Vertiv
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+24 VDC Power System User Manual (Section 6013)
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Rev. G
129
SYSTEM TROUBLESHOOTING AND REPAIR
Contact Information
Refer to Section 4154 (provided with your customer documentation) for support contact information.
Admonishments
General Safety
DANGER!
SERVICE PERSONNEL MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose service personnel to hazards. These procedures
should be performed by qualified service personnel familiar with the hazards associated with this type of
equipment. These hazards may include shock, energy, and/or burns. To avoid these hazards:
a)
The tasks should be performed in the order indicated.
b)
Remove watches, rings, and other jewelry.
c)
Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage
or the expected voltage is present.
d)
Wear eye protection, and use recommended tools.
e)
Use insulated tools.
(To avoid danger to the installer or damage to the equipment, the tools used in this procedure
should have insulated grips. All exposed metal shafts, extensions, handles, etc. should be completely
insulated with a minimum of three half-lapped layers of electrical tape. Ensure that wrenches with
more than one working end have only one end exposed.)
Voltages
AC Input Voltages
DANGER!
This system operates from AC voltage capable of producing fatal electrical shock.
DC Input/Output Voltages
DANGER!
This system produces DC Power and may require battery to be connected to it. Although the
DC voltage is not hazardously high, the Rectifier Modules and/or battery can deliver large amounts of
current. Exercise extreme caution not to inadvertently contact or allow any tool to inadvertently contact
a battery terminal or exposed wire connected to a battery terminal. NEVER allow a metal object, such as
a tool, to contact more than one termination at a time, or to simultaneously contact a termination and a
grounded object. Even a momentary short circuit can cause explosion and injury.
CAUTION!
Performing the following procedures may interrupt power to the loads, if battery reserve is
not sufficient.
