Simrad IS20 Analog Manual
Simrad
Skibsradar
IS20 Analog
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20222584 / A Sw.1.1
English
IS20 Analog
Instrument series
MANUAL
Copyright
All rights reserved. No part of this document may be
reproduced or otherwise copied without prior written
permission of Navico Holding AS.
© 2007 by Navico Egersund AS
About this manual
This manual is a reference guide for installing and
operating the Simrad IS20 Graphic instrument.
The manual does not include operator or installation
procedures for sensors that can be connected to the
system.
In this manual, names of menu commands, dialog box
text and keys are written in boldface (e.g. Main menu,
Setup command, Left key).
Important text that requires special attention from the
reader is emphasized as follows:
Used to draw the reader’s attention to a comment or
some important information.
Used when it is necessary to warn personnel that a
risk of damage to the equipment or hazard exists if
care is not exercised.
2 | IS20 Analog instruments
Content
1 Introduction ............................................... 5
1.1 General information..................................5
1.2 Instrument layout .................................... 5
1.3 IS20 system examples.............................. 6
2 Operation.................................................... 9
2.1 Turning the IS20 on ................................. 9
2.2 Backlighting .......................................... 10
2.3 Scrolling through function displays ........... 11
2.4 Using the heading lock function................ 13
2.5 Operating the menu system..................... 14
2.6 Changing the display settings .................. 16
2.7 SimNet backlight group........................... 18
2.8 Setting the damping factor ...................... 19
2.9 Power save function ............................... 19
2.10 Demo mode......................................... 20
3 IS20 Alarm system ................................... 21
3.1 Alarm indication..................................... 21
3.2 Acknowledging an alarm ......................... 22
3.3 Alarm codes .......................................... 23
4 Installation ............................................... 25
4.1 Location of the unit ................................ 25
4.2 Mechanical installation ............................ 25
4.3 Cable connection.................................... 27
IS20 Analog instruments | 3
5 Configuration............................................ 35
5.1 General ................................................ 35
5.2 No calibration function available ............... 35
5.3 IS20 Rudder.......................................... 36
5.4 IS20 Compass ....................................... 40
5.5 IS20 Wind and IS20 Tack........................ 45
6 Maintenance ............................................. 49
6.1 General maintenance.............................. 49
6.2 Resetting the instrument system .............. 49
7 Spare parts ............................................... 51
7.1 Spares and auxiliaries............................. 51
7.2 SimNet cables and accessories ................. 52
8 Specifications ........................................... 53
8.1 Technical specifications ........................... 53
8.2 Dimensional drawing .............................. 54
8.3 Menu options......................................... 55
4 | IS20 Analog instruments
1 Introduction
1.1 General information
The IS20 analog instruments are a range of four
instruments that provide useful information for the boater
in a classical fashion. They are individually designed to a
particular main function such as rudder angle, compass
heading, wind angle and speed and close hauled sailing.
They are all compatible with the unique SimNet network
and can easily be mounted adjacent to each other and
interconnected in a daisy chain.
A separate NMEA0183 input port allows input from other
non-SimNet devices.
1.2 Instrument layout
Introduction | 5
The instruments are provided with a back lighted scale
and the pointer is driven by a microstep motor that gives
excellent precision and no overshoot. The LCD display
offers information complementary to the scale as well as
set-up support when installing and calibrating the
instrument.
The display may be set to red or white illumination color,
and the contrast and light level are adjustable.
The instrument is equipped
with 2 SimNet connectors
and one NMEA0183 input
(listener) connector.
Keys
The instrument is operated by 4 keys. These are used to
scroll between function displays, to adjust the light, to
operate the menu and to set parameter values.
1.3 IS20 system examples
The IS20 may be installed as a stand-alone instrument
system, or as part of an advanced instrument or steering
system on the boat.
The figures below show simplified illustrations for basic
and an expanded IS20 system.
6 | Introduction
IS20 Rudder, Basic system
IS20 Compass, Basic system
IS20 Wind or Tack, Basic system
Introduction | 7
Wind
transducer
T-joiner
Active depth
transducer
Analog
speed/temp
sensor
12V SimNet supply
Red disk
IS20 Expanded system
8 | Introduction
2 Operation
It is required to read and understand the content in this
chapter. The remaining descriptions and illustrations in
this manual assumes that the user is familiar with how to
operate keys and how to navigate in the menus!
2.1 Turning the IS20 on
IS20 has no power key, and will be running as long as
power is connected.
The IS20 includes a power save function. Refer page 19.
When power is applied the LCD will
show the product name (IS20)
followed by software version.
After approximately 5 seconds the instrument is
operative.
First time start up
Before the IS20 is ready to operate, it should be
configured as described in Configuration, page 35
onwards.
Restarting the IS20 instrument
When IS20 is re-powered the display will go directly to
the last active function after the start up sequence is
finished.
Operation | 9
2.2 Backlighting
The display backlight may be adjusted at any time.
1 Press the light key
− The light level will be indicated with
flashing number on the LCD
2 Press one of the keys as described below to
change the display backlight:
a The Light key to increase the light level by one
step
b The Up/Down keys to increase/decrease the
light level by one step
3 Press the Enter key to confirm the selection
and return to last active display
If no adjustment is performed within 3 seconds, the LCD
will return to last active view.
For red/white backlight color, refer to Display color,
page 17.
10 | Operation
2.3 Scrolling through function displays
The IS20 Analog instruments may show several
functions, displayed by using the Up and Down keys.
3 arrows at the top of the LCD indicate which function
that is displayed. The arrow symbols are identified by
legends printed on the scale.
IS20 Rudder / IS20 Compass
The illustration shows legends used on the
IS20 Rudder/Compass instruments to indicate
active function as listed below:
LCD Scale/pointer
Symbol Function Compass Rudder
Heading
Magnetic heading
True heading
Heading Rudder
angle
Heading lock
On course
Off course, steer port
Off course, steer
starboard
Heading
Cross track error in 1/1000 NM
Cross track error, steer
to starboard
Cross track error, steer
to starboard
Heading
Operation | 11
IS20 Wind / IS20 Tack
The Wind/Tack instruments can display 5
different functions.
The legends are used to indicate an active
function as shown in the table below.
LCD
Symbol Function
Scale/pointer
Apparent wind speed Apparent wind angle
True wind speed True wind angle
VMG to wind Apparent wind angle
VMG to wind True wind angle
Wind direction
Magnetic reference
True reference
True wind angle
Wind direction can only be displayed when heading or
course over ground is available as input!
Speed and velocity may be displayed in knots, miles per
hour or meter per second. Refer Setting the units of
measure, page 47.
12 | Operation
2.5 Operating the menu system
All functions and settings in the IS20 analog instruments
are available from the menu system, activated by
pressing the Enter key.
The keys are used as shown below to navigate in the
menu system:
KEY SINGLE PRESS PRESS AND HOLD
Confirm a selection/parameter
setting
Go to previous/next menu item,
increase/decrease parameter
value
The illustration on next page shows menu navigation and
required key presses when changing the damping factor
from “3” to “4”.
14 | Operation
Operation | 15
Menu illustrations
In this manual, the first steps in a menu operation are
illustrated by overlapping menu windows.
Number of underlying menu windows are
indications only and do not correspond to
actual key presses.
When more detailed illustrations are required to show key
presses and screens, this is shown as below:
2.6 Changing the display settings
To optimize the readability under different light
conditions, the instrument backlighting is controlled by 2
settings:
− Light level
− Light color
The light level is controlled by the light key. Refer
Backlighting, page 10.
Color and level also applies for key backlighting!
16 | Operation
Display profile
The day and night display profiles controls the light color
for the display and the keys.
The profiles are utilized in installations where several
instruments are configured as part of a SimNet backlight
group as described on page 18.
LCD Parameter Default
Day profile
Night profile
Day
Display color
The light color is defined for the selected display profile.
LCD Parameter Default
White
Red
Day profile:
White
Night profile:
Red
Operation | 17
2.7 SimNet backlight group
The SimNet backlight group function is used to globally
control the light setting for groups of units. This option is
used on larger vessels where many units are connected
via the SimNet network.
By assigning several units to the same group, a backlight
change on one unit will have the same effect on the rest
of the group members.
The SimNet backlight groups are normally configured
during installation, but may be changed at any time.
The following group settings are available:
Parameter Options Default
− Simrad
− None
− 1 - 6 -
Simrad
− Simrad: Default group for IS20
− None: Not assigned to a group
− 1 – 6: Group numbers
18 | Operation
2.8 Setting the damping factor
The damping factors indicate how fast the display will
respond to changes.
The higher damping factor the more stable display
reading on the instrument.
Range Change per step Default value
0 - 9 1 4
2.9 Power save function
When power save is activated, the display
will be turned off.
Any key press or activated alarm will disable the power
save function.
Operation | 19
2.10 Demo mode
The IS20 includes a demo mode useful for
demonstrations and on show.
Once selected the demo mode will be active even if the
instrument is turned off.
Demo mode is turned OFF with the same procedure as
used when it was turned ON.
When demo mode is selected on a unit in a system of
interconnected SimNet products, they will all go to Demo
mode. Demo mode must however be turned OFF on the
same unit where Demo mode was turned ON!
20 | Operation
3 IS20 Alarm system
3.1 Alarm indication
The alarm system in the IS20 analog instruments is
activated if any alarm settings are exceeded. Refer to
Alarm setup, page 45.
When an alarm is activated, the alarm will be indicated
with an alarm ID and with an audible alarm.
The different alarm indications are shown in the table
below.
Alarm type Sound Light
Vital alarm Constant
Important alarm
Switching
on/off
Standard alarm
Alternating between 2 tones
Warning Single beep
Light warning Single beep
Alarm system | 21
The following alarms are available on the IS20 Analog
instruments:
Alarm ID Alarm Source
ShAL Shallow water alarm
dEEP Deep water alarm
AnCh Anchor watch / change in depth
chnG True wind shift alarm Wind/Tack
High True wind speed too high Wind/Tack
Lo True wind speed too low Wind/Tack
oFF.C Off course alarm
Er.xx Local unit failure Internal *
AL.xx Any other alarm Any *
* The xx will be replaced by the global alarm id.
Refer Alarm codes, page 23.
If IS20 Graphic is connected to other SimNet units, any
alarm in the system will be displayed on the instrument.
The alarm text is received from the alarm source or from
SimNet.
3.2 Acknowledging an alarm
An alarm is acknowledged by pressing any key. This will
remove the alarm notification (text, light and sound)
from the instrument.
The IS20 Analog instruments do not display any alarm
reminders!
An alarm received from other SimNet units must be
rectified on the unit generating the alarm!
22 | Alarm system
3.3 Alarm codes
If the text is received from other units
connected to SimNet, the alarm text
may not be displayed. The alarm
condition will then be indicated with a
code as listed in the table below.
Alarm ID Alarm
10 Shallow water
11 Deep water
12 Anchor alarm
13 Wind shift alarm
14 True wind speed too high
15 True wind speed too low
16 Boat speed too low
17 Voltage too high
18 Voltage too low
19 Depth data missing
20 Wind data missing
21 Navigation data missing
22 Compass data missing
23 Off course
24 Rudder feedback data missing
25 Rudder feedback failure
26 Rudder response failure
27 Rudder drive overload
28 High temperature
29 Bypass/clutch overload
30 Bypass/clutch disengaged
31 High drive supply
32 Low drive supply
Alarm system | 23
Alarm ID Alarm
33 Autopilot control communication failure
34 Autopilot function communication failure
35 Non volatile memory failure
24 | Alarm system
4 Installation
4.1 Location of the unit
The IS20 should be mounted with special regard to the
unit’s environmental protection, temperature range and
cable length. Refer to page 53.
Avoid mounting the unit where it is easily exposed to
sunlight, as this may shorten the lifetime of the display.
4.2 Mechanical installation
Panel mounting
The mounting surface must be flat and even to within 0.5
mm.
1. Drill the 4 mounting holes and make a panel cut-out
according to the drilling template included in the
package
2. Use the supplied 19 mm self tapping screws to secure
the control unit to the panel
3. Apply the front panel corners
Do not over-tighten the screws!
Installation | 25
Bracket mounting
An optional bracket is available for the IS20.
The illustration below shows the mounting details for the
bracket.
26 | Installation
4.3 Cable connection
The IS20 may be connected to:
− a SimNet network using SimNet cables
− an NMEA2000 system
− an NMEA0183 output port
SimNet/
NMEA2000
NMEA0183 In
SimNet/
NMEA2000
SimNet
The SimNet cable system with very small plugs in both
ends makes it easy to run the cables. Only 10 mm (3/8”)
holes are required through panels and bulkheads.
The SimNet accessory program contains the necessary
items to make a successful installation. Refer SimNet
cables and accessories, page 51.
SimNet cables
A SimNet unit has one or two yellow SimNet connectors.
There are no dedicated “in” or “out” connectors.
Route the SimNet cables with the figures on page 29, 30
and 31 as a guideline. Select cables and accessories from
the SimNet accessory program.
Connect products with two SimNet connectors in a daisy
chain and use drop cables and T-joiners when required.
For cable extension in-line cable joiners are available.
Total length of SimNet cable installed in a system should
not exceed 150 meter (500’)!
Installation | 27
If you plan to extend your SimNet system in the future it
may be advantageous to prepare for it by adding a few T-
joiners in central locations. The T-joiners provide easy
access to the network and can be replaced with a new
product, or the new product can be connected via a drop
cable.
The connectors are weather proof according to IP66,
when properly installed. All unused SimNet connectors
must be fitted with the plastic cap to protect them against
dirt and moisture.
SimNet power and termination
The following rules should be observed when installing
SimNet.
1 It must have a separate 12VDC power from the
battery bus or the circuit breaker board to reduce
interference
2 It must not be connected to the supply voltage
terminals of the Autopilot Computer
3 It will power a SimNet compatible instrument
system. Hence SimNet to other equipment can be
supplied via the autopilot, see the figures on page
29, 30 and 31
4 SimNet must be properly terminated, i.e. unless it
is a small system (see the figure on page 29) there
must be terminations at each end of the Simrad
backbone
The SimNet network has to be terminated according to
the number and type of products connected.
In a small system consisting of maximum 5 SimNet
products and a total length of 5 m SimNet backbone
cable you only need the SimNet power cable with built in
termination (red disc on cable plug).
For additional information about SimNet ask for the
separate SimNet Manual.
28 | Installation
SimNet network, small system
Installation | 29
r
Autopilot
Chart Plotter InstrumentInstrument
Termina tion
plug
Wind
transducer *
T-joine
SimNet network, medium system
T-joiner
Multijoiner
Compass
5,5 m
5,5 m
5,5 m
20 m/30 m/40 m
5,5 m
5 m
Active
depth
transducer
Analog
Speed/Temp
sensor
24AP
MODE
MENU
AUTO STBY
TURN
1010
PWR
11
RF25 Rudder Feedback
12V SimNet supply
(SimNet cable without terminator)
Autopilot Computer
Non SimNet
SimNet backbone
SimNet drop cable
30 | Installation
SimNet network, expanded system
Installation | 31
Connecting IS20 to an NMEA0183 output unit
The IS20 instrument may be used as repeater for data
from a device with an NMEA0183 output port (NMEA
“talker”).
Use a repeater that is suitable for the type of data you
want to present and the way you want it presented, i.e.
digital or analog, multiple data from a GPS/Chart plotter
or heading from a compass.
Use the NMEA0183 Interface cable (part no 22098495) to
connect an NMEA0183 output device to IS20.
Installation | 33
Blank page
34 | Installation
5 Configuration
5.1 General
In this section the configuration procedure is described
completely for each instrument type.
IS20 Rudder: page 36 - 39
IS20 Compass: page 40 - 44
IS20 Wind/Tack: page 45 - 48
5.2 No calibration function available
Some sensors that supply data on SimNet may not have
or offer access to a calibration function.
Missing calibration function is indicated as shown in the
illustration.
Configuration |35
5.3 IS20 Rudder
Setting the heading reference
The IS20 Analog instruments may be set to reference
either Magnetic or True heading.
If True heading is selected, the magnetic variation must
be available from a GPS receiver!
LCD Parameter value Default
Magnetic
True
Magnetic
36 | Configuration
Produkt Specifikationer
| Mærke: | Simrad |
| Kategori: | Skibsradar |
| Model: | IS20 Analog |
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