Check External 24Vdc Wiring Before Hot Swapping - Automation Direct T1K-MODBUS-M User Manual

A–2
I/O Module Hot Swap
T1K–MODBUS I/O Module Hot Swap Feature
Check External
24VDC Wiring
Before Hot
Swapping!
The "Hot Swap" feature allows Terminator I/O modules to be replaced with
Terminator I/O system power ON. Be careful not to touch the terminals with your
hands or any conductive material to avoid the risk of personal injury or equipment
damaged. Always remove power if it is equally convenient to do so.
WARNING: Only authorized personnel fully familiar with all aspects of the
application should replace an I/O module with system power ON.
The following module types can be "Hot Swapped".
Module
Power Supply
Base Controller
I/O Modules (discrete / analog)
Before "Hot Swapping" an analog I/O module or a DC output module in a
Terminator I/O system, make sure that each of the analog I/O and DC output
module's 24VDC and 0VDC base terminals are wired directly to the external
power supply individually (see diagram below). If the external 24VDC / 0VDC is
jumpered from base to base in a daisy chain fashion, and an analog I/O or DC output
module is removed from its base, the risk of disconnecting the external 24VDC to the
subsequent I/O modules exists.
No
No
Yes
Do not jumper
modules together
creating 24VDC
bus for Hot Swap.
Wire each analog I/O and DC
output module independently
to the external power supply.