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4.22 WATLOW Series 988 User’s Manual
Setup Menus, Chapter 4
Setup-Output
Hysteresis 2
Select the switching hysteresis for output 2. This determines the
change in temperature or process units needed to turn the output from off
to on.
• If [`AL2] is set to [rAtE] settings for [HYS2] will be in degrees per
minute or units per minute.
• If the input referenced by [`AL2] is set to [`r†d] the range is affected as
listed below.
[HYS2] This prompt appears only on controllers equipped with output 2
hardware and with the controller set up as an on/off controller ([Pb2A} =
[```0]), and with [`Ot2] not set to [``no]. This prompt does not appear
on controllers equipped with output 2 process hardware, ([`In2} = [sLid],
or if [ALg0} in the Global menu = [dUPL]).
If Default
↓ ↓
[``°F] [```1] … [```3] … [`999]
[`C_F] [HYS2] [HYS2] [HYS2]
(Global Menu)
[``°F]
&
[`r†d] [``)1] … [``#0] … [`9(9]
[`C_F]
Input 1 or 2
[HYS2] [HYS2] [HYS2]
(Global Menu) (see note above)
[``°C] [```1] … [```2] … [`555]
[`C_F] [HYS2][ HYS2] [HYS2]
(Global Menu)
[``°C]
&
[`r†d] [``)1] … [``@0] … [`5%5]
[`C_F]
Input 1 or 2
[HYS2] [HYS2] [HYS2]
(Global Menu) (see note above)
[```1] … [```3] … [`999]
units
a process input
[HYS2] [HYS2] [HYS2]
is selected
Set Point 2 Control
Select a second set point.
• [``Pr] enables a set point independent from the Set Point 1 [`SP1]
value.
• [``dE] enables a set point at a deviation from the Set Point 1 [`SP1]
value.
[Prc1] This prompt appears only if output 2 hardware is present and is
equal to the output 1 setting.
Default
↓
[``Pr] [``dE]
[SPc2] [SPc2]
[HYS2]
[SP2c]