A3sd] [hys3, Setup-output, Alarm 3 side – Watlow Series 988 User Manual
Page 54: Hysteresis 3
4.26
WATLOW Series 988 User’s Manual
Setup Menus, Chapter 4
Setup-Output
Alarm 3 Side
Select what triggers alarm 3.
•
[both] triggers an alarm when the signal
≤ [A3LO] or ≥ [A3HI].
•
[HiGH] triggers an alarm when the signal
≥ [A3HI].
•
[LOW] triggers an alarm when the signal
≤ [A3LO].
[A3Sd] This prompt appears only on controllers equipped with output 3
hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or
98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _) and with
[`Ot3]
set to
[`AL3] or [AL3n].
Default
↓
[both]
[HiGH]
[LOW]
[A3Sd]
[A3Sd]
[A3Sd]
Hysteresis 3
Select the switching hysteresis for alarm 3. This determines the change
in temperature or process units needed to turn the output from off to on.
• If
[`AL3] is set to [rAtE] settings for [HYS3] will be in degrees per
minute or units per minute.
• If the input referenced by
[`AL3] is set to [`r†d] the range is affected as
listed below.
[HYS3] This prompt appears only on controllers equipped with output 3
hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or
98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _).
If
Default
↓
↓
[``°F]
[```1] … [```3] … [`999]
[`C_F]
[HYS3]
[HYS3]
[HYS3]
(Global Menu)
[``°F]
&
[`r†d]
[``)1] … [``#0] … [`9(9]
[`C_F]
Input 1 or 2
[HYS3]
[HYS3]
[HYS3]
(Global Menu)
(see note above)
[``°C]
[```1] … [```2] … [`555]
[`C_F]
[HYS3]
[HYS3]
[HYS3]
(Global Menu)
[``°C]
&
[`r†d]
[``)1] … [``@0] … [`5%5]
[`C_F]
Input 1 or 2
[HYS3]
[HYS3]
[HYS3]
(Global Menu)
(see note above)
[```1] … [```3] … [`999]
units
a process input
[HYS3]
[HYS3]
[HYS3]
is selected
˜
NOTE:
See Chapter 7 for
more information
on alarms.
[A3Sd]
[HYS3]