
8
Innovative Circuit Technology Ltd.
Figure 2: Power Module Release Latch
Install Unit
WARNING
Risk of serious personal injury or damage to equipment and property! Always
observe the following!
•
When using a backup battery ensure the nominal battery voltage is correct
for the model of Power Modules installed, and that the battery positive is
connected to the positive (+) terminal and the battery negative is
connected to the (-) terminal.
Note that the BAT terminal on the BMMD
may be internally tied to the (+) or (-) main output through the LVD
contactor, depending on the polarity of the power system used.
•
Use an appropriate DC over-current protection device such as a fuse or
circuit breaker in line with and near to the battery connection.
•
Only use the Equalize Charge setting for flooded lead-acid batteries in a
well-ventilated location.
Do not use Equalize Charge on sealed batteries!
Always consult with battery manufacturer and observe all battery
manufacturer recommendations.
•
If a Lithium-Ion battery is used, it must utilize an integrated battery
management system (BMS) to protect the battery cells from inappropriate
voltage or current levels.
•
Do not tie either Power Shelf main output to the BAT terminal on the BMM,
as this may short circuit the battery or bypass the internal LVD circuitry in
the BMMD.
•
Make any earth Ground connection to only a single LOAD or BAT terminal if
required. Do not ground both the load and battery as this may bypass the
internal LVD circuitry.
•
Each AC input wiring feed to the MPS Ultra must be protected using an
outlet with a branch rated circuit breaker (see chart on page 13 for breaker
rating).