CleaverBrooks ADAC 1000, Руководство по эксплуатации

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Chapter 2 — System Components
Part No. 750-386 2-7
controller. It transmits a 4-20mA process variable signal to the
controller for the purpose of displaying pressure inside the tank or
to provide a process value for optional PRV control.
• Hot Water Temperature Transmitter (Fig. 2-5); one per tank. This
transmitter provides a sensor input to the ADAC controller. The 4-
20mA signal is used to display water temperature in the tank.
2.2-Control Panel
Prior to configuring and commissioning the system, it is necessary to
confirm that all of the integral components and interconnecting wiring
are in place and secure. Vibration and jarring from transport or
installation may have loosened components or wiring terminals. It is
good practice to check all system components for integrity and
tightness prior to initial power-up of the system. Any external
interlock and remote signal wiring should also be connected to the
boiler controller.
DIN Rail Latch and Expansion I/O Module Locking Levers
Before powering up the control system for the first time, check that
all the DIN rail latches and expansion module locking levers are in
place (see Figure 2-8 and Figure 2-9).
Figure 2-6
Figure 2-7
The PLC and rack modules do not support removal and insertion under power. While the PLC system is under
power, any break in the connection between the base unit and the PLC rack (i.e. removing the base unit, PLC,
or an expansion module) will clear processor memory including the user program. Ensure that the electrical
power is OFF before removing or inserting any PLC device.
Important
!