16 Safety instructions
IEC/EN 61800-5-1, subclause 6.5.3, for example, "THIS MACHINE STARTS
AUTOMATICALLY".
• The maximum number of drive power-ups is five in ten minutes. Too frequent power-
ups can damage the charging circuit of the DC capacitors.
• Make sure that any safety circuits (for example, emergency stop and Safe torque off)
are validated at start-up. See chapter The Safe torque off function (page 199). For
other safety functions, see their separate instructions.
Note:
• If you select an external source for the start command and it is on, the drive will start
immediately after fault reset unless you configure the drive for pulse start. See the
firmware manual.
• When the control location is not set to Local, the stop key on the control panel will not
stop the drive.
• Only authorized persons are allowed to repair a malfunctioning drive.
Electrical safety in installation, start-up and maintenance
Electrical safety precautions
These warnings are for all personnel who do work on the drive, motor cable or motor.
WARNING! Obey these instructions. If you ignore them, injury or death, or
damage to the equipment can occur. If you are not a qualified electrician, do not
do installation or maintenance work. Go through these steps before you begin any
installation or maintenance work.
1. Keep the cabinet doors closed when the drive is powered. With the doors open, a risk
of electric shock and/or arcing exists.
2. Clearly identify the work location.
3. Disconnect all possible voltage sources.
• Open the main switch-disconnector (frame R11) (Q1) of the drive. Open the
disconnector of the supply transformer as the main switch-disconnector or breaker
of the drive does not remove the voltage from the input busbars of the drive or V-
meter (option +G334).
• Make sure that reconnection is not possible. Lock the disconnectors to open
position and attach a warning notice to them.
• Disconnect any external power sources from the control circuits before you do
work on the control cables.
• After you disconnect the drive, always wait for 5 minutes to let the intermediate
circuit capacitors discharge before you continue.
4. Protect any other energized parts in the work location against contact.
5. Take special precautions when close to bare conductors.
6. Measure that the installation is de-energized.
WARNING! If the measurement requires removal or disassembly of shrouding or
other cabinet structures, obey the local laws and regulations applicable to live
working (including – but not limited to – electric shock and arc protection).
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