Tekin 610r motor limit

[graemevw]

I've read conflicting reports, some say no limit, some say 11t limit.
Does anyone know for sure?
Thanks.

[winner_evo]

According to the manual it says not lower than 16T recommended for the 610R

https://www.teamtekin.com/manuals/TSC610G,R10,F10.pdf

[graemevw]

That manual doesnt cover the 610r.
It does say 16t for the 610g and for the r10, but no mention of 610r as far as i can see.
610g looks the same though so maybe has the same limit as 610r?

[graemevw]

I guess the 610r is basically a 610g with regenerating capability?

[graemevw]

Reading further, although specs say 16t, it later says thats for the r10 and the 610g is ok down to 11t.

[graemevw]

I really should read more carefully
So, 610g is good for 11t, or TWIN 16t motors.
Also says its regenerating, so no clue what the difference between a 610g and 610r are!

[winner_evo]

That manual is for the 610 series, R-10 is the 610R, R meaning reverse. Generally forward only speed controls have lower turn limit than speed controls with reverse.

18 OPERATING TIPS

Recommended motors: 11 turns (16 turns on model R-10).

Unless your speed controller is completely different to the 610G pictured, then that's what the manual says.

[graemevw]

That manual is for the 610 series, R-10 is the 610R, R meaning reverse. Generally forward only speed controls have lower turn limit than speed controls with reverse.

18 OPERATING TIPS

Recommended motors: 11 turns (16 turns on model R-10).

Unless your speed controller is completely different to the 610G pictured, then that's what the manual says.

The r10 is not the 610r.
The r10 in the manual is this, pic taken from the manual...


This is my 610r


Looks exactly like a 610g, but is marked 610r and states the regenerating facility on the case.

So, i assume the 610r has the same limit as the 610g.

That manual doesnt cover my 610r, the r10 is a completely different esc.

[winner_evo]

Oh, I thought that manual was like other Tekin manuals that cover the same series of speed controls, obviously not

No idea then, ignore what I said

[graemevw]

Oh, I thought that manual was like other Tekin manuals that cover the same series of speed controls, obviously not

No idea then, ignore what I said

The manual linked was still handy though.
Id still like to know for sure what the deal with 610r is, but for now ill just assume its also 11t limit.

[winner_evo]

Problem is those Tekin manuals are not very clear, I have a Tempfet pro (PT) and here is the manual....

http://www.competitionx.com/pdf/esc/tekin-temfet-manual.pdf

The picture in that manual is the older Tekin and refer to as "Temfet", they only reference ESC300 PRO T & ESC600 PRO XT. My speed control doesn't have 300 PRO T written on it, only Tempfet pro PT but I know it's a 300 as it's 4 wire.

[graemevw]

I found some archive text of a review from 1993. Its a little hard to read due to some odd formatting.
Mentions pretty much everything except motor limit




JANUARY 1993 21


TEKIN 610R


by JOHN HIST


T EKIN'S* NEWEST racing speed
controllers, the 41 1G and the 41 OK,
swept the racing world with a vengeance
and set new standards for high-frequency
speed controllers. Tekin must have used
what it learned when developing these
controllers to make its ne w reversing speed
controller. This should make the TSC
6 I0R the logical choice if you want all the
advantages of a high-frequency electronic
speed controller (ESC) and the fun of
having reverse.


A quick look reveals that the 61 OR is a
reversing speed controller with an adjust-
able reverse delay, so it also has brakes. It
has the following features;

* 12 FETs (eight for forward, four for
reverse);

* high-frequency motor control;

* three trim potentiometers (neutral, full
speed and reverse delay);

* built-in, pulse-checking LED;

* BEC circuitry;

* installed Tamiya-style battery connec-
tors and bullet motor connectors;

* Tekin 's universal receiver connector
system.

It comes with an instruction book, heat
sinks, plugs (to keep dirt out of the adjust-
ment holes), an adjustment screwdriver.


servo-mounting tape, tie- wraps and Tekin
decals.

I took the controller out of its case to
see what its insides look like. Its construc-
tion looks extremely good. Most of the
parts are surface -mounted. The copper
that's required to handle the motor cur-
rent is massive and covered with heavy
solder to further enhance its current-
carrying capacity. The wires that go to the
motor and battery are large and color-
coded — pink and blue for the motor, red
and black for the battery. The
case has a tongue-and-
groove seal that should lock
out dirt. The only thing that
doesn't make sense is that
the ease has five holes, but
only four wires are used. This
leaves a hole through which
dirt can enter the case!
There's a place on the printed
circuit board for a fifth heavy
wire, and it could come out
through this hole, but for the
life of me, i don '! know what
the extra wire would be used
for. Anyway, I simply cov-
ered the hole with tape to
keep out dirt.

I've documented in this
column that reversing ESCs have higher
“on” resistances than forward-only-with-
brake controllers (high “on” resistance
reduces the battery voltage that passes
through thecontroller and causes the FETs
to become hot). But then, the point of
using a reversing ESC isn't to go world-
class racing, but rather to make your car
work like a full-size one and, just simply,
to have fun. Therefore, the questions that
must be answered are: is the controller's
resistance low enough to produce gear-
jamming, mind-boggling performance?
Is the unit rugged enough to survive a fair
amount of abuse? Just how smooth is the
throttle response of a high-frequency ESC?
Having established that the 61 OR was
crafted with Tekin 's usual attention to


high quality, 1 headed to the “Scoping
Out” lab to answer these tough questions.

VOLTAGE-DROP TEST

I hooked up the 6 1 OR and tested its resis-
tance. With 12 amps of current flowing,
the voltage drop along the length of the
wire was 0.22 volt, which yields a resis-
tance of 0.018 ohm. Two inches along the
wire, the voltage drop was 0.14 volt’ — &
resistance of 0.01 1 ohm.

This places the 61 OR at the top of the
heap of reversing ESCs. I know of only
one that has a lower “on” resistance — the
Turbo Zeta. It's a monstrous unit that’s
intended for large pulling trucks and high-
voltage boats, and it requires a second
battery pack to operate the reverse func-
tion. Based on resistance alone, the 6 1 OR
is a kickin' trick replacement for the me-
chanical speed controllers that come in
most buggies.

Another interesting observation is that
the 2-inch “on” resistance is almost twice
as good as the end-to-end “on" resistance.
Most of this can be contributed to the
battery connectors and motor connectors.
If you have the skill to replace the connec-
tors, I've found that Lite speed* Super
Connectors work extremely well Just re-
member, if you reverse any of the connec-
tions, you'll probably wipe out the con-
troller and void the warranty. IVe also
found that the real offender is the Tamiya-
style battery connector. So if you replace
only this connector, you won't have to
worry about swapping the battery and
motor wires. If you have any questions, I
hope that there's a good hobby shop in
your neighborhood where you can find
help.

LET-IT-COOK TEST

Although it was low, the “on” resistance
was still in the reversing ESC range —
high enough to cause heating. To check
this, 1 cranked the current up to 20 amps
and let the controller run wide open with
(Continued on page 26)



24 RADIO CONTROL CAR ACTION


TEKIN TSC 61 OR


“SCOPING OUT”
LAB AND TESTS

THE LAB consists ot:

* an oscilloscope

* a digital voltmeter

* a variable-load resistor bank

* a 6V 3GA electricity supply

•a Pit Stop Radio servo/speed con-
troller tester.

The oscilloscope Is used to moni-
tor the controller's output and to
guarantee that it’s fully on.

The digital voltmeter takes all the
voltage-drop readings and verifies
the reading on the current meter.

The resistor load bank consists
of 40, 1 2 -ohm , 5W power resistors
that can be switched on and off one
at a time to vary the load between.6
amps and 20 amps, but the stan-
dard 12 amps are usually used.

In series with the resistors is a
25A Simpson current meter and a
1 -percent 0.01 -ohm resistor. By
measuring the voltage drop across
this resistor, the current-meter's
reading can be double-checked. Of
course, the lab power supply pro-
vides the test current,

* VOLTAGE-DROP TESTS, These
are the first tests. It's virtually im-
possible to read an ESC’s resis-
tance directly, so I measure the
voltage drop across it with the re-
sistor bank set up for 12 amps of
current, f then calculate the
controller's “on” resistance by di-
viding the measured voltage drop
by 1 2 amps. I take the voltage read-
ing twice; along the full length of the
battery and motor wires {including
connectors) and 2 Inches along
them. The first reading helps me to
determine an ESC's "on" resistance
as it comes from the factory, and
the second gives a standard read-
ing with which I compare ESCs,

* LET-IT-COOK TEST. I adjust the
resistor bank to pass 20 amps of
current, then 1 jam the throttle wide
open and let the ESC pump the 20
amps,

* DEAD-SHORT TEST, With this
test, I check whether the controller
can su rvive the heavy current caused
by a jammed gear or a fried motor.
No one likes to have this kind of
trouble and discover that his ESC
has been destroyed, too.


DIMENSIONS:

Height (with heatsink installed) ....1.13


inches

Width 1.75 inches

Length 1,96 inches


Weight (with wires and heat sink) 3

ounces


TUNING;

Access to controls ..... Excellent

Ease of adjustment .... Good

PRICE;

Suggested price $165

Warranty 120 days

ELECTRICAL:

(Manufacturer's specs)

Max voltage 10 cells


COMMENTS:


its heat sink in place, but with no cooling
air. After 15 minutes, the 61 OR was still
operating normally even though the heat
sinks were hot to touch. The Tam iy a- style
battery connector was very hot, but the
motor connectors were barely above room
temperature.

DEAD-SHORT TEST

I placed a piece of monster wire across the
motor leads, and the current jumped to 41
amps — the limit of my bench supply. I let
the controller struggle along this way for
one minute, after which it was smoking
hot and the battery connector was so hot
that it had started to soften. Yet, through
all of this, the 61 OR never stopped pump-
ing current, This controller appears tough
enough to withstand abuse and misuse
without going to the great speed-
controller resting place in the sky.

SETTING UP

Tekin’s instruction books are among the
best In the industry. The 6 1 OR's 22-page-
long, full-color book covers every aspect
of the installation in great detail; even
newcomers should be able to install this
controller successfully. The only thing
that could be a little confusing is getting
forward and reverse straight. For most
Futaba transmitters, the throttle-
reversing switch must be in the reverse


Min voltage 4 cells

Max current forward 200 amps

Max current reverse 100 amps

Resistance 0.008 ohm

TEST PARAMETERS:

Voltage 6 volts

Current 12 amps


TEST RESULTS:

Voltage drop to end of wires 0.22 volt

Voltage drop, 2 inches along wires . 0.14

volt

BEC voltage, 6-cell pack 4,99 volts

Resistance to end of wires* .. 0.018 ohm
Resistance, 2 inches along wires* 0.01 1

ohm

* R esi stance= vo Ita ge d ro p/am p s


mode. If everything is correct, the pink
motor wire should go to the 'V* motor
terminal and the blue should go to to
the ”

A good way to make sure that forward/
reverse is correct is to dial -out reverse. To
do this, turn the reverse-delay potentiom-
eter (pot) fully counterclockwise. The car
should go forward only and the brakes
should be good. If the car runs forward
with the trigger in the full brake position,
you have to change the throttle-reversing
switch on the transmitter. If the car goes
backward when you apply forward trig-
ger, reverse the motor wires.

ROAD TEST

I installed the 610R in my Kyosho Side-
ways. I use this car a lot to test ESCs
because its larger- than- usual tires permit
me to run it on almost any surface. I’ve
equipped it with a Slot Machine stock
motor and a 7-cell SCR pack, and it's
geared high to go fast and to abuse the
motor and speed controller.

I set up my Futaba* Magnum JR ac-
cording to the 6 1 OR' s instructions, I started
with zero reverse delay (this control was
set to full clockwise). I then turned on the
transmitter, plugged in the battery and
turned on the speed controller. The car's
rear wheels started to spin. I slowly ad-
(Continued on page 142)


Tired of mechanical speed controllers with their tangled mess of servos, resistors and rotary
switches? Maybe it’s time to look at the Tekm 61 OR This is a reversing speed controller: this
would usually mean it couldn't be use for racing, butTekin has incorporated a reverse-delay
adjustment that, when turned fully counterclockwise, dials-out reverse. This, coupled with
its ve ry I o w “o n” res ista nee (to r a re ve rsi ng -sty 1 e ESC) could make the 6 1 0 R a hot, trick item
for a backyard-burning buggy and a fairly good racing speed controller at your local stock-
class, off-road track.

[Lonestar]

Kevin Orton knew his stuff