Keeping the World Flowing
11
Fitting the Profibus card
3.2 Replacing or Fitting a Profibus DP
Option Card
The PFU should be replaced or fitted only in a suitable
environment. The actuator must be made electrically safe
before opening any covers.
Warning: Removal of certain covers will void
warranty, it is advised that a Rotork
approved engineer perform this function.
Suitable anti-static precautions should be taken, as the
actuator circuitry contains static-sensitive components.
The electrical housing cover should be removed and the
existing PFU carefully unplugged from its main connector.
The Interface card will be attached to the Main PCB mounting
ring by four screws, which are T20 (or T15 if two cards are
present). Once removed from the main connector the wiring
loom connectors should be removed. The replacement board
is fitted in the reverse order to removal. The wiring harnesses
are polarised so that only the correct one will fit its mating
part on the circuit board.
If the operation is to fit a PFU for the first time then the
necessary wiring looms must be added to the internal wiring
harness of the actuator. The actuator wiring diagram shows
the connectors and harnesses used. The wiring harnesses are
fitted inside the actuator before attempting to fit the PFU.
Once the looms are in place connect them to the PFU, then fit
the PFU to the actuator main board connector.
Once the module is fitted the actuator should be re-
assembled and the battery reconnected (if applicable). If an
option card is fitted into a Rotork after it has left the factory
then the actuator needs to be set-up to use this card in the
software, the card will not do anything until this has been
done. This can be done using the HMI or Accent but needs
to be done by a Rotork service engineer. This is not necessary
if a card is being replaced with the same type of card, e.g.
replacing Profibus with Profibus.
It is advisable to check the software version numbers are the
same between the new and old card to ensure consistence
operation.
For more information please contact Rotork.
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