PDS23 Plus Series
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increasing motor voltage, resulting in a cooler motor and lower start-up current
compared to conventional water systems. Due to the controller’s soft-start feature
this will not harm the motor.
Over Temperature Foldback
PDS23Plus solar pump controller is designed for full power operation from a solar
array in ambient temperatures up to 45 °C.In excess of45
℃
temperature conditions
，
the controller will reduce output power in an attempt to avoid shutdown. Full pump
output is restored when the controller temperature cools to a safe level.
Level Control Switch
PDS23Plussolarpumpcontroller
canaccesstwowater
level
switch
detectsremotelycontrol the pumpautomatically.Level switchforthe controlleris
optional,not mandatory.
Switching to Backup AC Power
The input power of the PDS23 Plus solar pump controller can be switched to
standby AC power through a power switch box.
Note: the controllers support power input 380VAC three-phase.
When the system is running on back-up AC power, please check for sufficient DC
primary source power every 30 minutes. If the primary DC power is available, shut
down the controller, switch back to primary power and attempt to run on DC
power supply.
NOTICE
: A DC switch and aAC switch must be installed in the power switch box,
and these two switches must be mechanically interlocked each other to prevent
switching on together resulting the solar PV and the generator being connected to
the controller simultaneously! Please check if the design is in accordance with all
applicable national and local electrical codes.
