Raymarine ST60 wind-problem with windspeed reading

Even Chance

Even Chance

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Hi all,
My ST60 works fine, and then the windspeed reading drops, and drops, and eventually reads zero, whilst the masthead transducer still spins away nicely.
I forget about it, and it appears working perfectly again a wee while later.
Anybody had this fault, or know what it might be?
 
Had very similar problem. Sometimes dropping and sometimes reading gale readings!! Turn out to be a corroded wire near the mast base (I have a connection there). Luckily was an easy fix.
 
I have a plug/socket at the mast base, but its a gold plated MOD spec Amphenol connector. I will check it and see. I did give it a wee wiggle the other day "just in case!" lol
 
Someone else reported a similar problem on the forums recently, perhaps on another model (ST50 or ST70) though. Might be worth a search.

If the wind speed drops to zero when sailing downwind, the unit may be reading a little low, or the anemometer may be sticking. We had the latter, spray lubrication fixed it.
 
Last edited:
nigelmercier said:
Someone else reported a similar problem on the forums recently, perhaps on another model (ST50 or ST70) though. Might be worth a search.

If the wind speed drops to zero when sailing downwind, the unit may be reading a little low, or the anemometer may be sticking. We had the latter, spray lubrication fixed it.
Click to expand...

The wind direction needle points up and the digital read out reads '- - -' until we turn it off and then on again. We've got used to ignoring it and doing without.
 
My mate has the same problem - he borrowed another mast head unit and it works no problem although the faulty one still gave the same voltage readouts a bottom of mast.
Still a mystery but may eventually solve over time as a season has lapsed since.
 
Got a similar problem with the instrument sometimes not reading speed and other times doing so.Meantime the direction bit works OK.

I need to check the wiring. Does anyone know which wires give the speed signal and what for the signalis in ie is it a rising voltage or an interupted contant voltage whete the display head counts pulses? Or what?
 
YES i had this exact problem last year.
someone on here posted the pin outs and the various voltages i should see.
I checked these and they were fine.
It turned out to be the conection at the top of the mast, i cleaned the "green" terminals and all has been good for a yearI
 
NornaBiron said:
The wind direction needle points up and the digital read out reads '- - -' until we turn it off and then on again. We've got used to ignoring it and doing without.
Click to expand...

Also got exactly the same problem which is intermittent.. turning it on and off sometimes works, sometimes it does not.
 
No, I have the same problem. Voltages at bottom of mast and at instrument look fine. Connection at top looked clean. Connecting directly to slave didn't help. Master & slave both show slave in setup & I can't change this. I think that the master unit might show setup as master when getting a correct signal.

I decided that problem was either:
a) Weak signal from sender (earlier post seemed to confirm as one sender worked and other didn't but both gave correct signal output)
b) Problem inside the master unit (also mentioned above).

It sounds as if these aren't the most reliable units. Mine was new in 2009.

------------- I can't find the link but had copied the details below -----------
--------- I also have a 90kb Test Procedure PDF and can PM if needed ------
To perform the check, you will need a multimeter, and a DC power supply. You will need to supply 8v to the masthead across the red and shield connections. Normally the ST50/ST60 display head would be energized and provide this 8V, however in your case, you may need to power the mashead transducer seperately.

With the multimeter, check the following:

Set the multimeter to the 20V DC scale.

Test at the connections on the rear of the display head, or at the base of the mast (if you have a junction box installed.)

Red to shield should read 8 volts DC steady. This is the masthead power supply, coming from the ST50/ST60 display head. If the head is damaged, you may need to provide this power from another source to test the masthead.

Blue to Shield should read anywhere between 2 and 6 volts DC. This is the port side directional element. The voltage changes as the vane turns.

Green to Shield should read anywhere between 2 and 6 volts DC. This is the starboard side directional element.

Yellow to shield should read between 0 and 5 volts DC. This is the wind speed circuit. The faster the wind is blowing, the higher the voltage will read.

If any of these readings are out of spec, you should assume the masthead is damaged, and it should be repaired or replaced.
 
Mistroma,
Thank you for that.
The problem I have is that it works perfectly correctly for a few weeks and then for no apparent reason I get the dashes in the digital wind out put. Turning it on and off again may re start it but often it does not.
Then sometimes I go out and everything is dandy again.

I also have a problem with my Raymarine 55E which for some reason will transmit but not receive. Both bought in 2009. Other people have also had this problem. Raymarine have not exactly been helpful. I still am awaiting a reply after three days.
 
Ditto with my ST60, sometimes it works and then it stops for no reason with dashes on display.

Ditto my 55E as well, also having problems with that.

Sounds as if Raymarine quality control is a bit off as it sounds as if these problems are relatively common (judging by other posts and comments on Internet).
 
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