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Electrostatic Damage
Power Requirements
25
Install and Wire the Module
This chapter tells you how to:
• avoid electrostatic damage.
• determine the module's chassis power requirement.
• install the module.
• wire signal cables to the module's terminal block.
• install the ferrite collar.
Electrostatic discharge can damage semiconductor devices inside this
module if you touch backplane connector pins. Guard against
electrostatic damage by observing the following precautions.
Electrostatic discharge can degrade performance or cause
ATTENTION
permanent damage. Handle the module as stated below.
• Touch a grounded object to rid yourself of charge before
handling the module.
• Wear an approved wrist strap when handling the module.
• Handle the module from the front, away from the backplane
connector. Do not touch backplane connector pins.
• Keep the module in its static-shield bag when not in use.
The module receives its power through the SLC 500 chassis backplane
from the fixed or modular +5V dc/+24V dc chassis power supply. The
maximum current drawn by the module is shown in this table.
Maximum Current
5V dc
24V dc
0.11 A
0.085 A
When using the module in a modular system, add the values shown
above to the requirements of all other modules in the SLC chassis to
prevent overloading the chassis power supply.
When using the module in a fixed controller, be sure not to exceed the
power supply rating for the pair of modules in the two slot I/O chassis.
Chapter
Publication 1746-UM614B-EN-P - September 2007
3
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