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Bernard Controls AQ SWITCH 150-1000 Guia De Inicio Rapido página 24

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Idiomas disponibles

Idiomas disponibles

Signal direction inversion
If the TAM transmitter is fitted on a counter-clockwise closing
actuator, it provides a signal that rises from closed to open positions.
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
How to set TAM
You always must start by setting the 0/4mA setting.
1. Connect a milliampermeter with or without load to read the
output current.
2. Drive actuator to the position corresponding to the 0/4 mA.
As a standard, it is the position at the end of operation in
clockwise direction, which is CLOSED position.
3. While holding the pinion located just under the plate marked
«0% position», adjust the potentiometer turning its screw so
that you reach the range where the current is at its minimal
value.
4. Turn the screw backwards to find the range where the
current starts to regularly increase.
5. Turn again the screw backwards and stop as soon as the
minimum value determined at pt. 3 is reached.
The potentiometer is then positioned at the beginning of its
track.
6. Precisely adjust the 0/4mA using the TAM screw marked
"0/4mA".
7. Drive the actuator to the position corresponding to the 20
mA.
As a standard, it is the position at the end of operation in
counter-clockwise direction, which is OPEN position.
8. Turn the screw marked "20mA" in order to read exactly 20
mA on the milliampermeter.
9. Come back to the closed position and check that for 0%
position, the signal current shows a close to 0/4 mA and
repeatable value.
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