Reply to thread

Message

<blockquote data-quote="jeallen01" data-source="post: 1141953" data-attributes="member: 176704">The Rx won't send &quot;too much current&quot; because the current drawn will depend on the resistance/impedance of the load, i.e. the motor &amp; LNB (good old Ohm's Law is your friend on this matter <img src="https://www.satellites.co.uk/styles/default/xenforo/smilies/smile.png"&nbsp; class="smilie" loading="lazy" alt=":)" title="Smile&nbsp; &nbsp; :)" data-shortname=":)" /> ) - so, unless there's some sort of short-circuit in the latter combo, then they will inherently &amp; automatically limit the current to the required (and safe!) level. However if such a fault does occur then the Rx LNB o/p current limits will kick in and (usually) simply shut down (as happens if there is a cable short-circuit fault - which is far more likely than a similar fault in the motor or LNB!).What could cause damage is if the Rx o/p voltage is too high because that would drive more current into the load and cause overheating - but that's very unlikely unless there's a fault in the receiver, such as the voltage stabiliser components having gone short-circuit.FWIW: the only situation where I've ever seen a &quot;too high&quot; voltage issue was with my original NEC 5000 H2H motor which ran at 24V from an Rx which outputted that to the motor, when I bought a newer Rx which had a 36V o/p - so, like others in the same situation, I fitted a resistor bank (Ohm's Law, again!) in the o/p to the load so that the voltage actually at/across the motor was reduced to 24V, and it ran fine for years like that <img src="https://www.satellites.co.uk/styles/default/xenforo/smilies/smile.png"&nbsp; class="smilie" loading="lazy" alt=":)" title="Smile&nbsp; &nbsp; :)" data-shortname=":)" />.</blockquote>

[QUOTE="jeallen01, post: 1141953, member: 176704"] The Rx won't send "too much current" because the current drawn will depend on the resistance/impedance of the load, i.e. the motor & LNB (good old Ohm's Law is your friend on this matter [I]:)[/I] ) - so, unless there's some sort of short-circuit in the latter combo, then they will inherently & automatically limit the current to the required (and safe!) level. [I]However if such a fault does occur [/I]then the Rx LNB o/p current limits will kick in and (usually) simply shut down (as happens if there is a cable short-circuit fault - [I]which is far more likely than a similar fault in the motor or LNB![/I]). What could [I]cause[/I] damage is if the Rx o/p voltage is too high because that would drive more current into the load and cause overheating - but that's very unlikely unless there's a fault in the receiver, such as the voltage stabiliser components having gone short-circuit. FWIW: the only situation where I've ever seen a "too high" voltage issue was with my original NEC 5000 H2H motor which ran at 24V from an Rx which outputted that to the motor, when I bought a newer Rx which had a 36V o/p - so, like others in the same situation, I fitted a resistor bank (Ohm's Law, again!) in the o/p to the load so that the voltage actually at/across the motor was reduced to 24V, and it ran fine for years like that :). [/QUOTE]

Verification