5 Conversion and maintenance
Festo – P.BE-MPA-E N – 1309f – English 107
Note that MPA electronics modules may only be supplied w ith power via the following supply modules:
MPA electronics module...
Permissible supply modules
...with common circuit:
–VMPA1-FB-EMS-…
–VMPA2-FB-EMS-…
– System supply module (M18, 4-pin):
type CPX-GE-EV-S
– System supply (7/8”, 4-pin):
type CPX-GE-EV-S-7/8-4POL
MPA-S valve terminal with CPI interface:
– via the CPI interface, type VMPA-CPI.
…with separated circuits:
–VMPA1-FB-EMG-…
–VMPA2-FB-EMG-…
– Valve supply modules (M18 or 7/8”):
type CPX-GE-EV-V...
– Electric supply plate MPA-S,
type VMPA-FB-SP-...-V-…
– System supply modules (M18 or 7/8”)
1)
,
type CPX-GE-EV-S…
MPA-S valve terminal with CPI interface:
– Electric supply plate MPA-S,
type VMPA-FB-SP-...-V-…
1) If a 4-pin system supply is used, separation of the circuits is eliminated.
Tab. 5.2 Permissible supply modules for MPA electronics modules
In the c ase of M PA electronics modules with separated circuits of type VM PA1-FB-E MG-... or VMPA2-FB-
EMG-..., U
EL/SEN
and U
VAL
are completely separated. In combination with the following voltage sup-
plies, it is therefore possible to switch off the valve supply voltage at all poles:
– Interlinking block with valve supply (M18 or 7/8”), type CPX-GE-EV-V…
– System supply (7/8”, 5-pin), type CPX-GE-EV-S-7/8-5POL
– Electric supply plate M PA, type VMPA-FB-SP-...-V-…
Note
The electrical function of an MPA pneumatic module is determined by the electronics
module used, e.g.:
– electromagnetic compatibility (EMC)
– switching off of the valve supply voltage at all poles
You must unconditionally observe the instructions in the MPA-... electronics description
if you wish to install an electronics module of a different type.
Recommendation:
Replacing electronics modules only with the same type.
The electronics modules type VMPA...-FB-... support th e actuation of two solenoid coils
per valve position.