FVP 110 Fieldbus Valve Positioner Manual
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GE Energy
or
❑ EEx ia IIB T4
❑ Maximum Voltage (Ui) = 17.5 V
❑ Maximum Current (Ii) = 380 mA
❑ Maximum Power (Pi) = 5.32 W
❑ Internal Capacitance (Ci) = 1.76 nF
❑ Internal Inductance (Li) = 0 μH
Number of Devices
The number of devices (max. 32) possible on a fieldbus link depends on factors such as
the power consumption of each device, the type of cable used, use of repeaters, etc.
Entity Model
Figure 7 Entity Model
I.S. fieldbus system complying with Entity model
I.S. values Power supply-field device:
Po ≤ Pi, Uo ≤ Ui, Io ≤ Ii
Calculation of max. allowed cable length:
Ccable ≤ Co - Σci - Σci (Terminator)
Lcable ≤ Lo - ΣLi