TM-42 Manual (ENG) 20050707-97 [PDF]

Zitiervorschau

---

Transmitting for Magnetic Compass TM-42 User's Manual

BUSAN KOREA

Content Page 1. General Information ...........................................................................................

3

2. Operation ........................................................................................................

3

3. Technical Specification .......................................................................................

5

4. Installation........................................................................................................

7

5. Power on & Functional Tests ...............................................................................

7

6. Troubleshooting .................................................................................................

8

- 2 -

Variation Calibration

1. General Information The TM-42 is a transmitting magnetic compass system that displays

the

heading

of

the

ship

and

sends

NMEA-0183

sentences, using the FLUXGATE(SF-30) to sense the magnetic field of a magnetic compass. The primary functions of the TM-42 are

to

provide

backup

heading

and

to

sends

NMEA-0183

sentences. The TM-42 also has several functions, such as a

Step 1 : Display the start of the variation calibration Step 2 : Display and adjust the variation calibration value

deviation calibration ,a variation calibration and dimmer function. ① Press the DEV/CAL button and hold for 2 seconds to enter the variation calibration mode when the TM-42 display the heading. The initial screen of the variation calibration mode will be

2. Operation

displayed on the 7-segment.

POWER

② Press the DEV/CAL button to jump to the . In the

Press the ON/OFF button once on the front pannel to turn on the

, you could adjust and set the variation calibration

TM-42. The green power LED will be turn it on. Press the ON/OFF button and hold for 2 seconds to turn it off. All LEDs and

value. If the calibration is done, press the DEV/CAL button to escape the calibration mode.

7-segment display will be turned off. For example, if the difference between the magnetic compass Illumination

and the TM-42 is -2.5° at the entire range, set the variation

When the calibration mode is off, the level of illumination could

calibration value to -2.5 using the DIM+ or DIM- button.

be adjustable by pressing the DIM+ button or the DIM- button. This setting will be stored and maintained when the TM-42 is switched on and off.

Deviation Calibration

- 3 -

Step 1 : Display the start of the deviation calibration

110 in the . And if the difference is -0.5°, set the

Step 2 : Display and adjust the address of the deviation

calibration value to -0.5 using the DIM+ or DIM- button.

calibration Step 3 : Display and adjust the deviation calibration value

Table 1. The deviation calibration value table ( 0° ~ 170° )

① Press the DEV/CAL button and hold for 2 seconds to enter the deviation

calibration

mode

when

the

TM-42

display

the

heading. The initial screen of the variation calibration mode will be displayed on the 7-segment. Press the DIM+ or DIM- button once to switch to the deviation calibration mode. Then the initial screen of the variation calibration mode will be displayed on the 7-segment. ② Press the DEV/CAL button once to jump to the . In the

,

you

could

adjust

and

set

the

deviation

calibration address. This address represent the angle for the deviation calibration, which is 36 from 0 to 350 by steps of 10. Select the address for calibration and press the DEV/CAL button once to jump to the . ③ In the , you could adjust and set the deviation calibration value. This value is set from -9.9 to 9.9 using the DIM+ or DIM- button by steps of 0.1. And press the DEV/CAL button once to adjust the calibration value in the other address. If the calibration is all done, press the DEV/CAL button and hold for 2 seconds to escape the calibration mode. For example, if you want to correct the difference between the magnetic compass and the TM-42 at 110°, set the address to

- 4 -

3. Technical Specification Table 2. The deviation calibration value table ( 180° ~ 350° )

1. The TM-42 terminal block is arranged as shown. V

. Table 3. The terminal block arrangement Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Function DN1(NMEA-) DP1(NMEA+) DCOM DN2(NMEA-) DP2(NMEA+) FLUXGATE +VE(5VDC) (YELLOW) SCL (GREEN) SDA (GRAY) FLUXGATE -VE(0VDC) (BROWN) SPARE (WHITE) +VE(24VDC) -VE(0VDC) +BATT'(24VDC) -BATT(0VDC)

15

SPARE

16

SPARE

2. The TM-42 has two channel asynchronous serial interface for transmitting

for

NMEA-0183

sentences.

The

NMEA-0183

sentence is selectable by setting the DIP S/W as the . ※CAUTION : Please unplug the power cable before changing the DIP S/W setting value.

- 5 -

Table 4. The DIP switch setting for the NMEA-0183 Output DIP

Table 5. The example sentence of NMEA-0183 (16.5°, 4800bps)

Description

Switch

DIP

Digit

Switch

Format

4,800bps

NMEA Output Sentence $HCHDM,16.5,M*1B

BaudRate 9,600bps

Digit Format

Sentence Format

Variable Digit

Variable Digit

$HCHDG,16.5,0.0,E,0.0,E*70 $HCHDM,16.5,M*1B $HCHRC01650, 000*5C

Fixed Digit

$HCHRC01650, 000*5C

HDM

$HCHDM,016.5,M*2B

HDG

Fixed Digit

HDM,HRC

$HCHDG,016.5,0.0,E,0.0,E*40 $HCHDM,016.5,M*1B $HCHRC01650, 000*6C

HRC

$HCHRC01650, 000*6C

- 6 -

4. Installation

Figure 2. The installation of the Fluxgate(SF-30)

1. Insert and fix the TM-42 in the console or the place for install. 2. Connecting cables to the TM-42. Information on the TM-42 connections and interfaces is shown in the . Figure 1. SYSTEM DIAGRAM

5. Power On & Functional Tests If the cable connection of the TM-42 is all done, the final test is required as shown. 1. Verify the cable connection again.

※ The DCOM Pin is not ground in the Figure 1. Don't connect to

2. Input the power to the TM-42 and check the display heading is

ground.

accord with the magnetic compass. 3. Install the Fluxgate(SF-30) beneath the Magnetic Compass like

3. Check the NMEA-0183 serial port is working properly.

the Figure 2. The direction of the installation of the Fluxgate is very important. Please install the Fluxgate with caution.

6. Troubleshooting - 7 -

1. The "ErrF" error message is displayed on the 7-segment. : This message caused when the cable connection between the TM-42 and the FLUXGATE(SF-30) is not correct. ☞ Recheck the cable connection between the TM-42 and the FLUXGATE(SF-30). 2. All LEDs and 7-segment display is off. ☞ Check the fuse or the cable connection. 3. The difference between the magnetic compass and the TM-42 is so large. ☞ Check the installation of the FLUXGATE(SF-30). Or replace the FLUXGATE. 4. There's no NMEA output from the TM-42. ☞ Change the wiring between the DNx pin and the DPx pin. (where x means the NMEA output channel number)

- 8 -