Inside A Skil Or Eh Actuator - rotork Profibus Modbus Module Mk2 Installation Manual

3.5 Inside a Skil or EH actuator

The PFU is suitable for fitting into Skil and EH actuators, wiring diagram SWM SI-001 and WD18460.
The PFU is normally located in the first option board slot inside the electrical housing using connection
SK1.
The Interface card must be correctly profiled and loaded with the appropriate connectors to match the
actuator. The illustration below shows the Skil and EH version of the PFU. The links for the bias
resistors are shown in the 'not terminated' position.
Fig 10: The Profibus Mk2 card profiled for the Skil and EH actuators
With the Skil/EH actuator the remote inputs are always present (they are conditioned by the PFU) and
there is an option to include Digital Outputs from relay contacts. The following table describes the
wiring harnesses and their function in the Skil/EH actuator.
PFU Socket
SK2
SK3
SK5
SK7
SK8
SK10
Note:  – Only available on Single Channel module.
To restore the interface card to its factory defaults and the associated default parameter settings, LK1
on the Interface card should be fitted and the power cycled (see Fig. 11).
Wiring Harness
24V power supply input from actuator
Profibus Fieldbus connection
Main Board connections
Not used
Not used
Analogue Input connection 
Publication PUB088-005-00_1017
Fitting the Profibus card
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