1introduction, 2 rcu interior (continued) – Alpha Technologies CFR Redundant Control Unit User Manual
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1
Introduction
1.2
A Tour of the RCU
Wiring:
The wiring diagram for the terminal blocks is shown in Figure 1.4. Both Inputs share a com-
mon ground
.
The alarm terminal block has Type C contacts to provide Contactor and Alarm status to the
monitoring system.
•
Contactor K1 is normally closed.
•
Contactor K2 is normally open.
•
Red Alert Alarm is open when the system is operating normally.
1.2.2
RCU Interior (Continued)
Figure 1.3
RCU Interior (Cutaway View)
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