Configuring the control stages
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47
Cool
– the relay controls a cooling element and switches on when the temperature rises above
the
temperature set point
. An example of a cooling element is a single-speed fan. Temperature-
based duty cycles are also included in this configuration.
Curtain
– the relay controls a cooling element called a curtain machine. Curtains require one
relay for opening and one for closing.
Duty Cycle
(time-based) – the relay controls an element that operates for specific durations (
on
duration
and
off duration
) during certain hours of the day. An example of a time-based duty
cycle element could be a feed auger.
Timed Event
– the relay controls an element that switches ON or OFF at certain hours of the
day, regardless of the temperature or other conditions. An example of a timed event element
could be lights.
Variable DC outputs
If you have a Variable DC Expansion Kit installed in the Supra, you can configure an additional four
variable stages. The variable 0 to 10 VDC outputs have the same options as the normal variable
stages.
For more information about the expansion kit, read
Slave units
If you have Single-Phase Slave (PSU-20) units connected to the Supra, you do not need to configure
any additional items. When a PSU-20 is connected to variable stage 3 (
VR3
), it follows the
configuration and settings for variable stage 3. When connected to variable stage 4 (
VR4
), it follows
stage 4.
For more information about Single-Phase Slaves, read
Configuring variable stages
The four variable stages (
VAR1
to
VAR4
) control elements that operate with gradually increasing
voltage, such as variable speed fans, or gradually decreasing voltage, such as heat mats.
In
crea
sed
s
peed
Increase voltage
Variable-speed fan example
Dec
rea
sed
h
ea
t
Decrease voltage
Heat mat example
Temp
era
tu
re
Temp
era
tu
re
Increase voltage
Содержание Supra-RS
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