Vertiv Liebert EXM External Battery Cabinet, Руководство пользователя

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Vertiv | Liebert
®
EXM
™
Battery Cabinet User Manual | 23
Matching Battery Cabinets—Optional
Although the individual battery cells are sealed (valve-regulated) and require only minimal
maintenance, the Battery Cabinets should be given a periodic inspection and electrical check.
Checks should be performed at least annually to ensure years of trouble-free service.
Voltage Records : With the Battery Cabinet DC circuit breaker closed and the connected UPS
operating, measure and record battery float voltage. With the DC circuit breaker open, measure
and record the nominal (open circuit) voltage. Both these measurements should be made across
the final positive and negative terminal lugs. Compare these values with those shown below. The
recorded nominal voltage should be no less than the value shown; while the recorded float
voltage should be within the range shown. If a discrepancy is found, contact Vertiv.
Power Connections: Check for corrosion and connection integrity. Inspect wiring for discolored or
cracked insulation. Clean and/or tighten as required. Refer to torque specifications in
Table 21 .
Battery Cell Terminals: Check for discoloration, corrosion and connection integrity. Clean and
tighten if necessary. Note that when installing a new battery, the initial torque value is 5 lb.-in.
more than the retorque value.
Table 21 shows battery retorque values. All batteries are supplied
with tab washers for easier connection to the Alber BDSUi
™
or other monitoring equipment.
If the system uses a different model battery, contact Vertiv for the required torque value.
To access battery cell terminals, disconnect the inter-tier cable and two shelf retaining screws.
Once disconnected, insulate (with protective boot or electrical tape) the cables to prevent
accidental shorts. The battery shelf can now be pulled out. Tighten each terminal connection to
the retorque value. When replacing a battery, the terminal connections must be cleaned and
tightened. Disconnect and insulate the cables connected to the battery. Secure each battery
shelf with retaining screws when maintenance is complete.
Table 7 Battery voltage, nominal and float
Number of Cells
Battery Voltage, VDC
Nominal/
Open Cell Float
144 288 324
WARNING
Risk of heavy unit tipping over while being moved. Can cause property damage, injury and
death.
The 320mm Liebert EXM Battery Cabinet must be moved into position with shipping
brackets in place to provide side-to-side stabilization. The brackets may be removed after
the battery cabinet is bolted to the Liebert EXM UPS.
The casters are strong enough for movement across even surfaces only. Casters may fail if
they are subjected to shock loading, such as being dropped or rolled over holes in the floor
or obstructions. Such failure may cause the unit to tip over, injuring personnel and
damaging the equipment.
AVERTISSEMENT
Le centre de gravité élevé de l'appareil présente un risque de renversement lors des
déplacements, peut entraîner des dommages matériels, des blessures et même la mort.
Les roulettes sont suffisamment résistantes pour le déplacement sur des surfaces planes
uniquement. Les roulettes peuvent être endommagées si vous les soumettez à des
impacts, notamment en cas de chute ou de passage sur des obstacles ou trous dans le
plancher. Une telle défaillance peut causer le renversement de l'appareil, qui risque de
blesser le personnel et d'endommager l'équipement.