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The "-EXS" Option
In high inertia applications, energy stored in the load must be dissipated in the amplifiers
bridge, bus capacitance, and parallel shunt load. In certain machining operations, multiple
passes are required and the heat rise from this energy cannot be dissipated in the amplifiers
internal shunt without causing an amplifier thermal fault. The "-EXS" option provides a means
of mounting the shunt load outside of the amplifier.
The "-EXS" suffix applied to the amplifier model provides for the interconnection of the
external shunt load.
There are three available external shunt loads. They are designated as:
These shunt loads have two 100 CFM fans and electric heaters for load resistors. They are
also equipped with a thermal shut down switch.
The shunt load should be mounted external to the amplifier enclosure but within four feet of
the amplifier. The wiring can be accessed through a 3/4" seal tight connection with an optional
cover or it can be wired directly.
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EXS-50-230
EXS-100-230
EXS-50-460
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