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Input/Output Interface
OVERVIEW
The Drive is equipped with 8 inputs and 4 outputs which are optically isolated for +10 to +30
vdc operation. Each input and output has 2 screw terminals associated with it to provide for
either sinking or sourcing operation. The first 8 pairs of designated terminals are inputs and the
last 4 pairs of terminals are outputs. The outputs are capable of sinking or sourcing 200 mA. It
is the users responsibility to limit the output current to less than or equal to 200 mA.
These inputs and outputs allow for proper timing and coordination between the drive’s motion
and other machine control functions. The inputs and outputs typically are connected to the
machine’s programmable logic controller (PLC) or relay logic system. These inputs and outputs
are also connected to limit switches, and/or switches and indicators on an operator’s control
panel.
A large number of input/output control functions are provided. The functions used are assigned
to any of the input/output lines. This is accomplished through either serial interface commands
or by using the PCX software provided with the drive. Inputs may be programmed as normally
off or normally on. In addition, more than one function may be assigned to the same input line.
Each Drive comes from the factory with the inputs and outputs predefined for frequently used
I/O configurations.
Using the I/O inputs, specific pre-programmed index functions are addressed by coding the 0-31
index number in binary. Receiving the proper binary code prior to an Index Initiate determines
the required index. An output function can be programmed on one of the output lines to indicate
when the move is completed. Other functions such as Jog and Home have discrete inputs
assigned which, when activated, cause that function to execute. The input lines can be used to
execute functions which can be activated by the user through switches, sensors, or possibly, a
PLC’s output. This provides an interface between the drive and other parts of a machine or
system.
Figure 84
I/O Mode
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