Festo MPA-FB Series, Manual

Page: 108 / 168

5. Diagnosis and error treatment
5−12
Festo P.BE−MPA−EN en 0502b
Before fitting the electronic module
There are different designs of the electronic module depend
ing on the connection variant.
Electronic module for the MPA valve terminal with CPX ter
minal
Caution
Damage to components and functional damage
It is not permitted to supply voltage to MPA pneumatic
modules with electronic modules without electrical isola
tion via an interlinking block for valve supply type CPX−GE−
EV−V.
·
If your MPA pneumatics are fitted with electronic mod
ules of type VMPA1−FB−EM
S −8 or VMPA2−FB−EM S −4, you
must supply the MPA pneumatics only by means of the
system supply module type CPX−GE−EV−S.
Note that MPA electronic modules may only be supplied via
the following supply modules:
MPA electronic module Permitted supply modules
VMPA...−FB−EM
S
−... (
without
electrical isolation) System supply (CPX−GE−EV−S)
VMPA...−FB−EM G −... ( with electrical isolation) System supply module (CPX−GE−EV−S)
1)
Valve supply module (CPX−GE−EV−V)
1) The electrical isolation will be rendered ineffective if the system supply is used.
Table5/2:
Permitted supply modules for MPA electronic modules
On electronic modules with electrical isolation type VMPA...−
FB−EMG−... Vel/sen and Vval are completely electrically isola
ted. In conjunction with an interlinking block with valve sup
ply type CPX−GE−EV−V, it is therefore possible to switch off the
valve supply voltage at all poles.