Blue Sky Solar Boost 2512iX-HV - Manual (Page 11)

Installation and Operation Manual
10
TROUBLESHOOTING GUIDE
SYMPTOM PROBABLE CAUSE ITEMS TO EXAMINE OR CORRECT
Completely dead,
optional display blank No battery power Battery disconnected, overly discharged, or connected reverse polarity. Battery powers the 2512,
not PV.
Unit will not switch to a
Charge ON (charge
status indicator OFF),
Remote display if
attached turns ON. PV disconnected or low in voltage
PV reverse polarity
IPN network address set wrong
Microprocessor lockup
PV must supply 0.10 amps at greater than battery voltage to begin charge.
Reverse polarity PV will cause front panel to heat.
A single unit must be set to IPN network address 0 (zero). One unit of a multi-unit network must
be set to IPN network address 0 (zero), AND all other units must be set to different addresses.
Momentarily remove all power (battery & PV) to reboot.
Charge status indicator
ON., but no output
charge current Battery voltage greater than charge voltage
setpoint
Battery voltage too low
PV- connected to BAT- external to controller
This is normal operation. Output is off due to high battery voltage which may be caused by other
charging systems.
Battery voltage must be at least 9V for the 2512 to operate.
PV- & BAT- must be separate for proper operation. PV- must receive earth ground via shunts
inside the 2512 which internally connect PV- to BAT-. External connection prevents proper
operation of current measurement system.
Charge status indicator
blinks rapidly System in equalize mode Disable equalize via IPN-ProRemote, or by turning DIP switch #4 off.
Charge OFF at high
ambient temperature System temporarily shuts down due to high
heat sink temperature Improve ventilation or reduce PV power. Sufficient ventilation to prevent over temperature shut
down will improve reliability. See Technical Bulletin #100206.
Charge current is lower
than expected, PV
current may be low as
well Battery is highly charged
Worn out or dissimilar PV modules
Low insolation
PV- connected to BAT-
Normal operation, current is reduced if in Absorption or Float to control battery voltage.
Replace, or use as is.
Atmospheric haze, PV’s dirty or shaded, sun low on horizon, etc.
PV- & BAT- must be separate for proper operation. PV- must receive earth ground via shunts
inside the 2512 which internally connect PV- to BAT-. External connection prevents proper
operation of current measurement system.
MPPT Current boost is
less than expected
PV maximum power voltage (V
MP
) is not
much higher than battery voltage, leaving
little extra power to be extracted
PV’s hot
Worn out or dissimilar PV modules
PV’s with low V
MP
. PV’s with V
MP
≥ 17V work best, PV’s with <36 cells tend to work poorly.
Excessive PV wiring voltage drop due to undersize wiring, poor connections etc.
Battery is nearly charged and battery voltage is high. Output during MPPT operation is “constant
power” such that higher battery voltage reduces charge current increase.
V
MP
and available power decrease with increasing PV cell temperature. Cooler PV’s will produce
greater boost. It is normal for % increase to drop or even go to zero as PV temperature rises.
Replace, use as is, or use different controller for different PV modules.
Auxiliary battery not
being charging Not configured for auxiliary battery charge
Primary battery not highly charged
Load on Auxiliary battery too high
Confirm dip switch #3 is OFF.
Auxiliary battery will not receive charge unless primary battery is in Absorption or Float.
Maximum auxiliary charge current is roughly 2 amps. Load may need to be reduced.
System appears OK,
but will not correctly
switch between Bulk,
Absorption & Float
Not set for 3 stage charge
Will not switch out of Bulk and into
Absorption or Float
Will not switch from Absorption to Float
Double check Float voltage setpoint.
Battery is so discharged that available net charge current cannot bring battery voltage up to the
desired charge voltage setpoint. PV power may be too low or loads too high.
Battery not fully charged. Unit will not switch to Float until battery voltage remains at the
Absorption voltage setpoint continuously for the Charge Time period (or net battery current drops
to the Float Transition Current setpoint if using IPN-ProRemote).
Load control not
working properly Auxiliary output not set for load control
Output may have shut off due to low battery
charge
ON/OFF thresholds set incorrectly
Confirm dip switch #3 is ON.
Load will shut off if battery voltage drops below OFF threshold (default 11.5V). Once shut off, the
load will not come back on until battery voltage is above ON threshold (default 12.6V).
Correct ON/OFF threshold settings.
Dusk-to-Dawn feature,
lights will not turn ON or
remain ON Auxiliary output not set for load control
Output may have shut off due to low battery
charge
Charge control system ON
Timers set incorrectly
Valid night time period not seen
Confirm dip switch #3 is ON and Dusk-to-Dawn enabled.
Load will shut off if battery voltage drops below OFF threshold (default 11.5V). Once shut off, the
load will not come back on until battery voltage is above ON threshold (default 12.6V).
Lights will not turn on if charge control system is ON and charging as this is day time.
Check time settings Post-Dusk or Pre-dawn timer.
Pre-Dawn lighting will not operate until a valid night time period of ≥4 hours detected. If PV was
removed/reconnected, night time period may be inaccurate. Remove & restore power to reboot
Dusk-to-Dawn feature,
lights will not turn OFF Auxiliary output not set for load control
Timers set incorrectly
Charge control does not turn ON
Confirm dip switch #3 is ON and Dusk-to-Dawn enabled.
Either Post-Dusk or Pre-dawn timers must be set to time value to enable Dusk-to-Dawn feature.
Check charge control system related items