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4.30 WATLOW Series 988 User’s Manual
Setup Menus, Chapter 4
Setup-Output
Hysteresis 4
Select the switching hysteresis for alarm 4. This determines the change
in temperature or process units needed to turn the output from off to on.
• If [`AL4] is set to [rAtE] settings for [HYS4] will be in degrees per
minute or units per minute.
• If the input referenced by [`AL4] is set to [`r†d] the range is affected as
listed below.
[HYS4] This prompt appears only on controllers equipped with output 4
hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ ,
98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _).
If Default
↓↓
[``°F] [```1] … [```3] … [`999]
[`C_F] [HYS4] [HYS4] [HYS4]
(Global Menu)
[``°F]
&
[`r†d] [``)1] … [``#0] … [`9(9]
[`C_F]
Input 1 or 2
[HYS4] [HYS4] [HYS4]
(Global Menu) (see note above)
[``°C] [```1] … [```2] … [`555]
[`C_F] [HYS4] [HYS4] [HYS4]
(Global Menu)
[``°C]
&
[`r†d] [``)1] … [``@0] … [`5%5]
[`C_F]
Input 1 or 2
[HYS4] [HYS4] [HYS4]
(Global Menu) (see note above)
[```1] … [```3] … [`999]
units
a process input
[HYS4] [HYS4] [HYS4]
is selected
Latching 4
Select whether alarm 4 will be latching or non-latching. A latching
alarm [`LAT] must be turned off manually. A non-latching alarm [`nLA]
turns off when an alarm condition no longer exists.
[LAt4] This prompt appears only on controllers equipped with output 4
hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_J_ _ or
98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _). and with [`Ot4] set
to [`AL4] or [AL4n].
Default
↓
[`nLA] [`LAt]
[LAt4] [LAt4]
˜
NOTE:
See Chapter 7 for
more information
on alarms.
[LAt4]
[HYS4]
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