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INPUT/OUTPUT INTERFACE
OVERVIEW
The PCM-5 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.
The user is responsible for limiting the output current to less than or equal to 200 mA.
Adding the PCM-5 module will double the I/O capabilities of the standard digital drive. The
number of input lines are increased from 8 to 16 and the number of output lines is increased from
4 to 8.
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 (see Figure 69).
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