51.377/1
Type Run time
Stroke
Pushing
N
Power
Weight
AVM 234S: Valve actuator with SUT positioner
How energy efficiency is improved
Automatic adaptation to valve, precision control and high energy efficiency with minimal operating noise.
Areas of application
For use with through or three-way valves in the V/BUD and V/BUE DN65…150 series, and V/BUG,
V/BUS, VUP and V/B6R DN15…150. For controllers with continuous output (0…10 V or 4…20 mA) or
switching output (2-point or 3-point control).
Features
• Pushing force of at least 2500 N
• Stepping motor with SUT (Sauter Universal Technology) electronic control unit and electronic
load-dependent cut-off
• Automatic detection of control signal applied (continuous or switching), indicated by two LEDs
• The type of characteristic (linear, quadratic or equal-percentage) can be set on the actuator
• Automatically adapts to valve stroke between 8 and 49 mm; captive even in the event of a
power failure
• Direction of travel can be selected via screw terminals when making electrical connection or
remotely
• Coding switches for selecting the characteristic and the running time (2, 4 or 6 s/mm)
• Lever for external manual adjustment, with motor cut-off, and for triggering a re-initialisation
• Easy assembly with valve; spindle is connected automatically when control voltage is applied
• The availability of numerous adaptors enables the actuator to be fitted to third-party valves
Technical description
• Power supply 230 V with modules or direct connection for 24 V~ or 24 V=; continuous activa-
tion also permissible at 230 V
• Two-part housing made of fire-retardant yellow plastic and seals to IP66
• Maintenance-free gearbox of sintered steel, gearbox plate of steel
• Patented actuator–valve coupling
• Mounting column made of stainless steel; mounting bracket (for fitting the valve) of cast light
alloy
• Electrical connections (max. 2.5 mm²) with screw terminals
• Three pre-scored cable inlets for M20×1.5 (2×) and M16×1.5
• Installation position: vertically upright to horizontal, but not upside down
s/mm
mm
force
supply
1)
kg
M
Y07552
100 %
Direction
of
o
pe
r
at
i
on
2
of
0 %
0 V Output signal y 10 V
D
op
recti
i
e
n
o
on
i
t
ra
B07650
1
Valve actuator for valves: VUD / BUD, VUE / BUE, VUG / BUG, VUS / BUS and VUP
AVM 234S F132
2 / 4 / 6 14…40 2500 24 V~/= 4.1
matching with assembly for valve series: V6R / B6R
AVM 234S F132-5
AVM 234S F132-5
Positioner:
Control signal 1 0...10 V, Ri> 100 kΩ Starting point U0 0 or 10 V
Control signal 2 4...20 mA, Ri = 50 Ω Control span ∆U 10 V
Position feedback signal 0...10 V, load > 2.5 kΩ Switching range Xsh 300 mV
Power supply 24 V∼ ± 20%, 50...60 Hz Degree of protection IP 66 (EN 60529)
24 V= ± 15% Protection class III (IEC 60730)
with accessories 230 V~ ± 15%
Response time for 3-point 200 ms
Power consumption 10 W 18 VA 2)
Stroke 8…49 mm Wiring diagram A10357
Max. temperature of medium 130 °C 3) Dimension drawing M10356
Permitted ambient temperature –10...55 °C
Permitted ambient humidity < 95% rh Material declaration MD 51.377
without condensation
1) Also for 2-point or 3-point depending on the connection for 24 V~
2) Design the transformers for this value, otherwise functional faults may occur.
3) If the temperature of the medium is higher (180 °C or 240 °C), an adaptor is required (see accessor ies)
1)
2 / 4 / 6 14 2500 24 V~/= 4.1
2 / 4 / 6 40 2500 24 V~/= 4.6
Fitting instructions MV 505919
Sauter Components
7151377003 10
51.377/2
AVM 234S
Accessories
0313529 001*
Module, plug-in type, for 2-/3-point and continuous activation, additional power 2 VA
0372332 001*
0372332 002*
Auxiliary change-over contacts (2 pcs. each) 12...250 V∼
0372333 001*
0372333 002*
0372334 001*
0372334 002*
0372334 006*
0372336 180*
0372336 240*
Fitting kit for AVM 234S F132 on Sauter valves (for 0372338 002, no adaptor required)
0372338 001
0372338 002
0372338 003
0372338 004
Set of adaptors for non-Sauter valves
0372376 010
0372376 014
0372377 001
0372378 001
0372378 002
0372386 001
0372387 001
0372389 001
0372389 002
0378263 001
0386263 001
0386263 002
*) Dimension drawing or wiring diagram is available under the same number
1) This potentiometer may only be used as a voltage divider.
2) Adaptor not required for the F132-6 version
Split-range unit to set sequences, MV 505671; A09421
230 V ± 15% power supply, MV 505901
100 V to 110 V ± 10% power supply, MV 505901
Infinitely variable, min. 100 mA and 12 V, additional load 6(2) A, MV 505866
Gold-plated contacts, from 1 mA and up to 30 V; further range 3(1) A; MV 505866
Potentiometer 2000 Ω, 1 W, 24 V; installation as per MV 505894
Potentiometer 130 Ω 1), 1 W, 24 V; installation as per MV 505894
Potentiometer 1000 Ω, 1 W, 24 V; installation as per MV 505894
Adaptor 2) (required for medium between 130 °C and 180 °C, MV 505902)
Adaptor 2) (required for medium between 180 °C and 240 °C, M V 505902)
V/B6 up to DN 50 and V/BXD, V/BXE up to DN 50 with stroke 14 mm. MV 505903
V/B6 of DN 65…150 and V/BXD, V/BXE from DN 65 with stroke 40 mm. MV 505903
Conversion kit for AVM 234S F132-5 on standard actuator AVM 234S F132, MV 505903
Conversion kit for AVM 234S F132-6 on standard actuator AVM 234S F132, MV 505903
Siemens with 20 mm stroke or spindle ø10 mm, MV 505974
Siemens with 40 mm stroke or spindle ø14 mm, MV 505974
JCI DN15…150 with 14, 25 or 40 mm stroke or spindle ø10, 12 or 14 mm, MV 505975
Honeywell with 20 mm stroke, MV 506069
Honeywell with 38 mm stroke, MV 506069
LDM Typ RY113 R/M, MV P100000538
Fitting kit SAUTER-Satchwell VZF1727
ITT-Dräger, DN 15…32, MV P100000376
ITT-Dräger, DN 40…50, MV P100000376
End stop guide (required for V/BXD, V/BXE DN15…50, V/B6 DN15 with kvs ≤ 1 m3/h)
Screwed cable fitting, M16×1,5
Screwed cable fitting, M20×1,5
Operation
Depending on the type of connection (see the wiring diagram), the actuator may be used as a continuous
(0...10 V and/or 4...20 mA), 2-point (OPEN/CLOSED) or 3-point (OPEN/STOP/CLOSED) device with an
intermediate position.
The actuator's running time can be set according to the specific requirements, using switches S1 and S2.
Switches S3 and S4 are used to set the characteristic (equal percentage, linear or quadratic).
The external lever allows you to adjust the position manually. When the lever is folded out, the motor cuts
out. When the lever is folded back into place, the setpoint position is adopted again (without initialisation).
If the lever is folded out again, the actuator stays in this position.
Initialisation and feedback signal
When used as a continuous actuator, the device initialises itself automatically. As soon as power is applied to the actuator for the first time, it moves to the valve's lower limit, thus enabling automatic connection with the valve spindle. Then it moves to the upper limit and the value is recorded and saved by a
travel measurement system. The control signal and the feedback signal are adjusted to this actual stroke.
There is no re-initialisation in the event of a power failure. The values are saved.
To re-initialise, the actuator must be connected to the power supply and there must be a continuous input
signal at 3u or 3i. To trigger an initialisation, fold the lever out and back in again twice within 4 s. Both of
the LEDs will then flash red.
During initialisation, the feedback signal is inactive, or it corresponds to a value of 0. Initialisation uses the
shortest running time. The re-initialisation is not valid until the entire procedure has been completed.
Folding the lever out again will interrupt the procedure.
If the valve actuator detects a blockage, it will report this by setting the feedback signal to 0 V after approx. 90 s. However, the actuator will try to overcome the blockage during this time. If the blockage can
be rectified, the normal control function is activated again and the feedback signal is restored.
No initialisation is performed with 2-point or 3-point control. The feedback signal is inactive.
Sauter Components
7151377003 10
Connected as a 2-point valve actuator (24 V)
This type of activation (OPEN/CLOSED) can be achieved by two wires. Power is applied to terminals 1
and 2a. By applying power (24 V) at terminal 2b, the shaft extends. When the power is switched off, the
actuator moves to the opposite end position. The motor's electronic cut-out responds in the end positions
(valve limit, or when maximum stroke is reached) or in the event of an overload (no limit switches).
The coding switch can be used to set the run times. The characteristic cannot be selected in this case
(resulting in the characteristic for the valve). Terminals 3i, 3u and 44 must not be connected.
Connected as a 3-point valve actuator (24 V)
Applying power at terminal 2a (or 2b) makes it possible to move the valve to any desired position. If power is applied at terminals 1 and 2b, the shaft extends. It retracts if power is applied at terminals 1 and 2a.
In the end positions (at the valve stop, or when the maximum stroke is reached), or in the event of an
overload, the motor's electronic cut-out is activated (no limit switches). The direction of the stroke can be
changed by transposing the connections.
The coding switch is used to set the running times. In this case, the characteristic cannot be selected
(resulting in the characteristic for the valve). Terminals 3i, 3u and 44 must not be connected.
Connected (with 230 V) as a 2-/3-point or with continuous control (accessory 0372332)
The accessory module is slotted into place in the terminal compartment and then connected accordingly.
The coding switch on the board is used to select the running times. The characteristic can be selected
only in the case of continuous activation; the characteristic for the valve is applicable. On this actuator
(which has no spring return action), the switching lever is in the lower position.
Connected to a control voltage (0...10 V and/or 4...20 mA)
The in-built positioner controls the actuator in accordance with the controller output signal y.
The control signal used is a voltage signal (0...10 V–) at terminal 3u, or a current signal at terminal 3i. If a
control signal is present at both terminals (3u (0...10 V) and 3i (4...20 mA)) simultaneously, the input with
the higher value takes priority.
Mode of action 1 (mains voltage to internal connection 2a): as the output signal increases, the shaft extends.
Mode of action 2 (mains voltage to internal connection 2b): as the output signal increases, the shaft retracts.
The starting point and the control span are fixed. To set partial ranges, a split-range unit (for voltage input
3 u only) is available as an accessory (see the description below); this unit can be fitted in the actuator.
When the power supply is applied and initialisation has been carried out, the actuator moves to every
valve stroke between 0% and 100%, depending on the control signal. The electronics and the travel
measurement system ensure that no stroke is lost, and the actuator does not require re-initialisation at
intervals. When the end positions are reached, the position is checked, adjusted as necessary and
stored again. This ensures parallel running of several drives of the same SUT type. Feedback signal y0 =
0...10 V corresponds to the effective valve stroke of 0 to 100%.
If the 0...10 V control signal is interrupted in direction of action 1, the spindle retracts completely. So that
the shaft can extend (direction of action 1), a voltage of 10 V must be applied at terminals 1 and 3u, or it
is necessary to switch over to direction of action 2.
The coding switch can be used to set the characteristic for the valve. Equal-percentage and square characteristics can be produced only if the actuator is used as a continuous actuator. Further switches can be
used to select the running times (can be used for 2-point, 3-point or continuous functions).
Continuous activation can also be used with 230 V or 110 V. Note that the controller's neutral conductor
should be connected to the control voltage. The neutral conductor of the power supply should be used
only for the module.
LED indicators (dual-colour, red and green)
Both LEDs flashing red: initialisation procedure
Upper LED lit red: upper limit or "CLOSED" position reached
Lower LED lit red: lower limit or "OPEN" position reached
Upper LED flashing green: actuator running, moving towards "CLOSED" position
Upper LED lit green: actuator stationary, last direction of running "CLOSED"
Lower LED flashing green: actuator running, moving towards "OPEN" position
Lower LED lit green: actuator stationary, last direction of running "OPEN"
No LED lit: no power supply (terminal 2a or 2b)
Both LEDs flashing red and green: actuator is in manual mode
AVM 234S
51.377/3
Sauter Components
7151377003 10
51.377/4
AVM 234S
Split-range unit (accessory 0313529)
This accessory can be fitted either in the actuator itself or externally in an electrical distribution box. The
starting point U0 and the control span ∆U can be set with the help of a potentiometer. This makes it possible to operate several regulating units in sequence or in a cascade with the control signal from the
controller. The input signal (partial range) is converted into an output signal of 0...10 V.
Engineering and installation notes
The ingress of condensate or water droplets etc. along the valve spindle and into the actuator should be
prevented.
The valve is slotted straight onto the actuator and fixed with screws (no further action is required). The
actuator is automatically connected to the valve spindle. The actuator spindle is supplied ex works in the
middle position.
The housing has three pre-scored cable inlets which are broken open automatically when the cable inlet
grommet is screwed in.
The combination of stepping motor and electronics unit enables several actuators of the same type to be
run in parallel. The cross-section of the power cable's wires should be selected according to the cable
length and the number of drives. With five drives connected in parallel and a cable length of 50 m, we
recommend a cross-section of 1.5 mm2 (power consumption of the actuator × 5).
The actuator can be fitted with a maximum of one 230 V module, one additional accessory (auxiliary
contacts or potentiometer) and the split-range unit.
Fitting outdoors. If the devices are fitted outdoors, additional measures must be taken in order to protect
them from the weather.
Additional technical information
The yellow housing (consisting of the front and back sections and the connecting lid) serves merely as a
cover. The DC motor, the electronics control unit, the load-bearing parts and the maintenance-free gear
unit are accommodated in the housing. The actuator shaft and column are made of rust-proof materials.
The interior plates and the gear unit are made of steel. The valve spindle guide and the valve collar coupling are made of die-cast aluminium.
Note on ambient temperatures: if the temperature of the medium in the valve is up to 110 °C, the ambient
temperature may be up to 60 °C. If the temperature of the medium is above 110 °C, the ambient temperature must not exceed 55 °C; alternatively use accessory 0372336 180 (adaptor).
Auxiliary change-over contacts
0372333 001 Switching capacity max. 250 V~, min. current 250 mA at 12 V (or 20 mA at 20 V)
Switching capacity max. 12...30 V=, max. current 100 mA
0372333 002 Switching capacity max. 250 V~, min. current 1 mA at 5 V
Switching capacity max. 0.1...30 V=, current 1...100 mA
Even if used only once above 10 mA or up to 50 V, the gold coating will be
destroyed. The switch can then be used only for higher switching outputs.
Warnings
• If the temperature of the medium in the valve is high, the actuator columns and the shaft
may also reach high temperatures.
• Additional protective precautions must be taken if a failure of the final control element
would cause serious damage.
CE conformity
EMC Directive 2004/108/EC Low-Voltage Directive 2006/95/EC
EN 61000-6-2 *) EN 60730-1
EN 61000-6-4 EN 60730-2-14
Over-voltage category III
Degree of pollution III
*) HF immunity restriction. Feedback signal between 80 MHz and 1000 MHz: criteria B, otherwise criteria A
Sauter Components
7151377003 10
Desired
character.
curve
Switch coding
Characteristic
curve for valve
v
Characteristic
curve for drive
Stroke
AVM 234S
Effective on valve
v
51.377/5
1 2 3 4
On
Off
Equal
percentage
v
Stroke
Stroke
Signal
= %
Signal
v
1 2 3 4
On
Quadratic
Off
Stroke
v
Stroke
Signal
v
2
x
Signal
1 2 3 4
On
LinearEqual
Off
Stroke
v
Stroke
Signal
v
lin
Signal
1 2 3 4
On
Off
percentage
v
Stroke
Stroke
Signal
= %
Signal
v
1 2 3 4
On
Linear
Off
Stroke
Signal
lin
Signal
Run time
per mm
2s
4s
6s
= factory setting
Switch coding
1 2 3 4
1 2 3 4
1 2 3 4
= factory setting
B10376
Run time for
14 mm stroke
On
Off
On
Off
On
Off
On
Off
28s ± 1 40s ± 1 80s ± 2
56s ± 2 80s ± 2 160s ± 4
84s ± 4
Run time for
20 mm stroke
Run time for
40 mm stroke
120s ± 4 240s ± 8
B10377
Sauter Components
7151377003 10
51.377/6
MM
01/02
3u3u443i
Module
Module
A
VM234S
Module
VM234S
Wiring diagram
AVM 234S
Accessories
03
0372332001
Dimension drawing
18,5
b
57
60 230
c
3u3u443i
A10587a
230V~
230V~
A
230V~
A10564a
372334 372333
4 5 6 7 8 9
A10376
10 11 12
0%
A01363
Type a b c
AVM 234S F132 64 289 44
AVM 234S F132-5 58 289 38
AVM 234S F132-6 78 382 60
Printed in Switzerland
Right of amendment reserved
© Fr. Sauter AG, CH-4016 Basle
7151377003 10
a
90
M10356a
0372336 180
0372336 240
T (°C) a (mm) b (mm)
0372336
180 69,4 60
180
240
240 109,4 100
a
b
M10217
Sauter Components
Loading...