•
Operation mode “Control On”
6.6.3.1
Operation mode “Off”
To deactivate the synchro phasing system, select the operation mode “OFF” (001, see
) on the LDU.
If operation mode “Off” is activated, the speed set point offset of slave engine is reduced to zero
and all other control actions of synchro phasing system are reset to initial value (zero).
Fig 6-33
Synchro-Phasing System Status “Off” LDU page
001
6.6.3.2
Operation mode “Estimate Only”
The operator must check the below preconditions and select the operation mode “Estimate
Only” (001, see
) on the LDU.
•
The two engines operate ahead and within the minimum and maximum synchro-phasing
speed. The maximum permitted difference between the engines speed set point is configure
to ±0.5 rpm.
•
“Heavy sea mode” is not active on any engine.
•
No major failure of synchro-phasing system is shown.
•
No machinery protection action is active on any engine. For e.g. slowdown.
•
The two engines have same speed setpoint (from RCS or from local control) and at there
speed setpoint.
NOTE:
If any of the above preconditions are not available, the mode “Estimate Only” will
deactivate automatically.
X72-B
AA00-0000-00AAA-043V-A
Operation Manual
Synchro phasing system
Winterthur Gas & Diesel Ltd.
- 284 -
Issue 003 2021-12
