VLT ® 2900 Series readout is activated by pushing the [DISPLAY STA- TUS] key. This is where the required function is selected if, in parameter 002 Local/remote operation, Local opera- tion [1] has been chosen. See parameter 009 Large display readout . If Local not active [0] is selected, it is not possible to set a reference via parameter 003 Local reference . In order to enable a shift to Local not active [0], param- eter 002 Local/remote operation must be set to Remote operation [0]. See parameter 009 Large display readout Motor current [A][6] Local control and open loop [1] is used if the motor speed is to be set via parameter 003 Local reference .
When this choice is made, parameter 100 Configura- tion automatically shifts to Speed regulation, open loop [0]. See the functional description given under parameter 010 Small display readout . See parameter 009 Large display readout . Remote-operated control and open loop [2] functions in the same way as Local control and open loop [1]; however, the frequency converter can also be control- led via the digital inputs. For selections [1-2] control is shifted to open loop, no slip compensation.
See parameter 009 Large display readout Local control as parameter 100 [3] is used when the motor speed is to be set via parameter 003 Local ref- erence , but without parameter 100 Configuration auto- matically shifting to Speed regulation, open loop [0]. Programming Feedback [unit] [3] See the functional description given under parameter 010 Small display readout . Remote-operated control as parameter 100 [4] works the same way as Local control as parameter 100 [3]; however, the frequency converter can also be control- led via the digital inputs. See parameter 009 Large display readout .
Shifting from Remote operation to Local operation in parameter 002 Local/remote operation , while this pa- rameter has been set to Remote-operated control and open loop [1]: The present motor frequency and direc- tion of rotation will be maintained. If the present direc- tion of rotation does not respond to the reversing signal (negative reference), the reference will be set to 0. Local not active (DISABLE) [0] Local control and open loop without slip com- pensation (LOC CTRL/OPEN LOOP) [1] Shifting from Local operation to Remote operation in parameter 002 Local/remote control , while this param- eter has been set to Remote-operated control and open loop [1]:
The configuration selected in parameter 100 Configuration will be active. The shift will be smooth. Remote-operated control and open loop with- out slip compensation (LOC+DIG CTRL) [2] Local control as parameter 100 (LOC CTRL/AS P100) [3] Shifting from Remote control to Local control in param- eter 002 Local/remote operation , while this parameter has been set to Remote-operated control as parameter 100 [4]: the present reference will be maintained. If the reference signal is negative, the local reference will be set to 0.
Remote-operated control as parameter 100 (LOC+DIG CTRL/AS P100) [4] = factory setting, () = display text, [] = value for use in communication via serial communication port MG.29.A3.02 - VLT ® is a registered Danfoss trademark 15 Function: Description of choice: Description of choice: 011 Small display readout 1.2 (DISPLAY LINE 1.2) Value: Function: Description of choice: 012 Small display readout 1.3 (DISPLAY LINE 1.3) Value: Function: Description of choice: 013 Local control (LOC CTRL/CONFIG.) Value: