SG2100- Looses position 0

[onoves]

I have a Motor SG2100 + diseq 3x1 with one exit (3 sat and 1 terrestial).

If I do a motor reset, the motor runs properly until
I switch off the receiver, the motor looses again the 0 position, and it doesn't
run automatically when I change the satellite in the receiver.

If anyone have an idea about what I can check ...

Thanks in advance !!

[elgemcdlf]

Receiver type? Where in the circuit is the diseqc?

[rainman]

I would start by checking the coax and connectors.then make sure you got your receiver setup properly lat and longitude for your area.

[wejones]

Originally Posted by onoves

I have a Motor SG2100 + diseq 3x1 with one exit (3 sat and 1 terrestial).

If I do a motor reset, the motor runs properly until
I switch off the receiver, the motor looses again the 0 position, and it doesn't
run automatically when I change the satellite in the receiver.

If anyone have an idea about what I can check ...

Thanks in advance !!

I have a question about the question...... I was curious about just what a "motor reset" actually does. I was reading the little sheet that passes for a manual for this motor, and a couple things caught my attention.

In the manual, it says that to do a reset, that you first have to drive the motor manually to it's zero position, and then do the reset, and it suggests that after the reset, that it's "current position" will then become the zero position. Ie if I read this right, a goto-zero command will go to a different position after a reset, because going manually to the zero position isn't a very accurate thing, seeing as you'd probably be lucky to be within a couple degrees when using the scale on the motor. Mine didn't even point to zero out of the box.

Anyway, I'm starting to think that the use of this reset thing could get you significantly out of "sync" if you are using USALS, but that fact could end up being an advantage, because my main complaint about the USALS thing is that it didn't seem to have a "resync" command, while the DiseqC 1.2 format DOES have a resync command. Ie there may be a good procedure for driving your dish to the proper zero position based on peaking your satellites, then use this position to reset your motor and resync the system. I'm going to have to experiment with this, as I still don't understand the workings of these motors enough to be sure I understand what they are doing all the time.

However I then became confused about just what is the difference between doing a motor reset, and doing a DiseqC 1.2 resync? Is this basically the same, except that the 1.2 resync doesn't erase the sat positions stored on the motor and replace them with the factory settings?

Also, does doing a DiseqC 1.2 "resync" affect the goto-zero position when using USALS?

ALSO, I'm curious about what happens if you give the motor a GOTO-zero command, and something interrupts the action, like a power failure? Ie does the place the motor stops at the power failure now become the new zero position?

Basically, I was previously under the impression, that the goto-zero command was an ABSOLUTE command, that was always the same in USALS, and that could be altered via DiseqC 1.2, but could be brought back to factory conditions with a reset. But on reading the manual, it looks like you cannot come back to factory conditions with a reset, and that a reset must be done very carefully, and may involve some undocumented procedures to do right.

Since the poster above seems to have done several resets, I'm curious what procedure was used, and what results were observed? And/or any of the more experienced users of these motors might provide their observations. This may all be an issue of the English translation of this manual may be confusing me, but it sure seems like this motor reset is NOT a reset to factory conditions, but a user calibration, which should be done with care.

Any comments?

[onoves]

My receiver is: Kaon 570 2Ci

The diseq is between the motor and the receiver.
The parameters in USALS are correct, because if I do a reset the motor
works properly until the motor looses the the power.


Sorry for my delay in response.


Thanks

[rainman]

Originally Posted by onoves

My receiver is: Kaon 570 2Ci

The diseq is between the motor and the receiver.
The parameters in USALS are correct, because if I do a reset the motor
works properly until the motor looses the the power.


Sorry for my delay in response.


Thanks

move the diseq between the lnb and motor that way it will not interfere with the motor operation.

[wejones]

How did you perform the reset?

I am having similar problems with my 2100 losing position constantly. I don't think it's related to losing power, but it very well could be.

[boroda1]

If I remember it correctly, if power lost then restored, motor should go to it's east limit, then to the last sat/channel position.
If no channels were saved, and receiver is in factory state, motor should go to the east limit, them to "reference" (0 position).
How does one know that "position 0" is lost?
By sending motor to "reference" and seeing that it stops every time in different place? I know that my motor SM3D12, which is in repair now, sometime went to East limit, and got frozen there. But it never lost it's "reference" or "position 0" which is a physical point in the middle of the shaft travel. It just could not go there (or to any other point), because of getting stuck at East limit point, which coincides with AMC sat at 79ºW, so, every time, it "loses position", I was checking a KTEL channel, and it popped up rihgt away, because motor was already there!

[wejones]

Originally Posted by boroda1

...
How does one know that "position 0" is lost?
By sending motor to "reference" and seeing that it stops every time in different place? ....

When I first got the motor, a few weeks ago, when you send it to the reference position, it was just about 1 little line east of the center zero position. Yesterday, when I sent it to the reference position, it must have been 4 or 5 lines east of the center zero position. I haven't tried it again since then. Last night, I programmed in the 4 or 5 sats around AMC3 (which is the main sat I watch), and today it has been able to go to other sats and come back.
I'm half wondering if it's a humidity thing. Yesterday was a real wet rainy day, while today is nice and dry. But next time it loses it's position, I'll try the goto reference thing, and see where it goes.

It's too bad that it's almost impossible to get your head in between the dish and the motor to see the markings on the motor. I'll have to take mirror with me next time.

[boroda1]

Originally Posted by wejones

It's too bad that it's almost impossible to get your head in between the dish and the motor to see the markings on the motor. I'll have to take mirror with me next time.

Yes, I have a bicycle mirror with me too, when I go there!

[Vorg]

Originally Posted by boroda1

If I remember it correctly, if power lost then restored, motor should go to it's east limit, then to the last sat/channel position.
If no channels were saved, and receiver is in factory state, motor should go to the east limit, them to "reference" (0 position).

I have a dms 2100 and it dosn't do that. It dosn't move until you tell it to.

[Sadoun]

Try the reset again. You will see the light flashes Green/Orange 3 times, then GREEN. That means the motor is reset.