www.ismacontrolli.com
page 2
DBL394en | 1
st
Issue rev. 8 | 07/2022
DESCRIZIONE
MVE204
MVE204S
MVE206
MVE206S
MVE210
MVE210S
MVE215
MVE215S
MVE222
MVE222S
Output U
Voltage 2-10 V DC (0-100%), max load 2 mA
Room temperature
Operation -10°C to 55°C; storage -20°C to 55°C
Room humidity
Max. 90% R.H.
Protection degree
IP54 (with PG13,5 cable gland - not supplied)
Insulation class
Standard
Emission/Immunity EMC 2014/30/UE according to EN 61326-1:2013 standard
LVD 2014/35/UE according to EN61010-1 standard
Material
Housing: aluminium - cover: ABS plastic
Colour
Aluminium / white
Weight [kg]
1.7 (MVE2xx); 1.6 (MVE2xxS)
OPERATION
The actuator translates the control signal (modulating or 3 point floating) from the controller into a valve position. A modern brush-
less DC motor in the actuator drive a gear train and a worm gear – screw jack mechanism convert the motor revolutions into accurate
and repeatable linear movements.
Control Signal
MVE2xx can be controlled by one of 2 main control types.
• 3 point floating;
• modulating (or proportional) signal with field selectable range (e.g., 0-10 V DC, 2-10 V DC, 0-5/2-6V DC, 5-10/6-10 V DC and 4-20
mA).
Manual Override
There is a manual operation handle on the actuator. When it is lowered (manual override ON), the power supply to the motor power
stage circuitry is cut and the motor stops. The actuator can be operated manually and the valve positioned accordingly. The manual
override lever latches in position until it is raised again, then board and motor will be powered again. At the end of this operation
the actuator moves to initial position (on the basis of DIP n. 1 setting) then it follows the control signal. When the manual override is
engaged the GREEN and the RED LED are ON.
Manual operation handle can also be used to modify any DIP switch setting or as re-set function after any alarm occurrence. The
actuator is supplied with the manual override lowered (ON). It is not necessary to remove power supply to modify DIP switch setting,
but, in this case, take care of 230Vac voltage.
Feedback Position
The actuator utilizes a 2-10 V position feedback (look at DIP n. 1 setting).
Calibration
The actuator has both auto and manual stroke calibration, DIP n. 7.
In factory delivery the auto stroke calibration is enabled – manual calibration is not necessary unless maintenance is required on the
valve or certain alarm functions are desired.
End Point Auxiliary Switches (accessory DMVE)
End point switches change over when the valve is fully open or closed. They are free contact with 24V AC/DC, 4A max voltage to
terminals.
End point switches can be utilized to indicate valve stroke end positions and for relay control of additional plant equipment. When
the actuators are controlled individually or in sequence, it is possible to use the end switches to toggle when the valve is fully open
or fully closed. The auxiliary switch position according to control signal (Y) is shown in the table below.
CONTROL SIGNAL (Y)
RELAY KC1
RELAY KC2
0-0,5 V DC
KC1 to K2
KC2 to K3
0,5-9,5 V DC
KC1 to K1
KC2 to K3
9,5-10 V DC
KC1 to K1
KC2 to K4
