14
Drive the actuator to the open position and write down the resistance
value corresponding to the 100% position.
Come back to the closed position and check that, for the 0% position, the
resistance shows a close to zero repeatable value.
Note: If actuator is equipped with 2 potentiometers, each potentiometer
is set independently of the other.
Signal inversion:
To inverse the signal variation direction, invert potentiometer wires
on the actuator terminal board (e.g. for a connection on 16/17/18, invert
16 and 18).
8 «TAM» POSITION TRANSMITTER (OPTION)
The TAM transmitter delivers a 0/4 to 20 mA signal linearly proportional
to the angular position of the valve.
Electric connections
Refer to the wiring diagram supplied with the actuator. See also some
typical wiring examples below.
Filtered or stabilised power supply should be provided within the 12 to
32 VDC range.
Maximum admissible ohmic load values are given in the table :
Signal direction inversion
The TAM transmitter, when supplied with a standard actuator, provides
a signal that rise from close position to open position, the standard
opening direction being counter-clockwise.
If an opposite signal variation is required, simply move 2 jumpers on the board
near the potentiometer.
Direct signal : jumpers on 1-3 and 2-4
Reversed signal : jumpers on 1-2 and 3-4
Energy Supply
DC (VOLT)
Max. admissible
load Ohm
12 150
24 750
30 1050
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