Field Wiring Connections - Allen-Bradley 1769-IQ32 Installation Instructions Manual

8. Connect the modules together by locking (fully left) the bus levers on the
replacement module and the right-side adjacent module.
9. Replace the mounting screws (or snap the module onto the DIN rail).

Field Wiring Connections

Grounding the Module
This product is intended to be mounted to a well-grounded mounting surface such
as a metal panel. Additional grounding connections from the module's mounting
tabs or DIN rail (if used), are not required unless the mounting surface cannot be
grounded. Refer to Industrial Automation Wiring and Grounding Guidelines,
Allen-Bradley publication 1770-4.1, for additional information.
Input Wiring
Basic wiring of input devices
ATTENTION
!
(1)
Sinking/Sourcing Inputs - Sourcing/sinking describes the current flow between the I/O module and the field device.
Sourcing I/O circuits supply (source) current to sinking field devices. Sinking I/O circuits are driven by a current sourcing
field device. Field devices connected to the negative side (DC Common) of the field power supply are sinking field devices.
Field devices connected to the positive side (+V) of the field supply are sourcing field devices. Europe: DC sinking input and
sourcing output module circuits are the commonly used options.
Compact 32-point 24V dc Sink/Source Input Module
(1)
to the 1769-IQ32 is shown below.
– Miswiring of the module to an AC power source will damage
the module.
– Be careful when stripping wires. Wire fragments that fall into
a module could cause damage at power up. Once wiring is
complete, ensure the module is free of all metal fragments.
Publication 1769-IN032A-EN-P - April 2003
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