Raymarine Autohelm ST7000 Installation Instructions Manual
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Raymarine Autohelm ST7000 Installation Instructions Manual

Raymarine Autohelm ST7000 Installation Instructions Manual

Raymarine st7000: install guide
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ST7000 Installation

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Summary of Contents for Raymarine Autohelm ST7000

  • Page 1 ST7000 Installation...
  • Page 2 Autohelm Autohelm Autohelm Autohelm ® ® ® ®...

  • Page 4: Table Of Contents

    Contents System Description 1.1.1 Course Computer 1.1.2 Control Unit 1.1.3 Fluxgate Compass 1.1.4 Rudder Reference Transducer 1.1.5 Auxiliary Alarm 1.1.6 Masthead Transducer 1.1.7 Type CR Interface Unit Drive Systems 1.2.1 Rotary Drive 1.2.2 Linear Drive 1.2.3 Hydraulic Drive 1.2.4 Constant Running Power Pack 1.2.5 Sterndrive Installation...

  • Page 6: System Description

    1. System Description The ST7000 is a modular automatic pilot system that can be built up to match the individual requirements of all types of vessels. A range of high efficiency rotary, linear, and hydraulic rudder drive units are available to match all types of steering systems.

  • Page 7: Course Computer

    1.1.1 Course Computer (Cat. No. Z083-12V Cat. No. Z084-24V) The course computer houses the microprocessor, electronic control circuitry and power amplifier for the drive unit. The course computer is splash proof only and must be mounted in a dry and protected position.

  • Page 8: Rudder Reference Transducer

    1.1.4 Rudder Reference Transducer (Cat. No. Z131) The rudder reference transducer provides the course computer with a precise rudder position. It is mounted on a suitable base adjacent to the rudder stock. The interconnecting cable connects directly to the course computer connector unit. 1.1.5 Auxiliary Alarm (Cat.

  • Page 9: Type Cr Interface Unit

    1.1.7 Type CR Interface Unit (Cat. No. Z085) A standard ST7000 course computer can be connected to the solenoids on a constant running hydraulic power pack using the Type CR Interface Unit. The unit also provides connections to energise a solenoid operated bypass valve if...

  • Page 10: Drive Systems

    1.2 Drive Systems The ST7000 offers a choice of Mechanical or Hydraulic Drive Units. All vessels with hydraulic steering will require a hydraulic drive unit (see section 1.2.3). Mechanical steering systems may be driven with either a rotary or linear drive unit. If space permits...

  • Page 11: Linear Drive

    1.2.2 Linear Drive Units The Autohelm Linear Drive Units are of outstanding design which features powerful thrust, fast hard overtimes and near silent operation. When backdriven the movement is smooth with minimal backdrive force. Using a high tensile belt Type 1 Supply Voltage 12 volts Peak Thrust...

  • Page 12: Hydraulic Drive

    1.2.3 Hydraulic Drive Units Two reversing hydraulic drive units are available depending on the size of the vessel and the displacement of the ram. vessel size recommendations given below apply to directly driven steering systems. When a power steering system is fitted the vessel size and displacement recommendations can be ignored.

  • Page 14: Constant Running Power Pack

    1.2.4 Constant Running Power Pack When steering loads require a ram capacity above 400cc (24in ) the Autohelm Constant Running Power pack provides the ideal autopilot drive system. Hydraulic fluid is provided from a self contained reservoir and flow to the steering ram is controlled by integral solenoid operated valves.
  • Page 15 3 to select the appropriate hydraulic power pack. Note: If power packs other than the Autohelm models are used with the ST7000 the following solenoid specifications must comply- Pull in Voltage - less than 8V (16v for 24v...
  • Page 16 1.2.5 Sterndrive The Sterndrive Actuator must only be used on sterndrives with cable operated power assisted steering. The drive unit operates the power steering valve identically to the steering cable. A clutch disengages the drive unit to allow manual steering when the autopilot is disengaged.

  • Page 17: Installation

    2. Installation 2.1.1 Course Computer Mounting Position - Below Deck The course computer should be positioned in a dry protected area of the vessel free from high operating temperatures and excessive vibration. It can be mounted in any attitude. Care must be taken to allow at least 150mm (6in) clearance all round to aid heat dissipation from the power amplifier in the unit.

  • Page 18: Control Unit

    2.1.2 Control Unit The control units must be mounted close to the steering stations and are designed for above or below deck installation. Position them where they are:- • Reasonably well protected from physical damage. • At least 230mm (9in) from a compass. •...

  • Page 19: Rudder Reference Transducer

    Installation Precautions Correct installation of the course computer and fluxgate compass is vital to the successful performance of the ST7000. 2.1.4 Rudder Reference Transducer The rudder reference unit must be mounted on a suitable base adjacent to the rudder stock (Fig.9) using the self tapping screws provided.

  • Page 20: Auxiliary Alarm

    The rudder reference arm movement is limited to ± 60 deg. Care must be taken during installation to ensure the rudder reference arm is opposite the cable entry when the rudder is amidships. Failure to do this could result in damage if the rudder reference arm is driven onto its end stops by the steering system (Fig.

  • Page 21: Masthead Transducer

    10 second and 14 second Hardover-Hardover times for the Type I and Type 2 drive units respectively. If the vessel is thought to have unusual steering characteristics, Raymarine's Product Support Department or one of our authorised representatives should be contacted for advice.
  • Page 22 The drive unit is mounted by bolting to a substantial frame member (Fig. 16). mounting foot is secured to the drive unit by four equally spaced caphead screws and may be rotated through 90 deg. convenient mounting position if required (Fig. 17). In some cases, it may be necessary to fabricate a special frame to mount the drive unit., It should be noted that chain tension can exceed 230Kgs...

  • Page 23: Linear Drive

    Both sprockets must be accurately aligned to run in the same plane and correct alignment must be carefully checked by means of a straight edge. The gearbox may be mounted in any convenient attitude. In addition, the drive sprocket may face any direction since steering sense can be corrected when the installation is complete by reversing the polarity of the drive motor...

  • Page 24: Hydraulic Drive

    The mounting bracket should be bolted to a substantial frame number. Always over engineer to ensure reliability and maintenance of correct alignment. Installation The pushrod ball end must be attached to the tiller arm using the fixing bolt supplied with its flange positioned between the ball end and the tiller arm (Fig.
  • Page 25 When the installation has been completed the hydraulic pump may be operated by switching the control unit to Auto and operating the + 10 deg. and - 10 deg course change buttons. Greater motor movements will be obtained if the rudder gain is set to maximum.
  • Page 26 Bypass Valve (Cat. No. Z079) (Fig. 25) If the autopilot operated hydraulic cylinder is independent of the manual steering system a solenoid operated bypass valve should be fitted to allow the cylinder to backdrive when manual steering. The bypass valve should be connected to the 'bypass' connector on the Type CR Interface Unit.

  • Page 27: Stern Drive

    2.2.4 Stern Drive Actuator The drive unit can be fitted to power assisted stern drive systems made by Volvo Penta, Mercruiser, OMC and Yamaha. A different installation kit is required for each manufacturer Volvo Penta Installation (Using D129 Kit, Fig. 26) The stern drive actuator should be connected to the centre hole on the tiller arm.
  • Page 28 • Uncouple the engine tie bar from the outdrive tiller arm by bending back the lock tabs and removing the cotter pin. This should be replaced with the multi-engine adaptor pin, ensuring that it is secured properly with a split pin* (Fig.28) (on single engine installation, fit the single engine adaptor pin in the vacant middle hole in the tiller arm).
  • Page 29 Mercruiser Installation (Using DI 37 Kit) (Also OMC &Yamaha) The drive unit should be mounted onto the tiller end block and the pushrod connected to the cable end sheath via a custom mounting bracket. The first stage of installation is to fit the custom bracket:- Mercruiser Bracket Mounting Kit (D137) Installation...
  • Page 30 Mounting in a Restricted Area If an obstruction prevents installation of the drive unit as supplied, the main body can be rotated relative to the mounting bracket as follows (Fig. 33): • Remove the 2 fixing screws and gently slide the cover forwards, ensuring that the four cables do not pull from the plus inside the cover.

  • Page 31: Cabling And Power Supplies

    2.3 Cabling and Power Supplies 2.3.1 Signal Cabling System Components Cable connections for all components are shown schematically in Fig. 1. All components, other than the Actuator motor, connect to the course computer connector unit where they are permanently wired to connector blocks mounted on a central printed circuit board (Fig.

  • Page 32: Connection To Other Seatalk Units

    The total length of interconnecting cable to the fluxgate should not exceed 20m (60ft). If it is necessary to exceed the above maximum length recommendation, please consult Raymarine's Product Support Department for specific advice. In general the length of interconnecting cables...

  • Page 33: Nmea Input

    0.5mm 2.3.4 D.C. Power Supplies and Drive Unit connections. The ST7000 requires two D.C. power supplies, one, a heavy duty supply (which connects via spade connectors to the end of the course computer) and secondly a light duty supply (which connects into the course computer connector box).
  • Page 34 Type 2 Drive Units Total Cable Copper Cable Type Area Length Up to 7m 56/0.3 4.0mm Up to 10m 84/0.3 6.0mm Up to 16m 84/0.4 10.0mm The two power supplies must be led separately from the main distribution panel and protected by circuit breaker as shown in Fig.39.

  • Page 35: Type Cr Installations

    2.3.5 Type CR Installations (Fig.40) The Type CR Interface (Cat. No Z085) must be used on all installations with constant running hydraulic power packs. The power supply is led to the course computer using the Interface Unit which has connections for the power pack solenoid valves, and the bypass valve if one is required.

  • Page 36: Stern Drive Actuator

    Solenoid Valve Power Supply Cable Length, Cable Course Type computer Power Pack Up to 7m 50/0.25 Up to 12m 56/0.3 Up to 17m 84/0.3 The solenoid valve connectors can only accept cable up to 2.5mm copper area. If larger cable is required a 0.5m tail of 2.5mm used to wire to the connectors.

  • Page 37: Functional Test

    Switch on the electrical supply from the main panel. All control units will emit a short beep tone and display 'ST7000'. Within 2 seconds Standby will be displayed to indicate the computer is active and the autopilot is in Standby mode.

  • Page 38: Mechanical Test - Sterndrive

    • The autopilot should again drive onto the endstop, alarm/display Release and return to standby. Note: If the ST7000 sounds the alarm and displays 'Release' before reaching the opposite lock carefully check the vessel's steering system for any stiffness or mechanical jamming.

  • Page 39: Calibration

    4. Calibration 4.1 Recommended Settings As supplied the ST7000 can be switched on and tested safely without any adjustments to the factory calibration settings. The table below lists the suggested settings for sailing and power displacement and planing power vessels.

  • Page 40: Adjusting Calibration

    4.3 Adjusting Calibration In calibration mode, the display button is used to scroll through the menu. The displayed value is adjusted using the Response buttons (hold button down for fast scroll). • Rudder Gain, levels 1 to 9 (see 5.5 & 5.6) •...

  • Page 41: Off Course Alarm

    • Off-Course Alarm, 15 to 40 deg. Angle • Automatic Trim (see 5.4). • Remote Control Identifier (For Future Use) • Manual Steering Lever Type • Autopilot Drive Unit Type • Rudder Position Deadband (levels 1 to 9), (See 3.6)

  • Page 42: Display Contrast Adjustment

    • Northerly/Southerly Heading Instability Select Hemisphere 0 (OFF) N (North) S (South) Enter Local Latitude using Response Keys. A typical display in the Northern Hemisphere would be: and in the Southern Hemisphere • Auto Release (see 3.8 & 5.7) 1 = ON The Auto Release facility is designed to provide Emergency Manual Override when used with the Autohelm Stern Drive Actuator.

  • Page 43: Permanent Watch Alarm

    Display to advance to the next menu level 4.5 Permanent Watch Alarm (SFIA) If the permanent watch alarm is required, please contact Raymarine's Product Support Department or authorised dealer for details. 4.6 Recording Calibration Settings Having fine-tuned the calibration settings during initial sea trials, record them in the following table for future reference.

  • Page 44: Initial Sea Trials

    4 (see 4.1). • Read the Operating Manual. 5.1 Automatic Deviation Correction The ST7000 will correct the fluxgate compass for any deviating magnetic fields. This should be carried out in calm conditions preferably in flat water.

  • Page 45: Automatic Trim Control

    5.4 Automatic Trim Control The ST7000 automatically corrects for trim. No adjustment of the pilot is necessary. After each course change the Automatic Trim is cancelled and the ST7000 will re-establish the correct trim for the new heading.

  • Page 46: Rudder Gain Adjustment (High Speed Planing Craft)

    ST7000 will return to Standby. Excessive force is not required and will not reduce this delay. With the ST7000 in Auto and clear of obstruction turn the steering wheel to observe the manual override. Repeat two or three times until you are confident with its operation.

  • Page 47: Compass Alignment

    5.9 Compass Alignment If it is necessary to change Compass Alignment without carrying out the Automatic Deviation Correction proceed as follows:- • Push and hold Standby for 1 second to select compass adjust mode. • Push Display once to bypass Automatic Deviation Correction •...

  • Page 48: Track Control

    6. Track Control Track control allows the ST7000 to maintain track between two waypoints entered on a GPS, Decca, Loran or satellite Navigation System. The Navigation System must have a suitable autopilot output which at minimum transmits cross track error to one of the following formats.
  • Page 49 As the vessel passes the target waypoint the navigation receiver should select, manually or automatically, the next target waypoint. The ST7000 will detect and display the bearing to the new waypoint whilst sounding an alarm to indicate waypoint arrival. Note: While the waypoint advance alarm is...

  • Page 50: Windvane Control (Sail Only)

    Note. The NMEA 0183 output must transmit VWR (Relative wind bearing). • Using an Autohelm ST50 wind instrument connected using the SeaTalk bus. The ST7000 uses Wind Trim to eliminate the effects of turbulence and short term wind variations provide performance under windvane with minimum power consumption.
  • Page 53 44321/5...
  • Page 55 Raymarine Ltd. Anchorage Park Portsmouth Hampshire PO3 5TD Tel +44 23 9269 3611 Fax +44 23 9269 4642 www.raymarine.com...

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