CleaverBrooks ADAC 1000, Руководство по эксплуатации

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Chapter 1 — General
1-2 Part No. 750-386
1.1-Introduction
The Cleaver-Brooks ADAC 1000 is an exclusive Deaerator and/or
Surge Tank Management and Control System specifically designed
to integrate the functions of a Programmable Controller with other
operating and ancillary controls. The Programmable Controller
(PLC) is a modular design providing flexibility for expansion with
easily serviceable components. The ADAC 1000 system
incorporates a user-friendly, graphical touch screen Human
Machine Interface that displays tank parameters, fault annunciation
and alarm history, as well as providing access to system
configuration and control functions. The system provides a
complete tank level, tank pressure, and pump control solution.
In addition to installation on new Deaerators and Surge tanks, the
ADAC 1000 can be added as a retrofit to existing tanks. Call your
local authorized Cleaver-Brooks representative for details.
1.2-Single Tank System Description
A single tank system can control up to 5 pumps, all of which can
be run by contactors, combination starters, soft starters, or Variable
Frequency Drives. All pumps on a tank must utilize the same type
of starter/drive.
Pumps on a common header can be alternated on a customer
defined schedule and be set up in a customer defined lead lag
format.
When lead lag operation is in use, a pressure transmitter mounted
in the common header sends a signal to the PLC. The customer sets
the pressure point via the touch screen. If the first pump cannot
achieve that set point, the PLC will start a second pump and so on.
If the pressure rises above the set point, the PLC will shed the last
pump and so on. During normal operation the lead pump will
always run.
Pumps on a “one pump per boiler” installation can be controlled by
a contact closure on the boiler. Variable Frequency Drives cannot be
used in a one pump per boiler configuration where each pump is
hard piped to individual boilers. VFDs are only available on common
pump discharge header configurations.
Standard system is capable of using discrete level alarm switches
(such as the McDonnell Miller 63 or 64) for fixed level alarms, or a
level transmitter which can be configured from the touch screen.
OPC compliant Ethernet IP communications are included as
standard. This feature can be used to connect the ADAC 1000
system to a boiler Master Panel or customer BAS.
1.2.1 - Standard Equipment
The PLC based control system for a single tank includes a base unit
consisting of the processor and embedded I/O, power supply, I/O