Edificio Genebre. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
FECHA DE REVISIÓN: 07/05/2019 NUMERO DE REVISIÓN: 2
1. Product Description
The Digital Positioner is a fitting the electric actuator to convert the actuator in a self-
control valve positioner.
The Digital Positioner is a modulus with a microprocessor (CPU) which manages digitally
the analogical input and output and compare them with the position of the actuator to
establish an uniform relation.
The analogical inputs are sent to CPU where they are processed for his continuous
comparison with the position of the actuator, this allows to obtain a very high sensitivity
next to a very high repetitivity of the position (see characteristics).
The Digital Positioner in communication with the electronic system of the actuator
provides an integral management of the motion on the actuator.
Sign position input is converted to a digital numerical value and is continuously compared
with the position of potentiometer which is mechanically fitted to the valve shaft.
The programme in the microchip makes all the necessary calculations to determine which
way the motor should turn so that the potentiometer position and the valve corresponds
to the position, it keeps the motor in stopped position until it receives an input signal.
2. Safety Instructions
The scope of this manual is to enable a competent user to install, operate, adjust and
inspect a Digital Positioning System to GE quarter turn electric actuator. These
instructions must be observed, otherwise a safe operation of the actuator is no longer
warranted.
As electric device, during electrical operation certain parts inevitably carry
lethal voltages and currents (ELECTRICAL RISKS). Work on the electrical
system or equipment must only be carried out by a skilled electrician himself or
by specially instructed personnel, in accordance with the applicable electrical
engineering rules, health and safety Directives and any other
national legislation
applicable.
