Varifan SVIM-1LE, Руководство пользователя

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Page 27
3.3 AUTOMATIC CALIBRATION
Auto-calibration is a feature of the SVIM-1
LE
that is only
operational when in time mode ( DIP switch #1 is OFF).
When in potentiometer mode, auto-calibration is always
deactivated. This function enables the SVIM-1
LE
to
reevaluate its position and precision either by opening
or closing completely the curtain. The Automatic
Calibration is set with parameters A.CAL and dir.C
The parameter dir.C tells the SVIM-1
LE
to carry out
auto-calibration in opening or in closing direction. The
SVIM-1
LE
will reposition the inlet/baffle precisely after
a number of changes in direction defined by the user
(parameter A. CAL, section 3.2.3.5). The SVIM-1
LE
can also reposition the inlet/baffle when it reaches a
limit of Lo or Hi.
CAUTION:
For tunnel ventilation the air inlet auto-calibration
must be in opening position, in order to avoid curtain
jam in closing position. Parameter Dir.C= open.
CAUTION:
If the application requires the air inlet never to go
beyond the limits Lo or Hi, you must use an actuator
with feedback potentiometer.
CHAPTER 3 - USER’S GUIDE
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