Wiring 3-11
IQ 2000/5000 Installation Manual
Digital Outputs
The general purpose outputs are referred to as O1 through O8 in program statements. The
outputs are optically isolated and operate on the same 24 volt supply used by the general
purpose inputs. These outputs are all capable of sinking 75 mA continuously, driven to less
than 1 volt. Outputs O6, O7, and O8 are defined respectively as Home Sequence Complete, In
Position, and Error outputs, however, these output functions may be disabled and the outputs
used as general purpose outputs. Optionally, Output O4 may be enabled as a Program Running
output, and Output O5 may be enabled as an At Home output.
Connecting Inputs and Outputs Together
A digital output from a PDM may be connected to an input on the same controller or another
controller. A single wire connection between the output pin and the input pin is all that is
required. If connecting I/O between controllers, the 24 VDC common (P1 pin 1) also needs to
be connected between each controller.
Multiple digital outputs may be wired together to form a wire OR connection. If any one of the
outputs turns on, the line is pulled low (on). This is useful for connecting the Error outputs (O8)
from each axis of a system to a host PLC or machine controller to indicate an error in any of the
axes.
Multiple digital inputs may be wired together. If the line is pulled low, all connected inputs will
turn on. This is useful for connecting an input on each axis of a system to an output from a host
PLC or machine controller to synchronize events.
!
WARNING: External circuitry must be used to ensure the state of
digital outputs in an emergency stop situation. The IQ 2000/5000
will
not
automatically turn outputs OFF.
TABLE 3.3 Digital Outputs and Assignable Functions
Connector Pin Signal Name Assignable Function
P2
General purpose
inputs and outputs
12 +24 VDC +24 VDC
11 Output 8 (O8) Error
10 Output 7 (O7) In Position
9 Output 6 (O6) Home Sequence Complete
8 Output 5 (O5) At Home
7 Output 4 (O4) Program Running
6 Output 3 (O3)
5 Output 2 (O2)
4 Output 1 (O1) P2
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