Manual ST3/2022 controller

Manual ST3 controller 2022

This operating instruction applies to:

ST3Circuit 80 x 95 x 35ST3FCX A2 STD
ST3Fire-retardant plasticRAL 7035100 x 100 x 50ST3FCX Z2 STD
ST3AluminumRAL 7035100 x 100 x 50ST3FCX Z2 STM
ST3/DINCircuit115 x 85 x 50ST3FCX D2 STD
ST3+PRX92Circuit+circuit for sensor NPN/PNPRAL 7035100 x 100 x 50ST3P92 Z2 STD


  1. The controller is guaranteed for a period of 6 months from the date of the invoice.
  2. The guarantee covers the free replacement or repair of components parts that are defective at origin for manufacturing errors.
  3. The guarantee is not valid for damage caused accidentally due to improper use or negligence and in case of alterations or repair carried out by unauthorized persons. Design and specifications could be subjected to change without notice.



This equipment conforms with ecc directive 2014/30/UE (EMC – Electromagnetic Compatibility) and directive 2014/35/UE (LVD – Low Voltage Directive)


Replacement policy

Please contact us through our contact page – Contact


Safety instructions

Indicates an immediate threatening danger.

Non-compliance with this information can result in death or serious personal injuries (invalidity).



Indicates a possibly dangerous situation.

Non-compliance with this information can result in death or serious personal injuries (invalidity).




Indicates a possibly dangerous situation.

Non-compliance with this information can result in damage to property or .light to medium personal injuries.




Indicates general notes, useful operator tips and operating recommendations which don’t affect safety and health of the personnel.




General instructions

Before connect the equipment to the mains socket, make sure that the nameplate data match those of the mains power supply.

Only use this equipment in accordance with the porpouse for which it is designed; i.e. for regolation of the amplitude of an electromagnetic vibrator feeder. Any other use is to considered improper, therefore hazardous.

The Manufacturer cannot be held liable for any improper, incorrect or unreasonable use of the equipment, switch it off and do not tamper with it. If repair is needed, please contact the Manufacturer’s Technical.

Service Centre only, as they use original spare parts. Failure to observe the above the recommendations could impair the safety of the equipment.

All operations regarding adjustement, measurement and testing when required, must only be carried out by authorized and qualified personnel.

The Manufacturer shall accept no liability for damage to persons, animals or objects caused by work on the equipment carried out by unauthorized and unqualifield personnel.

Before switching on the equipment, connect the mains voltage, conforming to the current regulation, and the vibratory feeder.


Verifying that the installation has an appropriate ground wiring system.





NOTE : Don’t use the apparatus in proximity of subject zones to vibrations, or in acid and humid working environment

If vibratory feeder works bad or doesn’t work:

  • Check electric wires, to check regolation MIN/MAX.
  • Swicht OFF voltage and to check the fuses and, this case, to check current MAX (ampere) in the vibrator.


Technical characteristics

Circuit Type: ST3FCDegree Of Protection: Ip55in Box (Only Circuit Ip00)
Supply Voltage: 115 Or 230V ± 10% 50/60HzPosition Of Assemblage: Horizontal Or Vertical.
Consumption: 1,5 W MaxDegree Of Pollution: 2
Current Max: 3/4A (Rms)Temperature Of Storage: -15 °C / + 80 °C
Load Min.: 50Ma RmsTemperature Of Operation: -5 °C / + 55 °C
Potentiometer Of Reg.: 100K Ohm LinearRange Of Relative Humidity: 80% Till to 31°C
Freq. Of Vibration: 3000/6000V/M (50Hz)
3000/7200V/M (60Hz)
Installation Class: Ii
Time Ramp: 0,2 Sec. Or 2 Sec. (Selectable)Altitude: Till to 2000 Meters
Regulation Min.: 80V ± 30%European Norms: EMC CE
Input On/Off: Free Contact - Signal Voltage 0/24VWarranty: 1 Year (from date on circuit)

Wave Forms



Description waveforms figures (above)

Supply controller (yellow)
Output vibrator (blue)
Frequency: 50 Hz – 3000 V/m (vibrator)

Figure statististics

  • Fig. 1 : Output V/max 216V
  • Fig. 2 : Output V/medio 160V
  • Fig. 3 : Output V/min 52V


Particular instructions

Before give voltage to the controller connect the supply voltage (clamps 2-3 CONN1), verifying that the installation has an appropriate ground wiring system and the vibrator (clamps VIBRATOR – CONN 2) of the connector (1-4 ground).

According European Norms EMC the controller have a line-filter with leakage current to ground less 1 mA.
To adjust intensity of vibration of the vibratory feeder, turn the adjustment knob (potentiometer 100K) on the box.



Regulation MIN/MAX

To adjust the Min./Max voltage of the vibratory feeder, proceed as follows :
MIN REG.: Turn the potentiometer to minimum, then set the minimum vibration by means of relative trimmer TR1.
MAX REG. : Turn the potentiometer to maximum, then set the maximum vibration by means of relative trimmer TR2.
N.B. : Use a small bladed screw driver in order not to damage the trimmer. Turn it in vertical direction respect to the PC board.



The vibratory feeder can be switched off by contact without voltage, using the auxiliary ON/ OFF input.

Start Ramp

Is possible to change the time of the start ramp (slow 1 sec or fast 0,1 sec) by DP2.

                               3000/6000 V/m

Is possible to change the frequency of vibration 3000V/m-50Hz (3600V/m-60Hz) or 6000V/m- 100Hz (7200V/m-120Hz) by DP1; before switch off the voltage.


Green LED

Green Led indicates Voltage ON- Fuses intact and signals damages to the entry stage of the stabilizing module.

Double Speedy

Is possible (on request) to have nr.2 speed (high and slow speed ) with 2 potentiometers.



If you use only the electronic circuit (IP00) insert and cable it in a box that could guarantee an excellent safety degree respecting the European regulation in force and isolate the terminals of the potentiometer with the rubbers provided.

Decline all responsibility for damage caused by improper use of the circuit





1. All controllers are stabilized
2. Other voltage on request
3. With circuit PRX92-PRX99 inside
4. With circuit PRX07 inside


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