6 - PVD3627-August 2011
1.2.2.
General Safety Rules
Generality
DANGER:
The installation, commissioning and operation must be performed
by qualified personnel, in conjunction with this documentation.
The qualified personnel must know the safety (C18510 authorization,
standard VDE 0105 or IEC 0364) and local regulations.
They must be authorized to install, commissioning and operate in
accordance with established practices and standards.
Electrical hazard
Servo drives may contain non-insulated live AC or DC components. See the
drives commissioning manual. Users are advised to guard against access to
live parts before installing the equipment.
The MGV requires special drives with flux weakening capabilities and all the
safety features and equipment required for such usage. Check with the drive
provider that the motor can be safely driven by its drive.
Some parts of the motor or installation elements can be subject to
dangerous voltages, especially when the motor is driven by the converter or
when the motor rotor is manually rotated.
Even after the electrical panel is de-energized, voltages may be present for
more than 3 minutes until the power capacitors have had time to discharge.
Use specified meter capable of measuring up to 1000V DC & AC RMS to
confirm that less than 50V is present between power terminals an earth.
Check the drive recommendations.
To prevent any accidental contact with live components, it is necessary to
check that cables are not damaged, stripped or not in contact with a
rotational part of the machine and to study first of all the following points:
- Connector lug protection
- Correctly fitted protection and earthing features
- Workplace insulation (enclosure insulation humidity, etc.)
General recommendations :
- Check the bonding circuit
- Lock the electrical cabinets
- Use standardized equipment
Mechanical hazard
Servomotors can accelerate in milliseconds. Running the motor can lead to
other sections of the machine moving dangerously. Moving parts must be
screened off to prevent operators coming into contact with them or to protect
the people against a shaft failure. The working procedure must allow the
operator to keep well clear of the danger area.
Burning Hazard
Always bear in mind that some parts of the surface of the motor can reach
temperatures exceeding 100°C.
