Parker Hannifin S.p.A. Divisione S.B.C. user’s manual TWIN-N and SPD-N
12
1.4.5 Safety instructions for operation
High voltage ! Risk of electric shock ! Danger of life !
• All live parts must be protected against direct contact. The drive must be closed inside a
cabinet before switching it on.
• Working on power live parts (terminals) must be conducted with the drive switched-off.
Dangerous voltages may be present at power terminals even after the supply has been
switched off and the motor stopped. Make sure the equipment cannot switched on
unintentionally. Wait at least 6 minutes before working on live parts after the unit has been
switched-off.
• The drive and the motor must be permanently connected to earth accordingly to the
connection diagram, even for brief measurements or tests.
High leakage current ! Risk of electric shock ! Danger of life !
• Earth leakage current during operation may exceed 3,5 mA AC or 10mA DC.
• Earth connection must be permanent : use copper wire having a minimum size of 10mm
2
throughout all the length.
• Before switching the equipment on, make sure that all devices, including the motor, are
permanently connected to earth, even for brief test or measurements, as shown in the wiring
diagrams. Otherwise high voltages may appear on equipment conductive surfaces with danger
of electrical shock.
• Always refer to current local regulations for grounding. For installation within European
Community refer to EN61800-5-1 product standard, section 4.2.5.4.2. For installation in the
USA refer to NEC (National Electric Code) and NEMA (National Electric Manufacturers
Association). The product installation should always comply with the above said standards.
Hot surfaces ! Danger of injury ! Danger of burns !
• Some external surfaces of the equipment and same internal part may reach very high
temperatures. Danger of burn and injury if touching these parts.
• After switching the equipment , wait at least 15 minutes to allow it to cool before touching it.
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