KWS Electronic VAROS 109, Руководство пользователя

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Chapter 6 - Measuring range
10911 V01.06
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Then open the “Limit east” function. The limit is saved in the positioner when you press
ENTER
to
confirm.
Limit west:
This allows you to set a western limit that the positioner cannot pass. To do so, proceed as follows:
First use the “Drive” function to move the positioner to the position to be set as the western limit.
Then open the “Limit west” function. The limit is saved in the positioner when you press
ENTER
to
confirm.
Limits off:
This function allows you to cancel the east and west limits of the positioner. The motor can then
travel back and forth between its mechanical limits.
Save:
This function allows you to save a position reached using the “Drive” function in one of the position
memory spaces 0-99.
Position 0 is reserved for the reference position of 0 degrees. When called up, some positioners are
subject to a special function (e.g. Enable limits).
Go to:
The “Recall” function allows you to open positioner positions that were previously stored using the
“Save” function. The positioner then turns to the saved position. Position 0 corresponds to the
reference position of 0 degrees. The last position accessed is displayed in the LNB window after “P”,
e.g. “P03”. This position is incorporated into the tuning memory. As a result, various orbital positions
can conveniently be recalled from the tuning memory. There is no need do so indirectly via the
Positioner -> Go to
menu.
6.5.2.4 DiSEqC V2.0 control
LNB
->
DiSEqC
->
V2.0
activates the DiSEqC control V2.0. The difference from V1.0 is the
additional feedback query of a controlled DiSEqC component. When the device controls a
multiswitch with DiSEqC V2.0, it sends an answer back to the device. The instrument evaluates this
feedback and reports “
DiSEqC reply correctly received
” if successful, or “
DiSEqC reply
incorrectly received
” if there is an error.
6.5.3 UNICABLE
The UNICABLE version (satellite signal distribution over a single coaxial cable distribution network) is
a variant of the DiSEqC control and corresponds to DIN
EN 50494. With this system, the desired
transponder is converted to a fixed frequency (centre frequency of the UB slot or bandpass) in the
UNICABLE unit (LNB or multiswitch). The information co-ordinating transponders and UB slots is
transmitted via the special DiSEqC command to the UNICABLE unit. The standard supports up to 8
UB slots. This allows up to 8 receivers to be operated on 1 cable.
The UNICABLE message contains the following information:
SCR address, horizontal and vertical polarisation, low or high band, and the transponder frequency
to be set.
The following control routine is used in this device:
With UNICABLE systems, the signal-generating receiver generates a high DC level as it transmits,
which is added to the UNICABLE message (special DiSEqC command).
After transmitting the UNICABLE message, the receiver returns to an idle state, in which a low DC
level is generated. The receiver must return to a low DC level so that the system is available for other
receivers.
The measuring receiver uses 14 V for the low DC level and 18 V for the high DC level.