CENTORK.ESPECIALISTS IN VALVE ACTUATION  
  MODULAR DESIGN: ANY APPLICATION IN OUR HAND  
  CENTORK ELECTRIC ACTUATOR FEATURES  
  CENTORK ELECTRIC ACTUATORS 400/410 SERIES  
  CENTORK ELECTRIC ACTUATORS RANGE  
  CENTORK DIGITAL ACTUATORS 400/470 SERIES  
  CENTORK DIGITAL ACTUATORS 460-470 SERIES  
  CENTRONIK INTEGRAL CONTROL UNIT  
  ELECTRIC ACTUATOR CONTROLS  
  QUARTER-TURN-480 SERIES  
 
ELECTRIC ACTUATOR CONTROLS

The CENTORNIK unit is designed to cover the need to reduce the high costs of installation of the controls needed for the conventional Centork actuators. Following the trend to move the ‘intelligence’ as close as possible to the final control device in the field, this can be summarized in the next diagram:

CENTORK ACTUATOR EXTERNAL CONTROL
If an external control is used the following has to be considered:
-Reversing contactors or other motor power control devices for each actuator.
-Control device (Hard+Software ) to manage the control signals and the reversing contactors.
-Contorl signals (Troque & limit switches ) wiring. Power supply wiring.
-Additional power supply for the internal options (TPS, heater)
-If a local control (pushbutton) is needed, additional wiring to the control cabinet has to be considered.

CENTRONIK ACTUATOR INTEGRAL CONTROL
In the actuators with integral controls all these elements are integrated within the Centronik unit. This makes everything simpler:
-Only power supply is needed.
-The control is internal, so only the remote control signals are needed: OPEN/CLOSE and, if needed, the actuator status signals.
-The local control (pushbuttons) is included.
-The internal electronics supply (contactors, heater, TPS…) are internally supplied.

CENTRONIK + FIELDBUS
If the CENTRONIK actuators are integrated in a FieldBus, the costs are further reduced and the quantity of information transmitted can be even higher. All the signals from the Master are transmitted using a two wire series communication. Different standard fieldbuses can be mounted in the actuators.