Safety

The mains shall only be connected provided with a protective earth wire. Any interruption of the protective wire, inside or outside the sat-nms ACU, is likely to make the unit dangerous. Intentional interruption is prohibited.

The unit described in this manual is designed to be used by properly-trained personnel only.

Adjustment, maintenance and repair of the exposed equipment shall be carried out only by qualified personnel who are aware of hazards involved.

Refer servicing to qualified personnel.

To prevent electrical shock, do not remove covers.

For the correct and safe use of the instrument, it is essential that both operating and servicing personnel follow generally accepted safety procedures in addition to the safety precautions specified in this manual.

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.

Installation of any electrical kind have to carried out by electrial skilled specialits only!

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.
• 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

Additional warnings only ACU2-ODU :

• If the Unit is equipped with an optional air ventilation, avoid direct contact with jets of water, normal rain is no problem.
• In case of switching off all the circuit breakers in the ACU2-ODU, there is still voltage available at the mains terminals! Install an external mains/feeder switch if you like to disconnect the whole cabinet from power. If UPS mains is connected, use a switch that disconnects mains power as well as UPS power at once!