Festo DFPI Series, Instructions

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11 Disassembly
WARNING!
Danger of crushing! Uncontrolled advance of piston rod.
When the energy supplies are switched off, if the compressed air supply is
switched off first and only then the operating voltage, in case of a fault
(e.g. defective valve block) there may be continuous excess pressure in a cylinder
chamber. The piston rod may then advance unexpectedly during disassembly and
crush body parts.
Switch off the energy supplies in the following sequence to ensure that the integ­
rated valve block can safely exhaust the drive:
•
First switch off the operating voltage supply.
• Only then switch off the compressed air supply.
WARNING!
Danger from parts flying through the air!
If there is still excess pressure in a cylinder chamber despite the compressed air
supply being switched off, when a cylinder end cap is loosened it may fly off sud­
denly through the air and injure people.
•
Do not dismantle the cylinder end cap! The product must be overhauled by
the Festo repair service only.
1. First switch off the operating voltage supply and then the compressed air sup­
ply so that the integrated valve block exhausts the drive.
2. Disconnect the slider gate from the piston rod.
3. Loosen the screws on the flange of the process valve or shut­off weir.
4. Remove drive (along with mounting adapter and coupling extension if neces­
sary).
12 Disposal
– Observe the local regulations for environmentally friendly disposal.
– Dispose of the product in an environmentally friendly manner. When doing
this, also take residual media into account (recycling of hazardous waste
where appropriate).
13 Technical Data
DFPI-...-ND2P-C1V-...-A -100 -125 -160 -200 -250 -320
Based on standard DIN 3358
Type of mounting On flange to DIN 3358
Flange hole pattern F07 F10 F10, F14
Spanner size on the piston
rod 22 27 36
Constructive design Piston rod, cylinder barrel
Cushioning No cushioning
Mounting position Any
Mode of operation Double­acting
Position detection With integrated displacement encoder
Measuring principle of dis­
placement encoder Potentiometer
Positioning accuracy [% FS] 1
Repetition accuracy [% FS] ±1
Hysteresis [% FS] ±1
Size of dead space [% FS] 1
Accuracy of analogue output [% FS] ±1
Analogue output response
time [ms]
<
100
Analogue output load [Ω] 600 (maximum)
Analogue input load [Ω] 500 (maximum)
Electrical connection 5­pin; straight plug; screw terminal
Pneumatic connection
DFPI­...­ND2P­C1V G ¼
DFPI­...­ND2P­C1V­P... for tubing outside
Æ
8 mm
for tubing outside
Æ
10 mm
Operating pressure [bar] 3 … 8
Nominal operating pressure [bar] 6
Operating medium Compressed air to ISO 8573­1:2010 [7:4:4]
Note on the operating medi­
um Lubricated operation possible
(required in further operation)
Relative humidity [%] 0 … 100 (condensing)
Operating voltage range [V DC] 24 ± 10 %
Nominal operating voltage [V DC] 24
Max. current consumption [mA] 220 (at 24 V DC)
No­load supply current [mA] 40 (at 24 V DC)
Max. cable length [m] 15
Reverse polarity protection For operating voltage, setpoint value, initialisation con­
nection
Setpoint input [mA] 4 … 20
Analogue output [mA] 4 … 20
DFPI-...-ND2P-C1V-...-A -100 -125 -160 -200 -250 -320
Initialisation input [V DC] 22.8 … 26.4; I = 11 mA (at 24 V DC)
Seal closing function
(eng. Leak Proof Function) [mA] 4.0
£
I
£
4.2
19.8
£
I
£
20.0
Degree of protection (in
assembled state) IP65, IP67, IP68, IP69K, NEMA 4
Stroke [mm] 40 … 990
Stroke reserve [mm] 3 4
Ambient temperature [°C] –5 … +50
Outdoor use C1 (weatherproof locations as per IEC 60654)
Product weight
Basic weight at 0 mm stroke
DFPI­...­ND2P­C1V [g] 4671 7693 9099 18358 29956 45200
DFPI­...­ND2P­C1V­P [g] 5237 8259 9665 18924 30552 45766
Additional moving mass per
10 mm stroke [g] 27 52 52 87 87 87
Moving masses at 0 mm
stroke [g] 1228 1944 2250 4722 7059 11417
Additional weight per 10 mm
stroke [g] 80 145 159 187 325 399
Additional weight of dis­
placement encoder per
10 mm [g] 2 2 2 2 2 2
Materials
Cylinder barrel Anodised wrought aluminium alloy High­alloy stain­
less steel
Cover (end cap)
Bottom cover (bearing cap)
Anodised wrought aluminium alloy or
Anodised and painted wrought aluminium alloy or
Die­cast aluminium
Piston rod High­alloy stainless steel
Screws High­
alloy
stain­
less
steel Steel and high­
alloy stainless
steel High­alloy stainless steel
Seals NBR,
PU NBR
Note on materials RoHS­compliant, contains PWIS substances
Vibration resistance as per
DIN/IEC 68 Part 2­6 0.35 mm path at 10 … 60 Hz;
5 g acceleration at 60 … 150 Hz
Continuous shock resistance
as per DIN/IEC 68 Part 2­82 ±15 g at 6 ms duration;
1000 shocks per direction
Approval RCM
CE marking
(See declaration of conform­
ity
è www.festo.com)
In accordance with EU­EMC Directive
1)
In accordance with EU Explosion Protection Directive
(ATEX)
2)
1) The device is intended for industrial use. Outside industrial environments, e.g. in commercial and mixed­
residential areas, actions to suppress interference may have to be taken.
2) Approval­specific special documentation must be taken into account è www.festo.com/sp.
Tab. 5 Technical Data