Oerlikon Leybold Vacuum Sogevac SV630 B Operating Instructions Manual page 27

Installation
Motorization
European versions :
A 50/60 Hz motor is mounted in standard on the SV630 B and SV630 BF.
Voltages :
400 V ±10% at 50 Hz
460 V ±10% at 60 Hz
A motor working only at 50 Hz is mounted in standard on the SV750.B
Voltage :
400 V ±10% at 50 Hz
Japan versions :
A JIS 50/60Hz motor is mounted in standard on the SV630 B and SV630 BF.
With CTP sensors.
Voltage :
200 V ±10% at 50 Hz and 60 Hz
US versions:
A NEMA motor is mounted in standard on the SV630 B and SV630 BF. With
CTP sensors.
Voltages :
400 V ±10% at 50 Hz
230 V/460 V ±10% at 60 Hz
Particularities SV630 BF
The pump SV630 BF is in standard equipped with options which have to be
connected before starting up the pump.
Gas Ballast (EM Valve)
Normally closed (Power supply 24 V DC ±10%)
To be wired in connection box (see fig. 7).
Electromagnetic valve (antisuck-back valve)
Normally open
To be supplied in 24 V DC as soon as the pump starts. Shut down power
supply as the pump stops.
If several pumps with EM antisuck-back valves are operated in parallel, there
is a risk in case of V belt failure that the pump oil is sucked out. This can be
prevented by using a valve on the intake port controlled by a motor cos ϕ
controlling device.
The rotation detector P/N 9 714 48 780 can be used as well as a retrofit or on
new pumps.
GA02319_002_03 - 07/2007 - © Oerlikon Leybold Vacuum 27