Alarm
Ausgangstyp
[ << nomally open >> << normally closed >> << dsabled>> ]
Output No.
[ 1,06 ] 0
11.2.3 EM U2 per zone
Application-specific nomenclature
EOL End of the main line
Valve A EMU2 zone valve A
Valve B EMU2 zone valve B
Proximity sensor For stroke monitoring
The EM U2 is an electromotive change-over
valve. The change-over is performed by a
4/2 or a 3/2 directional spool valve that is
actuated by a DC geared motor. The motor
is controlled by a signal from the attached
discharge pressure monitor. The motor ro-
tation is converted into stroke movement of
the change-over piston by an eccentric and
an eccentric rocker.
Once the piston end position is reached, the
position switch turns off the motor.
The change-over piston remains in its
position until the next time the motor is
actuated.
Instructions
Electromotive change-over valve EM U2-
KN with electromotive 2/2 and 3/2
directional spool valves WS-E-W...KN
Document No. 1.3DE-28801-A12
1.3G-28001-C06
EN
98