Graco Therm-O-Flow Plus, Инструкция по эксплуатации

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Advanced Pendant Control
7 Day Timer Functions Setup
The 7 day timer is for starting and stopping of the heat
zones automatically each day of the week. The typical
use of the 7 day timer is to start the heat zones of a
Therm-O-Flow Plus hot melt system before the system
is to be used for production, and stopping of all heat
zones automatically at a specified time each day of the
week. The typical heat up time from ambient tempera-
ture to full melting temperature of all heat zones of a
55 gal. hot melt unloader system is approximately 20
to 40 minutes depending on the temperature settings.
The 7 DAY TIMER can preheat the system and have it
ready at production temperature before production is
to start. The 7 day timer can also shut of f all heat
zones at specific times of the day. The 7 day timer
can be set for 4 different work weeks, each day of the
week with its own separate start and stop time.
The four different weeks can be used to preset days
and times for holiday weeks or different shifts.
Starting of the heat zones is done by placing the zones
in the RUN mode. Stopping the zones from heating is
done by placing the zones in the STOP mode. The
Therm-O-Flow Plus unloader unit is equipped with
serial communications, accessed by the pendant.
Through this RS485 serial communication connection
to the temperature controllers of the unloader, the
pendant can manage the RUN and STOP modes
automatically.
NOTE: For the 7 day timer to work properly, the
HEAT OFF/ON switch (on the Therm-O-Flow Plus
control box) must be left in the ON position. This
allows power to all heat zones and allows the tempera-
ture controllers to manage the heat to the zones. If the
switch is left in the OFF position, no electrical power
will be supplied to the heat zone heating elements,
even though the temperature control is in the RUN
mode. For daily operation with the 7 day timer, refer to
page 24.
The 7 day timer works from a 24 hour clock. Shown
below is an example of typical settings of the 7 day
time as viewed in the VIEW – TIMER SETTINGS
menu of the pendant.
T h u r > A C T I V E < W o r k
^ S t a r t 0 7 : 0 0 W e e k
^ S t o p 1 7 : 0 0 0 1
D A Y E X I T W K +
F1 F2 F3 F4 F5
The sample screen shows the Active work week is
Week 1, the day viewed on the display is Thursday,
the Start time is 0700 hrs (7:00 am) and the Stop time
is 1700 hrs (5:00 pm). The F1, F2, F3, F4 and F5
represent the first row of keys on the pendant keypad.
Pressing the F1 key accesses the DAY command from
the last row of the display. F1 will increase the day
from THUR to FRI and so on as the F1 key is pressed.
The F2 key is not functional with this screen. The F3
key is associated with the EXIT command. The EXIT
command exits (returns) back to the previous screen.
The F4 key is also not functional and the F5 key
increases the work week to the next week, work week
2. When Work Week 4 is reached, the next press of
F5 will return the work week back to Work Week 1,
thus toggling the work week through 4 weeks. Only
one Work Week can be active at a time. When enter-
ing the VIEW–TIMER SETTINGS screen, the current
day will show corresponding to the Active work week.