Watlow MLS Bedienungsanleitung Seite 104

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92 MLS User’s Guide
Setup
NOTE
All digital outputs are "OR'ed" together (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 Band Value
Use this menu to set the deviation bandwidth, a positive and negative
alarm or control point relative to the setpoint. If the setpoint changes,
the alarm or control points also change. You can assign a separate digital
output to the high and low deviation alarm/control setpoints- so that, for
example, a high deviation alarm turns on a fan and a low deviation alarm
turns on a heater.
Selectable values: You can set a value from 0 to 255, 25.5, 2.55, .255 or
.0255, depending on how you set up the input menus.
High Deviation Alarm Type
Use this menu to disable the high deviation alarm function or set it to the
alarm or control function. (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: Alarm, Control, Off.
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
02 DEVIATION ALARM
VALUE ? 5ºF
LOOP PROCESS UNITS
ALARM SETPOINT STATUS OUT%
07 HI DEVIATION
ALARM TYPE ? OFF
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