GF54.61-D-4103H Modular Tachograph (MTCO), Component Description

GF54.61-D-4103H Modular Tachograph (MTCO), Component Description

- with CODE (J19) Automatic 1 day/2 driver tachograph (EC)







A56 Tachograph
N72/1 OBF control unit

Location
The tachograph is located in the instrument panel below the OBF control unit.

Task
The tachograph has the following tasks:
- Operation options over control buttons, e.g. calling up of menu content for diagnostic data or selection of respective working time groups for drivers 1 and 2
- Comparison of real-time signal (analog signal) with encoded, digital signals as well as verification of serial number of speed sensor (B6/12)
- Transmission of data and command signals to speed sensor
- Calculation of ground speed and travel distance
- Display of following information on tachograph display:
- Date
- Time
- Odometer reading
- Set time groups
- Symbols of inserted tachograph disks and individual menu items, e.g. fault memory or programming data

- Registration of following 4 time groups
- Steering time
- Standby time
- Break times and rest times
- Other working hours

- Detection of following information:
- Real-time signal (analog signal) and encoded, digital signals for rotational speed of transmission output shaft
- Serial number of speed sensor

- Documentation of following information on tachograph disk(s) with precise time specification:
- Vehicle speed
- Travel distance
- 4 time groups
- Special events, e.g. voltage interruptions or faults at speed sensor

- Monitoring of system for following faults by means of integrated diagnostic function, storage of diagnosed fault in event or fault list and automatic display of diagnosed fault in tachograph display:
- Voltage interruption
- Faulty signals from speed sensor
- System faults
- Operating errors

- Transmission of diagnostic information to EIS [EZS] control unit (N73) via Controller Area Network bus class C (engine compartment) (CAN-C)
- Communication with instrument cluster (A1) via CAN-C
- Actuation of switch and controls illumination for buttons integrated in tachograph

An entry on the tachograph disk or tachograph disks ensues depending on the diagnosed fault.







Design
30 Left button panel
31 Display
32 Right button panel
33 Drawer
34 Separator plate
35 Inspection marking
36 Oval tachograph disc support
37 Model plate
30a Unlock drawer button
30b Button for time group settings, driver 1
32a Minus button
32b Button for time group settings, driver 2
32c Plus button
32d Menu button
A56 Tachograph

It is not possible to fold down the drawer. The illustration is simply intended to provide a better understanding of the design.







Display setup
31 Display
31a Date display
31b time display
31c Time display group symbol, driver 1
31d Display of tachograph disk symbol, driver 1
31e Display of total kilometer reading
31f Fault symbol display
31g Display of tachograph disk symbol, driver 2
31h time display group symbol, driver 2