Watlow Series F4P - Manual (Page 72)

7 . 1 4 ■ F e a t u r e s Wa t l o w S e r i e s F 4 P
Digital Set Points
Up to four nameable digital set points can be configured
to control the Series F4P outputs. Each of the Series
F4P’s four digital inputs can be configured to select a dif-
ferent set point value.
When the digital set point function is selected in the Dig-
ital Input Menu, an adjustable digital set point value pa-
rameter (with the default name of “Dig. SPX”) will be
displayed in the Operation Menu > Control Set Points.
When the selected digital input goes to its true condition
(which is determined on the Setup Page) the Series F4P
will control to the enabled digital set point value. The en-
abled digital set point value and name will replace the lo-
cal set point displayed on the Main Page. This set point
is not adjustable from the Main Page.
Only one digital set point can be enabled at a time. If
more than one digital input is configured as a digital set
point, priority will be based on the order scanned by the
Series F4P.
The enabled digital set point remains enabled for as long
as the digital input is in its true condition. When no digi-
tal set points are enabled, control in the closed-loop mode
will revert to the local set point value.
Location in software: Setup Page > Digital Set Point x (1
to 4).
(Digital set points are set or changed in the Operating
Page.)
Figure 7.14 — Digital Set Points System Example.
25 C F 4
1
2
1B 1B
1A 1A
A
M
/
80 C
150 C
250 C