PDS33 Series
- 23 -
3.2.4 Ground Wiring
Ground terminal (GND) is labeled as this icon . Please refer to the instruction to
this icon, or other equivalent icon or sign by local electrical codes or international
standard. Correct grounding helps to prevent shock hazard if there is a fault in the
motor.
3.2.5 Motor Wiring
Connect the cable with four wires from the Motor to the controller terminal block
to terminals U, V, W, and GND .Check motor lead color to ensure correct
installation.
Note: To reverse direction of motor rotation, reverse any two wires
US
Black
（
BLK
）
Red
（
RED
）
Yellow
（
YEL
）
Ground
（
GND
）
International
Gray
（
GRY
）
Black
（
BLK
）
Brown
（
BRN
）
Ground
（
GND
）
3.2.6 Low water level probe wiring (optional)
In order to avoid dry pumping lead to pump damage can be connected a wells
probe to the terminals of the PDS33 solar pump controller, so as to detect the water
level in wells and the wire maximum length can not more than 50m. If there is no
water level probe for the detection of the water level, please keep the two terminals
of the controller short. The controller can also detect water through the built-in
software water detection function.
