Firmware Manual

Chapter 8—Multi-Purpose Application
PowerXL DG1 Series Adjustable Frequency Drives MN040004EN—March 2014 www.eaton.com 101
Chapter 8—Multi-Purpose Application
Introduction
The Multi-Purpose Application is designed for a large set of
applications with the ability to have advanced motor control
systems. It takes the same functions provided in the
Standard, Multi-Pump and Fan, and Multi-PID applications
and adds in some additional control techniques. The
application is designed with 2 control places that use 8 digital
inputs, 2 analog inputs, 3 relay outputs, 1 digital output, and
2 analog outputs that are programmable. Motor controlwise
it provides the ability to do frequency and speed control and
adds Open Loop Speed Control as well as Torque Control.
For tuning the V/Hz curve, it has the ability to go out and ID
the motor characteristic and enters those specific
measurements into its parameters for better control. Drive/
Motor protections are programmable for desired actions
depending on the application. Below is a list of additional
features available in addition to the Standard, Multi-Pump
and Fan, and Multi-PID Application features that are available
in the Multi-Purpose Application.
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Motor potentiometer reference control
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External Brake control
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Droop function with multiple loads
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Motor Identification
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Motor Control modes
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I/O Controls
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“Terminal To Function” (TTF) Programming
The design behind the programming of the digital inputs
in the DG1 drive is to use “Terminal To Function”
programming. It is composed of multiple functions that
get assigned a digital input to that function, the
parameters in the drive are set up with specific
functions and by defining the Digital input and slot in
some cases depending on the what options are
available. For use of the drives control board inputs they
will be referred to as DigIN:1 through DigIN:8. When
additional option cards are used, they will be defined as
DigIN:X:IOY:Z. The X indicates the slot that the card is
being installed in which will be either A or B, then the
IOY determines the type of card it is, which would be
IO1 or IO5, and the Z would indicate which input is
being used on that available option card.
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“Function To Terminal” (FTT) Programming
The design behind the programming of the relay outputs
and digital output in the DG1 drive is to use “Function To
Terminal” programming. It is composed of a terminal be
it a relay output or a digital output that is assigned a
parameter. Within that parameter, it has different
functions that can be set.
The parameters of the Multi-Purpose Application are
explained on Page 130 of this manual, “Description of
Parameters.” The explanations are arranged according to the
parameter number.