User Manual Q&AAnswer
Feb 22, 2025 - 01:18 AM
To control the speed of the motor using the Danfoss Heavy Duty Hydrostatics for Constant Speed Control, follow these steps:
1. Ensure that the manual control valve is not in the center position and the switch on the electronic controller is not in the "OFF" position. If either of these conditions is met, the motor will remain stopped.
2. The direction of motor rotation is controlled by the manual control handle and is not affected by the electronic controller.
3. The speed of the motor is determined by the position of the manual control handle when the electronic controller is in the "NORMAL" position. The manual control handle will have the same effect on motor rotation as it does when there is no electronic controller on the pump.
4. If you want the drum speed to be controlled automatically, ensure that the engine is at minimum rpm and the manual control handle is displaced from the center enough to cause the drum to rotate at least two revolutions per minute (rpm). Then, place the controller switch in the "AUTOMATIC" position. The drum speed will be limited to approximately one and a half rpm. The manual control handle can still be moved forward or reverse without affecting the speed at which the motor is automatically controlled.
5. To stop or start the drum rotation using an electrical switch, wire the switch across the "remote" terminals. The switch can act as a remote switch by attaching it to an electrical cable extending from the controller to the back of the truck or another location within 100 feet of the controller. Note that the controller switch must be in the "NORMAL" position for the remote switch to control the motor, and the remote switch must be in the "ON" position to enable motor rotation.
Please refer to the instruction manual for further details and diagrams on the installation and operation of the Danfoss Heavy Duty Hydrostatics for Constant Speed Control.
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