Blue Sky Solar Boost 1524iX User Manual

Page 7

Installation and Operation Manual

ELECTROSTATIC HANDLING PRECAUTIONS

All electronic circuits may be damaged by static electricity. To minimize the likelihood of electrostatic damage, discharge yourself by touching a water faucet

or other electrical ground prior to handling the 1524 and avoid touching components on the circuit boards. The risk of electrostatic damage is highest when relative
humidity is below 40%.

BATTERY AND PV VOLTAGE

Nominal battery voltage and PV voltage are determined automatically. The battery is considered to be 12V if battery voltage following boot is less than

16V, or 24V if battery voltage is greater. If the battery is determined to be 24V all 12V voltage setpoints are doubled. PV voltage is also determined
automatically. If nominal PV voltage is changed following installation power must be momentarily removed to reboot the 3024 to reconfigure PV voltage.

SELECTING PV MODULES

Voltage, current and power produced by Photovoltaic (PV) modules fluctuate widely with operating conditions. As a result a set of test conditions

referred to as Standard Test Conditions (STC) are used to rate modules in a meaningful manner and accurately predict real world performance. STC
ratings are not maximum or optimal ratings. Conditions can be present where V

and I

approach 1.25 times STC ratings which is why National Electrical

Code and our recommendations call for 1.25 derating of both V

and I

. Yet in real world conditions I

is commonly only about 75 – 80% of I

at STC.

Key PV module specifications;

MAX

Maximum power in watts (P

MAX

= V

x I

)

Voltage with module open circuit (typically

≈20 – 22V for 12V modules)

Voltage where module produces Maximum Power (typically

≈17 – 18V for 12V modules)

Current where module produces Maximum Power

Current with module Short Circuit

The 1524 will provide the best MPPT current boost performance if all PV modules are identical. If module types are mixed, do not put dissimilar

modules in series. Dissimilar modules in parallel should have V

values within

≈0.5V or better for 12V modules, and be of the same basic cell technology so

their V

will tend to track as operating conditions change. If module types are very different consider using a separate charge controller for each module

type to obtain the best MPPT current boost performance.

Select PV modules that do not exceed the maximum ratings shown below, and preferably produce at least 3A of I

per 100 amp-hours of battery capacity.

Recommended range of V

at STC

Nominal

Battery

Voltage

Automatic

Current Limit

Maximum

PV Power @

STC

Maximum

Isc @ STC

Maximum

@ STC

Nominal 12V PV

Nominal 18V PV

Nominal 24V PV

12V 20A* 270W 16A* 24.0V* 16.5

–

18.5V

12V 15A 200W 8A 45.6V

24.8 – 27.8V

12V 15A 200W 6A 45.6V

33.0 – 37.0V

24V 15A 400W 12A 45.6V

33.0 – 37.0V

Current rating and current limit are 20A when charging a 12V battery from nominal 12V PV modules. If

PV V

ever exceeds 30V (>12V nominal PV modules) current rating and current limit become 15A.

AS SHIPPED FACTORY DEFAULT SETTINGS

The 1524 contains various user configurable settings all of which are preconfigured at the factory. Most installations require no

changes to these settings which are typically suitable for most lead-acid batteries including sealed lead-acid batteries such as
Gel and AGM. All software programmable settings require the IPN-ProRemote to change and are retained if power is lost or the
IPN-ProRemote is used as a setup tool only and removed.

Software programmable settings
• Charge mode .............................................. 3-stage

• Equalize voltage ....................................................... 15.2/30.4V

• Acceptance voltage .................................... 14.2/28.4V

• Equalize time ............................................................ 2.0 hours

• Float voltage ................................................ 13.2/26.4V

• Auto equalize days ................................................... 30 days

• Charge time ................................................ 2.0 hours

• Maximum voltage setpoint limit ................................ 15.5/31.0V

• Float Transition Current .............................. 1.5A/100 amp-hours

• Temperature compensation factor ........................... −5.00mV/°C/cell

• Load control ON voltage ........................... 12.6/25.2V

• Dusk-to-Dawn lighting control ................................ Disabled

• Load control OFF voltage ......................... 11.523.0V

DIP switch & jumper settings (All DIP’s OFF, A2 open)
• Auxiliary Output mode ................................ Auxiliary battery charger

• IPN Network address ............................................... 0 (zero, IPN Master)

• Equalize ...................................................... Disabled

EQUALIZE ENABLE

If DIP switch #4 is turned OFF, equalization is completely disabled. If DIP switch #4 is turned ON prior to the application of battery power, automatic

equalization is enabled and the 1524 will perform automatic equalization after the set number of Auto Equalize Days has elapsed. If DIP switch #4 is turned
ON, after battery power is applied an automatic equalization cycle will begin immediately. Equalization can also be started and stopped from the IPN-
ProRemote if DIP switch #4 is ON.

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