Installation
40
GA03107_002_A4 - 09/2015 - © Oerlikon Leybold Vacuum
3.3 Electrical Connection
For pumps without a motor, first fit a suitable motor, see Section 3.5.
Notice safety information 0.2.
Always provide an uninterrupted connection for the protective ground
conductor
connecting it in a professional manner. Never leave the pro-
tective ground conductor for the pump unconnected.
Do not link control circuits to the power circuit of the motor. Observe the
wiring diagrams.
The WA/WAU pumps are only limited suitable for operation in connection
with frequency converters. The max. permissible speed is 3,600 rpm
regardless of the size of the pump.
For ATEX applications, frequency converter operation is not possible.
Never allow the pump to run in the wrong direction or with open flanges for
a longer period of time.
The pump needs to be sufficiently grounded so as to avoid any electrostatic
charging. This is attained when the ground connection is properly connected
at the point provided for this purpose. During normal operation no dangerous
electrical charges will be produced (for fur ther information relating to the haz-
ards caused by static electricity, see CENELEC report CLC/TR 50404: 2003
Electrostatics - Code of practice for the avoidance of hazards due to static
electricity).
Connect the pump to the correct mains voltage through the terminals provid-
ed in the junction box.
Only the fittings provided on the junction box may be used.
The pump has no switching devices of its own. All protection measures in
connection with the power supply need to be implemented from the side of
the plant in the full responsibility of the customer.
After a mains power failure the pump will restart automatically once the
power returns.
If for this reason there results in connection with the application a danger
potential it needs to be ensured that a restart can only be performed after a
manual reset. This applies equally
emergency
shutdowns.
WARNING
NOTICE
Содержание RUVAC WA
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