Cognex In-Sight 1400, Installation And Reference Manual

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In-Sight
33
Appendix C
C.1 Wiring Inputs and Outputs
The following figures show basic wiring for some of the more common configurations.
Notes:
• A connection to both the ground pin labeled - 24VDC, and the power pin l 24
VDC are required to supply the In-Sight sensor with power.
• OUT COMMON is only for General Purpose Outputs (not High Speed Outputs).
• High Speed Outputs must be powered by connecting to the pin l24VDC or by
a separate power supply that is grounded to the pin labeled -24VDC.
• Unless necessary, power to your device(s) should not be provided from the I/O
module terminal block pin l24V. If power is provided from these pins, General
Purpose Inputs and Outputs will no longer be optically isolated. Use a separate power
supply to ensure that inputs/outputs are optically isolated.
• All General Purpose Inputs share a common connection (IN COMMON). All General
Purpose Outputs share a separate common connection (OUT COMMON). Therefore,
all input devices must be current sinking OR sourcing, and all output devices must be
sinking OR sourcing.
• Do not connect a relay to an input configured as a Job Load Switch. A signal from a
relay fluctuates enough (from contact bounce) that multiple job loads will be
recognized.
• High Speed Outputs are not optically isolated, and can only be connected so that the
1400 I/O Module sinks current.