Help with JoyStick data

[ljcox]

I find that the attached JoyStick data sheet is ambiguous in some areas.

Under the heading Order Code / Voltage Swing 1, 2 & 3 it states:-

Input Voltage Vs 10V, 12V, 12V

Output voltage swing +/-10% Vs, +/-8.3% Vs or +/-10% Vs

But on the next page, under Specifications / Electrical it states:-

Supply Voltage Vs Range 0-8V, 0-10V, or 0-12V Maximum 14Vdc
Output Voltage Swing +/-10% Vs, +/-8.3% Vs with respect to the centre tap
Error Signal >+/-25% Vs
Centre Tap Voltage 50% Vs +/-1%

I've coloured the conflicts.

Red - Obviously Vs is the supply voltage, not the Input Voltage.

Green - One states 10, 12, 12 & the other 8, 10, 12. ??

And what do they mean by eg. 0-8V? Obviously, this can't be a range as the unit can't operate with a supply voltage of 0V, so they must mean that the red wire is connected to +8V and the black to 0V.

Blue - Why 3 in one case and 2 in the other?

What do they mean by "Error Signal"?

I'm happy with the Centre Tap Voltage.

For example, if you use Vs = 10 Volt, then 10% of Vs is 1 Volt. The centre tap voltage is nominally 5 Volt, so the output of the JS will change from 5 Volt to 6 Volt (continuously) when the JS is moved one way (say +X) and from 5 Volt to 4 Volt when it is moved the other way (ie. -X).

The Y axis is the same, ie. 4 Volt, +Y; 6 Volt, -Y.

Any advice will be appreciated.