[GreenKeys] LPW 300 paper winder

[Duncan Brown]

Jack,

Thanks.  I didn't think a series resistor would affect the speed much of 
a sync AC motor, but maybe it reduces the torque some. There is a 
bail-operated mercury switch to shut off the motor when the paper gets 
tight.  Maybe with the resistor in there, it didn't have enough torque 
to pull the bail tight enough to shut its self off??

Duncan
K2OEQ


On 31-Mar-18 09:04, Jack wrote:
> It slows the motor, keeping tension on the paper reel. It’s often removed to save the motor from being stalled all of the time.
> Jack K2TTY
>
>
>
> Sent from my iPhone
>
>> On Mar 30, 2018, at 8:47 PM, Duncan Brown <duncanancy at earthlink.net> wrote:
>>
>> I just acquired a LPW 300 paper winder. In checking it out, I found that there is a large power resistor (cant read it, but parts list says 600 Ohms) mounted next to the motor, but it has been taken out of the circuit.
>>
>> Did this resistor go in series with the motor?? (but it is a synch AC motor).
>>
>> Anyone know its purpose?
>>
>> Thanks,
>>
>> Duncan
>> K2OEQ
>>
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