Varifan DIP-1C, Installation & User Manual

Page: 28 / 42

DIP-1C USER’S GUIDE
Section C-28 DIP-1C
Inlet Calibration (POS 8)
Inlet Set Low Limit
This parameter is used to set the low potentiometer limit for inlet calibration.
This will effectively define the lowest possible value for the inlet’s
potentiometer. To obtain this value, close the inlet completely using
Manual
Override . Once the inlet is completely closed, press the SET/CLR button
on the current parameter. At this point, the LED display will change to
SAVED
, if the value was correctly saved, or
ERR
, if the potentiometer
reading is not valid. In the last case, calibration must be performed once the
situation is corrected.
Inlet Set High Limit HI
This parameter is used to set the high potentiometer limit for inlet
calibration. This will effectively define the highest possible value for the
inlet’s potentiometer. To obtain this value, open the inlet completely using
Manual Override . Once the inlet is completely open, press the SET/CLR
button on the current parameter. At this point, the LED display will change
to
SAVED
, if the value was correctly saved, or
ERR
, if the potentiometer
reading is not valid. In the last case, calibration must be performed once the
situation is corrected.
Inlet Precision (POS 9)
Inlet Precision
This parameter is used to adjust the precision of the inlet. If the inlet moves
too often, increase this setting. When this is done, the inlet will then require
a greater difference between its actual position and the requested one
before moving. The precision of the inlet is adjusted in 1% increments from
1% to 20%.
Inlet Max Run Time RUN T
This parameter is used to set the maximum run time of the inlet within a ten-
minute period. When an inlet has moved for a time greater than the value of
this parameter within a ten-minute period, the module will not activate the
open or close relays until the inlet has had time to cool down. This value
should be set according to the manufacturer’s specifications. Setting this
value to OFF will deactivate the module cool down function. This parameter
is adjusted in 1-minute increments from 1 minute to 9 minutes, OFF.
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