Rockwell Automation 1771-OWNA Contact Output Module Installation Instructions - Manual (Page 4)

Contact Output Module 4
Publication 1771-IN038B-EN-P - August 2002
!
ATTENTION
Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic
discharge, which can cause internal damage and
affect normal operation. Follow these guidelines
when you handle this equipment:
•
Touch a grounded object to discharge potential
static.
•
Wear an approved grounding wriststrap.
•
Do not touch connectors or pins on component
boards.
•
Do not touch circuit components inside the
equipment.
•
If available, use a static–safe workstation.
•
When not in use, keep modules in appropriate
static–safe packaging.
This module must be used in a 1771-A1B through -A4B or later I/O
chassis.This module does not contain surge limiting circuitry. Use
this module for switching resistive loads only. It is not
recommended for inductive or capacitive loads.
The outputs are arranged in 4 groups of 8, each group with its own
common. The module can simultaneously switch all 32 outputs to
separate loads, with a maximum of 12A per module. Each output
can conduct a maximum load of 1.0A continuously at 30W at 45
o C,
and 15W at 60 o C maximum. Ac loads switched by the modules
should have a power factor (PF) of 1.0.
Maximum interconnect cable length for this module is 1000 ft.
(304.8 meters).
The controller or I/O chassis power supply, connected through the
backplane of the I/O chassis, powers the logic circuitry of the contact
output modules. This supply also provides the necessary power to
energize the coils of the module relays. The maximum current drawn
from this supply when all coils are energized is 2.5A. Nominal
backplane current is 1.8A.
PreĆinstallation
Considerations
Power Supply
Requirements