Specifications

2015/03 – Subject to change
31
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Valve terminals MPA-L
Key features – Display and operation
Display and operation
Signal status display Manual override
Each solenoid coil is allocated an LED
that indicates its signal status.
 Indicator 12 shows the switching
status of the coil for duct 2
 Indicator 14 shows the switching
status of the coil for duct 4
The manual override (MO) enables the
valve to be actuated when not
electrically activated or energised.
The valve is switched by pushing the
manual override.
Alternatives:
 A cover cap (code N, code y or as
accessory) enables the manual
override to be actuated by pressing
it using an appropriate tool.
 A cover cap (code V) can be fitted
over the manual override to prevent
it from being accidentally actuated.
Pneumatic connection and control elements
2
1
4
3
5
5
6
1 Flat plate silencer, duct 3/5
2 Manual override
(for each pilot solenoid coil,
non-detenting or
non-detenting/detenting)
3 Ducted exhaust air, duct 3/5
4 Ports 12/14 for external pilot air
supply and 82/84 for pilot
exhaust air in the right-hand end
plate (depending on version also
ducts 1, 3 and 5)
5 Supply port, duct 1
6 Working lines, ducts 2 and 4, for
each valve position
-H- Note
A valve actuated manually (by
means of the manual override)
cannot be reset electrically.
Conversely, an electrically actuated
valve cannot be reset using the
manual override.
Manual override (MO)
MO with automatic return (non-detenting) MO set via turning (detenting)
12
1 Press in the stem of the MO with
a pointed object or screwdriver.
Pilot valve switches and actuates
the main valve.
2 Remove the pointed object or
screwdriver.
Spring force pushes the stem of
the MO back.
Pilot valve returns to its initial
position and so too the single
solenoid main valve (not with
double solenoid valve code J).
12
1 Press in the stem of the MO with
a pointed object or screwdriver
until the valve switches and then
turn the stem clockwise by 90°
until the stop is reached.
Valve remains switched.
2 Turn the stem anti-clockwise by
90° until the stop is reached and
then remove the pointed object
or screwdriver. Spring force
pushes the stem of the MO back.
Valve returns to its initial
position (not with double
solenoid valve code J).