Digital input/output set-up, Analog input/output set-up, Configuration links set-up – Rockwell Automation 1395 Digital Reference Adapter for RTP Applications User Manual

Page 34

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Publication 1395-RTP-5.2 - September 1997

5-4

Start-Up Instructions

The digital outputs 1, 2 and 3 are either receiving information

via the logic status Parameter 100 or via the internal output
digital logic depending on their respective parameter. In all
cases, it is important to note that once a configuration link is
established, data is transferred between the linked parameters
automatically. Nothing further needs to be done.

Refer to Sheet 4 of Drawing 144041-18 located in the system

binder. The Drawing shows the analog #1 input and depicts
the relationship of the Dancer potentiometer and the digitally
set flags of DFP_FLG (web out), DMP_FLG (dancer at mid
position), and DCP_FLG (dancer at center position).

Refer to Sheet 5 of Drawing 144041-18 located in the system

binder. The Drawing provides a detailed signal flow of the
major regulating speed loops and the associated gains, clamp
levels and control interlocks. The digital reference
proportional integral (PI) regulator on the Digital Reference
Adapter provides a separate integral clamp apart from a total
P/I regulator clamp.

Digital Input/Output Set-up

The Digital Inputs are provided to allow discrete signals to control
Drive operation.

All of the 9 active inputs are brought into the Drive logic state
machine internal Adapter Board logic and used to generate the
necessary states and resulting commands to Parameter 400 and 450.
Parameters 570 through 577 are the set-up parameters which are set to
16, directing all of these inputs to the Drive state machine logic.

Analog Input/Output Set-up

The Analog I/O requires more extensive set-up than the digital I/O.
Digital Scale and Offset Parameters must be adjusted for each specific
Analog device. Each device has a specific variable parameter, which
must be linked to a Drive Variable parameter to transfer information.
Additionally, both analog inputs have analog offset and analog
programmable gain parameters which are digitally adjustable.

An example for analog input #1 is shown in the logic state drawings
contained in the system binder, which is the default set-up for the RTP
Unwind Drive application.

Configuration Links Set-up

The following is an example of entering the links as shown in the
logic state drawings contained in the system binder, assuming the
system is in an initial non-stored EE, initialized state. The example is
accomplished using the standard handheld programming terminal,
Allen-Bradley Cat #1300-EHT.

SELECT MODE

[6 ENTER]

DRIVE SETUP 1-3
< 1-CONFIGURE > (BLINKING) [ENTER]
< 1-READ/EDIT > (BLINKING)

[ENTER]

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