RC Systems ST-72, Instruction Manual

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ST-72 User's Manual
Document: UM-1007 Revision Level A
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2.4.2.5 HORN ON
The
HORN ON
entry allows linking this alarm to the common horn relay.
NO
causes
the alarm to have no effect upon the horn relay. Entering
YES
causes this alarm to
turn the horn relay on steady, or, to pulse it depending upon horn configuration in the
system menu (
see section 2.3.2.1 ).
2.4.2.6 COLOR
COLOR
gives the option of assigning A2 or A3 alarms different colors besides the
default RED. The options are RED BLUE and ORANGE.
2.4.2.7 ENABLED
ENABLED?
Alarm 3 only. Because most applications require only two alarm levels, A3
is turned
NO
(off) from the factory.
YES
activates the A3 alarm level if needed.
2.4.3 FAULT ALARM MENU
The channel alarm identified as Fault activates when the input is out of range in the
negative direction. The fault level is always low trip and the dedicated common fault
relay is always failsafe. The minimum setting is -10% of full scale. The factory default
setting is -10; which is -10% of 100 or default full scale value. If the full scale value is
changed the fault value is automatically updated to reflect the new value. For example
if the fault level is -10 and the full scale value is changed from 100 to 50 the fault level
will automatically changed to -5 which is -10% of the new full scale value. If the fault
level is -5 (-5% of full scale) and the full scale value is changed from 100 to 50 the fault
level will automatically changed to -2.5 which is -5% of the new full scale value.
Channel 38 Config
Alarm 2
Alarm 3
Fault Alarm
Data From
Linearize
Configure ~
~
~
~
~
~
Alarm 1 ~
Ch. 38 Fault Alarm
SetPoint -10
Figure 2-16
2.4.4 DATA FROM MENU TO SET INPUT SOURCE
Channels may be independently configured to accept input data from the following
sources:

An analog input PCB attached to the I
2
C bus. These include Analog and Bridge
input boards.