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04.05
NOTE
These operating instructions do not purport to cover all details or variations in equipment,
nor to provide for every possible contingency to be met in connection with installation,
operation or maintenance.
Should further information be desired or should particular problems arise which are not
covered sufficiently for the purchaser's purposes, the matter should be referred to the local
Siemens Sales Office.
The contents of these operating instructions shall not become part or modify any prior or
existing agreement, commitment or relationship. The Sales Contract contains the entire
obligations of Siemens. The warranty contained in the contract between the parties is the
sole warranty of Siemens. Any statements contained herein do not create new warranties or
modify the existing warranty.
DANGER
Converters contain hazardous electrical voltages, Death, severe bodily injury or significant
material damage can occur if the safety measures are not followed.
1. Only qualified personnel, who are knowledgeable about the converters and the provided
information, can install, start up, operate, troubleshoot or repair the converters.
2. The converters must be installed in accordance with all relevant safety regulations (e.g.
DIN VDE) as well as all other national or local regulations. Operational safety and
reliability must be ensured by correct grounding, cable dimensioning and appropriate
short-circuit protection.
3. All panels and doors must be kept closed during normal operation.
4. Before carrying out visual checks and maintenance work, ensure that the AC power
supply is disconnected and locked out. Before the AC supply is disconnected, both
converters and motors have hazardous voltage levels. Even when the converter
contactor is open, hazardous voltages are still present.
5. When making measurements with the power supply switched on, electrical connections
must not be touched under any circumstances. Remove all jewelry from wrists and
fingers. Ensure that the test equipment is in good conditions and operationally safe.
6. When working on units which are switched on, stand on an insulating surface, i.e. ensure
that you are not grounded.
7. Carefully follow the relevant instructions and observe all danger, warning and cautionary
instructions.
8. This does not represent a full listing of all the measures necessary for safe operation of
the equipment. If you require other information or if certain problems occur which are not
handled in enough detail in the information provided in the Instruction Manual, please
contact your local Siemens office.
Siemens AG 7VV3003-8TA74
SICROWBAR 7VV3003 DC-Surge Suppressor Operating Instructions
1 - Safety Information
ENGLISH
5
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