D395-93-880 Issue A
Page 14 © Edwards Limited 2011. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Installation
3.8 Connect the electrical supply
Always make the electrical connections to the T-Station after the equipment has been installed on your vacuum
system. Always disconnect the electrical supply from the T-Station before removing the equipment from the
vacuum system.
Check that your electrical supply is suitable for this equipment. Refer to Table 3 for the electrical requirements for
this equipment. Make the electrical connection to the T-Station using a cable fitted with an IEC60320 connector. A
range of suitable cables is available from your supplier.
3.9 Configure the T-Station
As supplied from the factory, the T-Station will control the system as follows:
System start is selected:
The TAV vent valve will close*.
The backing pump will turn on.
The turbomolecular pump will start accelerating up to full rotational speed.
System off is selected:
The backing pump will turn off.
The turbomolecular pump drive will turn off and the pump will start to decelerate.
The TAV vent valve will open fully from 50% of full rotational speed*.
* This operation refers to systems which have been fitted with an Edwards TAV vent valve (optional accessory). For
more vent options refer to Section 4.3.3.
3.9.1 Turbo pump delay
The T-Station can be configured to delay the turbo pump after the backing pump has started (refer to Section 4.3.4),
this is helpful to prevent the turbomolecular pump from accelerating under high pressure for a prolonged period if
the volume being pumped is greater than 2 litres. This option is especially useful if your T-Station uses an XDD1
diaphragm pump. Below the chart shows the recommended delay period for a turbo / XDD1 pump combination.
Ensure that the electrical installation of the T-Station conforms with your local and national safety
requirements. It must be connected to a suitably fused and protected electrical supply and a
suitable earth point.
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