Ransburg RCS 2 Ratio Control System - Manual (Page 21)

is used as the source for these inputs, it must be
referenced to the ground terminal (terminal #1113).
There are two types of discrete digital inputs,
pulsed inputs and maintained inputs. The pulsed
inputs must be turned on and held on for 250 mil-
liseconds minimum, to insure operation. Multiple
DISCRETE CHANNEL AND
GUN INPUTS
All discrete digital inputs are optically isolated and
will function with an input voltage in the range of
10 VDC to 45 VDC. Factory jumper settings on
the interface and channel boards require that
voltage be sourced to the discrete input. If, how-
ever, a sinking input is required, inputs can be
reconfigured by changing those jumpers. (See
Appendix C for Channel Board Jumper Settings.)
It is recommended that the 24 VDC power supply
in the controller be used to source these inputs
(terminal #1331). Optionally, if an external supply
Figure 10: Gun I-O Sourcing-Sinking
>
Times stated above are for discrete
digital inputs only. When interfacing us-
ing Bradley's Remot I/O (aka RIO), these
times may vary significantly. (Refer to the
RCS-2 RIO Interface Programmer's Man-
ual for more details.)
NOTE
pulsed signals to a gun should also be separated
by 250 milliseconds. For example, don't turn the
halt/reset signal off at the same time that the run
signal is being turned on as results will be unpre-
dictable. Maintained signals operate as long as
the input remains energized.
Some discrete digital inputs are specific to a gun
and others are specific for a channel. If it is a gun
input and the gun is configured as a two channel
gun, field wiring must always be connected to the
master channel terminals (channel A).
Fast Fill
Type of Input: Gun
Type of Signal: Pulsed
The gun must be in run mode prior to initiating
this mode or the RCS-2 controller will ignore it.
If the gun is configured at a two-channel gun, and
this input is pulsed, the gun will be placed in fast
fill mode. The pumps will run at the maximum
speed possible while maintaining the target ratio.
That is, the software will determine which of the
two pumps can be run at its maximum speed (150
RPM) and run the opposite channel at whatever
speed is necessary to ensure the proper ratio
of component A to component B. The software
If the gun is configured as a single channel gun
and this signal is pulsed, the gun will be put in
fast fill mode. This will cause the pump to run at
its maximum rate (150 RPM) until the halt signal
is pulsed. (It is not necessary to have the trigger
signal energized.)
RCS-2 User Manual - Installation
18 LN-9407-00.2
Ransburg