CATCH Power SOLAR RELAY
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Installation Manual - Page 19
INSTALLATION
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Configuration
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Export Control
In order to configure the solar relay to use the Export Control mode follow these
steps.
Minimum On Time:
Specifies the minimum
time the load must stay on once it has been
turned on.
Above Threshold:
The number of watts to be
exporting from the measuring point. The
Solar Relay will turn the load on if exporting
reaches this threshold.
Above Time:
The number of minutes the
Above Threshold needs to occur before the
load turns on.
Below Threshold:
The number of watts to be
exporting from the measuring point. The
Solar Relay will turn the load off if exporting
goes below this threshold.
Below Time:
The number of minutes the
Below Threshold needs to occur before the
load turns off
1)
Setup one of the four system overrides to be
Export Controlled
.
2)
Configure the Export Control parameters as described below.
Example:
A site has 6kw of solar, and wish
to turn a 1.5kW heat pump on
when the solar export is above
3kW for 5 minutes. The customer
does not want the load to be
powered from any imported
energy.
Settings:
Minimum on Time: 0
Above Threshold: 3000
Above Time: 5
Below Threshold: 0
Below Time: 0
You must always ensure the difference
between the Above and Below thresholds are
greater than your load size. For example if
you are powering a 3kW load the Above
Threshold must be 3kW bigger than the
Below Threshold otherwise contactor
oscillations will occur.
