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Re: Programming the HS-7955 TG
Could you please let me know something........on Hi-tec website it says you can only program the features listed eg.(overload protection) with the HFP-20 feild programmer can I not use the HPP-21Plus to program these features. The web page say's only the HFP-20 will program the listed features. Please could you let me know if I can also program overload protection with the HPP-21Plus Thank You Very much a loyal Hi Tech customer William C.

HPP-21 HITEC digital servo programmer and “all brand” servo tester - Manual.

"7. OLP Rate (Overload Protection Rate) Setup
Note: If OLP Rate is a function your HITEC digital servo supports, the OLP rate choice screen shown below will be active.
OLP is a “protection against servo damage” feature. When a servo is at “full stall torque” and the servo power amplifier is sending the maximum power to the servo motor, the OLP circuit will engage and reduce the power being sent to the motor.
This act of power reduction could perhaps help prevent a critical failure of one or more servo components.
Simply put, POWER = HEAT, and too much heat can destroy a servo motor and other critical servo parts.
Servos in some very high stress applications such as 1/8th. Scale truck brake/throttle servos and other obscure industrial, but no less critical applications can benefit from the proper application of this feature.
OLP rate selection allows users to “when the servo is fully stalled the OLP circuit will reduce the power from the servo amp to the servo, by the percentage selected”. Selecting a value of 20%, will reduce the power sent from the amp to the motor by 20%. This effectively reduces the servo power to 80% of its potential"

Regards
Alan T.
Alan's Hobby, Model & RC FAQ Web Links