these modules with external physical fusing - usually by utilizing a 1492-IFM20F-F24-2 (fusible, with blown fuse indicators).
Can someone explain to me how these E-fuses work? From some investigation I can see that when added into my controller configuration in RSLogix5000 I gain access to the "Local:7:I.FuseBlown.0-31" tag
From the AB manual page 149: http://literature.rockwellautomation.com/idc/groups/literature/documents/td/1756-td002_-en-e.pdf
it specifies a max 1A/point, 8A/module and says they are fused per group.
What is the trip rating/time on these e-fuses? my understanding is that it's typical for an e-fuse to control a latch (as they inherently reset themselves after cooling off). Does this mean there are 16 individual e-fuses (8 in parralel to a latch) to come up with the 2 groups?
Last question - How are these reset programmatically? through an SSV?
Thanks,
Rem
Can someone explain to me how these E-fuses work? From some investigation I can see that when added into my controller configuration in RSLogix5000 I gain access to the "Local:7:I.FuseBlown.0-31" tag
From the AB manual page 149: http://literature.rockwellautomation.com/idc/groups/literature/documents/td/1756-td002_-en-e.pdf
it specifies a max 1A/point, 8A/module and says they are fused per group.
What is the trip rating/time on these e-fuses? my understanding is that it's typical for an e-fuse to control a latch (as they inherently reset themselves after cooling off). Does this mean there are 16 individual e-fuses (8 in parralel to a latch) to come up with the 2 groups?
Last question - How are these reset programmatically? through an SSV?
Thanks,
Rem