Table of Contents
Advertisement
2 Operation
2.1 DP Control Transfer
Before the AlphaDynaPos DP system can take over the control, a takeover procedure from Individual Thruster/Rudder
Control to DP Operation has to take place. On the AlphaDynaPos DP system, the DP system has to be CALLED UP to
take over control.
2.1.1 Before control transfer for usage in DP2 mode
When using the system in DP2 mode the operator should check following:
1. DP1 and DP2 Stations should not be in simulation mode.
2. The switchboard (PMS) must be in DP2 configuration, in case of electric propulsion.
3. The switchboard must be in split bus arrangement.
Note A single switchboard fault should stop the minimum number of thrusters. The remaining thrusters must
be able to hold position under given circumstances. See Appendix B: Checklist for Taking DP system into
Operation on page 85.
2.1.2 Control Transfer from Individual Control to DP/JC
Before taking the DP system into use check that no (unacknowledged) alarms are present. An operator who wants to
change over from Individual Thruster/Rudder Control to DP Operation has to perform the following actions:
1. Check that the AlphaDynaPos DP system is in good working order.
INFO: Whether the system is in good working order is indicated on the DP Operator Panel.
2. Set the Joystick and the Heading knob in the neutral position.
INFO: The Joystick and Heading knob are part of the DP Operator Panel.
3. Check that each thruster/rudder is in good working order.
INFO: Whether each thruster/rudder is in good working order is indicated on each Individual Controller.
4. Set each thruster/rudder to neutral position.
INFO: The thruster setting is part of each Individual Controller.
5. Set the mode switch from MANUAL to DP/JC.
6. Firmly push the CTRL button on the DP Joystick Panel.
INFO: Wait for 2 seconds until button starts flashing.
7. Firmly push the CTRL button on the DP Joystick Panel again.
INFO: Call control outputs are activated.
8. Set the switch 'Individual / DP-JC' to 'DP-JC' for each thruster/rudder.
The push button on the DP Operator Panel will stop flashing.
Note This switch is part of each Individual Controller.
When JC Operation is required, follow the same procedure on the JC Operator Panel. See Appendix B: Checklist for
Taking DP system into Operation on page 85.
24 | Operation
Advertisement
Table of Contents
