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O O p p e e r r a a t t i i n n g g P P r r o o c c e e d d u u r r e e s s
DO10 General Alarm
This digital output energizes when any of the following
alarms occur:
•
An alarm that shuts down and locks out
compressor 1 or 2.
•
An alarm that shuts down and locks out the entire
module.
DO11 Panel Heater / Fan (optional)
This is the digital output is used when temperature
control inside control panel is required (identical to
AI11).
Expansion IO Screen
This screen is only applicable to the primary module.
This screen controls analog inputs and digital requests.
AI1
These show the Suction Pressure of Circuit 2.
AI2
These show the Discharge Pressure of Circuit 2.
DI3, DI4
These show the Discharge / Suction Pressure switches
of Circuit 2. DI closed - pressure is in the normal range;
DI opened - pressure is exceeding normal range
threshold (faulty state).
Figure 18. Module trend screen
36
DI5
This is the feedback for Pump-down pressure switch of
Circuit 2. DI closed - pressure is in the normal range; DI
opened - pressure is exceeding normal range threshold
(faulty state).
DO1, DO2, DO6
This digital output is used to turn fans of Fan Bank 2 on
and off.
Trend Screen
When on the primary module screen, pressing the
trend button displays the trend screen. There are two
trend screens: cooling trend screen and heating trend
screen.
Module Trend Screen displays three trends: Controlled
inlet / outlet water temperatures and Module Demand
in %.
Trends can be viewed in real time as well as for the last
seven days. Each variable is trended every three
seconds. Trending data is stored on HMI internal
memory.
Apart from displaying trends, Module Trend Screen
has controls for viewing, scrolling, zooming, deleting
trends etc.
ARTC-SVX001B-EN
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