Operation; Connected As A 2-Point Actuator; Connected As A 3-Point Control Unit; Connections For Control Voltage 0...10V - sauter AVM Series Instructions Manual

51.362/2
AVM 104S...115S

Operation

Depending on how it is connected (see wiring diagram). the actuator can be used as a continuous
0...10V. as a 2-point (open/close) or as a 3-point drive (open/stop/close) with intermediate position.
The running time can be matched to requirements using switches S1 and S2 (AVM 105, S1 only). The
characteristic (equal-percentage or linear) can be selected with switch S3. The AVM 104/114 is com-
bined with valves that have a linear basic characteristic such as the VXN and BXN valves. The
AVM 105/115 is combined with valves that have an equal-percentage basic characteristic such as the
VUD. BUD. VUE and BUE valves. The AVM 115 can be fitted on a valve with a linear characteristic (e.g.
VUE 050F200). but you must pay attention to the position of the coding switches. With the AVM 105. it is
not possible to create an equal-percentage characteristic for a valve with a linear characteristic.
Manual adjustment is performed by disengaging the gears (sliding switch next to the power cable) and
simultaneously turning. using an Allen key in the insert on the upper part of the drive. Eight mm of
stroke is attained with 1½ turns.
N.B.: After manual adjustment. re-set the sliding switch (engage the gears).

Connected as a 2-point actuator

Open/close activation can be effected via two wires. Power is applied to the drive via the blue and the
brown wires. On connecting power to the black wire. the valve's control passage opens. When power
is switched off. the drive goes to the opposite end position and closes the valve.
The unused red and grey wires should not be connected. nor should they come into contact with other
wires. We recommend that you insulate them.

Connected as a 3-point control unit

By connecting power to the wires (brown or black). the valve can be moved to any position. The cou-
pling rod extends and opens the valve if power is applied to the black wire. It retracts and closes the
valve if power is applied to the blue and the brown wires.
In the end positions (on hitting a stop in the valve or reaching the maximum stroke) or in the event of
an overload. the electronic motor cut-off responds (no end switches). The direction of the stroke can be
changed by swapping the power-supply wires over (BN/BK). The unused red and grey wires should not
be connected. nor should they come into contact with other wires. We recommend that you insulate
them.

Connections for control voltage 0...10V

The integrated positioner controls the drive as a function of the controller's positioning signal y.
Direction of operation 1 (mains power on brown wire): the coupling rod extends and opens the valve
(control passage) as the positioning signal rises.
Direction of operation 2 (mains power on black wire): the coupling rod retracts and closes the valve
(control passage) as the positioning signal rises.
The starting point and the control span are both permanently set. There is a split-range unit available
(as an accessory) for setting partial ranges.
After manual adjustment or in the event of a power failure for longer than 5 minutes, the drive re-
adjusts itself automatically, always with a running time of:
AVM 104
AVM 114
AVM 105
AVM 115
After power has been applied. the stepping motor moves to the lower stop. connects to the valve spin-
dle and moves to the upper stop in the valve. thereby determining the closed position. Depending on
the control voltage. any stroke between 0 and 8 mm can then be obtained. Thanks to the electronics
unit. no steps can be lost. and the drive needs no periodical re-adjustment. Parallel operation of more
than one drive of the same type is guaranteed.
The feedback signal y0 = 0...10V corresponds to the effective stroke of 0 to 8 mm.
If the control signal (0...10V) is interrupted and direction of operation 1 is connected. the valve closes
fully (0% position).
The valve's characteristic can be selected using the coding switch. The characteristics can be gener-
ated only if the drive is used as a continuous drive. Other switches enable the running times to be set.
These can be applied irrespective of whether the 2-point. 3-point or the continuous function has been
chosen.
Sauter Components
65 s
60 s
35 s
60 s
7151362003 03