8-4
Chapter 8 - Module Replacement
Main Intelligence Module ReplacementMain Intelligence Module Replacement
Main Intelligence Module ReplacementMain Intelligence Module Replacement
Main Intelligence Module Replacement
1. Remove the grill cover from the top level of the Power Array.
The intelligence module resides under the redundant intelligence
module in the upper right corner of the frame.
Note: If a functioning RIM is installed, it will provide limited
control of the Symmetra
TM
until the replacement MIM is installed.
If a functioning RIM is not installed, either the Symmetra
TM
must
be placed in manual bypass mode or the load equipment must be
switched off. To place the Symmetra
TM
in manual bypass, switch
the maintenance bypass switch to the on position.
Important: When the Symmetra
TM
is in bypass mode, the load
equipment is unprotected from power failure.
2. Use a flathead screwdriver to release the flip latch.
3. Unscrew and release the retaining screws.
4. Slide the MIM out of the frame.
Installing the Replacement Main Intelligence
Module
Refer to Chapter 5 for the MIM installation procedure.
Note: If Symmetra
TM
was placed in manual bypass in step 1 above,
return to normal operation by switching the maintenance bypass
switch back to the off position.
Replacement MIM Verification
From the startup screen, press any key to open the top level menu
screen. Follow the sequence in figure 8-10 to ensure that the
replacement MIM is functioning properly. (Status: On & OK).
Fig 8-10 Intelligence Module Verification
Redundant Intelligence ModuleRedundant Intelligence Module
Redundant Intelligence ModuleRedundant Intelligence Module
Redundant Intelligence Module
ReplacementReplacement
ReplacementReplacement
Replacement
1. Remove the grill cover from the top level of the Power Array.
The redundant intelligence module resides above the intelligence
module in the upper right corner of the frame.
Note. A RIM can only be replaced if a functioning MIM is in-
stalled or the load equipment is switched off.
2. Use a flathead screwdriver to release the flip latch.
3. Unscrew and release the retaining screws.
4. Slide the RIM out of the frame.
Installing the Replacement Redundant
Intelligence Module
Refer to Chapter 5 for the RIM installation procedure.
Note: A RIM alone is not adequate to restart the Symmetra
TM
.
Make sure a functioning MIM is installed.
Replacement Redundant Intelligene Module
Verification
From the startup screen, press any key to open the top level menu
screen. Follow the sequence in figure 8-11 to ensure that the
replacement RIM is functioning properly. (Status: On & OK).
Fig 8-11 Redundant Intelligence Module Verification
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