Control System
2 CVHE-CLD-1A
Control System
Unit Control Panel
Safety and operating controls are housed in the
UCP2 unit control panel, the starter panel, and the
purge control panel.
The UCP2 control is a modular design partitioned by
major function or group of functions. All modules (see
Figure 2 ) communicate with each other through the
Interprocessor Communication Circuit (IPC).
Major components within each control group are
shown in the figure.
Unit-mounted temperature sensors, pressure
transducers, and functional switches provide analog
and binary inputs to the various modules.
The microcomputer-based modules are illustrated in
the figure. All wiring to the modules are to pluggable
terminal blocks.
Figure 2
UCP2 Control Panel
I/O Module
Stepper Mod
Options Mod
Chiller Mod
Circuit Mod