AMETEK 2120 PLC Interface Module - Manual (Page 10)

6 Installation and Programming Manual
Chapter 2: Hardware Overview
POSITION This position LED turns on when the Interface Module is showing position in the
large LED display.
RPM The RPM LED turns on when the Interface Module is showing RPM in the large
LED display.
UPR LIM The upper limit LED refl ects the state of the relay when the value programmed in
the Upper End Limit function is reached. The relay can be programmed to energize
or deenergize upon reaching the programmed overtravel position. (For more
information, see Upper End Limit in Section 4.3: Setup Function).
LWR LIM The lower limit LED refl ects the state of the relay when the value programmed in
the Lower End Limit function is reached. The relay can be programmed to
energize or deenergize upon reaching the programmed overtravel position. (For
more information, see Lower End Limit in Section 4.3: Setup Functions.)
AUX 1 For future expansion.
AUX 2 For future expansion.
AUX 3 The auxiliary LED is programmable and can be used with the Position Hold
function. When enabled, this LED indicates when the position is being held. (For
more information, see Position Hold and Auxiliary LED in Section 4.3: Setup
Functions.)
The function key is used to begin a process for programming a function. When
this key is pressed, the Interface Module prepares itself for the entry of a specifi c
function number.
The scroll key is used to scroll through the Interface Module’s list of function
numbers, as well as other lists. This key is also used to increment selected digits
shown on the Interface Module’s LED display.
The shift key is used to move to (select) a specifi c digit shown on the Interface
Module’s LED display from right to left.
The enter key is selected after a function number has been entered. This begins
the programming process for the selected function. The enter key is also used to
program a value in a function.
NOTE: For more information on how to use the programming keys, see Chapter 4: Programming
(F)