ControlLogix Voltage/Current Input Module 3
Publication 1756-IN040C-EN-P - October 2000
Prevent Electrostatic Discharge
Removal and Insertion Under Power (RIUP)
ATTENTION
!
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch backplane connector pins.
Follow these guidelines when you handle the module:
• Touch a grounded object to discharge
static potential.
• Wear an approved wrist-strap grounding device.
• Do not touch the backplane connector or connector
pins.
• Do not touch circuit components inside the module.
• If available, use a static-safe work station.
• When not in use, keep the module in its static-shield
box.
WARNING
!
This module is designed so you can remove and insert it
under backplane power and field-side power. When you
remove or insert a module while field-side power is
applied, you may cause an electrical arc. An electrical
arc can cause personal injury or property damage
because it may:
• send an erroneous signal to your system’s field
devices, causing unintended machine motion or loss
of process control.
• cause an explosion in a hazardous environment.
Repeated electrical arcing causes excessive wear to
contacts on both the module and its mating connector.
Worn contacts may create electrical resistance.
When you insert or remove the module while backplane
power is on, or you connect or disconnect the RTB with
field-side power applied, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is
non-hazardous before proceeding.
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