Danfoss PLUS+1 Technical Information

Also see for PLUS+1 Series: Technical information Technical information

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Technical Information Transit Mixer Controller (TMC)11061324 • Rev CA • Sep 201312Charge FunctionTransit mixer charge functionality is enabled from an activated TMC by pushing the yellow TMCcontrol button and turning the rotary dial to the right (clockwise). Drum speed and engine RPM arefunctions of the rotary dial position.Discharge FunctionTransit mixer discharge functionality is enabled from an activated TMC by pushing the yellow TMCcontrol button and turning the rotary dial to the left (counterclockwise). Drum speed and engine RPMare functions of the rotary dial position.The vehicle parking brake must be engaged to enable the discharge function.Limp Home FunctionIf the cabin station TMC looses motor speed (PPU) input, the drum speed PID algorithm will be resetand drum speed will be directly controlled from the rotary dial without any feedback compensationfor changes in engine speed and other disturbances.Error CodesIf the TMC application software detects an error condition, the output signal to the drum motor willbe set to zero and an error blink code will be indicated by a red color LED (to the right of the TMC’srotary dial).Potential TMC ErrorsError code Description20 Rotary switch error21 Discharge set point error22 Charge set point error23 Motor speed PPU lost. Limp home24 PID error25 Error on output26 Error on input27 CAN communication lost28 Engine RPM request error29 Error in feed-forward from Rotary Switch30 Error in feed-forward from Engine RPMError Blink Code ExamplesError code Description20 Two long, followed by zero short.21 Two long, followed by one short.OperationDefinitions(continued)