Delta RMC101 User Manual
Page 254
RMC100 and RMCWin User Manual
5-4
(sinking) outputs. See the discussion below for using sinking outputs.
Note:
Because the inputs are designed for use with 5V outputs, the threshold is 2.75VDC. This
is a small percentage of the 24V output. As a result, it is important that the inputs have very little
noise. If noise is a problem, we recommend that the wiring be rearranged so the noise in the
wires is reduced. If this is not feasible, try using the software input filters, or you may want to
consider using a voltage divider on the inputs. This is described below.
Digital Input Wiring Diagrams
The following are some input wiring diagrams:
Figure #3: Direct connection to Programmable Controller
Figure #4: Relay Connection from Programmable Controller
The RMC’s CPU inputs can also be connected directly to open collector (sinking) outputs. DI/O
inputs cannot be connected directly, as described below.