Cleaver-Brooks PCS140e.1, Инструкция по установке, эксплуатации и использованию, Страница: 18 / 28

PCS140e.1
16 750-329
Alarm Summary and History Screens
The screen displays the current alarms for the system. Each alarm is time stamped. The operator may
also acknowledge alarms at this screen. The ‘F4’ button is used to access the alarm history screen.
This screen displays a historical record of all alarms and the time they were acknowledged.
3.5-Control Panel
(1) HMI Display – The PLC has a built-in display screen. It shows all the information pertaining to the
LCS system and is the means for operator interface to the PLC. All operating parameters are entered
and/or adjusted via this interface.
(2) Power Supply – The 24 VDC power supply mounted on the back panel provides power to the PLC/
HMI.
(3) Relays – The relays provide dry contacts for use by the customer as well as an interface with the
pump motor starters.
(4) Circuit Breaker/Fuse Blocks – These provide protection from electrical shorts caused by improper
wiring or damaged electrical equipment.