Rockwell Automation 1395 Digital Reference Adapter Board - Manual (Page 48)

Chapter 6
StartĆUp
6-2
Each Set-Up parameter associated with a specific input/output is used to
define the device connected to that input/output. Often there is more than
one Set-Up parameter associated with the I/O. Analog inputs and outputs
require two for scaling and offset of the value.
Figure 6.1 shows the
parameters required for each I/O device used.
To use this board with the Bulletin 1395, the Configuration parameters
must be linked to the proper parameter in the Drive. This sets up the LINK
files so that during run-time operation, the proper parameters are
transferred to and from the Digital Reference Adapter Board.
You must use the Programming Terminal to program the Digital Reference
Adapter Board. A detailed description on how to use the Programming
Terminal is provided in the appropriate Programming Terminal Installation
and Operation Manual.
Example StartĆUp Configuration
The example in Figure 6.1 shows the Digital Reference Adapter Board in a
typical start-up configuration.
In Figure 6.1 the Digital Reference Adapter Board is connected to Port A
of the 1395 Drive. All external wiring to the Digital Reference Adapter
Board will be terminated at terminal block TB3 located on the bottom of
the Drive. The two digital inputs in the example consist of two user
supplied pushbuttons.
Digital Inputs & Outputs
Digital Input 1 is a normally closed input, while inputs 2 through 10 are
normally open. In this example, Parameter 584, Digital Input 2, has a value
of 10. A pushbutton has been wired into terminals 44 and 53. When Digital
Input 2 is closed, bit 10 of Parameter 400 is set to 1. Parameter 400 is a 16
bit word. When Parameter 151, Logic Command 2 has been linked to
Parameter 400, Bit 10 of Parameter 400 is also set on. The associated
function of Bit 10 is Jog 1. As a result, when Digital Input 2 is closed, the
Drive will begin to jog at a speed defined by Parameter 638 (Jog 1). Digital
Inputs 1 through 10 are configured in the same manner. Each digital input
controls a bit in Parameter 400. This information then controls the bits of
the Sink parameter that Parameter 400 has been linked to.
The five digital outputs are configured in the same manner as the digital
inputs. Parameter 450 of Port A is a 16 bit word that is linked to a bit
coded output parameter from the Drive. In this example, Parameter 450 has
been linked to Parameter 100, Logic Status Word. As bits are set in
Parameter 100, the information is sent to Parameter 450 on the Digital
Reference Board, and the corresponding bits are set. Parameters 558 and
559 each contain a value between 0 and 15, which corresponds to one of
the 16 bits of Parameter 450. In this example, Parameter 558 contains a
value of 7. When bit 7 of Parameter 100 is set, it signifies that the Drive is
in the ready state. This sets Bit 7 in Parameter 450 in the ON state, which
in turn sends an output signal to Parameter 558. The pilot light wired to
terminals 62 and 54 will then be illuminated.