Festo PWEA-AC Series, Operating Instructions

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Translation of the original instructions
1 Further applicable documents
All available documents for the product è www.festo.com/pk.
2 Safety
2.1 General safety instructions
– Only use the product in its original condition without unauthorised modifica­
tions.
– Only use the product if it is in perfect technical condition.
– Observe product labelling.
– Take into consideration the ambient conditions at the location of use.
– Before working on the product, switch off the power supply and secure it
against being switched back on. Only switch on the power supply when the
product has been assembled and installation work is complete.
– Comply with the handling specifications for electrostatically sensitive devices.
– Observe tightening torques. Unless otherwise specified, the tolerance is
± 20 %.
2.2 Intended use
1 Feed pipe
2 Sensor
3 Pilot valve
4 Diaphragm
5 Drain pipe
6 Housing
Fig. 1 Function
The intended purpose of the PWEA­AC/­AP condensate drain is to discharge con­
densate from compressed air systems. The condensate flows through the feed
pipes
1 to the PWEA­AC/­AP and collects in the housing 6 . A capacitive sensor
2 continuously monitors the fill level and sends a signal to the electronic control­
ler when the reservoir is full. The pilot valve 3 is actuated and the diaphragm
4 opens the drain pipe to discharge the condensate 5 . If the PWEA­AC/­AP is
emptied, the drain pipe is closed before a loss in pressure can occur. The device is
not intended to be used with fluids and gases.
2.3 Training of qualified personnel
– Installation, commissioning, service and disassembly should only be conduc­
ted by skilled personnel.
– The skilled personnel must be familiar with the installation of electrical and
pneumatic control systems.
2.4 Approvals
The product fulfils the requirements of EU directives and comes with the CE mark­
ing .
The product­relevant EU directives and standards are listed in the declaration of
conformity
è www.festo.com/sp.
2.5 Further information
– Accessories è www.festo.com/catalogue.
– Spare parts è www.festo.com/spareparts.
– Documents and literature è www.festo.com/sp.
3 Product overview
Fig. 2 Condensate drain PWEA­AP­3D
Fig. 3 Condensate drain PWEA­AC
3.1 Product design
1 Sensor board
2 Front hood
3 Screws
4 Cable connector
5 Terminal KL 4
6 Terminal KL 2
7 Cable connector
8 Cable connector
9 Cable
10 Cable
11 Screw
12 Power supply housing
13 Terminal KL 1
14 Terminal KL 5
15 Power supply board
Fig. 4 Product design
4 Installation
4.1 Pneumatic installation
Observe the pressure differences.
•
Each condensate accumulation point must be drained separately.
8093862
PWEA-AC/-AP
Condensate drain
8093862
2018­06a
[8093864]
Instructions | Operating
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347­0
www.festo.com