Whenever it is likely that safety protection is impaired, the unit must be made in-operative and
secured against unintended operation. The appropriate servicing authority must be informed. For
example, safety is likely to be impaired if the unit fails to perform the intended measurements or
shows visible damage.
Ensure that the cabinet is proper connected to the protective earth conductor.
The circuit breaker, that fuses the mains for the sat-nms ACU has to switch off all phases AND the
neutral wire as well.
WARNINGS
The outside of the equipment may be cleaned using a lightly dampened cloth. Do not use
any cleaning liquids containing alcohol, methylated spirit or ammonia etc.
Follow standard Electrostatic Discharge (ESD) procedures when handling the Unit.
Apply the appropriate voltage according to the attached schematic.
In case of switching off all the circuit breakers is still voltage available at the mains terminals!
Only use shielded cable to connect the AZ- and EL-Motor. The other components in the
cabinet might be jammed through the harmonic waves the frequency inverters inject into the
motor wires.
Use only double shielded twisted pair cables (e.g. CAT7 Ethernet cable) to connect the
resolvers to the sat-nms ACU
Only ACU-ODU : If the Unit is equipped with an optional air ventilation, avoid direct contact
with jets of water, normal rain is no problem.
The sat-nms ACU-ODU is a full featured antenna positioner and as an option antenna tracking
system. The electronics of the sat-nms ACU-ODU is build into an outdoor cabinet. The protection
class of the cabinet is IP66 if no optional air ventilation is installed. So it is no problem to install it
outside without any additional roof.
The unit consists from the components listed in the following table. All of these components are
described in the next chapters. As the unit is available in different versions (optional LNA power
supply, with or without Polarisation drive ect.) the following picture shows one standard cabinet.
The look and the arrangement of the units may vary depending on your demand.
(C) 2022, SatService GmbH
www.satnms.com
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