Chromalox MaxPac, Руководство пользователя, Страница: 22 / 44

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The method of setting the MaxPac for desired mode of operation is as follows:
Input Command Selection
The unit can be set to drive its output in response to the following command inputs:
•
Analog potentiometer
• Analog inputs: 4-20mA (or 0-20mA), 0-5Vdc (or 1-5Vdc), 0-10V
• Digital ON/OFF inputs: AC ON/OFF, DC ON/OFF
To select between any of these inputs, set the MaxPac as indicated in the table below:
Input Command Select Method of Selection
Potentiometer Select MANUAL mode by leaving no connection
between J2.4 & J2.5. The rotary switch selection at
SW1 is ignored when in MANUAL mode
OR
Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 1
ON / OFF (will turn output in if either AC or DC ON/
OFF inputs are energized) Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 0
0-10Vdc Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 2
0-5Vdc Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 3
1-5Vdc Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 4
0-20mA Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 5
4-20mA Select AUTO mode by jumpering J2.4 & J2.5, and
then set rotary switch at SW1 to position 6
Note: SW1 position 7 is reserved for factory use, and should not be used
Phase Selection and Firing Mode
SW3 selects the phase selection and firing method of the MaxPac.
Normally, this switch should be left in its factory-installed position. If it should become neces-
sary to change it, set only accordance to the table below. Choosing a setting that does not
match your unit’s number of phases and legs will result in the unit entering alarm mode and
turning the output off after an initial attempt to turn outputs on.