14 Safety instructions
Safe operation
These warnings are for all personnel who commission, plan the operation, or operate the
megawatt station.
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment.
• Keep all doors of the megawatt station closed during operation. Give the keys only to
authorized personnel.
• Before you start the inverter, close the two AC and two DC main switches, auxiliary
measurement unit switch 1F3.4, and the internal auxiliary transformer fuse switches,
and overload protection switches 1Q10, 1Q11, 2Q10 and 2Q11.
• During operation, do not open the AC or DC main switches.
• Before you adjust the inverter and put it into service, make sure that all of the
equipment is suitable for operation.
• The maximum allowed number of power-ups by applying power is five in ten minutes.
• Do not use the inverter in a manner not specified in this manual.
Note:
• Spend as little time as possible near the inverters or the medium-voltage components.
• If the Start switch is in the ON position, and the Start command is active, the inverter
starts immediately after a fault reset. For more information, refer to the PVS980 central
inverters firmware manual (3AXD50000026271 [EN]).
• Use the start delay when you start the megawatt station for the first time to let you
move away.
• Use a personal computer and the Drive Composer tool with a communication cable of
sufficient length when you monitor or adjust inverter parameters during operation.
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