Johnson Controls Penn System 450 Series Technical Bulletin page 77

Term
HI-3
High Input Signal
Selection
Hybrid Analog
Output Control
Module
x
I-C
Definition
A functional High Input Signal Selection Sensor that references three
hard-wired sensors of the same Sensor Type. When you set up the
hard-wired sensors Sn-1, Sn-2, and Sn-3 as the same Sensor Type,
functional sensor HI-3 is available for selection when you set up the
control system outputs. Outputs that are set up to reference HI-3 use the
highest of the three condition values (sensed at Sn-1, Sn-2, and Sn-3) to
control the output. High Input Signal selection is available on standard
control modules with firmware Version 2.00 or later, hybrid analog output
control modules, and communication control modules, but is not available
on reset control modules. See High Input Signal Selection on page 24 for
more information.
Functional High Input Signal Selection sensors (HI-2, HI-3) enable an
output to reference two or three hard-wired sensors of the same Sensor
Type and control the output by responding to the input sensor that is
sensing the highest value (temperature, pressure, or humidity) from the
two or three sensed values. The High Input Signal Selection feature is on
standard control modules with firmware Version 2.00 or later, on the
hybrid analog control module, and also on the communication control
modules. See High Input Signal Selection on page 24 for more
information.
A control module with hybrid analog output provides an analog output on
which you can set up a pulse region to control very low speeds on variable
speed EC motors. The hybrid analog output control module provides many
of the same control types and features as standard control modules.
Differential control is not available on hybrid analog output control
modules. See Hybrid Analog Output on page 14 for more information.
In the Integration Constant Selection (I-C
Setup screens, select the I-C value for analog output x in your control
system. There are 7 integration constants values to select from (0 through
6). In most applications, the default integration value 0 (no integration
constant, proportional-only control) is the recommended selection. See
Proportional Plus Integral Control and Integration Constants on page 23
and Determining the Integration Constant for an Analog Output on page
56 for more information.
x
) screen in the Analog Output
77