I2t Overheating Protection

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sjur vestli's Avatar (by Gravatar)sjur vestli posted on
September 4, 2007, 2:44 am
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Dear Group,

We accidentally fried (it stinks really bad) a largish DC Motor (1.5
kW), it turns out that the power amplifier / controller that our robot
controller sits on top of does not have any protection and if you give
"maximum setpoint" for a few minutes then the insulation of the windings
start melting, the brushes weld to the rotor and all sorts of nasty
things. Can anybody recommend a good description of how to implement a
I2t overload protection in SW (or another simple overload protection
scheme)?

Kind regards

Sjur J. Vestli

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sjur vestli's Avatar (by Gravatar)sjur vestli posted on
September 4, 2007, 2:44 am
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Re: I2t Overheating Protection

Dear Group,

We accidentally fried (it stinks really bad) a largish DC Motor (1.5
kW), it turns out that the power amplifier / controller that our robot
controller sits on top of does not have any protection and if you give
"maximum setpoint" for a few minutes then the insulation of the windings
start melting, the brushes weld to the rotor and all sorts of nasty
things. Can anybody recommend a good description of how to implement a
I2t overload protection in SW (or another simple overload protection
scheme)?

Kind regards

Sjur J. Vestli

Other Related Threads

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