Step 5—Standard Parameter List
10
Variable Speed Drives Series III
LIT-12012996—April 2018
www.johnsoncontrols.com
Step 5—Standard Parameter List
Introduction
The Basic Application is designed for preloaded application
sets for use with HVAC specific terminology and functions.
It has the patent Active Energy Control algorithm that will
improve your efficiency as well as minimize losses in your
motor throughout the defined speed range. It provides the
ability for the user to define its Hand and Auto control and
reference signals with the standard Off condition as well.
In addition there is the ability to scale the analog input and
output signals to be read based off the desired motor
response. There are also 8 digital inputs, 3 relay outputs, and
1 digital output that can be programmed to allow for control
schemes that require the drive to have certain functions. It
provides full customization on the motor control sequence
with the ability to be in frequency or speed control mode, and
tuning of the V/Hz curve can be selected. Drive/Motor
protections can be customized to defined actions for added
user control. Below is a list of other features that are
available in the Basic Application.
Basic Application includes functions:
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Bypass control
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Fire mode
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Pre heat/cold weather mode
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Hand/Off/Auto in individual button for easy change of
control mode
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Programmable protections
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Programmable digital/analog input/output function
●
Programmable start/stop signal logic
●
Voltage and current limiters
●
Energy Savings Calculator
●
Two independent set of Acceleration/Deceleration ramps
●
Skip frequency
●
Start source (Local/Remote control function)
●
Reference source
●
Flying start
●
Volts per Hertz control programmable
●
Real time clock—RTC time display
●
Auto restart on fault to drive or bypass
●
Programmable switching frequency
●
Multi-preset speeds
●
Fan control
●
DC brake
I/O Controls
“Terminal To Function” (TTF) Programming
The design behind the programming of the digital inputs in
the DH1 drive is to use “Terminal To Function”
programming, which 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 which
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. The IOY
determines the type of card it is, which would be IO1 or IO5.
The Z indicates which input is being used on that available
option card.
“Function To Terminal” (FTT) Programming
The design behind the programming of the relay outputs and
digital output in the DH1 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 Standard Application are explained in
Appendix A of application manual.
The explanations are arranged according to the parameter
number. For the DI function, we use Terminal programming
method to function (TTF), where there is a fixed input that
gets programmed to a list of functions. This allows for
multiple inputs to be used for different functions. Connecting
a certain input with a certain parameter function is done by
give a parameter an appropriate value. The value is formed
by the location of the input, either being on the standard
control board or an external option board and the slot it is
located in.
