HITEC SP-520 PLUS User Manual

SP-520 PLUS Electronic Speed Controller
Thank you for purchasing the HITEC SP-520 PLUS electronic speed controller with reverse.
This unit features competition grade performance with reversing speeds in a fully proportional
mode. It can handle stock and modified class motors, with Internal TEMPFET sensors to prevent
overheating and damaging the unit. Additionally, the unit is polarity protected to prevent damage
in the case of an accidental reversed hook up. The SP-520 has the highest power output and best
power transfer efficiency in its class.
WIRING DIAGRAM
FEATURES
• MOSFETs provide high efficiency with minimum power loss.
• TEMPFET protection prevents damage due to overheating.
• Wide operating range of 6.0 to 8.4 volts with BEC. (5-7 cell)
• Light weight aluminum heatsink with new patented heat conductive silicon boot. (PAT #
4528)
• Polarity protected circuit.
• Reverse delayed system (0.45 second delay time)

HITEC SP-520 PLUS Specifications

General

Brand	HITEC
Model	SP-520 PLUS
Category	Controller
Language	English

Summary

Wiring Diagram and Features

Wiring Diagram

Visual representation of the electronic speed controller connections to battery, motor, and receiver.

Key Features

Highlights MOSFETs, TEMPFET protection, operating voltage range, heatsink, polarity protection, and reverse delay.

Specifications and Installation

Specifications

Details peak/continuous amperage, voltage loss, BEC output, TEMPFET cutoff, dimensions, and weight.

Installing the SP-520 Power

Guidance on mounting lugs, connectors, and connecting the controller to the car's battery and motor.

Neutral Setting

Procedure for setting the controller's neutral position using the transmitter and adjustment wand.

Advanced Settings and Protection

High Speed Setting

Instructions for adjusting the full power potentiometer for optimal throttle response.

Reverse Functionality

How to use the reverse function and potential adjustments needed for proper operation.

Tempfet Protection

Explanation of overheating protection and troubleshooting steps for causes of excessive heat.

Aluminum Heatsink and Silicon Boot

Importance of the heatsink and silicon boot for cooling and MOSFET separation during high-speed running.

Additional Tips and Wiring

Monolithic Capacitors

Guidance on installing capacitors to prevent radio interference from motor static electricity.

Air Circulation

Recommendations for mounting the controller for optimal cooling and efficiency.

Power Loss Protection

Advice on keeping wires short and connecting motor wires directly for best results.

Alternate Wiring and Diagram

Information on adapting connectors and wire color coding for different systems.