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Programming the time set point counter from the front panel, enter the
Configuration menu and press the
or
arrow buttons until the setting 001 is
displayed:
Press the
YES
button. The first digit will flash. Use the
or
arrow buttons to
scroll through the digits 0 – 9. Use the
or
buttons to scroll between the
digits. The currently active digit will flash. Press
YES
after you have entered all
digits.
For programming from a PC just type the output timer value on the “Enter:” line
as follows:
Enter:1/15
This will set the delay to pickup output 1 by 15 seconds. Consult the setting
sheets to program the pickup timers for OUT2, OUT3, OUT4, OUT5, OUT6,
OUT7, & OUT8.
4.9.8 Setting Output Invert
The output invert enhances the flexibility of the programmable logic by providing
an overall output inversion for an entire logic equation. This is particularly useful
for fail safe operation of the controller. Fail safe operation is highly recommended
as it allows your cooling system to be activated should the TTC-1000 become
de-energized or a device or temperature probe alarm is detected. Fail safe
operation is achieved by ensuring the output relay drops out when the necessary
set points are satisfied to command a stage of cooling. In fail safe it is vital to
remember to wire the contactor controlling the fan bank between the common
and normally closed contact.
Programming from the front panel, enter the Configuration menu and press the
or
arrow button until the setting 025 is displayed:
Press the
YES
button. The first character will flash. Use the
or
arrow buttons
to scroll between OFF and ON. Selecting ON will invoke the overall invert
function. Press
YES
when you have made the correct selection.
PRGM SETTING 001
OUT1PUTMR=000sec
PRGM SETTING 025
I N V E R T O U T 1 = O F F
Содержание TTC-1000
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