Festo Пропорциональные регуляторы давления MPPE - Handbuch (Seite 5)

Proportional pressure regulator
MPPE-3-…B
Festo AG & Co. KG
Postfach
D-73726 Esslingen
+49 711 347-0
www.festo.com
Operation instructions 8024428
1207h
[8024429]
Original: de
English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Overview
1.1 Control sections and connections
1
2
3
4
5
1 Compressed air supply port (pres-
sure input)
2 Air supply port at the rear (pres-
sure output)
3 Exhaust port
4 Electrical connection
5 Through-hole for mounting
Fig. 1
2 Function and application
The MPPE-... is designed to control pressure proportionately to a specified, elec-
trical setpoint value.
A built-in pressure sensor records the pressure at the air supply port. The elec-
tronic control unit compares the pressure value with the setpoint value. An ana-
logue, electrical signal is issued corresponding to the output pressure. If the actual
value differs from the setpoint value, the regulating valve is actuated until the
output pressure reaches the setpoint value.
• Make sure that the MPPE-... is not subjected to high-frequency irradiation (e.g.
by radio sets, mobile telephones or other devices which cause interference).
In this way you will avoid increased tolerances in the output pressure (for fur-
ther information refer to the EMC specifications in the chapter “Technical
data”).
Only operate the MPPE in unlubricated condition. When using bio-oils (oils which
are based on synthetic or native ester, e.g. rapeseed oil methyl ester), the max-
imum residual oil content of 0.1 mg/m³ must not be exceeded (ISO 8573-1-2010
Class 2).
3 Prerequisites for use
Note
General conditions for the correct and safe use of the product, which must be
observed at all times:
• Maintain the specified limit values (e.g. for pressures, forces, torques, tem-
peratures and electric voltage).
• Ensure there is a supply of prepared compressed air to ISO 8573-1:2010
[7:4:4], inert gases.
• Please observe the prevailing ambient conditions.
• Also observe the regulations of the trade association, the German Technical
Control Board (TÜV), the VDE and relevant national regulations.
Note
• Remove all transport packaging such as protective wax, foils, caps, cartons
(except for plugs in the pneumatic connections).
The individual materials can be stored in containers for recycling purposes.
• Pressurise your entire system slowly (e.g. according to Fig. 2)
to avoid any uncontrolled movements.
• Please observe the warnings and instructions:
– on the product
– in these operating instructions.
• Use the product in its original state, without any unauthorised product modi-
fications.
Fig. 2
4 Installation
4.1 Mechanical
• Handle the MPPE-... with care so that the electrical
connection is not damaged.
Such damage will reduce operational reliability.
Fig. 3
• Make sure there is sufficient space for the cable
connection and tube couplings.
In this way you will prevent the connecting cable
from being bent.
• Keep the lines between the MPPE-... and the applic-
ation as short as possible.
This will result in enhanced control precision and
shorter response times.
• Insert the screws for mounting into the two holes
5.
• Secure the MPPE-... at the intended position.
Fig. 4