
D397-53-880 Issue C
Page 8
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Installation
3.3
Fitting the module to a CXS pump
To fit the module to the CXS pump, contact Edwards.
3.4
Electrical connections
The Profibus module should not be connected to a pump when the pump or tool are "On Process".
The Profibus Module uses the pump's rear (system) PDT port (a 5-way XLR socket) for communication with the pump.
It is not possible to connect any other devices to the same PDT port when that port is used by the Profibus Module,
for example a PDT.
If the pump has several accessories attached, guidance should be sought from Edwards to ensure the pump is able to
provide enough power.
Use the cable provided in the kit to connect the 9-way D-type free socket and the DC power connector to the Profibus
module. Connect the 5-way XLR plug to the pump rear (system) PDT port.
Figure 5 - Profibus module rear connections
3.5
Profibus network connection
Standard Profibus network cables and connectors compliant to EN50170 should be used to connect the Edwards
Profibus Module to your system.
Bus-termination is not supplied with the module, but must be used as for a normal Profibus DP system. Bus
termination must be used at both ends of the Profibus trunk and not anywhere else. If the module is placed at one
end of the trunk a connector containing the standard termination resistors should be used. The appropriate 5 V and
0 V signals are supplied on the standard pins for this purpose.
WARNING
When installing the module ensure that the cables are laid out and secured in a manner that will
not create a trip hazard.