HobbyKing YEP Series Instruction Manual Download Page 1

Instruction Manual for YEP Series of Electronic Speed 

Controllers 

1 Features:

- 6 step adjustable timing or automatic timing adjustment

- Lipo(Auto) / NiMh adjustable.

- Adjustable brake

, amount

 and speed are proportional to the 

s

oft-start.

- Full utilization of the throttle stick 

range 

by programming in the RC-Setup

- PWM range from 8 KHz to16KHz adjustable 

in steps of

 1KHz!

-

T

he PWM switching rate 

can  be 

applie

d

 as little as 

you  require

 

or

 as much as 

you  require

-

Higher

 

frequency for low inductive motors,

- Lower frequency for less switching losses.

-

Active free-wheel

,

 

this

 can be disabled with the Prog Card II.

-

Active free-wheel

 reduces the losses in the partial load range

 

but can lead to problems in

 

rare

cases.

 

In relation 

to

 speed 

control

 it can 

lead

 to rougher transitions from part load

s

 to

 

full load

s,

avoid switching 

the

 speed controller mode 

when using

 full power.

2 RC-Setup:

General beep sequences outside of the RC-Setup

  programme

:  Constant monotonous beep 

signals 

you  are  in 

programming mode.

When the throttle stick in the neutral position, a group of descending beep sequences means that it

 

is receiving 

signal. Afterwards (after 

the 

signal

  is  recognised)

 

more

 beeps indicate 

the

 

recognition of the 

selected 

battery type. 

T

hen

 

the 

next

 group of ascending beeps means that

 

the ESC is armed! The ESC is 

now 

ready for 

use

Take care once the ESC is armed

!

The correct setting is particularly important for Lipo battery pack, therefore an acoustic control

 

takes place every 

time you 

power on the ESC.

Lipo-setting (Lipo auto-mode 2-6 (14) cells):

2 identical beeps => 2S Lipo recogni

s

ed 

 

3 identical beeps => 3S Lipo recogni

s

ed 

♪♪♪

And so on...  

For the ESC to 

successful

ly

 recogni

se

 

the number of cells 

the battery pack should always be 

fully charged

, even with 3 cells or more.

Otherwise, with high cell numbers

 

it can happen that a cell is missed and thus the under voltage 

protection would trigger too late. The cells of battery pack

s

 can be programmed by Prog Card II. 

With more than 6 cells the beep sequence becomes two high pitch beeps and then two low 

pitch beep

s,  This  is  because

 following

 

the count of so many beeps

  is  difficult

high 

numbers of cells should not be operated in the auto mode anyway. We recommend to set the 

number of cells permanently with the Prog Card II.  

The under voltage protection is triggered at 3.1V per cell. 

T

his conservative value can prolong 

the life of 

your 

Lipo battery pack! It is important to make sure the 

correct 

number of cell

s is 

detected

 to avoid 

wrong signal 

for

 under voltage protection.  

A fixed under voltage limit can only be programmed with the Prog Card II. You can also set the 

limits for LiFePo battery pack 

using

 the Prog Card II.  

Ni-xx batteries--setting (NiCd/NiMh): 

2 Beeps high/low => NiMh-Mode: under voltage limit approximately equals 0.65

, m

ultiply the 

open circuit voltage of each cell.

How to programme the ESC using a transmitter.

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