User Guide

Lynxmotion SSC-32U Servo Controller Board
Electronics Guide
R/C Timed Pulse (repeated every 20ms)
Hitec Standard Servo Showing Operating Angle vs Signal
When an RC servo reaches a specific angle, it will try its best to retain that position, provided it
keeps receiving the signal every 20ms. If the torque is higher than what the servo can provide,
the current will increase drastically, causing the servo to heat up and eventually fail.
Most R/C servos have a duty cycle of around 25%. The “duty cycle” corresponds to how long
the motor should be on versus off. This does not mean to say that you could run a servo motor
for 1 hour and let it cool off for 3 hours; we suggest that a normal servo motor should be in
constant operation for less than around 10 minutes, at which point it will ideally need around 30
minutes to cool off.
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