Watlow Series 920 Microprocessor-Based Ramping Control - Manual (Page 57)

Alarm Limits
You can set up alarm bands with the two available alarms. Each of the two
alarms has a high and a low limit point, indicated by the or designation.
You specify in the Operating Data where you want Al Al H, and
The first two examples below show one band inside the other. However, you
could use Al L-Al H as a band below both set point, and
Temp
New SP
Temp
Actual
Time
AIL
New SF
Figure 34
Alarm limits for
Alarms 1 and 2
with “process”
type alarm.
=P,
Figure 35
Alarm limits
Alarms 1 and 2
with “deviation”
type alarm.
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