Festo DFPI Series, Instructions

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Design of DFPI -...- ND2P-C1V-A
1 Mounting thread (rear)
2 Piston rod with mounting thread
for coupling and spanner flat for
counter holding
3 End cap
4 Flange type socket
5 Slot for proximity sensor
Fig. 2
Design of DFPI-...-ND2P-C1V-PA (protected pneumatic connections)
1 Mounting thread (rear)
2 Piston rod with mounting thread
for coupling and spanner flat for
counter holding
3 Port for local exhaust with plug
screw (ex­works)
4 End cap
5 Connecting cable with protective
conduit (optional)
6 Flange type socket
7 Slot for proximity sensor
Fig. 3
4.2.2 Control and connection elements (example: DFPI-...-ND2P-C1V-P-A)
1 Flow control screw D2
2 Pneumatic connection P
(compressed air supply)
3 Electrical connection
(behind the flange type socket)
4 Earth terminal
5 Pressure compensation element
6 Flow control screw D4
7 Pneumatic port R (exhaust)
Fig. 4
5 Transport
WARNING!
Danger of crushing. Danger of shearing.
Body parts can be crushed or severed if the product falls.
•
Use appropriate load handling equipment.
6 Assembly
NOTICE!
Lateral forces on the piston rod.
Damage to the piston rod bearing.
•
Avoid lateral forces on the piston rod, e.g. by external guidance of the pay­
load (permitted for guided process valves only).
NOTICE!
Accidental switching signals from proximity sensors caused by ferritic materi-
als.
When linear drives are installed too close to one another, the cylindrical magnet
may cause interference with the proximity sensor on the adjacent linear drive.
•
Determine and maintain the required minimum distances from ferritic materi­
als.
– If the temperature of the medium in the piping and process valve is high, use
a heat­insulated coupling extension.
– When mounting on a process valve/shut­off valve, follow the required pro­
cedure for opening or closing the process valve/shut­off valve.
The DFPI has a mounting hole pattern as per DIN 3358.
–
If necessary, use an adapter è www.festo.com/catalogue.
– Use 4 retaining screws.
– Tighten the retaining screws evenly.
Tightening torques –M8: 25 Nm ± 5% ; M10: 46 Nm ± 5%.
– The piston rod has a male thread for mounting the slide gate. The spanner flat
on the piston rod is used for counterholding to prevent impermissible torques
on the piston rod (spanner size
è
13 Technical Data).
1 End cap
2 Adapter for mounting the slide
gate (examples)
3 Bearing cap with 4 mounting
threads for assembly (hole pattern
as per DIN 3358)
Fig. 5
Use of proximity sensors (optional)
– Place proximity sensors in the corresponding slots. Cover rails above the slots
protect the cables away from dirt.
1 Cover rail
2 DFPI­...­ND2P­C1V­PA
4 Proximity sensors
3 Slot for proximity sensor
Fig. 6