Watlow Series 96 - Manual (Page 23)

Wa t l o w S e r i e s 9 6 F e a t u r e s ■ 5 . 4
Range Low and Range High
The controller constrains the set point to a value
between range high and range low. Range high can-
not be set higher than the sensor high limit or lower
than range low. Range low cannot be set lower than
the sensor low limit or higher than range high.
Use Set Point 1 [SP1`] (Home Page), Range Low 1
[rL1`] and Range High 1 [rh1`] (Input 1 Menu) to
select or view values for the corresponding Input 1
parameters.
Figure 5.4a Sensor ranges.
Set Point Range (must be between Range High and Range Low)
Low Limit of selected Sensor Range
High Limit of selected Sensor Range
Temperature
Range High Range (between High Limit of Sensor and Range Low)
Range Low Range (between Low Limit of Sensor and Range High)
Range Low
Range High
Event Input
With an event input an operator can perform certain
operations on a system by opening or closing a
switch or applying a dc logic signal to the controller.
This feature can add convenience, safety or security
to a system.
Use Event Input Status [E`St] (Monitor Menu) to
read the state of the event input parameter.
Use Event Function [E`Fn] (Input 2 Menu) to select
how an event will affect the system.
[nonE] Events will not affect the system.
[``SP] Switch to the event set point.
[AOFF] Turn off control outputs and disable alarms.
[COFF] Turn off control outputs.
[`LOC] Lock out key board.
[A-M] Switch to manual mode.**
[tunE] Initiate an auto-tune.
[``AL] Clear an alarm.
[ SLOC] Lock out everything except primary set point
(auto or manual). If selected and if a profile is
not running (non-ramping mode) will lock the
user out of all parameters except set point and
event outputs.
[`we] Wait-for event input*
[paus] Pause*
[fil1] Profile 1*
[fil2] Profile 2*
[hold] Hold*
[Absp] abort set point*
Use Event Condition [E`cn] (Input 2 Menu) to
select what condition will trigger an event.
[``Lo] Low generates an event while the voltage is
low (switch closed).
[``hi] High generates an event while the voltage is
high (switch open).
[riSE] Rise changes the event state when the volt-
age changes from low to high.
[FALL] Fall changes the event state when the volt-
age changes from high to low.
Figure 5.4b Event inputs.
Time
V
o
ltage
Low Event
(switch closed)
High Event
(switch open)
Rise Event Fall Event
*These parameters are added if the ramping software option has been ordered (96 _ _ - _ _ _ _ - AA _ _ ) .
**These parameters are removed if the ramping software option has been ordered (96 _ _ - _ _ _ _ - AA _ _ ) .