SC300 Handbook
60
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
Smart Alarms
Smart Alarms
are a software simulation of logic gates to allow the logical combination of other
alarms, time schedules and/or system values. Up to 32
Smart Alarms
can be configured.
A single
Smart Alarm
is the equivalent of a multi-input AND, OR or XOR logic gate. More complex
logic arrangements are created by using one
Smart Alarm
as an input into another. For example:
Two input AND gate:
SAx = Sa AND Sb
Three input OR gate:
SAy = Sa OR Sb OR Sc
Multi-gate logic:
SAz = SAx OR NOT Sd
One input is Smart Alarm SAx (output from
another gate). The other input is negated. This
is available with Alarm Sources only.
Key:
SAx, SAy, SAz are
Smart Alarms
(entered in the
Smart Alarms
table).
Sa, Sb, Sc, Sd are the
Sources
(entered in the
Alarm Sources
,
Schedule Sources,
System Value Sources
, or
Manual Sources
tables).
Smart Alarms
also have optional activation and deactivation delays. When activated they can cause
alarm indications (unless
Severity
is set to
Control
) and can activate one or two digital outputs (in
the same way as other alarms).
Smart Alarms
may also be used to start and stop control functions, including Equalize, Peak Load
Reduction, and LVD.
For more information and application examples contact your Eaton DC product supplier and
request Eaton Application Note AN0106, SC200 Advanced Alarm Features. This also applies to
SC300.
