If PWM Speed Control *is* Used
If there is no PWM signal within 2 seconds of power-on, the default mode of full speed operation will be used.
If there is a valid PWM signal, a speed-proportional response to a commanded 15-90% duty cycle will be delivered.
+12V PWM controlled,
Recommended PWM frequency: 50Hz to 200Hz (nominal = 100Hz)
Recommended PWM Duty range: 15 - 90%
The water pump operates at its minimum speed when the PWM duty cycle is 15%, and it reaches its maximum speed when the PWM duty cycle is greater than 90%.
We also provide the PWM Signal Generator which is fitting for the pump, buyers who need the PWM Signal Generator pls Click Here for more details.
Attention:
*The water pump is driven by a brushless DC motor. Ensure that the positive and negative poles are not reversed, and the operating voltage range is DC8.5V to 16V.
*The maximum power of the water pump is 60 watts. Use a power supply with a capacity greater than 60W; otherwise, the pump may not function properly.
*The water pump needs to have water for testing; otherwise, it will detect the lack of water and stop working. Testing the water pump without water will cause it to start and stop multiple times, eventually leading to a protective shutdown.
*The water pump is not self-priming, so the water inlet should be below the water level, or the entire pump can be submerged in water (the pump is waterproof and can be used as a submersible pump).