Protection Features - SAJ PDS33 Series User Manual

PDS33 Series
The PDS33 solar pump controller continuously monitors system performance and
incorporates a number of features for pumping system protection. In the event of a
fault, the PDS33 solar pump controller will indicate the type of fault through the
LED display mounted on the front cover of controller.
The PDS33 solar pumping 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 drive the pump load by maximizing
power output from the solar array.
•An easy way to use interface is to enhance configurability and enable remote
system monitoring.
• A LED display provides a detailed indication of system status.
• A small keypad offers flexibility for selection of user options.

2.3 Protection Features

Electronic monitoring gives the controller the capability to monitor the system and
automatically shut down in the event of:
• Dry well conditions – with low level switch
• Bound pump – with auto-reversing torque.
• High Voltage Surge
• Low Input Voltage
• Open motor circuit
• Short circuit
• Over heat
NOTE: This controller provides motor overload protection by preventing motor
current from exceeding rating current and by limiting the duty cycle in the event of
low water level. This controller does not provide over temperature sensing of the
motor.
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