SPX HPD Series, Instruction Manual

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6.5.7 Display Mode
1. Display Mode is active when the user exits Program
Mode or Setup Mode and no alarms are active
(unless MANUAL CYCLE was selected in Setup
Mode).
2. Display Mode is comprised of dryer status screens
and dryer display screens (described below). The
controller automatically alternates the display
between the Status Screens and selected Display
Screens .
3. The user can override the automatic screen scroll
by pressing to step through each of the Display
Screens shown on the next page. Automatic
scrolling will resume when is pressed or if
not depressed for 60 seconds.
4. The Energy Savings and Service Reminders
Display Screens (Filters, Desiccant, and Valves) are
alternated in sequence with the current dryer status
screen.
Service Due Messages
14. There are two service levels (normal and severe)
as described in Program Mode. Each service level
has preset time intervals for servicing the filters,
desiccant, and valves. Time continues to accumulate
as long as power is supplied to the controller, whether
the controller is switched on or off.
When a service time interval expires (see also 14.d
below), the controller operates as follows.
a. The service LED blinks and the appropriate
service message is shown on the text display.
i. When the service interval for filters has expired
(see also d below), the three filter LED’s also
blink.
b. The dryer continues to cycle normally. The LED’s
for the valve’s, pressure switches, and desiccant
towers are not used for service indication.
c. Press the Reset button to extinguish the service
LED and to clear the service message from the
text display.
d. If the dryer has 1 or 2 filter monitors, the timer
for filter service is disabled. When the filter
monitor(s) send an alarm signal (change filter)
to the controller, the controller displays the same
LED’s and messages it would if the timer for filter
service had expired.
15. Examples of the text display are shown on page 18
and below for each alarm and service reminder. The
second line of the alarm screens contains up to three
messages which are scrolled through, displaying
each one for 2 seconds.
SERVICE DUE MESSAGES
SERVICE DRYER
VALVES
SERVICE DRYER
DESICCANT
SERVICE DRYER
FILTERS