Man iSea, Руководство по эксплуатации, Страница: 25 / 172

Functional safety
23
Read this manual carefully before starting any work!
This is particularly applicable to the chapter “General Safety Instructions”
and the respective safety instructions in the chapters.
3.2.1 „Non class“ - Application
Drive lever control unit
System off
Gearbox control
Fwd / Neutr. / Rvs.
Gearbox control
Fwd / Neutr. / Rvs.
Gearbox shifting
Speed setpoint (4…20 mA)
Feedback of current gearbox position
Display / Emergency
operation
Speed setpoint
(via engine CAN)
Engine CU
Engine
Bolt
Monitoring Control
System (MCS)
Start/Stop
(via engine CAN)
Gearbox
Fwd / Neutr. / Rvs.
- Gearbox setting
specification
Feedback
Current engine speed
Connection CAN:
- Display
- Start/stop
- Speed adjustment
Emergency drive function
Display with drive lever control unit
External Start / Stopp
Signal source:
External Start / Stopp
The engine control unit receives the engine start/stop requirements as well as the speed setpoint from the
MCS control unit. In order to change the direction of rotation of the shipʼs propeller, a
reverse gearbox is
installed, which is controlled by the MCS control unit or the drive lever control unit via the E-Box.
- The combustion engine is coupled directly to the shipʼs propeller via a closed drive train. A torque is
transmitted to the gearbox. The gearbox and the shipʼs propeller are not part of the system
- The combustion engine is controlled and monitored by the engine’s electronic control unit (ECU).
- The target speed is set for the engine control unit by the Monitoring Control System (MCS)
- The MCS CU sets the target speed, which can originate from several speed sources:
1. 4...20 mA input (drive lever control unit)
2. Display with emergency drive function (via CAN)
As a rule, the 4...20 mA input is used for the speed setpoint. All other sources are only used in
exceptional cases, e.g. during maintenance work, failure of the main path, or special applications
- The MCS provides the signal for controlling a reverse gear. The system is able process gear signals
from several sources and generate the setting:
1. Drive lever control unit
2. Emergency drive unit / local control unit
- The MCS CU creates the engine start and stop requests, which can originate from several sources:
1. Display (via CAN)
2. External Start-/Stop Unit(Hardwired)