Festo VDMA-02 Series Brief Description page 18

2.2 Fitting pneumatic components
Valve terminal type MN2H... and JMN2H...:
Please note
Closed or pressurised exhaust channels result in mal
function of the valves.
S Make sure that the pneumatic connection 12 of the
valve terminal is neither closed nor pressurised. It
serves as a common line for pilot ventilation and can
be vented in a common duct or equipped with a
silencer.
For valve terminals with S valves (valves which must be
piloted with external auxiliary pilot air), use only con
nection 14 to feed the auxiliary pilot air to an end plate
and to both end plates when using the NZV... adapter
block.
1
Connection 14
Supply of the pilot
control with external
auxiliary pilot air
2
Connection 12
Supply of the pilot
control
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Festo VDMA−02−ZR.. 0403a English
1