SUN CHARGER 30 12VDC 30AMP PULSE WIDTH MODULATED PHOTOVOLTAIC CHARGE CONTROLLER INSTALLATION AND OPERATION MANUAL THIS MANUAL INCLUDES IMPORTANT SAFETY INSTRUCTIONS FOR MODEL SC30 SAVE THESE INSTRUCTIONS. © Blue Sky Energy, Inc.
Blue Sky Energy – Sun Charger 30 TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS ................................................................................................................................ 2 PRODUCT DESCRIPTION...................................................................................................................................................... 3 Part Numbers and Options ......................................................................................................
Installation and Operation Manual IMPORTANT SAFETY INSTRUCTIONS This manual contains important instructions for Model SC30 SAVE THESE INSTRUCTIONS 1. Refer installation and servicing to qualified service personnel. Incorrect installation or use may result in risk of electric shock or fire. No user serviceable parts in this unit. 2.
Blue Sky Energy – Sun Charger 30 PRODUCT DESCRIPTION Sun Charger is a 30 amp 12 volt Pulse Width Modulated (PWM) photovoltaic (PV) battery charge controller. The SC30’s sophisticated 3-stage plus equalization charge control system improves battery performance and life while minimizing battery maintenance. The unit is electronically protected against voltage transients, over temperature, over current, short circuit, swapped battery & PV, and reverse battery & PV polarity.
Installation and Operation Manual To assist in understanding the performance of your solar system the SC30 includes a solar charge amp-hour counter. The amp-hour counter displays in whole numbers with no decimal point up to a maximum count of 999 amp-hours. The number displayed is the total solar charge amp-hours accumulated since the last time the amp-hour counter was cleared.
Blue Sky Energy – Sun Charger 30 2-STAGE CHARGE CONTROL Certain battery types or system configurations may require 2-stage Bulk/Absorption charge control. The SC30 can be configured for 2-stage charge control by setting the Float Charge Voltage to OFF. OPTIONAL TEMPERATURE COMPENSATION The charge voltage required by batteries changes with battery temperature. Temperature compensation of charge voltage enhances battery performance and life while decreasing battery maintenance.
Installation and Operation Manual MAXIMUM SETPOINT VOLTAGE LIMIT The maximum setpoint voltage limit is not a charge voltage setting but rather places a maximum limit or ceiling on the charge voltage setpoint actually used by the SC30 in all charge modes. Regardless of setpoint values entered by the user or how setpoints may adjust due to temperature compensation the SC30 will not use a charge voltage setpoint greater than the maximum setpoint voltage limit factory set to 15.5V.
Blue Sky Energy – Sun Charger 30 CHARGE PARAMETER SETTINGS The SC30 contains various charge parameter settings all of which are preconfigured at the factory to the default settings shown below. Most installations require no changes to these settings which are typically suitable for most flooded, GEL and AGM lead-acid chemistry batteries. ¾ WARNING: If charge parameter setting changes are made, confirm that the new settings comply with the battery manufacturers recommendations.
Installation and Operation Manual Restoring As Shipped Factory Default Settings 1. Remove both PV and battery power. 2. Apply battery power while pressing & holding the Setup push-button. 3. Confirm all display segments & LED’s remain on while Setup is held. 4. After at least 5 seconds, release Setup. 5. Display will show software revision, then resume normal operation. 6. The SC30 is now set to as shipped factory default settings.
Blue Sky Energy – Sun Charger 30 BATTERY & PV POWER CONNECT/DISCONNECT ORDER ¾ CAUTION: When applying power to the SC30, battery power should be connected first followed by PV power. Disconnect PV power first when removing power. DO NOT disconnect the battery while the SC30 is in a Charge ON state with PV power connected. A healthy battery is a key component of the PWM charge voltage control system and provides a very important charge voltage filtering function.
Installation and Operation Manual TROUBLESHOOTING GUIDE SYMPTOM PROBABLE CAUSE ITEMS TO EXAMINE OR CORRECT Completely dead, display blank. No battery power. Battery disconnected, overly discharged, or connected reverse polarity. Battery powers SC30, not PV. Voltage present on the SC30’s battery terminals must be the same as actual battery voltage within a few 10ths and at least 9 volts. Display mode set to OFF. No battery power. Press Display Select to select display mode other than OFF.
Blue Sky Energy – Sun Charger 30 SPECIFICATIONS SPECIFICATIONS Nominal Battery Voltage Output Current Rating PV Input Voltage Power Consumption Charge Algorithm Absorption / Float / EQ Voltage Dimensions Environmental Sun Charger 30 12 volts DC 30 amp maximum (Recommend maximum ISC at STC ≤ 27 amps) 30 volts DC absolute maximum (Recommend maximum VOC at STC ≤ 24V) 14mA typical standby • 19mA typical display ON 3-stage Bulk/Absorption/Float • Plus Auto/Manual Equalization 14.4V / 13.2V / 15.
