APC ACAC75009 Datasheet Page 12

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InRow RD Technical Data Manual6
Microprocessor Controller
Microprocessor Controller
The microprocessor controller is
standard on each unit. The controller
provides precision control for the
demanding requirements of the fol-
lowing environments:
Computer rooms
Telecommunication facilities
Clean rooms
Power equipment
Medical equipment rooms
LAN/WAN environments
The easy-to-use display interface
allows the operator to select options
from the menu-driven interface to
control and monitor the connected air
conditioning system.
Open Architecture
The InRow RD protocol is open for
integration with all building manage-
ment systems. Communication
interface on the system can be Mod-
bus RS485 or Ethernet.
Control Type
The controller utilizes proportional/
integral/derivative (PID), a time-
proven precision environmental con-
trol method. This allows for custom
tuning of control variables to achieve
desired system response.
Functions
Supply and return air conditions
Operational mode control
Event logging
•Alarms
Redundant group control
Fan speed adjustment
Input/output module programming
Logging
The event log keeps a record of all
alarms and events. Each event log
contains a time/date stamp as well as
operating conditions at the time of
occurrence. The controller also dis-
plays run time, in hours, for major
components (air filters, fans, and
condensate pump, as well as humidi-
fier, heater, and compressor for the
air-cooled unit).
Display Interface
The backlit, four-line by twenty-
character display interface is pass-
word configurable.
ESC
?
Status
Check
Log
Warni ng
Critical
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