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Auxiliary power supply
When a local low-voltage auxiliary power
supply is available at the RCU pole, this may
be connected directly to the RCU to provide
power in accordance with the following
guidelines. It is the user's responsibility to
provide an appropriate ground cable and to
conduct the installation.
The supply to the RCU must be protected at its
source with fuses and an isolating means. Fuses
must be sized to protect #16 AWG (1.5 mm
Ground connection between the ground terminal
of the power connection compartment and the
RCU enclosure ground must be undamaged and
intact.
Ensure that the voltage selector in the
power supply compartment is selected to
match the auxiliary power supply incoming
voltage. If the voltage selector is set to
115 Vac and 230 Vac is applied, the fuse will
blow. A spare fuse is supplied in the battery
compartment. If the voltage selector is set
to 230 Vac and 115 Vac is applied, the RCU
will not sense source supply on. Short-term
overvoltage of up to 120 percent nominal
voltage to the input can be sustained for
one hour without damage.
Hazardous voltages and high-speed moving parts.
Will cause death, serious injury and property damage.
Do not work on energized equipment. Always de-energize and ground the
lines before working on the equipment.
De-energize and isolate auxiliary power supply at the source before
removing power supply cover, and install power supply cover before
energizing auxiliary power to the RCU.
) wire.
2
Item
A
Figure 24: Auxiliary power voltage selector switch
A
Description
Voltage selector switch
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