TM
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Reference manual Foundation Fieldbus Control module
DOC.RM.QC34.E Rev: A
October, 2006
2 Installation
2.1 Introduction
The FieldQ FOUNDATION Fieldbus™ Control module is
a two-wire device powered by the bus.
For various application guides like installation and
wiring guidelines please check:
www.fieldbus.org/About/FoundationTech/Resources/
The following sections provide instructions on pneu-
matic and electric installations. For instructions on
commisioning, see chapter 3.
2.2 Applicable control modules
QC34 - FOUNDATION Fieldbus™
QC34 - FOUNDATION Fieldbus™ Non-Incendive
or Non Sparking
QC34 - Foundation Fieldbus™ Intrinsically safe
2.3 Before starting
* Be sure that the actuator is correctly mounted on
the valve before connecting air supply and electri-
cal wiring (see Installation & Operation Manual
FieldQ Valve Actuator, DOC.IOM.Q.E)
* Check the module label for the right execution (see
fig. 2.2)
* Check the type of actuator: single or double acting
(see fig. 2.2)
2.4 Pneumatic connections
IMPORTANT
* The actuator/valve combination can move after connecting
the air supply.
* Ensure that the pneumatic module and the control module
are mounted properly to the actuator to achieve a degree of
ingress protection rated IP65/NEMA4X, before connecting
the air supply.
* Check the maximum pressure Pmax = 8bar/116Psi
* Be sure that the minimum required supply pressure for the
application is available at the actuator.
* Condensation or moisture that enters the actuator, the
pneumatic module or the control module can damage these
components and can result in failures.
* The venting ports on the pneumatic module (see fig. 3) are
equipped as standard with silencers/filters rated IP65/
NEMA4X.
* In case IP65/NEMA4X ingress protection is required, the
exhaust ports Ra and Rb and the electrical entries must be
fitted with devices rated IP65/NEMA4X or higher.
2.4.1 Operating media
* Air or inert gases.
* Air filtered at 5 micron.
* Dew point 10 K bellow operating temperature.
* For subzero applications take appropriate mea-
sures.
2.4.2 Single acting (spring return) or
Double acting actuator
1 Remove the plug from the air supply (Ps).
2 Connect air supply to port (Ps).
Fig. 2.3: Pneumatic connections
OK
OK
Fig. 2.1: Check proper mounting before connecting
air supply and electrical wiring.
OK
OK
Control Module Type Label =
QC34... = FOUNDATION Fieldbus™
Actuator Type Label =
QS xxxx = Single acting (Spring Return)
QD xxxx = Double acting
Fig. 2.2 Identification
Single
acting
Double
acting
Control
Module cover
Venting ports
Ps : 1/4”BSP or 1/4”NPT
Ra
Rb
Ps : 1/4”BSP or 1/4”NPT
Rb
