Emerson Epsilon Eb Series Reference Manual page 70

Input Line Debounce Time
You can program a "Debounce Time" which means the line will need to be active for at least
the debounce time before it is recognized. This feature helps prevent false triggering in
applications with high ambient noise.
Figure 38: Input Line Diagram
Output Line Active State
The default active state of an output line is "Active On". This means that the output line will
supply a voltage when the result of the OR'ed output function(s) assigned to that output line
is activated by the drive.
Making an output line "Active Off" means that the line will be "Off" (not conducting) when
the result of the OR'ed output function(s) assigned to that output line is active, and will supply
a voltage when the output function is inactive.
Input Functions
Travel Limit + or -
The + and - Travel Limit input functions will stop motion in the direction indicated by the
input function using the Travel Limit Deceleration rate. This feature is active in all modes.
When an axis is stopped by a Travel Limit function, it will maintain position until it receives
a command that moves it in the opposite direction of the active Travel Limit.
For example, the + Travel Limit will stop motion only if the motor is moving + but allows -
motion to move off the limit switch. Conversely, the - Travel Limit will stop motion only if
the motor is moving - but allows + motion to move off the limit switch.
If both input functions are active at the same time, no motion in either direction will be
possible until at least one of the inputs is released.
When either + or - Travel Limit input function is activated, a fault will be logged into the Fault
Log, and the drive will display an "L" on the LED diagnostics display on the front of the
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Operational Overview
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