Parameters: Communica-tions and Options8-** Comm. and OptionsParameter group for configuring communicationsand options.8-0* General SettingsGeneral settings for communications and options.8-01 Control SiteValue:Digital and ctrl. word [0]Digital only [1]Control word only [2]Function:Select Digital and ctrl. word [0] for control usingboth digital input and control word.Select Digital only [1] for control using digital in-puts only.Select Control word only [2] for control using con-trol word only.The setting in this parameter overrules the set-tings in par. 8-50 to 8-56.8-02 Control Word SourceValue:None [0]FC RS485 [1]FC USB [2]Option A [3]Option B [4]Option C0 [5]Option C1 [6]Function:Select the source of the control word: one of twoserial interfaces or four installed options. Duringinitial power-up, the frequency converter auto-matically sets this parameter to Option A [3] if itdetects a valid fieldbus option installed in slot A.If the option is removed, the frequency converterdetects a change in the configuration, sets par.8-02 back to default setting FC RS485, and thefrequency converter then trips. If an option is in-stalled after initial power-up, the setting of par.8-02 will not change but the frequency converterwill trip and display: Alarm 67 Option Changed.This parameter cannot be adjusted while the mo-tor is running.8-03 Control Word Timeout TimeValue:0.1 - 18000.0 s 1.0sFunction:Enter the maximum time expected to pass be-tween the reception of two consecutive telegrams.If this time is exceeded, it indicates that the serialcommunication has stopped. The function selec-ted in par. 8-04 Control Word Time-out Functionwill then be carried out. The time-out counter istriggered by a valid control word.8-04 Control Word Timeout FunctionValue:Off [0]Freeze Output [1]Stop [2]Jogging [3]Max. Speed [4]Stop and trip [5]Select set-up 1 [7]Select set-up 2 [8]Select set-up 3 [9]Select set-up 4 [10]Function:Select the time-out function. The time-out func-tion activates when the control word fails to beupdated within the time period specified in par.8-03 Control Word Time-out Time.- Off [0]: Resume control via serial bus(Fieldbus or standard) using the most re-cent control word.- Freeze output [1]: Freeze output frequen-cy until communication resumes.- Stop [2]: Stop with auto restart whencommunication resumes.- Jogging [3]: Run the motor at JOG fre-quency until communication resumes.FC 300 Design GuideHow to Programmefactory setting () display text [] value for use in communication via serial communication port188 MG.33.B7.02 - VLT is a registered Danfoss trademark