Solar Controller

OVERVIEW

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The Shakti Solar controller is a variable speed motor drive designed to run a Shakti three-phase AC motor. The Shakti Solar provides water to remote locations by converting high voltage, direct current from a solar array into alternating current to run a shakti AC motor. When solar power is not available, the controller can manual switch to an alternate three or single-phase AC input such as a grid or generator or inverter from battery, if available. The controller provides fault detection, motor soft start,and speed control.

The Shakti Solar drive is designed with the high standard of reliability expected of Shakti products. The controller attempts to drive the pump and motor to deliver water even under adverse conditions, reducing output as necessary to protect the system components from damage, and only shutting down in extreme cases.

Descriptions and Features

The Shakti Solar drives controller continuously monitors system performance and incorporates a number of features for pump system protection. In the event of a fault, the Shakti Solar drives will indicate the type of fault through the LCD displays.

The Shakti Solar drives system is optimized for pumping under adverse input power conditions unique to solar arrays.

• Internal diagnostics will tolerate a lower input voltage.
  
• Whenever possible, the controller attempts to regulate the pump load in a manner that optimizes for maximum power transfer from the solar array.
  
• The drive manually switches to AC backup power (when available) if the DC primary source is unable to support pump operation.
  

The controller construction is ruggedized for hostile environmental conditions.

• The case is constructed of heavy-gauge zinc plated steel to resist rain, animal intrusion and prolonged direct exposure to sunlight.
  
• The seals are designed for NEMA 3 (IEC rating IP55), (dust tight, and withstand directed jets of water).
  
• For maximum protection against dust, there is no external cooling fan or other external moving parts.
  

An easy to use interface is provided to enhance configurability and enable remote system monitoring.

• A three-digit seven-segment display provides a detailed indication of system status.
  
• A small keypad offers flexibility for selection of user options.
  
• A continuous data connection for remote telemetry is made available via an RS-485 port. (Optional)
  
• If using remote telemetry, follow the register information found in the RS-485 addendum. (Optional)