Festo MPAL-VI - Replacing or extending the sub-base, supply module, and;or replacing the right end plate

7 Modification
Festo – MPAL-VI-EN – 2017-07a – English 79
7.3 Replacing or extending the sub-base, supply module, and/or repla
cing the right end plate
7.3.1 Maximum number of sub-bases
If equipped exclusively with one size and valves with the same number of solenoid coils, this will result
in the following maximum number of sub-bases Xmax:
Electrical interlinking of the sub-base Solenoid coils
that can be activ
ated per valve po
sition n1
Valve positions per
sub-base n2
Maximum num
ber of sub-bases
X
max
Type Housing colour
Individual electrical interlinking module
VMPAL-EVAP-...-1 Grey 1 1 32
VMPAL-EVAP-...-2 Black 2 16
4-way electrical interlinking module
VMPAL-EVAP-...-1-4 Grey 1 4 8
VMPAL-EVAP-...-2-4 Black 2 4
Tab. 7.3 Maximum number of sub-bases
With 32 actuated solenoid coils, the maximum number of sub-bases X
max
can be calculated as follows:
X
max
+
32
ǒ
n
1
n
2
Ǔ
Valve terminal with CPX terminal:
 After converting or extending the valve terminal, adjust the number of output ad
dresses occupied by the pneumatic components using the rotary switch on the pneu
matic interface èChap. 2.6.8.
If a sufficiently large address space was reserved for the extension beforehand, make
no changes to the switch setting.
 Modifications to the configuration will not become effective until the operating
voltage is switched on again.