SAUTER Linear valve actuator AVF 124/125 series AVF124S

AVF 124: Actuator with spring return
Improving energy efficiency
Electric cut-off to save energy
Features
• Activation of through and 3-way valves of the VUN/BUN, VUD/BUD and VUE/BUE series, DN 15 to
DN 50. For controllers with a switching output (3-point control)
• Spring return facility moves the unit to the end position in the event of a power failure or when a
limit controller is activated
• Stepping motor with electronic control unit and electronic, force-dependent cut-off
•Maintenance-free gear unit
• LED display/indicators
• Coding switch for changing the running time
• Electrical connections (max. 1.5 mm²) with screw terminals
• Cable inlet M20 × 1.5
• Fitting vertically upright to horizontal, not suspended
Technical data
Power supply
Power supply 230 V~, ±15%, 50…60 Hz
Power consumption 4 W, 7.6 VA
Parameters
Running time of motor 60/120 s
Running time of spring 18 s ±10
Actuating power 500 N
Actuator stroke 0…8 mm
Response time 200 ms
Ambient conditions
Admissible ambient temperature 5…60 °C
Temperature of medium Max. 100 °C
Admissible ambient humidity < 95% rh, no condensation
Construction
Weight 2.4 kg
Housing Lower section black, cover transpar
ent
Housing material Fire-retardant plastic
Materials for gearbox
and fitting bracket
Pressure-cast zinc
Standards and directives
Type of protection1) IP 54 (EN 60529)
Protection class II (IEC 60730)
EMC directive 2004/108/EC EN 61000-6-1. EN 61000-6-2
EN 61000-6-3, EN 61000-6-4
Low-voltage directive 2006/95/EC EN 60730-1, EN 60730-2-14
Over-voltage categories III
Degree of contamination 3
Software A (EN 60730)
Mode of operation Type 1 AA (200ms, EN 60730)
Overview of types
Type Reset function
AVF124F130 Actuator spindle retracted
AVF124F230 Actuator spindle extended
A AVF124F130: Valve normally closed (NC) with: VUD, BUD, VUE, BUE, VUN, BUN
1) Type of protection IP 54 only with cable gland
Product data sheet 51.367
Right of amendment reserved © 2015 Fr. Sauter AG 6.1 1/4
AVF124F130
AVF124F130
AVF124F230
Product data sheet
2/4
51.367
A AVF124F230: Valve normally open (NO) with: VUD, BUD, VUE, BUE, VUN, BUN
Accessories
Type
0370881001
0370882001
0370882006
0370883001
0370883006
0372249001
Description
Auxiliary change-over contacts, single
Auxiliary change-over contacts, single, combined with pot. 2000 Ω, 1 W; 24 V
Auxiliary change-over contacts, single, combined with pot. 1000 Ω auxiliary change-over con
tacts, 1 W; 24 V
Potentiometer, 2000 Ω, 1 W; 24 V
Potentiometer, 1000 Ω, 1 W; 24 V
Adaptor required when media temperature > 100 °C (recommended for temperatures < 10 °C)
0372460001
Cable screw fitting (plastic M20 × 1,5) incl. locking nut and seal
A Auxiliary change-over contacts: Infinitely variable, admissible load 2(1) A, 12…250 V~, min. load 250 mA, 12
V~
Description of operation
When the device is restarted, or when it is started after the reset is triggered, there is a waiting time of
45 s until the reset function is available.
When voltage is applied to terminals 1-2a or 1-2b, the control unit to be activated is moved to any
desired position by means of the coupling rod. The coupling rod moves out or the valve opens when
voltage is applied to terminals 1 and 2a, and it moves in when the electrical circuit is closed via termi
nals 1 and 2b. In the end positions (limit stop in valve or maximum stroke reached) or in the case of
an overload, the electronic motor cut-off is activated (no limit switches).
Direction of the stroke changed by transposing the connections.
If the supply voltage fails or is switched off, or if a monitoring contact at terminal 21 is activated, the
holding magnet releases the gear unit and the preloaded spring moves the actuator to an end posi
tion, depending on the model of the actuator. The reset function is braked depending on the speed,
so that no pressure surges can occur in the supply line.
The green LED indicator lights up as long as there is a command pulse on terminal 2a or 2b. When
the limit stops are reached, the LED flashes at intervals of approx. 2.5 s.
During normal operation, the yellow LED indicator lights up continuously and goes out after the reset
function has been triggered (no power at terminal 21). When there is power at terminal 21 again, the
yellow LED flashes again for approx. 40 s. During this time, the reset function cannot be deactivated
again, so that the actuator can definitely reach the end position.
Intended use
This product is only suitable for the purpose intended by the manufacturer, as described in the “De
scription of operation” section.
All related product documents must also be adhered to. Changing or converting the product is not ad
missible.