Triconex Trident, Planning And Installation Manual

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198 Replacing Modules
Trident Planning and Installation Guide
Replacing an I
⁄
O Module Without a Hot Spare
If the fault indicator of an I
⁄
O module is on, the diagnostics have detected a module
failure.
▼
To replace an I
⁄
O module:
1
If available, make a note of the diagnostic message, model, and serial numbers.
2
Before replacing an I
⁄
O module, observe the important instructions provided in
the section called “Guidelines for Replacing Modules” on page 195 .
3
Insert the replacement I
⁄
O module in the slot adjacent to the faulty module and
rotate the lock lever clockwise to draw the module into the baseplate.
Note When replacing a module, you must use a #2 flat-blade screwdriver to lock
or unlock the module. See the “Installing Modules” procedure on page 148 .
When the module is installed, the Fault indicator goes on while the diagnostics
are running. At the same time, the Point indicators go on briefly, go off, then
resume the normal state of blinking. The Pass Indicator should go on within
about one minute. If it does not, and the Fault light persists longer than five
minutes, check the diagnostic log to determine if there is a problem.
If the module is not properly seated, the Lock indicator stays on. The Active
indicator does not go on until the I
⁄
O module is properly seated and locked.
The Active indicator should go on within one to two minutes. Then the Active
indicator on the faulty module goes off. If the Active indicator on the newly
inserted module does not go on within five minutes, replace it with another
module.
!
CAUTION
Never remove the currently active module.
4
On the faulty I
⁄
O module, rotate the lock lever counter-clockwise until the
module ejects from the baseplate.
5
Contact the Triconex Customer Response Center to obtain a returned material
authorization (RMA) number.
6
Return the module to Triconex for repair.