Festo MPA-ASI Series, Руководство пользователя

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A. Technical appendix
A−16
Festo P.BE−MPA−EN en 0802c
Electric components, MPA−S valve terminal with CPX terminal or CPI module
Electronic module VMPA...−FB−...
Operating voltage supply for electronic
components (V
EL/SEN
):
Nominal voltage
Max. intrinsic current consumption at 24 V
(internal electronics, all outputs 0 signal)
24 V DC ±25 %
8 mA
VMPA...−FB−EMG−... VMPA...−FB−EMS−...
Load voltage supply valves (V
VAL
)
Nominal voltage
Max. intrinsic current consumption at 24 V
(internal electronics, without valves)
Diagnostic message undervoltage V
VAL
,
load voltage outside function range
24 V DC ±25 %
typ. 23 mA
Ţ
17.5
Ū
15.5 V
24 V DC ±25 %
typ. 3 mA
Ţ
17.5
Ū
15.5 V
Maximum current consumption per solenoid
coil out of load voltage V
VAL
at 24 V
MPA1 MPA2
Nominal pull current/duration
Nominal current with current reduction 58 mA / 20 ms
9 mA after 20 ms 99 mA / 20 ms
18 mA after 20 ms
Pressure sensor plate
Accuracy
Display step width < ±2.5 % FS (full scale)
20 mbar
Proportional−DruckregelventilVMPA−6TA−...
Operating voltage supply
Nominal voltage
Current consumption 24 V DC (permitted residual ripple max. ±10 %)
max. 300 mA
Example of current calulation
Current consumption with two solenoid coils MPA2 switched in parallel and one electronics module
without electrical isolation:
I
EL/SEN
= 20 mA
Rated pick−up current: I
VAL
= 8 mA + 2 x 90 mA = 188 mA
Rated current with current reduction: I
VAL
= 8 mA + 2 x 18 mA = 44 mA
Tab.A/10: Technical specifications on electric components, MPA−S valve terminal with
CPX terminal or CPI module