2.2 Electrical Properties
The PFU connects directly to the Interface Card of the actuator. The PFU does not sit in the main
control path for the actuator and does not affect the actuator control integrity.
The Profibus DP fieldbus data highway connections are fully isolated from the actuator electronics.
2.3 Operation and Storage
The PFU is designed to be stored in the actuator and operated within the same environment as the
actuator.
The constraints are:
Operating temperature: -40
Storage temperature:
Relative Humidity:
Refer to actuator manuals for environmental range applicable for the particular actuator type.
o
o
C to +70
C
o
o
-50
C to +85
C
o
5% to 95% (<50
C) non-condensing
Publication PUB088-005-00_1017
Profibus Card Properties
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