Vertiv
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+24 VDC Power System User Manual (Section 6013)
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Rev. G
135
CAUTION!
When performing any step in this procedure that requires removal or installation of
hardware, use caution to ensure no hardware is dropped and left inside the cabinet; otherwise service
interruption or equipment damage may occur.
WARNING!
Circuit cards used in this equipment contain static-sensitive devices. Read the Static
Warning page at the front of this document before performing the following procedure.
NOTE!
When performing any step in this procedure that requires removal of existing hardware, retain all
hardware for use in subsequent steps.
NOTE!
A flat-blade screwdriver, No. 2 Phillips screwdriver, and 5/16” nut driver are required to perform
all the following procedures.
NOTE!
as this procedure is performed.
Preparation
1.
Observe the admonishments presented at the beginning of this section, and those encountered in this
procedure.
2.
Performing this procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard
any future alarms associated with this system.
Recording Required MCA Settings
Replacing the MCA Main Controller circuit card WILL result in all MCA settings being returned to their factory
default values.
1.
If you are replacing the MCA Main Controller circuit card, in
, either manually record
all existing MCA settings or record the required settings for your site from your company's DC Plant Set
Points specifications (standards).
NOTE!
The MCA configuration can be saved by downloading the configuration using the WinLink
software program (if available).