Throttle lever control system
70
Terminating resistor for cross communication
In multi−engine applications the Marex OSII (MPC) controller in the engine room requires a connection
(cross communication) to the other engines. This cross communication is also made using a CAN bus and
serves as a data exchange e.g. for rpm synchronisation between the throttle lever controllers. The X 13
and X 14 connections at the terminal box are available for this purpose.
The X 13 and X 14 connections must not be fitted with terminating resistors, but rather fitted with blind caps
when not used. The termination is always made directly at the MPC controller dip switch (S2). The default
setting must not be changed for double engine systems.
Default setting for double engine systems: S2 set to right position = termination active
On systems with more than two engines, termination of the MPC controller in the middle must be
deactivated, i.e. DIP switch S2 set to the left position.
Checking gearbox control
Measuring the resistance at the solenoid valves
To ensure that the commissioning process runs smoothly, first check the resistance of the solenoid valve
before the gearbox controller is connected.
Caution:
For 24 V valves the resistance must be greater than 12
Ω
!
Flat ribbon cables in the terminal box for gearbox control may be overloaded or destroyed.
Procedure:
D
Disconnect the solenoid valve plug
D
Carry out a resistance measurement (forwards and reverse) at both solenoid valves
Set the meter to ohms and measure the resistance of the respective solenoid valve between Pin 1
and Pin 2.
Resistances for 24 V solenoid valves:
−
ZF:
20−30
Ω
−
Twin Disc:
28−32
Ω
Summary of Contents for V12-1800
Page 1: ......
Page 2: ......
Page 12: ...Planning of engine installation 10 V12 1800 1 2 3 4 5 V8 1200 6 7 8 9 4 10 11...
Page 78: ...Notes 76...
Page 79: ...77 Appendix...
Page 80: ......
Page 91: ......
Page 92: ......
