Drive lever control unit
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This is particularly applicable to the chapter “General Safety Instructions”
and the respective safety instructions in the chapters.
7.2 External drive lever control unit
General
Alternatively to the internal drive lever control unit, it is possible to control the engine with an external
4-20 mA power signal of an electric drive lever control (4 mA = idle, 20 mA = nominal speed).
If the 4-20 mA signal fails, a defect classification is effected in the MCS and the engine continues running
at idle speed.
The external drive lever control unit (1) is located
in the engine room in addition to the E-box.
The scope of the classified drive lever control unit
is supplied with the engine and as a classified unit
on behalf of the customer by MAN.
The external drive lever control unit will be installed in
the engine room and commissioned on site. A drive
lever control unit is required for each engine.
Connection X9 serves for connection of the
external drive lever control.
Design and equipment of the external drive lever control unit
- Speed control (electric 4-20 mA)
- Speed synchronization possible
- Trolling possible (not usual with classified engines since this is a convenience function)
- Slip&Grip (not usual with classified engines since this is a convenience function)
- Gearbox control (electric digital)
- Evaluation of feedback signals on gearbox
Optionally by using control strips:
- Start/stop request, required if there is more than one operator's stand
- Display of the active operator's stand, necessary in the case of more than one operator's stand
- “Local active” display
- Direction “FORWARDS/REVERSE” display
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