Filter
Top Products
WATLOW Series 988 User’s Manual 4.23
Setup Menus, Chapter 4
Setup-Output
Alarm 2
Select the alarm type for alarm 2. Select the trigger points for the alarm
with the [A2LO] and [A2HI] settings in the System Menu [`SYS].
• [`Pr1] uses the process signal from input 1. Changing the set point
does not change the alarm response.
• [`dE1] uses a deviation from the input 1 signal. Changing the set point
changes the alarm response.
• [`Pr2] uses the process signal from input 2. This choice does not appear
if the controller is not equipped with input 2 hardware or if [`In2] is set
to [``no] or [`Ei2].
• [`dE2] uses a deviation from the input 2 signal. This prompt does not
appear if the controller is not equipped with input 2 hardware or if
[`In2] is set to [``no] or [`Ei2].
• [rAtE] uses the rate of change at input 1 in degrees per minute.
[`AL2] This prompt appears only on controllers equipped with output 2
hardware and with [`Ot2] set to [`AL2] or [AL2n].
Default
↓
[`Pr1] [`de1] [`Pr2] [`de2] [rAtE] [``no]
[`AL2] [`AL2] [`AL2] [`AL2] [`AL2] [`AL2]
Alarm 2 Side
Select what triggers alarm 2.
• [both] triggers an alarm when the signal ≤ [A2LO] or ≥ [A2HI].
• [HigH] triggers an alarm when the signal ≥ [A2HI].
• [LoW] triggers an alarm when the signal ≤ [A2LO].
[A2Sd] This prompt appears only on controllers equipped with output 2
hardware and with [`Ot2] set to [`AL2] or [AL2n].
Default
↓
[both] [HigH] [Low]
[A2Sd] [A2Sd] [A2Sd]
˜
NOTE:
See Chapter 7 for
more information
on alarms.
[`AL2]
[A2Sd]