Full Product Manual

5
General Information
The Wanderer (CTRL-WND30) is an advanced charge controller for off-grid solar
applications. Integrating highly efficient PWM charging, this controller increases battery
life and improved system performance. It can be used for a 12V battery or battery bank.
The controller is embedded with self-diagnostics and electronic protection functions that
prevent damages from installation mistakes or system faults.
Key Features
 Optimized for 12 VDC system voltage
 30A charging capacity
 Deep Cycle Sealed, Gel, and Flooded battery option.
 4 Stage PWM charging: Bulk, Boost. Float, and Equalization
 Temperature compensation and correcting the charging and discharging
parameters automatically, improving battery lifetime.
 Protection against: overcharging, short-circuit, and reverse polarity.
 Negative ground controller
 Remote temperature compensation compatible (accessory sold separately)
PWM Technology
The Wanderer utilizes Pulse Width Modulation (PWM) technology for battery charging.
Battery charging is a current based process so controlling the current will control the
battery voltage. For the most accurate return of capacity, and for the prevention of
excessive gassing pressure, the battery is required to be controlled by specified voltage
regulation set points for Absorption, Float, and Equalization charging stages. The charge
controller uses automatic duty cycle conversion, creating pulses of current to charge the
battery. The duty cycle is proportional to the difference between the sensed battery
voltage and the specified voltage regulation set point. Once the battery reached the
specified voltage range, pulse current charging mode allows the battery to react and
allows for an acceptable rate of charge for the battery level. The Wanderer has a 4-stage
battery charging algorithm for a rapid, efficient, and safe battery charging. They include:
Bulk Charge, Boost Charge, Float Charge, and Equalization.