Vcs Ii User Configuration - Bergey VCSII Owner's Manual

WARNING: Confirm factory default settings are appropriate for you battery bank prior to
commissioning to avoid potential battery damage.
The VCS II user configurable parameters are stored on the SD card along with other files which should
not be altered without consultation of Bergey WindPower Co. The file user_cfg.txt is tab delimited and
allows setting all of the configuration settings. The file may be easily configured with any text file editor.
"Output Current Limit": [Adc], Factory default is "200". This setting should not exceed 200
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amps, but may be reduced to allow use with smaller battery banks.
"Battery Voltage Set-point": [Vdc], Factory default is "56.4", for open celled lead acid
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batteries. The voltage regulation is a constant voltage scheme, there are no bulk or float
settings.
"Battery Equalization Voltage Set-point": [Vdc], Factory default is "62.0". The equalization
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Voltage is settable, and if a battery temperature sensor is present, the equalization voltage is
temperature compensated. Equalization time is dependant on the "Battery Equalization
Completion Integral".
"Battery temp correction slope": [Vdc/degC], Factory default is "-0.12", for lead acid batteries.
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Battery temperature compensation operates if an optional 10kΩ battery temperature sensor is
installed. There is only a slope correction vs temperature.
"Battery Equalization Completion Integral": [V*hrs], Factory default is "0.5", essentially
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deactivating the equalization feature until the installer changes this value. Consult your battery
manufacturer. This value is defined as Volt*hours. For example at a setting of "4.0", once
equalization is engaged, the batteries will be held above the nominal voltage either 1 volt for 4
hours, or 2 volts for 2 hours, etc. This allows for the intermittent nature of the wind, and as
soon as the totalized Volt*Hours are completed the controller will return to its normal Battery
Voltage Set-point.
Rev: 0
VCS II User Guide – Bergey WindPower Co.

VCS II User Configuration

June 17, 2016 7