User manual AUTOHELM ST7000 PLUS AUTOPILOT CONTROL UNIT

[. . . ] Distributed by Any reference to Raytheon or RTN in this manual should be interpreted as Raymarine. The names Raytheon and RTN are owned by the Raytheon Company. ST7000 Plus Autopilot Control Unit Owner's Handbook Document number: 81118_1 Date: 20 January 1999 Preface i Raytheon Electronics, as part of its commitment to continuous improvement and updating, reserve the right to make changes, without prior notice, to the equipment, equipment specifications, and the instructions contained within this handbook. To the best of our knowledge, the information contained within this handbook was correct as it went to press. A great deal of care has been taken to ensure that this handbook is as accurate as possible. [. . . ] Refer to Chapter 6, Post Installation Procedures, for instructions on how to check that the rudder gain is set correctly. WARNING It is important that the rudder gain is correctly set on planing craft. Incorrect adjustment will lead to poor steering performance and is dangerous at high speeds. 3. 4 Alarms This section summarises the alarms that are reported by the ST7000 Plus. Unless otherwise stated, alarms can be cleared by pressing standby, to return to the Standby mode, i. e. hand steering. SeaTalk Failure SEATALK alternating with FAILURE This silent alarm indicates that the SeaTalk bus is not operating correctly. Can only be cleared by rectifying the fault. No Link NO LINK This silent alarm indicates either a faulty autopilot or a disconnection between the ST7000 Plus and the course computer. Can only be cleared by rectifying the fault. 30 ST7000 Plus Autopilot Control Unit Owner's Handbook Off Course OFF alternating with COURSE This alarm is activated when the vessel has been off course from the locked heading by more than the specified angle for more than 20 seconds (see Using Auto Mode in Chapter 2). The alarm is cleared if the heading recovers or the course is changed, or if the operating mode is changed. Wind Shift WIND alternating with SHIFT This alarm is activated when a change in the apparent wind angle requires an adjustment of the locked heading by more than 15° (see Operating in Wind Mode in this Chapter). Large Cross Track Error LARGE XTE This alarm is activated when the cross track error exceeds 0. 3 nm (see Operating in Track Mode in this Chapter). The alarm is cleared if the cross track error falls below 0. 3 nm, or if the operating mode is changed. Drive Stopped DRIVE alternating with STOPPED This alarm is activated if the autopilot is unable to turn the rudder. This occurs if the weather load on helm is too high, or if the requested rudder position is past the preset rudder limits or the rudder end-stops. Data Not Received NO DATA This alarm is displayed in the following circumstances: · Track mode is engaged and the autopilot is not receiving SeaTalk navigation data. Chapter 3: Advanced Operation 31 · Track mode is engaged and the position transducer (GPS, Loran, Decca) is receiving a low strength signal ­ this will clear as soon as the signal strength improves. · Wind mode is engaged and the autopilot has not received wind angle data for 30 seconds. The autopilot stops adjusting the locked heading as soon as data is lost. Waypoint Advance NEXT WPT The waypoint advance alarm sounds whenever the target waypoint number changes, which occurs in the following circumstances: · Automatic acquisition is selected by pressing track from Auto mode · Waypoint arrival. Vessel arrives at the target waypoint and moves onto the next waypoint in the route. · Waypoint advance is requested by pressing track for 1 second in Track mode (SeaTalk Navigators only). When the alarm sounds, the pilot continues on its current heading, but displays the bearing to the next waypoint and the direction in which the boat will turn to take up that bearing. Check that it is safe to turn onto the new track, and press track to accept the waypoint advance. To cancel the alarm without accepting the waypoint advance, press standby to return to hand steering, or auto to return to Auto. Note: The waypoint advance will only operate on pilots receiving valid bearing to waypoint and waypoint number information. Low Battery LOW alternating with BATTERY The Low Battery alarm sounds when the supply voltage drops below acceptable limits. Start the engine to recharge the battery. 32 ST7000 Plus Autopilot Control Unit Owner's Handbook Watch Alarm WATCH The Watch alarm is activated in Watch mode when the timer reaches 4 minutes. If you wish to set the Watch mode, the WATCH screen must be configured as one of the Data Pages (see User Setup in Chapter 4). · When the timer reaches 3 minutes, the text on the display starts flashing to indicate the last minute of Watch alarm. · When the timer reaches 4 minutes, the audible Watch alarm activates. Press auto at any time to silence the alarm and reset the timer to 4 minutes. [. . . ] Except where Raytheon Marine Company or its authorized dealer has performed the installation, it assumes no responsibility for damage incurred during installation. This Warranty does not cover routine system checkouts or alignment/calibration, unless required by replacement of part(s) in the area being aligned. A suitable proof of purchase, showing date, place, and serial number must be made available to Raytheon Marine Company or authorized service agent at the time of request for Warranty service. Consumable items, (such as: Chart paper, lamps, fuses, batteries, styli, stylus/drive belts, radar mixer crystals/ diodes, snap-in impeller carriers, impellers, impeller bearings, and impeller shaft) are specifically excluded from this Warranty. [. . . ]