Hitec 7955 overload question  
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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Hitec 7955 overload question
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Hitec 7955 overload question - 7/15/2008 10:09:53 AM   
rajul



Posts: 6220
Joined: 6/18/2002
From: Missouri City, TX, USA
Status: offline 		Hi Mike, if I were to program the overload protection for the 7955 to say 70%, what will happen if there is an external torque overload on the servo? Will the servo amp burn, or will the servo arm be forced to rotate in the direction of the external torque load (without burning the amp)? Thanks

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RE: Hitec 7955 overload question - 7/15/2008 6:38:32 PM   
MikeMayberry



Posts: 2846
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		With the overload protection activated, the servo will reduce the torque (current) as needed to protect the amp from burning up.

Mike.

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(in reply to rajul)
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RE: Hitec 7955 overload question - 7/15/2008 11:42:33 PM   
rajul



Posts: 6220
Joined: 6/18/2002
From: Missouri City, TX, USA
Status: offline 		Hi Mike, I understand that the servo will have a reduced max torque with the overload protection activated. My question is what will happen to the servo mechanically and electrically if the external torque is higher than the reduced max torque? Will the servo arm be forced to rotate (under the external torque)? Will the amp be damaged? Thanks again

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RE: Hitec 7955 overload question - 7/16/2008 5:56:35 PM   
MikeMayberry



Posts: 2846
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		I don't really understand your scenario with constant external force?

The torque output will continue to be reduced to prevent overload and damage to the amp.

Mike.

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Hitec RCD Rep
http://www.hitecrcd.com

(in reply to rajul)
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RE: Hitec 7955 overload question - 7/16/2008 6:26:48 PM   
rajul



Posts: 6220
Joined: 6/18/2002
From: Missouri City, TX, USA
Status: offline 		Hi Mike, no what I meant was an increasing external torque until the external torque exceeds the holding torque of the servo. Will the servo arm be forced to rotate in the direction of the external torque?

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RCU Moderator
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RE: Hitec 7955 overload question - 7/17/2008 5:59:21 PM   
MikeMayberry



Posts: 2846
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		Since the holding torque of a digital servo is much higher than the standing (movable) torque I would think that it wound not move.

Mike.

_____________________________

Hitec RCD Rep
http://www.hitecrcd.com

(in reply to rajul)
       Post #: 6

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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Hitec 7955 overload question
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