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Cetrek Propilot 725 Installation & Servicing Manual

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PILOT
All of us at Cetrek would like to welcome you to the world of
Cetrek Propilot Systems.
THE USE OF AN AUTOPILOT DOES NOT AVOID THE
NEED FOR NORMAL WATCHKEEPING.
This product has been designed to be compliant with the
above Directive.
Maximum performance and compliance with the EMC
Directive can only be ensured by correct installation. It is
strongly recommended that the installation conforms with
the following Standards:
SMALL CRAFT - ELECTRICAL SYSTEMS:
a ) ISO 10133 - Extra Low-Voltage DC Installations
b ) ISO 13297 - Alternating Current Installations (Draft)
ISO- International Standards Organisation
The information contained in this manual is believed to be accurate at
the time of going to print but no responsibility, direct or consequential,
can be accepted by Cetrek Ltd for damage resulting from the use of
this information. Cetrek Ltd reserve the right to make changes
without notice to any of its products.

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Summary of Contents for Cetrek Propilot 725

  • Page 1 PILOT All of us at Cetrek would like to welcome you to the world of Cetrek Propilot Systems. THE USE OF AN AUTOPILOT DOES NOT AVOID THE NEED FOR NORMAL WATCHKEEPING. This product has been designed to be compliant with the above Directive.

  • Page 2: Table Of Contents

    NMEA 0182 & 0183 ......18 NMEA 0183 ....... 18 Windvane Equipment ......19 Gyro Equipment ......19 PROPILOT 725 FRONT PANEL (KEY) FUNCTIONS ..20 INSTALLATION SETTINGS ...... 22 Rudder Phasing ......22 Motor Phasing ......22 Rudder Feedback Unit Offset ....23 Compass Alignment ......
  • Page 3 Navigator Gain ......25 External Alarm ......26 Gyro Compass Control ......26 Gyro Type or Gyro Ratio ....... 27 CONFIGURING YOUR PROPILOT 725 ..... 28 The Settings Explained ...... 28 Counter Rudder ......28 T r i m ........29 Rudder Ratio Gain ......

  • Page 4: The System

    PILOT The System...
  • Page 5 PILOT The System A basic system consists of the following: • a Distribution Box (930 618) to collect, process and output information. • a Compass Sensor (930 577) to provide heading information. • an Autopilot Control (930 725) for the helmsman to control t h e a u t o p i l o t .

  • Page 6: Installing Your Propilot 725

    PILOT Installing your Propilot 725 pilot Hole positions 113 x 238 mm (4.45" x 9.37") Cut-out for back 110 x 237 mm (4.33" x 9.33"), corners 13 mm (0.51") x 45º NOTE: Also allow adequate clearance for cable connections to ensure cables...
  • Page 7 PILOT Installing your Propilot 725 Before commencing the installation of your new pilot please carry out the following initial checks: • that the correct items have been delivered ? • that the units are undamaged ? • that the correct voltage drive unit has been supplied ? •...
  • Page 8 PILOT Installing your Propilot 725 information for fuse ratings. This is the heart of the system and must be installed in a DRY, a c c e s s i b l e p o s i t i o n .
  • Page 9 S e a T r i a l s s e c t i o n . Further instructions on the location of the compass sensor are included with each compass sensor despatched from Cetrek’s f a c t o r y .
  • Page 10 PILOT Installing your Propilot 725 The rudder amidships position of the Rudder Feedback Unit can be mounted up to 10º out. As mentioned this can then be c o m p e n s a t e d f o r e l e c t r o n i c a l l y , s e e I n s t a l l a t i o n S e t t i n g s .
  • Page 11 PILOT Installing your Propilot 725 hydraulic steering systems. Hydraulic pumps should be mounted on a rigid base to avoid unnecessary vibration and noise. The heavy duty supply should be fused according to the drive u n i t f i t t e d :...
  • Page 12 All the connections for the system are made to the PCB in the Distribution Box which is clearly marked to make connections easy and straightforward. Most Cetrek systems use a plug and socket interconnect system that allow the plugs to be simply removed if the cable needs to...
  • Page 13 I n c o r r e c t w i r i n g ( e .g . r e v e r s e p o l a r i t y ) c a n c a u s e i r r e p a r a b l e damage to some equipment and is not covered by the Cetrek...

  • Page 14: Installation Schematic

    PILOT Installation Schematic...
  • Page 15 930-618 unit. Motor Connections Ensure L4 is in the ‘PWM’ position. The 930-618 can be connected with any of the drives that Cetrek supplies. Phasing can be reversed electronically once the system is installed. See “Installation Settings” for further details.

  • Page 16: Installing Optional Equipment

    Instructions with each individual unit as is appropriate for the equipment. The Installation Schematic in this manual covers the wiring connections of optional equipment. Non Cetrek equipment will usually interface with your Autopilot if you follow these instructions. The autopilot can be controlled with data received from a radio navigator (Sat Nav, Loran, Decca or GPS) which has a compatible output format.
  • Page 17 PILOT Installing Optional Equipment The data available for your Autopilot depends on the data format, provided by the Navigator, see following table: D a t a a v a i l a b l e Data Format NMEA 0180 NMEA 0182 N M E A 0 1 8 3 Cross Track Error Alarm Condition Heading to Waypoint...
  • Page 18 PILOT Installing Optional Equipment been selected. Because of this, the operation when waypoints are reached will depend on the type of data received from your n a v i g a t o r . Unless there is only a small (say 15º or less) change in required track, it is necessary to turn the vessel to the new track using the course select control or by placing pilot in standby mode and manually steering to the new track.
  • Page 19 Analogue Windvanes connect to the Analogue Windvane position in the Distribution Box. You will need a Cetrek 930-523 Gyro Interface to enable you to connect a Gyro compass. Full instructions come with the kit which connects to the Distribution Box via the ‘COMPASS B’...
  • Page 20 PILOT Front Panel (Key) Functions 1 . Adjust LCD backlighting When within a function used to switch functions or to adjust settings. 1 . Dodge to Port 1 . Dodge to Starboard 1 . Select Autopilot Mode 1 . Rudder Position & Off Course Indicator 2 .
  • Page 21 PILOT Front Panel (Key) Functions 1 . Cycles through Sea State Adjustments - Pilot A, B or C PILOT A 1 . RUD--05 Rudder Ratio Press & hold to enter Configurations: 2 . RESP--07 Response (Yaw) CONFIG 3 . PWM--ON 1 .

  • Page 22: Installation Settings

    PILOT I n s t a l l a t i o n S e t t i n g s There are four installation settings which are as follows: • Rudder phasing of the Rudder Feedback Unit. • Motor phasing. •...

  • Page 23: Reset

    PILOT I n s t a l l a t i o n S e t t i n g s This allows a rudder offset of 10º maximum to be input so that the rudder amidships position signal from the Rudder Feedback Unit can be fine tuned without physically moving the Rudder Feedback Unit.
  • Page 24 PILOT I n s t a l l a t i o n S e t t i n g s This is the window to enter a local compass variation to give a true compass heading. Press the COMP key until the LCD displays COMP ON (or COMP OFF) and then release.
  • Page 25 Use th eys to select: 0 - for Cetrek Analogue format. 1 - for Cetrek Analogue (Reversed Phase) format. 2 - for a NMEA 0183 format 3 - Not used. If an NMEA Windvane is connected to the NAV2 position both the NAV2 and the WIND formats must be set to NMEA 0183.
  • Page 26 PILOT I n s t a l l a t i o n S e t t i n g s the NAV key will bring up the Navigator Gain settings which can then b e a l t e r e d u s i n g the keys.
  • Page 27 COMP key will RATIO then display the Gyro Ratio option. The settings are: 0 - 360:1 1 - 180:1 2 - 90:1 Use the keys to change the setting to the correct ratio. Turn the Propilot 725 off to store the setting.
  • Page 28 This is done initially when the system is installed but you may be able to fine tune it later. The Propilot 725 has default settings for three types of boat, Planing, Semi-displacement and Displacement. For each of these boat types there is a standard configuration preprogrammed into the autopilot's memory.
  • Page 29 PILOT Configuring Your Propilot 725 Theoretically if the rudder is amidships the vessel will travel in a straight line. Often something will cause the vessel to drag TRIM--04 to one side, for example the wind, towing something or current. To counteract this a few degrees of rudder will be applied, this is termed Trim or Standing Helm.
  • Page 30 PILOT Configuring Your Propilot 725 R D B -- 0 3 Some steering systems have slack in them due to wear or system design which gives a few uncontrolled degrees of rudder movement. To stop the autopilot trying to correct...
  • Page 31 V a r i a t i o n ....00 Power Steer Gain ..05 The configuration settings enable the Propilot 725 to be adjusted according to sea state, speed, the vessel's load, etc. The table overleaf shows the factory settings for each...
  • Page 32 PILOT Configuring Your Propilot 725 These settings vary, depending on the hull configuration s e l e c t e d : FACTORY SETTINGS PILOT A PILOT B PILOT C Rudder Ratio Counter rudder Rudder Ratio Counter rudder Rudder Ratio...
  • Page 33 PILOT Configuring Your Propilot 725 R E S T O R E Press either the key at this display to select the values that were stored when the autopilot was last switched off. This is useful if you are experimenting with different s e t t i n g s .
  • Page 34 PILOT S e a T r i a l s With the installation completed, it is strongly advised that the f o l l o w i n g S e a T r i a l s a r e c a r r i e d o u t . Ensure that the steering moves freely from lock to lock without undue stiffness and that it can move to its full travel without the Rudder Feedback arms fouling the steering.

  • Page 35: Compass Damping

    PILOT S e a T r i a l s Ensure that the transit screw in the base of the compass sensor has been removed, shortened or replaced if it has been exposed to the elements and check that the compass heading agrees with the ship’s heading.
  • Page 36 PILOT S e a T r i a l s It is also advised that the optimised settings are recorded, in case they are accidentally changed at any time. The compass has a facility to automatically measure and compensate for the majority of hard and soft iron deviation found on board a vessel.
  • Page 37 PILOT S e a T r i a l s R U N N I N G After 60º of turn the LCD will change to display RUNNING. Continue the slow clockwise turn until the LCD changes to display CORRECT, usually 2¼ turns. If the display still indicates RUNNING then the vessel has been turned too quickly and requires an additional turn at a slower r a t e .
  • Page 38 PILOT System Description An Installation Schematic showing all possible connection options is shown on page 14. FS1-3 amp, QB, Ø5mm x 20mm cartridge, (Light Duty Ships Supply Input). FS2-5 amp, QB, Ø5mm x 20mm cartridge, (Clutch output). FS3-1,25 amp, QB, Ø5mm x 20mm cartridge, (Motor Supply logic). (Operation at or above the Absolute Maximum ratings may cause permanent damage to the equipment.) Maximum Supply Voltage:...
  • Page 39 PILOT System Description Operating Temperature (Ambient): 0 to 55°C The software is stored in the EPROM, IC 11. To change the eprom, first disconnect any power to the Distribution Box. Remove the cover and internal RFI shield. IC11 is located in the centre of the PCB, replace the existing eprom with the new one, being certain that pin 1 is in the correct position (away from the motor connection block) and that no pins are bent or miss their...
  • Page 40 PILOT System Description Switch to the ON position when using a Rudder Feedback Unit that has no integral limit switches, i.e. 930-807. Switch to the OFF position when using a Rudder Feedback Unit that has integral limit switches, i.e. 930-801. Switch to the ON position when a Navigator with a single wire output is connected to the NAV1 port.
  • Page 41 PILOT Troubleshooting Guide Press the OFF key to regain manual control. 1 . Do not connect or disconnect wiring to the terminal blocks without first ensuring that the supply is turned off. Certain components will be seriously damaged if shorted out i n a d v e r t e n t l y .
  • Page 42 PILOT Troubleshooting Guide 2 . T h e d i s p l a y The Fail Safe Watchdog is causing system power down. A fatal works momentarily fault has been detected on the Distribution Box PCB. Remove then blanks and the top cover and internal RFI shield from the Distribution Box.
  • Page 43 PILOT Troubleshooting Guide 6 . T h e a u t o p i l o t and Fault Messages” after this. powers up but d i s p l a y s a S y s t e m Fault which c a n n o t b e r e s e t .
  • Page 44 Here are the messages that we hope you will never see, along with some explanations and some tips on what to do before you call your Cetrek dealer. In an EMERGENCY press the ‘OFF’ key to regain manual control WARNING MESSAGES ONLY...
  • Page 45 PILOT Error and Fault Messages ERROR This means that there is a Back-up memory fault. Switch the unit off and start again. If this recurs then the Compass Sensor PCB has developed a fault. This message only appears in the Deviation Correction page.
  • Page 46 PILOT Error and Fault Messages SFLT NOVRAM CHECKSUM ERROR • This fault may indicate that the Autopilot's stored parameters are no longer valid, these should be checked before further use. SFLT PORT ‘A’ HANDSHAKE ERROR • This is likely to indicate that the port A handshake has been incorrectly selected.
  • Page 47 • T h i s i n d i c a t e s a s e r i o u s h a r d w a r e m a l f u n c t i o n , i f i t p e r s i s t s a n d cannot be cleared a Cetrek Distributor should be consulted.
  • Page 48 PILOT Error and Fault Messages SFLT RUDDER FEEDBACK AMPLIFIER FAULT • This indicates a serious hardware malfunction, if it persists and cannot be cleared a Cetrek Distributor should be consulted.
  • Page 49 PILOT If you do ever need to contact your Cetrek Dealer or Distributor, it would save time if you could make a note of the following d e t a i l s f o r t h e m :...
  • Page 50 PILOT...
  • Page 51 PILOT Absolute Maximum Ratings ..38 Fail Safe Watchdog ..... 42 Alarm, SFIA/External ..24, 26 Fault Messages ....44 Alignment, of Compass ..23 F i e l d E f f e c t T r a n s i s t o r ( F E T ) ..39, 43 Automatic Deviation Correction ..
  • Page 52 Operating Temperature ..38 Temperature Optional Equipment .... 24 Operating ....38 Optional equipment .... 16 Storage ....38 Overshooting ....28 Transmitting aerials ..... 12 T r im ....17, 29, 31, 35 Troubleshooting ....42 True Heading ....18 Phasing ....

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