Watlow CAS - Manual (Page 70)

60 CAS User’s Guide
Setup
High Process Alarm Output Number
This menu lets you choose the digital output that activates when the
channel is in high process alarm. You can use this output to activate a
second alarm horn or buzzer.
Selectable values: 1 to 34, None
NOTE
All digital outputs are combined. Therefore you can assign more
than one alarm to the same output number, and that output will be
On if any of those alarms is On.
Deviation Alarm Value
This menu lets you set the deviation bandwidth, a positive and negative
alarm point relative to the setpoint. If the setpoint changes, the alarm
points also change. You can assign a separate digital output to the high
and low deviation alarm setpoints.
Selectable values: 0 to 255, 25.5, 2.55, .255 or .0255, depending on the
way you set up the Input menus.
High Deviation Alarm Type
This menu lets you disable the high deviation alarm function or set it to
the alarm functions. (The high deviation alarm activates if the process
value (PV) rises above the deviation band value, and remains active
until the PV goes below the deviation band value minus the deadband
value.)
Selectable values: Latched, Unlatched, or Off.
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
01 HI PROC ALARM
OUTPUT ? NONE
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
01 DEV ALARM
VALUE ? 25
°
F
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
01 HI DEV ALARM
TYPE ? LATCHED