SYNCHRO INTERFACE model KW910 M
| IN, SYNCHRO |
| OUT, NMEA 0183 |
The interface converts synchro transmission to NMEA 0183
or IEC 61162 data. Applications include VDR and
simplified voyage data recorder s-VDR, SVDR.
|
Gyro compass . |
|
Rudder Sensor Angle |
|
Telegraph, pitch |
|
The "XDR" sentence |
|
Wind speed and direction |
|
Log speed |
SPECIFICATION
INPUT 1: Synchro 40 to 550 Hz. Reference
40 to 220v. Phases 40 to 90 volts. (For DC synchro see model SDC910)
Loading resistors 91K to 270K ohm per phase. 22K reference.
Conversion 12 bits, 0.1 degrees.+/- 0.5 degrees. Conversion rate 40 per
second.
INPUT 2:NMEA 0183 port. 4800 baud.
Gyro option:
Programmed for all NMEA heading sentences input.
Rudder Sensor Angle option: Input a 2nd rudder angle (or rudder
demand)
Wind option: Use a 2nd interface to input speed or direction.
XDR option: A second transducer value can be input.
OUTPUT: 5v CMOS 5 mA via 47 ohms. NMEA
0183, RS422, RS232 compatible.
Data is 4800 baud NMEA 0183 format, plus an Anschutz Coursebus option.
Generally 1 per second. Refer to option list.
Gyro options: $HEHDT, $HEROT, $HCHCC, $HCHDM.
Rudder sensor angle: RSA does not necessarily = actual rudder angle. Output a $ERRSA synchro transducer angle sentence with two values, first the interface's own angle, the second field via the NMEA input port
Wind option: $WIMWV. The interface outputs wind speed OR direction. The other field can be filled by input from the NMEA input port.
XDR option: More than 8 XDR identities, switch selectable. Outputs a $ERXDR synchro transducer angle sentence with two values, first the interface's own angle, the second field taken from the first field entered via the NMEA input port
POWER: 9 to 32 v DC at 0.2 amps.
ENCLOSURE: Duck Egg blue diecast box 222 x 155 x 55 mm for indoor bulkhead mounting.
CABLE ENTRY: Glands for 7 mm diameter cables.
FEATURES: LEDs on data in and out plus bicolour status led. Connections are lift-off terminal blocks.
RATIOS, SCALE OFFSET AND ALIGNMENT:
Synchro is generally assumed 1:1 with a synchro natural zero = 0 degrees,
midships etc. The KW910 may be adjusted for an offset angle by
inserting a correction in the EPROM. The ratio, or calibration scale, can be changed by various
means such as keying a table of 360 values into the EPROM by changing the mathematics of a multiplication.
This allows angle to be translated into rudder angle, for instance.
More precise details are
given in the option table, and an application note is available for engineers familiar with binary and
hexadecimal
programming. ALIGNMENT: For ratios other than 1:1 an optional
extra 4 button keypad is required and may be fitted in the factory at the time of order for a small extra
charge.
KW910 -M OPTION TABLE for program 910MP3 and later. 18/10/2003
Option Ratio Data out Data 00 1:1 HEHDT + HEROT Head & ROT 1 per second 01 1:1 HEHDT + HEROT Head & ROT 1 per sec + when heading changes 02 36:1 HEHDT + HEROT Head & ROT 1 per sec + when heading changes 03 90:1 HEHDT + HEROT Head & ROT 1 per sec + when heading changes 04 360:1 HEHDT + HEROT Head & ROT 1 per sec + when heading changes 05 1:1 HEHDT Heading 10 per second 06 1:1 HCHDM Heading 10 per second 07 1:1 HCHCC Heading 10 per second 08 1:1 Anschutz Coursebus Heading 10 per second 09 90:1 Anschutz Coursebus Heading 10 per second 0A 1:1 0B 1:1 ERRSA Rudder sensor angle Insert offset angle 0C 1:1 ERRSA Rudder angle Translate table 0For 4:1 rudder sensor 0D 1:1 ERRSA Rudder angle Translate table 1As yet unused 1:1 ERRSA Rudder angle Translate table 2As yet unused 0F 1:1 ERRSA Rudder angle Translate table 3As yet unused 10 1:1 ERXDR Transducer angle Identity = 10 as set on the switch
11 1:1 ERXDR Transducer angle " 12 1:1 ERXDR Transducer angle " 13 1:1 ERXDR Transducer angle " 14 1:1 ERXDR Transducer angle " 15 1:1 ERXDR Transducer angle " 16 1:1 ERXDR Transducer angle " 17 1:1 ERXDR Transducer angle " 18 1:1 ERXDR Transducer angle " 19 1:1 ERXDR Transducer angle " 1A 1:1 ERXDR Transducer angle " 1B 1:1 WIMWV Wind speed 200 knots 1C 1:1 WIMWV Wind speed 100 knots table. 1D 1:1 WIMWV Wind direction Wind Direction. offset 1E 1:1 VMVBW Longitudinal Water speed 100 knots 1F 1:1 VMVBW Longitudinal Water speed 48 knots
NOTES
#01. The fastest update is whenever heading changes. #0B. Rudder sensor angle does not always equal actual rudder angle. #0C. You can use an offset angle then use the translate table.
ranslate table is 360 values described in detail in the handbook. #0B - 0F RSA is dual. Input the second angle via NMEA input port. #1E, 1F. Unused fields are sent as null fields.
PDF DATA SHEET
REVISED: 18/10/2003 by Andrew Fairgrieve.
| ADITEL MARINE ELECTRONICS | |
| Tel / fax | 44 (0) 1873 840405 |
| Fax: | 44 (0) 1873 840106 |
| AMI | 44 (0) 2380 480450 |
| E-mail: |
|