ROLLS ROYCE MARINE AS CIRCUIT BOARD (PCB) RRAI016

ROLLS ROYCE MARINE AS CIRCUIT BOARD (PCB) RRAI016

Interface to external systems

Interface to drive motor starter. (Project dependent. To be settled at interface meeting) - Drive motor RPM order signal, 4 - 20 mA.

The signal has to be galvanic isolated at the governor side. - RPM feedback signal

4-20mA signal from the frequency converter. Closed when frequency converter fault. - Common Alarm Drive RPM (Reduce load)

Potential free contact from the frequency converter. Closed = frequency converter alarm - Frequency Converter fault/ trip (autostop).

Potential free contact from the frequency converter. Closed = frequency converter fault. - Frequency Converter reset.

Potential free contact to the frequency converter. Closed = reset (pulse) - Start Frequency Converter

Potential free contact to the frequency converter. Closed = start (pulse) - Stop/ Autostop Frequency Converter

Potential free contact to the frequency converter. Closed = stop (pulse) - Emergency Stop Frequency Converter

Potential free contact to the frequency converter. Closed = stop (pulse)

Loop monitored in Frequency Converter (resistors in each control panel) - Interlock start/Auto stop Motor

In case of too low gear lub. oil pressure, a potential free relay contact is given to the engine control

system for immediately stop of the engine.

Open = stop. - Frequency Converter ready to run if handle out of zero.

Potential free contact from the frequency converter.

Closed = frequency converter started. - Power limitation.

Potential free contact from the frequency converter. Closed = power limited in drive. - Local/ emerg. control

Potential free contact from the frequency converter. Closed = local

DP Interface

The remote control is provided with interface for an ICON DP system.

Communication is via Ethernet.

(Other DP system will be interfaced through hardwired signals)

Signals required from the DP system: - Closing contact (potential free) to engage the DP mode. (From selector switch). - Request for control. - Speed control signal - Steering control signal

Signals available to the DP system: - Remote control is ready for DP - Remote control acknowledge of DP mode. - Propeller RPM feedback signal - Steering feedback signal - Power reduced signal

Joystick Interface

The remote control is provided with interface for a POSCON Joystick system.

Communication is via Ethernet.

(Other joystick system will be interfaced through hardwired signals)

Signals required from the JOYSTICK system: - Closing contact (potential free) to engage the JOYSTICK mode. (From selector switch). - Request for control. - Speed control signal - Steering control signal

Signals available to the JOYSTICK system: - Remote control is ready for JOYSTICK - Remote control acknowledge of JOYSTICK mode. - Propeller RPM feedback signal - Steering feedback signal - Power reduced signal

Autopilot interface

The remote control is provided with interface for an Autopilot system.

Signal required from the Autopilot: - Steering control signal  -10VDC for 30 degrees, turning clock wise

0VDC for straight ahead 0 degrees.

+10VDC for 30 degrees, turning counter clock wise

The signal to be galvanic isolated at the AP system

Signal available to the AP system: - Closing contact (potential free) when the remote control is ready for AP.

ACON Interface

The remote control is provided with interface for an ACON Automation system.

Communication is via Ethernet.

(Other automation system will be interfaced through serial line or hardwired signals)

Signal available to the ACON system: - Thruster alarms. - Thruster running. - Steering feedback signal  - Propeller RPM feedback signal