CONTREX MLP-Trim - Manual (Page 43)

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KEYPAD OPERATION
The front panel of the MLP–Trim is an easy to use keypad that gives you direct access
to the Parameters (Control Parameters and Monitor Parameters) by entering the
Parameter Code. You can also use the keypad to change the value of a Control
Parameter. The keypad has keys for Code Select, Enter, Clear, and Scroll Up/Down.
It also has numeric keys and two dedicated keys: Setpoint and Tach. The LED display
is the above the keys. Figure 3-1 displays the location of the keys and LED display on
the keypad. Table 3-1 demonstrates basic keypad entry.
The keypad functions as follows:
Code Select Key Press this key prior to entering a Parameter Code (either a
Control Parameter or a Monitor Parameter).
Numeric Keys Use the numeric keys to enter a Parameter Code for either a
Control Parameter (CP) or a Monitor Parameter (MP) or to
enter a value for a Control Parameter. Use the Enter key after
each entry. Use the Clear key to delete your entry.
Dedicated Keys The Setpoint key and the Tach key are shortcut keys. The
Setpoint key accesses the active setpoint variable directly and
the Tach key accesses the tach variable directly (rather than
manually entering the Code Parameter).
Scroll Up/Down Keys These keys will change the active setpoint value, even if that
setpoint is not displayed in the LED Display. Each time you
press the scroll up key, the active setpoint will increase by one
increment. Each time you press the scroll down key, the active
setpoint value will decrease by one increment. It will also
automatically scroll through the increments or decrements if
you hold the key down.
LED Display The two digit Parameter Code is displayed on the left LED
Display. The Parameter Code's value is displayed on the right
LED display. This value can be up to four digits.