Clipsal C-Bus Bedienerhandbuch Seite 103

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1250SM0904R10/09 C-Bus™ Basic Programming
10/2009 C-Bus™ Products Training Course
© 2009 Schneider Electric. All Rights Reserved. 97
The Turn On Threshold sliders, allows you to set Turn On points for each
relay channel. Since a relay is controlled by a group address, the group
address can still be dimmed up and down, which controls a relay channel as
follows:
If the group address is OFF, the relay channel is OFF.
If the group address is not OFF (Level 001 or 1%), the relay channel is
ON.
Setting a Turn On Threshold by using the sliders, allows you to specify at
what percentage of a group address you want the relay channel to turn on
at. The image below has a Turn On Threshold of 40%. You can see that:
While the group address level is between 1% and 39% the channel is
OFF.
While the group address level is between 40% and 100% the channel is
ON.
Turn On Thres hold
0
20
40
60
80
100
012345678
8 Second Ramp Rate
Group Address Level (%)
40% Turn On Threshold
Channel is OFF
Channel is ON
Figure 77 - The state of a group address as it ramps through the Turn
On threshold
Recovery Tab
The Recovery tab affects the behaviour of each relay channel on power up.
If the C-Bus relay loses it mains power, the unit will shut down. When mains
power is restored to the C-Bus relay, the channels will (by default) restore to
the previously known levels as shown in the figure below.
By removing the tick from a relay channel’s check box, the following
behaviours may be programmed into each individual channel, after mains
power is restored:
Turn ON (100%)
Turn OFF (0%)
Set Level using the Slider (1% to 99%).
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