Festo MPA-ASI Series, Руководство пользователя

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5. Maintenance and conversion
5−35
Festo P.BE−MPA−EN en 0802c
5.4.3 Adding valve locations
You can easily adapt the MPA−S valve terminal to the require
ments of your machine or system by adding valve locations.
The smallest extension unit is a sub−base with 4 valve loca
tions (MPA1) or 2 valve locations (MPA2).
MPA−S valve terminal with multipin connection
The valve terminals can be configured with as many sub−
bases as there are addresses available (see table). With these
valve terminals, the maximum number of solenoid coils which
can be actuated by the multipin connection is limited to
24addresses.
If control is carried out with size MPA 1 or MPA 2 and valves
with the same number of solenoid coils, this will result in the
following maximum number of sub−bases:
MPA−S valve terminal Valve locations per
sub−base (n
1
)
Valve coils per
valve location (n
2
)
max.
1)
MPA1 4 1 6
2
3
MPA2 2 1
12
2 6
1)
Maximum number of sub−bases when fitted exclusively with one size and with valves with the
same number of solenoid coils
Tab.5/9: Maximum number of sub−bases
With 24 controllable solenoid coils the maximum number of
sub−bases (X
max)
can be calculated as follows:
X
max
+
24
ǒ
n
1
n
2
Ǔ