PAM - TRH Wiring Diagram for KVH Compass

 

 

 

signal

Compass (color)

9 pin AMP

TRH

RXD (RS232)

Red/Black Tracer

2

To KVH (reverse of field console)

TXD (RS232)

Blue/Black Tracer

1

 

Signal Gnd

Black/White Tracer

4

 

Analog Output

White/Black Tracer

6

TRH Analog input 2

+12 Vdc

White

8

+12 Vdc

Gnd

Black

7

Gnd

 

     The 9 pin AMP bulkhead connector to the TRH has pins 6, 7, 8 hooked up. There are internal wires going from these pins to connector points on the TRH board.

 

 

 

 

 

 

 

 

 

 

 


  

Comms:            RS232 = 9600, N-8-1. The standard serial sensor test cable can be used with 9 pin barrel adaptor.

 

Coefficients:  Nominal value used   .1-1.9V = 0-360,  ie 5mV/deg

                                                            Bad Connection, 0V = -20 deg

 

Options:           Variation mode off,       =v,m

                        Undamped                   =dt0,0

                        Analog Out Mode        =at,0    (linear)

                        9600 bps                      =b,96

                        NMEA                         =t,0

 

 

Cal. Notes:       1) Set Procomm on PC            CR/LF in terminal setup (to see cal. Report.)

                        2) Install on TRH, connect cable

                        3) Place on steady surface away from steel, watch,..

                        4) Commands:  ‘h’                    halt output

                        5) =ce1                                    8 point cal.  Ea. Point 45-deg and type =ce1

5a) =ce3                                  slowly rotate KVH cal., seems OK also and don’t need to type in between

6) Report ‘noise magnetic’        Redo if noise < 7 (ie worse than 2-deg accuracy), or if magnetic<5 (bad location).

 

 

Selected Command Summary: 

?w        Report s/n, version, type, cal-date

s                       Start, continuous output

h                      Halt output

=r,X                 Message Rate (x=messages/minute)

=b,X                Baud (48=4800, 96=max)

=v,X                Variation: t=on, m=off

=vd,X              Set variation degrees (0 to +/- 359.9)

=dt0,X             Set damping type (0=undamped, 1=single IIR, 2=sum&dump

=d0,X              Set damping rate (0=3s, 1=4.5s, 2=6s, 3=7.5s, 4=9s, 5=12s…)

=ce1                8-Point Calibration

=ce3                Circular Calibration

=cez                 Abort Calibration Procedure

            ?cs1     See Calibration Score and count

            ?cs2     See Calibration Score, hard iron influence, and count

 

Factory Defaults:         

Variation                   Off                                  =v,m

Variation                   0.0                                  =vd,0

“A” Offset                 0.0                                  =vi,0

Power up                  sending                            s

Baud                         4800                               =b,48

Msg Rate                  1hz                                  =r,60

Msg Type                  NMEA                            =t,0

Msg Units                  degrees                           =I,d

Digital Out                 continuous                       =z,0

Digital fmt                  4 Digit BCD                    =zt,1

Analog Out                Linear                              =at,0

Damping Type           Double Infinite Impulse Response Filter (double IIR)        =dt0,3(?)

Damping Rate            3 seconds                        =d0,0

 

 

 


File Reference: $PAM/doc/maker/Sensors/KVH Compass Wiring.doc