Bourns PRM16 motorized pot — very simple Q

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myleftear

myleftear

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Joined 2017
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#1
Hi friends

This is an embarassing question: What is the orientation of the backside's drawing (with the motor's connection pins) in the datasheet (see below)? The pot's connection-pins downwards I guess? (So, looking at the pot's back with the pins downards oriented, V+ is on the right side?)

:spin:
I kinda think it's either way and can be just tested (swap the wires if it doesn't work), but I'd like to have it confirmed because I have a little issue here (motor's not turning although everything else seems to work), and it would be comfortable to have one variable less...

Thank you
 

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#2
Doesn't matter for testing.
Motor voltage is 4.5V.
Connecting one way will raise volume, connecting the other way will reduce volume.
Just crocodile clip it to a power source.
Put a DMM in series to measure motor current draw (<=100mA).
 
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#5
Thank you russc, the jig I am using is preprogrammed. It’s a „relatt“ relayboard from elma (out of production though), to which I only had to connect the remote.
It’s a bit itsy-bitsy but today I was successful.
The Motor is spinning 🙂
 
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