Digital Inputs And Outputs - Emerson Epsilon Eb Series Reference Manual

Epsilon Eb and E Series EN Drives Reference Manual
Example:
You could use the Analog Outputs to accurately measure velocity overshoot. For example, to
measure a target velocity of 2000 RPM at a resolution of ±10 V = ±200 RPM do the
following.
1. Selected Velocity Feedback for the Analog Output Source
2. Set the Analog Output Offset to 2000 RPM
3. Set the Analog Output Scale to 20 RPM/VOLT
This will provide an active range from ±10 Volts to represent 1800 to 2200 RPM. Therefore,
the measured resolution has been increased.

Digital Inputs and Outputs

External control capability is provided through the use of input and output functions. These
functions may be assigned to any input or output line. After they are assigned to lines, external
controllers such as a PLC or multi-axis controllers, may be used to affect or monitor the drive
operation.
Drives are equipped with five optically isolated input lines (one dedicated to a Drive Enable
function) and three optically isolated output lines. All inputs and outputs are compatible with
sourcing signals (active = + voltage) and are designed to operate from a +10 to 30 VDC. You
are responsible for limiting the output current to less than 150 mA for each digital output.
These input and output lines can be accessed through the removable 10-pin I/O Connector,
and through the 44-pin Command Connector.
Note
See "Input/Output and Drive Enable Wiring".
Input Function Active State
The active state of an input function can be programmed to be "Active Off" or "Active On"
using PowerTools. Making an input function "Active On" means that it will be active when
+10 to 30 VDC is applied to the input line it is assigned to and is inactive when no voltage is
applied to the line. Making an input function "Active Off" means that it will be active when
no voltage is applied to the input line and inactive while +10 to 30 VDC is being applied.
You can also make an input function "Always Active", which means that it is active
regardless of whether or not it is assigned to an input line and, if you assign it to an input line,
it will be active whether or not voltage is applied to that line. This is useful for testing the
drive operation before I/O wiring is complete.
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