Blue Sky Solar Boost 3024iL - Manual (Page 10)

Blue Sky Energy - Solar Boost 3024iL
9
AUXILIARY BATTERY CHARGE – DIP #4 OFF
The auxiliary charge function is used to charge an auxiliary battery of the same voltage as the primary battery. If the primary battery is charging in
Acceptance or Float, up to 2A is diverted to the auxiliary battery at roughly the same charge voltage. Auxiliary battery charge is disabled during bulk or equalization.
Use 14awg wire to minimize voltage drop and 25A over current protection. Auxiliary battery negative must connect to primary battery negative.
AUXILIARY OUTPUT WIRING
2A Auxiliary Battery Charger 20A Load Controller
FIGURE 4
LOAD CONTROLLER – DIP #4 ON
The load controller can deliver up to 20A of continuous output from the battery. Default settings are for LVD operation with ON at V
BAT
≥12.6/25.2V, and
OFF at V
BAT
≤11.5/23.0V, which can be changed using the IPN-ProRemote. Operation can also be based on net battery amp-hours if an IPN-ProRemote is
present. The ON/OFF condition must be valid for 20 seconds before switching will occur. If the higher/lower values are reversed the output control logic is inverted.
Load negative must connect to battery negative.
¾ CAUTION: 25A maximum over current protection for load control output must be provided externally. If the load control output is
configured to operate based on net battery amp-hours, configure ON/OFF voltage thresholds as well. If amp-hour from full data
is not available, voltage based operation will resume. Voltage or amp-hour ON/OFF thresholds must not be the same value or
improper operation will result.
DUSK-TO-DAWN LIGHTING CONTROL – DIP #4 ON
An IPN-ProRemote with software version V2.00 or later is required to enable lighting control. Refer to IPN-ProRemote operators manual for lighting control
setup instructions. Variable time settings are available to turn lighting ON after Dusk (Post-Dusk timer) and/or ON before Dawn (Pre-Dawn timer). If both timers are
set to DISABLED (factory default), the lighting control feature is disabled. If either the Post-Dusk or Pre-Dawn timers are set to a time value the lighting control
feature is enabled. When lighting control is enabled the auxiliary output is controlled by both the normal load control function and the lighting control function such
that whichever function wants the auxiliary output OFF prevails.
Dusk or night time begins when the charge control system turns OFF which occurs when PV module current drops below ≈50mA at battery voltage. Dawn
or day time begins when the charge control system turns ON which occurs when PV module current rises to ≈100mA at battery voltage. If the Post-Dusk timer
was set to 1.0 hour and the Pre-Dawn timer was set to 2.0 hours, lights would turn ON at Dusk, remain ON for one hour, and then turn OFF. Two hours before
Dawn the lights would again turn ON and remain ON until Dawn. For full Dusk to Dawn lighting set the Post-Dusk timer to 20 hours. Lights will always be OFF
when the charge control system is ON.
When the 3024 first receives battery power it does not know when Dawn is expected to occur. As a result Pre-Dawn control does not operate for the first
night. Once a night time period of 4 hours or more is detected this night time period is stored and Pre-Dawn control will operate. Each subsequent night time period
greater 4 hours is added to a filtered average of night time.
Equivalent Circuit
Battery
Load +
20A Maximum
20A
Load
2A
Charge
2A Current
Limiter
Bat+
25A
25A Maximum
Auxiliary Output LED