SAUTER AVM322S-R Linear valve actuator AVM 234S series



The cross-section of the power cable must be selected based on the cable length and the number of

actuators. With five parallel actuators and a cable length of 50 m, a cable cross-section of 1.5 mm2

and a line resistance of > 1.5 Ω must be used (power consumption of the actuator × 5).

According to building installation regulations, the lines must be protected from overload or short cir

cuit

Specific standards such as IEC/EN 61508. IEC/EN 61511. EN ISO13849 and the like have not been

taken into account.

Local requirements regarding installation, usage, access, access rights, accident prevention, safety,

dismantling and disposal must be taken into account.

Place of installation

The devices may only be used indoors.

It is not admissible to use them in the following locations:

• in outdoor areas

• in potentially explosive atmospheres

• on ships or in vehicles

• in plants or machines with required functional safety.

Additional information

Fitting instructions

Declaration on materials and the environment

Declaration of incorporation

Power consumption at nominal voltage

Type

Running time (s/mm)

P100011900

MD 51.375

P100012470

Status

AVM321S

12 / (4)

Active power P (W) Apparent power S (VA)

Operation < 1.7

Standstill < 0.45

< 3.5

−

Sizing

AVM322S

6 / (4)

−

Operation < 1.7

Standstill < 0.45

Sizing

Max. power consumption with accessory 0500570001

for all types

Connection as 2-point valve actuator (24 V)

24 V=

24 V~

−

5.2

6.2

≥ 4.5

< 3.5

−

≥ 4.5

−

11

The OPEN/CLOSE activation is via two wires.

The actuator is connected to a permanent voltage via terminal MM and terminal 01.

When voltage (24 V) is applied to terminal 02. the actuator spindle extends into the end position.

After the voltage is switched off at terminal 02. the actuator automatically retracts into the base posi

tion.

Terminal 03 must not be connected or touch other contacts. We recommend that you insulate these.

Connection as 3-point valve actuator (24 V)

If voltage is applied to terminals MM and 01 (or 02), the valve can be moved to any position.

If voltage is applied to terminals MM and 01. the actuator spindle retracts.

If the electrical circuit is closed on terminal MM and 02. the actuator spindle extends.

If there is no voltage on terminals 01 and 02. the actuator remains in the respective position until volt

age is applied again.

Terminal 03 must not be connected or touch other contacts. We recommend that you insulate these.

Connection to a control voltage (0...10 V or 4...20 mA)

The built-in positioner controls the actuator depending on controller’s output signal y. A voltage signal

(0...10 V) at terminal 03 serves as the control signal. Coding switch S4 can be used to switch to a

current input (4...20 mA). If there is voltage on terminals MM/01 and a rising positioning signal, the

actuator spindle extends. The direction of operation can be reversed with coding switch S2.

The starting point and control span are fixed. For setting partial ranges (only for voltage input), a split

range unit is available as an accessory (see split-range unit function).

After the connection of the power supply and the initialisation, the actuator moves to every valve

stroke between 0% and 100%, depending on the control signal. Thanks to the electronics and the ab

solute distance measurement system, no stroke is lost, and the actuator does not require periodic re

initialisation.

If the control signal 0...10 V is interrupted in the direction of operation 1. the actuator spindle retracts

completely.

If the control signal 0...10 V is interrupted in the direction of operation 2. the actuator spindle extends

completely.

With coding switch S3. the characteristic of the valve/actuator combination can be adjusted. An

equal-percentage characteristic can only be generated when the actuator is used as a continuous ac

tuator.

Initialisation and feedback signal

The actuator initialises itself automatically when it is connected as a continuous actuator (not in 2-/3

point mode). With the first application of voltage the actuator moves until it reaches the mechanical

stop and connects to the valve.

For 8 mm travel range of AVM321SF132

After the actuator has stopped moving to connect to the valve, it moves to the upper first stop and

then to the 8 mm travel range in the opposite direction. If the valve travel range is greater than 8 mm,

the initialisation stops after 8 mm. The two values are recorded and stored by the absolute distance

measurement system. The control signal and the feedback are adapted to this effective stroke. If it

cannot move the 8 mm travel range, the initialisation is cancelled and the actuator indicates “Under

range”. After initialisation, the actuator goes to every valve stroke between 0% and 100%, depending

on the control voltage.

For 20 mm travel range of AVM322SF132

After the actuator has stopped moving to connect to the valve, it moves to the upper and lower stop.

The travel range thus achieved is recorded by the measurement system and apportioned as 0 to

100% travel range. The control signal and the feedback are adapted to this effective stroke.

In case of a power failure or the removal of the power supply, no re-initialisation needs to be carried

out. The values remain saved.

If the initialisation is interrupted, the initialisation restarts when the voltage is reapplied.

You trigger a re-initialisation by moving coding switch S8 from OFF to ON or vice versa.

When the process is triggered, the LED flashes green.

During initialisation, the feedback signal is inactive or equal to the value “0”. The initialisation is car

ried out with the shortest running time. The re-initialisation is only valid when the whole process is

complete.

If a stroke change is carried out, a re-initialisation must be triggered so that the new stroke can be

adapted.

If the valve actuator detects jamming, it will report this by setting the feedback signal to 0 V after

about 90 s. During this time, the actuator continues to try to overcome the jamming. If the jamming

can be overcome, the normal control function is activated again and the feedback signal is restored.

With 2-point or 3-point control without a feedback signal, no initialisation is performed.

Continuous control can also be implemented with a 230 V power supply with the external accessory

0500570003 “230 V module”. You must ensure that the neutral wire of the controller is connected to

the control voltage. The neutral wire of the power supply may only be used for the 230 V module