Furuno SC-50S User manual

i
SAFETY INSTRUCTIONS
WARNING
Turn off the power at the switchboard
before beginning the installation.
Fire or electrical shock can result if the
power is left on.
Do not install the equipment where it
may get wet from rain or water splash.
Water in the equipment can cause fire,
electrical shock or damage to the equipment.
NOTICE
Observe the following compass safe
distances to prevent interference to a
magnetic compass:
Safety Instructions for the Operator Safety Instructions for the Installer
Standard
Compass Steering Compass
Display unit
SC-502 0.4 m 0.3 m
Processor unit
SC-501 0.9 m 0.6 m
Antenna unit
XXXXX????? X.X m X.X m
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
WARNING LABEL
A warning label is attached to the
processor unit. Do not remove the label.
If the label is missing or damaged,
contact a FURUNO agent or dealer
about replacement.
WARNING LABEL
Name: Warning Label (1)
Type: 86-003-1011-1
Code No.: 100-236-231
WARNING
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury can
result.
Immediately turn off the power at the
switchboard if the equipment is emitting
smoke or fire.
Continued use can cause fatal damage to
the equipment. Contact a FURUNO agent
for service.
Do not place liquid-filled containers on
the top of the processor unit.
Fire or electrical shock may result if the
liquid enters the equipment.
Use the proper fuse.
Use of a wrong fuse can damage the
equipment and cause fire.
CAUTION
No one navigation device should ever
be solely replied upon for the navigation
of a vessel.
Always confirm position against all avail-
able aids to navigation (incl. nautical charts),
for safety of vessel and crew.
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel
should work inside the
equipment.

ii
TABLE OF CONTENTS
FOREWORD ..................................................................................................................iv
SYSTEM CONFIGURATION...........................................................................................v
EQUIPMENT LIST..........................................................................................................vi
1INSTALLATION...................................................................................................... 1-1
1.1 Installing the Antenna Unit................................................................................................... 1-1
1.1.1 Mounting considerations for single antenna............................................................ 1-1
1.1.2 Mounting considerations for three antennas ........................................................... 1-4
1.1.3 Summary of installation conditions .......................................................................... 1-6
1.1.4 Mounting the antenna unit ..................................................................................... 1-10
1.2 Installing the Processor Unit...............................................................................................1-11
1.2.1 Mounting considerations.........................................................................................1-11
1.2.2 Bulkhead mount......................................................................................................1-11
1.2.3 Deck mount............................................................................................................ 1-12
1.2.4 Mounting on the underside of a desk .................................................................... 1-13
1.3 Installing the Display Unit .................................................................................................. 1-14
1.3.1 Mounting considerations........................................................................................ 1-14
1.3.2 Desktop, overhead mounting................................................................................. 1-14
1.3.3 Flush mount ........................................................................................................... 1-15
1.4 Wiring................................................................................................................................. 1-16
1.5 Initial Settings .................................................................................................................... 1-19
1.5.1 Confirming satellite status...................................................................................... 1-19
1.5.2 Choosing processor unit mounting method........................................................... 1-20
1.6 Connection of External Equipment.................................................................................... 1-21
1.6.1 General wiring........................................................................................................ 1-21
1.6.2 Fabrication of cables.............................................................................................. 1-22
2OPERATION........................................................................................................... 2-1
2.1 Controls ............................................................................................................................... 2-1
2.2 Turning the Power On/Off.................................................................................................... 2-2
2.3 Panel Illumination, Display Contrast.................................................................................... 2-2
2.4 Choosing a Display..............................................................................................................2-3
2.4.1 Description of displays............................................................................................. 2-3
2.5 Alarm Setup ......................................................................................................................... 2-6
2.6 Confirming Satellite Status .................................................................................................. 2-7
2.7 GPS Setup........................................................................................................................... 2-8
2.7.1 Displaying the GPS setup menu.............................................................................. 2-8
2.7.2 GPS SETUP menu description................................................................................ 2-8
2.8 Output Data ......................................................................................................................... 2-9
2.8.1 Heading.................................................................................................................... 2-9
2.8.2 Log pulse ............................................................................................................... 2-13
2.9 System Setup ....................................................................................................................2-14
2.9.1 Geodetic data......................................................................................................... 2-14
2.9.2 Units of measurement............................................................................................ 2-15
2.9.3 Using local time...................................................................................................... 2-15
2.9.4 Time format ............................................................................................................ 2-15

iii
2.9.5 Demonstration mode ............................................................................................. 2-16
2.10 WAAS/DGPS Setup........................................................................................................... 2-17
2.11 OTHERS Menu.................................................................................................................. 2-20
2.12 TRIP Menu......................................................................................................................... 2-21
2.13 Resetting Distance Run..................................................................................................... 2-22
2.14 Choosing External Heading Source for Backup................................................................ 2-22
3MAINTENANCE, TROUBLESHOOTING................................................................3-1
3.1 Preventive Maintenance ...................................................................................................... 3-1
3.2 Troubleshooting ................................................................................................................... 3-2
3.3 Diagnostics .......................................................................................................................... 3-3
3.4 Program Number ................................................................................................................. 3-7
3.5 Clearing Data....................................................................................................................... 3-7
3.6 Replacement of Battery ....................................................................................................... 3-8
3.7 Replacement of Fuse .......................................................................................................... 3-9
3.8 Error Messages ................................................................................................................... 3-9
APPENDIX......................................................................................................................1
Menu Tree.........................................................................................................................................1
Geodetic Chart Codes......................................................................................................................2
Principle of Satellite Compass..........................................................................................................3
What is WAAS? ................................................................................................................................4
INDEX ..........................................................................................................................3-1

iv
FOREWORD
A Word to the Owner of the SC-50S
FURUNO Electric Company thanks you for purchasing the FURUNO SC-50S
THD Satellite Compass. (Hereafter, for sake of brevity, we refer to the SC-50S
as Satellite Compass.) We are confident you will discover why the FURUNO
name has become synonymous with quality and reliability.
For over 50 years FURUNO Electric Company has enjoyed an enviable
reputation for quality and reliability throughout the world. This dedication to
excellence is furthered by our extensive global network of agents and dealers.
Your satellite compass is designed and constructed to meet the rigorous
demands of the marine environment. However, no machine can perform its
intended function unless properly installed and maintained. Please carefully read
and follow the operation, installation and maintenance procedures set forth in
this manual.
We would appreciate feedback from you, the end-user, about whether we are
achieving our purposes.
Thank you for considering and purchasing FURUNO.
Features
The SC-50S is a new satellite compass designed with FURUNO’s advanced
GPS kinematic technology. This compass finds a wide range of applications for
any type of ships and mobile units at sea or on land.
The main features are
• Perfect for use as heading sensor for Radar/ARPA, AIS, ECDIS, scanning
sonar
• There are no mechanical parts such as gimbals or rotating motor, thus the
compass is free from routine maintenance
• The performance is not affected by geomagnetism thus it is suitable for use on
any vessel
• No need for speed correction like a gyrocompass
• Short settling time - three minutes
• Meets the following requirements: IMO MSC. 116(73), ISO/FDIS 22090-3,
IMO A. 694(17), IEC 60945 (2002-08), IEC 61162 (2000).

v
SYSTEM CONFIGURATION
The SC-50S consists of three antennas, a display unit and a processor unit.
Display Unit
SC-502
: Option
12-24 VDC
External heading data
6 ports for Heading or Navigation Data
(5 AD-10/IEC 61162 ports, 1 AD-10 port)
External DPGS
Beacon Receiver
Processor Unit
SC-501
Analog roll
Analog pitch
Log/Heading alarm
(Contact)
Category of Units
Processor Unit: Protected from weather
Display Unit: Protected from weather
Antenna Unit: Exposed to weather
Antenna Unit
?????? (x3)
System configuration

vi
EQUIPMENT LIST
Standard supply
Name Type Code No. Qty Remarks
GPS Antenna ????? 1 Set of three
Display Unit SC-502 1
Processor Unit SC-501 1
CP20-02230* 004-378-110 TPPX cable
CP20-02260* 004-379-660 1 TNC cable
CP20-02600 000-041-905 1
For processor unit:
CP20-02601*,
MJ-A7SPF0006-100
Installation
Materials
CP20-02203* 004-380-660 1 For display unit:
Tapping screw (5X20 4 pcs.)
Spare Parts SP20-01101* 004-379-720 1 For processor unit
Optional supply
Name Type Code No. Qty Remarks
CP20-01700 004-372-110 30 m
Antenna
Cable Set CP20-01710 004-372-120 1 50 m
3 sets
required
Cable Assy. TPPX6-3D2V-15M 000-143-559 1 Antenna cable
Flush Mount F OP20-29* 000-041-405 1 For display unit
Flush Mount S OP20-17* 000-040-720 1 For display unit
Bird-repellant
Fixture OP20-37????? 004-380-840 1 Set of three?????????
* See packing list at back of manual.

1-1
1 INSTALLATION
1.1 Mounting the Antenna Unit
1.1.1 Mounting considerations for single antenna
General
• Keep the length of the antenna cable in mind when selecting a mounting
location. Do not shorten the antenna cable.
• The location should not be where movement is different from ship’s
movement.
Installing the antenna above superstructures
The antenna must be mounted above all other structures on the vessel to obtain
an unobstructed view of the satellites, regardless of vessel heading. Failure to
do so will cause shadows and multipath reflection problems.
Mast
Radar Antenna
Bridge
Antenna
Example of antenna installed above all superstructures
Installing the antenna below superstructures
If it is not possible to mount the
antenna above all superstructures on
the vessel, as shown in the illustration
above, shading and multipath
problems may occur on at least one
heading, and possibly more. To
possibly avoid those problems,
observe the guidelines in this section.
NOTICE
If the antenna is installed below any
superstructure, the installation must
be done over a two-day period, following
the procedure in the service manual.
At least 12 hours are required to capture
tracking data to measure multipath indexes
and locate areas of shading.

1. INSTALLATION
1-2
Antenna placement and shipboard equipment and structures
• The horizontal separation between the antenna and masts must be as follows:
Mast diameter Separation distance (minimum)
10 cm 1.5 m
30 cm 3 m
Mast, etc.
SC-50S's
antenna
Horizontal
separation
distance
Less than 10°
Mast, etc.
TOP VIEW
Horizontal separation between antenna and masts
• The field of view above the antenna should be as shown below, ±80° against
zenith. To avoid reflections from masts and the like, locate the antenna well
away from the shadows of the radar mast, etc.
Zenith
-80°+80°
Antenna
SIDE VIEW
Antenna and field of view
• Locate the antenna unit above the radar antenna, out of the radar beam.
Antenna
Radar Antenna

1. INSTALLATION
1-3
Radar Antenna
Antenna
Bridge
Reception blocked by mast.
Location influenced
by reflected wave.
Example of antenna installed below superstructures

1. INSTALLATION
1-4
1.1.2 Mounting considerations for three antennas
1) Install antenna unit GPS1 where it meets the requirements for single
antenna.
2) Install antenna unit GPS2 where it meets the following conditions:
• The mounting location shall meet the requirements for single antenna.
• GPS2 shall be closer to the bow than GPS1.
• The distance between GPS1 and GPS2 shall be more than 50 cm and within
the 5 m.
• The distance between GPS1 and GPS2 shall not change by more than 1 cm.
• There shall be no interfering objects between GPS1 and GPS2.
• If the GPS1 and GPS2 cannot be installed perpendicular to one another, the
angle between the two shall be ±30°. The amount of offset in the bow direction
shall be manually input into the equipment as heading offset.
• The angle between GPS1 and GPS2 shall not exceed ±30°.
Abeam view
GPS1
GPS2
Within ±30°
Horizontal
More than 50 cm
within 5 m
GPS1
BOW
No interfering
object in
this area
GPS2
More than 50 cm
and within 5 m
Closer to bow than GPS1
Overhead view
Both antenna aligned with bow.
Further, alignment error should
be within
±30°. Correct error
with offset.
Conditions for mounting antenna unit GPS2

1. INSTALLATION
1-5
3) Install GPS3 where the following conditions are satisfied:
• Install GPS3 where it meets the requirements for single antenna.
• GPS3 shall be closer to the bow that GPS2 but not closer to the bow than
GPS1.
• The distance between GPS1 and GPS3 shall be more than 50 cm and within
the 5 m.
• The distance between GPS2 and GPS3 shall be more than 50 cm and within
the 5 m.
• The distance between all three antennas shall not change by more than 1 cm.
• The vertical length between baseline 1 (from GPS1 to GPS2) and baseline 2
(from GPS1 to GPS3) shall be more than 50 cm.
• The vertical length between baseline 2 (from GPS1 to GPS3) and baseline 1
(from GPS1 to GPS2) shall be more than 50 cm.
• The angle formed by GPS1, GPS2 and GPS3 shall be no more than 90°
• The angle from the GPS1 to GPS3 shall not be more than ±30°.
GPS2
GPS1
GPS1
Horizontal
GPS3
GPS2
More than 50 cm
More than
50 cm
Baseline 1
GPS1
BOW
BOW
Baseline 2 Within
90
°
No interfering
object in this area
More than 50 cm
and within 5 m
GPS3
More than 50 cm
and within 5 m
Overhead view Overhead view
More than 50 cm
and within 5 m
Within
± 30 °
GPS3
Closer to bow than GPS1;
Closer to stern than GPS2
Abeam view
Conditions for mounting antenna unit GPS3

1. INSTALLATION
1-6
1.1.3 Summary of mounting conditions
1) All three antennas meet the requirements for single antenna. See
“Conditions for mounting single antenna” on page 1-1.
2) Antenna unit GPS1 should be the antenna closest to the stern.
3) Antenna unit GPS2 should be the antenna closest to the bow.
4) The distance between each antenna should be more than 50 cm and less the
5 m.
5) The distance between antennas should not change by more than 1 cm.
6) No interfering object should be within the triangle formed by the three
antennas.
7) If the direction from GPS1 to GPS2 is seen as a horizontal plane, then they
are aligned with the bow. If not, they should be located within ±30° from the
bow. The amount of offset in the bow direction should be entered in the
equipment as heading offset.
8) The vertical length between baseline 1 (from GPS1 to GPS2) and baseline 2
(from GPS1 to GPS3) shall be more than 50 cm.
9) The vertical length between baseline 2 (from GPS1 to GPS3) and baseline 1
(from GPS1 to GPS2) shall be more than 50 cm.
10) The angle which is formed by GPS1-GPS2-GPS3 should be within 90°.
11) The angle between two antennas should not exceed 30°.
Basic antenna arrangement
• Viewing from overhead, the basic arrangement should look as below.
• When viewed from abeam, the plane formed by the three antennas is parallel
with ship.
GPS1
GPS2
GPS3
Top view
More than 50 cm
and within 5 m
More than 50 cm and within 5 m
More than 50 cm
and within 5 m
Basic antenna arrangement (view from overhead)

1. INSTALLATION
1-7
Prohibited antenna arrangement
Looking from overhead, the three antennas are arranged in a straight line. This
arrangement is prohibited.
Overhead view
GPS3
GPS1
GPS2
Prohibited antenna arrangement (three antennas in a straight line)

1. INSTALLATION
1-8
Examples of proper and improper antenna arrangements
3 2
1m
1m
1m
1
3
2
2 3
2m
1m
2.24m
1
3
2
10°
3 3
22
Ideal arrangement
Suitable arrangement
(View from top of ship) (View from side of ship) (View from bow of ship)
(View from top of ship) (View from side of ship) (View from bow of ship)
11
1
1
Parallel with
ship
3m
1m
2m
1
3
2
33
2 2
2
1.2m
1.2m
1m
3
3
1
2
Manual input of heading offset
is required.
Suitable arrangement
(View from top of ship) (View from side of ship) (View from bow of ship)
1
5
°
3 °
1
Improper arrangement
Heading offset
-24.6°
1
1
(View from top of ship) (View from side of ship) (View from bow of ship)
*Enter accurate heading offset.
Otherwise heading will be in error.
3

1. INSTALLATION
1-9
3m
1m
4m
1
3
22323
2m
2323
3m
1m
1
3
2
GPS1 is not the antenna closest to stern
Improper arrangement
145 °
1
15
°
25 °
(View from top of ship) (View from side of ship) (View from bow of ship)
Improper arrangement
(View from top of ship) (View from side of ship) (View from bow of ship)
1
30 °
45 °
1
Roll and pitch angles too large
1
4m
2
323
4m
4m
1
3
2
6m
1m
5m
1
3
2
Distance between antennas
is more than 5 m
1
Interfering object within triangle formed by three antennas
2
3
1
3
2
(View from top of ship) (View from side of ship) (View from bow of ship)
(View from top of ship) (View from side of ship) (View from bow of ship)
Improper arrangements

1. INSTALLATION
1-10
2m 1m
1 3 2
1m
1
Three antennas in straight line
Two antennas perpendicular to one another
(View from top of ship) (View from side of ship) (View from bow of ship)
1322
1
3
2
3
2
(View from top of ship) (View from side of ship) (View from bow of ship)
* Two antennas may be not be perpendicular
to one another because of vibration problems.
3
Improper arrangements
(Moved)
CHG
1m
CHG
1
3
2
Distance between
antennas changed
(View from top of ship) (View from side of ship) (View from bow of ship)
21
23
Mast bending, etc., causes the distance between antennas to change by more than 1 cm.
1
Improper arrangement
1.1.4 Mounting the antenna unit
The antenna unit may be installed three ways: screwed into a pipe (local supply),
fixed to a post with the optional mast mounting kit or screwed into an optional
mounting base. For fixing by post, it is recommended to use stays to secure the
post or pipe to prevent damage to the GPS receiver by vibration. For mounting
details, see the antenna outline drawing at the back of this manual.

1. INSTALLATION
1-11
1.2 Mounting the Processor Unit
1.2.1 Mounting considerations
The processor unit should be mounted aligned with the ship’s fore-and-aft line. It
can be mounted on the deck, bulkhead, or on the underside of a desk. When
choosing a mounting location keep the following points in mind.
• Choose a mounting location which allows you to easily view the power lamp
on the top of the unit and which is within ±2.5°of the ship’s fore-and-aft line.
• Choose a location where vibration and shock are minimal.
• Install the unit well away from locations subject to rain and water splash.
• Locate the unit away from air conditioner vents.
• Keep the unit out of direct sunlight because of heat that can build up inside its
cabinet.
• Choose a well-ventilated location.
• Leave sufficient space around the unit to permit access for maintenance. See
the outline drawing for recommended maintenance space.
1.2.2 Bulkhead mount
The processor unit is shipped from the factory ready for bulkhead mounting.
Orient the processor unit as shown below and fix it to the mounting location with
four tapping screws (M5x20). You will set the orientation later on the menu.
Name Plate (other side)
Reference Direction
Direction
A
Direction B
Direction D
Direction
C
Mounting Method: "Wall"
(Bulkhead)
Mounting Direction: A
Mounting Method: "Wall"
(Bulkhead)
Mounting Direction: B
Mounting Method: "Wall"
(Bulkhead)
Mounting Direction: D Mounting Method: "Wall"
(Bulkhead)
Mounting Direction: C
Mount processor unit so
reference direction is within
±2.5°of fore-and-aft line.
Bulkhead
Bulkhead mount

1. INSTALLATION
1-12
1.2.3 Deck mount
Orient the processor unit as shown below and fix it to the mounting location with
four tapping screws (M5x20). You will set the orientation later on the menu.
Bow
Stern Stern
Stern
Stern
Port Starboard
Mounting Method: "Floor"
(Deck)
Mounting Direction: A
Mounting Method: "Floor"
(Deck)
Mounting Direction: B
Mounting Method: "Floor"
(Deck)
Mounting Direction: C
Mounting Method: "Floor"
(Deck)
Mounting Direction: D
Bow
Port Starboard
Bow
Port Starboard
Bow
Port Starboard
Name plate
Connectors
Reference Direction
POWER switch
(power lamp)
Processor Unit, top view
Mount processor unit
so reference
direction is within
± 2.5 ° of
fore-and-aft line.
DIRECTION "A" DIRECTION "B"
DIRECTION "C" DIRECTION "D"
Processor unit orientation, deck mounting

1. INSTALLATION
1-13
1.2.4 Mounting on the underside of a desk
The processor unit may be mounted on the underside of a desk as shown in the
figure below. Do not install it on the overhead.
Name Plate
Desk
Installation of processor unit on the underside of a desk
Bow
Stern Stern
Stern
Stern
Port Starboard
Mounting Method: Invert
Mounting Direction: A Mounting Method: Invert
Mounting Direction: B
Mounting Method: Invert
Mounting Direction: C Mounting Method: Invert
Mounting Direction: D
Bow
Port Starboard
Bow
Port Starboard
Bow
Port Starboard
Name plate (other side)
Connectors
Reference Direction
POWER switch
(power lamp)
Processor Unit, rear view
Mount processor unit so
reference direction is
within ±2.5°of
fore-and-aft line.
DIRECTION "A" DIRECTION "B"
DIRECTION "C" DIRECTION "D"
Mounting on underside of desk

1. INSTALLATION
1-14
1.3 Mounting the Display Unit
1.3.1 Mounting considerations
Consider the following points when choosing a mounting location.
• Choose a location where vibration and shock are minimal.
• Install the unit well away from locations subject to rain and water splash.
• Locate the unit away from air conditioner vents.
• Keep the unit out of direct sunlight because of heat that can build up inside its
cabinet.
• Choose a well-ventilated location.
• Leave sufficient space around the unit to permit access for maintenance. See
the outline drawing for recommended maintenance space.
• Choose a location where it can be easily operated.
1.3.2 Desktop, overhead mounting
1. Fasten the hanger to the mounting location with four tapping screws
(supplied). See the outline drawing for mounting dimensions.
2. Screw the knobs into the display unit.
3. Set display unit to the hanger and tighten the knobs.
4. Run the ground wire between the ground terminal on the display unit and the
ship’s superstructure.
Desktop Overhead
Desktop and overhead mounting