Error Signal Check Steps And Solutions

Document: Service Manual Description: Treadmill Model: M7 E / M7L E Page: 2 of 25

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Table of Contents

1. Error Signal Check Steps And Solutions 1.1 Error Signal:『LS』 ----- Page 3~7

1.2 Error Signal:『E1』 ----- Page 8

1.3 Error Signal:『E2』 ----- Page 8~9

2. Information For Components 2.1. Interface PCB -----Page 10~15

2.2. Console Wire -----Page 16

2.3. Speed Sensor -----Page 17

2.4. Inverter -----Page 18

2.5. Incline Motor -----Page 18~19

2.6. Membrane Key -----Page 20

3. Engineering Mode 3.1. Engineering Mode 1: Factory Settings ----- Page 21~22

3.2. Engineering Mode 2: Used Information Management ----- Page 22

3.3. Engineering Mode 3: Real Speed and Incline Parameter ----- Page 22

4. Other Information 4.1. Real Speed Do Not To Fit In With Display Speed ----- Page 23

4.2. No Any Display on Console (No Power) ----- Page 23

4.3. Abnormal Display on Console ----- Page 24

4.4. Can Not Decrease Speed ----- Page 24

4.5. Membrane Key Lose Function ----- Page 25


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1. Error Signal Check Steps And Solutions 1.1. 【LS】:Can not receive signal from speed sensor over 8 seconds while workout, all

windows display will off, all output will stop, and shows 【LS】 on TIME window.

※If this is a all new product that just finished assemble, there are more possibly in assemble

problems, maybe connect wire not well or wire damaged while assemble.

1.1.1. Steps illustrate:

Step illustrate Auxiliary Photo

1

Shows【LS】 on TIME window.

2

OFF the AC power source and wait 10

seconds then ON the AC power.

3

Press START.

4

Do the running belt moved?

A:Moved then shows【LS】:Execute step 5~8

B:Did not move then shows【LS】:Execute

step 9~12

C:Moved but no any error signal at all:

Execute step 13~14

？

OFF

ON


4


5

Press STOP then press START and FAST

simultaneously immediately, to leave you

hand from keys till dot-matrix window shows

WELCOME.

6

LED display windows will do the scan mode

after shows WELCOME.

After scan mode, to press ENTER till incline

window shows 『15』 then press START to

begin calibrate mode.


5


7

Do it can be calibrating normally or shows

LS on TIME window?

If calibrate normally and return to idle mode,

please check the SPEED parameter on

CALORIES window when calibrate speed at

max speed 20km/h (±0.1).

In normal condition, the SPEED parameter

shall be between 340~350.

8

If calibrate abnormal, open motor cover and

check speed sensor connected well.

If speed sensor connected well, please

replace the sensor and check again.

Refer to 2.3『Speed Sensor』

If still shows error signal, have to check the

console wire, damage or connect terminal

problem.

If console wire check ok, please replace the

console wire then back to execute step 2,

check the error signal disappear or not.

Refer to 2.2『Console Wire』

If still shows error signal after replace the

console wire, please replace the console

PCB then back to execute step 2, check the

error signal disappear or not.

Calibrate abnormal, show 【LS】

Calibrate normal, return to idle mode


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9 Open the motor cover then ON the AC power,

press START to begin and check the pilot

lamp on interface PCB.

1. Is the LED7 light up before shows 【LS】?

2. Is the LED6 flash before shows【LS】?

LED7 or LED6 not light or flash: Execute step

12~13.

LED7 light up and LED6 flash: Execute step

10~11.

10 If LED6 & LED7 normal, have to check the

inverter first, if inverter check normal, please

replace the interface PCB then back to

execute step 2.

Refer to 2.4『Inverter』

11 Check the console wire, damage or connect

terminal problem.

After check or reconnect or replace the wire,

back to execute step 2.


12 After check or reconnect or replace the wire

but still shows error signal, please replace

the console PCB then back to execute step

2.

LED7

LED6


7


13 If all function are normal and no error signal

after reset power, it maybe cause by power

core, maybe power core connect not well,

please check the power core.

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If all function are normal and no error signal

after reset power, maybe the loading is too

heavy and inverter to start the over current

protect mode. If loading is too heavy the

motor noise will more louder over 12km/h

and running belt speed will decreased or

slippery while loading. Please maintenance

or replace the running belt and running deck.

On the AC power and check the fan where on

the inverter operate normal, otherwise the

inverter will over heating and to start protect.

Refer to 2.4『Inverter』


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1.2. 【E1】:When memory device damaged or read or write had program, all window display

will be off and all output will be stop and shows【E1】on TIME window, shows【EEPROM

ERROR】 on dot-matrix window.

1.2.1. Solution: Replace the console PCB.

1.3. 【E2】:IF incline had some problems when initial, incline can not reach the right position,

will shows 『ELEVATION ERROR PRESS STOP TO BYPASS』on dot-matrix window, press

STOP to bypass the signal but incline function can not be use, if incline had some

problems when during workout, the INCLINE window will shows 【E2】but other function

are normal to use.

※If this is a all new product that just finished assemble, there are more possibly in

assemble problems, maybe connect wire not well or wire damaged while assemble.

1.3.1. Steps illustrate:


1

Open the motor cover then switch OFF the

AC power source and wait 10 seconds then

ON the AC power.

2

Check the pilot lamps LED4 & LED5 on

interface PCB before shows【E2】.

The LED4 or LED5 light up before show E2?

Yes: Next step.

No: Check console wire is connected well.

Refer to:

2.1『Interface PCB』

2.2『Console Wire』

OFF

ON


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5

Check the console wire, damage or connect

terminal problem.

After check or reconnect or replace the wire,

back to execute step 1 to check.


6

After check or reconnect or replace the wire

but still shows error signal, please replace

the incline motor or internal variable

resistor(VR) then back to execute step 1 to

check.

Refer to 2.5『Incline Motor』

7

After replace the incline motor or internal

variable resistor but still shows error signal,

please replace the console PCB then back to

execute step 1 to check.


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2. Information For Components 2.1. Interface PCB:

2.1.1. Appearance and connector description:

2.1.2. Description of pilot lamps on interface PCB:

LED2: Pilot lamp of console power, normal full light up when power ON.

LED3: Pilot lamp of decrease speed, flash when decreasing speed, switch off while speed

reached.

LED4: Pilot lamp of incline UP, light up when increase grade, switch of while grade reached.

LED5: Pilot lamp of incline DOWN, light up when decrease grade, switch of while grade

reached.

LED6: Pilot lamp of increase speed, flash when increasing speed, switch off while speed

reached.

LED7: Pilot lamp of enable motor, light up while work, switch off while stop.

Console wire Speed sensor

wire

Inverter control wire

Incline VR wire

AC power

input

90~240Vac

Incline UP

Incline COM

Incline DOWN

Inverter AC power

LED2

LED7

LED6

LED3

LED4

LED5

U5

U2

U1


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2.1.3. Interface PCB function check:

2.1.3.1. Check incline function


1 OFF the AC power, to pull out the console

wire and incline motor power wires, then ON

the AC power, measure the terminal UP &

COM or DOWN & COM by multi-meter, there

shall be not have AC voltage(100~240V) at

normal condition.

ON the AC power


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2 Connect back the console wire, pull out the

incline motor power wires only, press start to

quick start, short the console wire PINs for

incline UP by metalwork, to measure

terminals UP & COM by multi-meter, it shall

be have AC voltage at normal condition and

pilot lamp LED4 will light up.

3 Connect back the console wire, pull out the

incline motor power wires only, press start to

quick start, short the console wire PINs for

incline DOWN by metalwork, to measure

terminals DOWN & COM by multi-meter, it

shall be have AC voltage at normal condition

and pilot lamp LED5 will light up.

Short the black and orange wire PINs

(PIN 1 and PIN 4)

Short the black and yellow wire PINs

(PIN 1 and PIN 5)


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2.1.3.2. Check speed output device


1 Switch ON the AC power, short the enable

motor component by metalwork and keep

on.

Short the motor fast component by

metalwork, then metalwork leave the motor

fast component (open), to do 5~10 times

circulates.(shortopenshortopen…)

Motor shall start to rotate and increase

speed, if you to do more circulate it will be

faster.

If to operate with console but shows LS, but

use this kind of way to operate the motor

and motor worked, it is mean that the

interface PCB is damaged.

Short the enable motor component (U5) by

metalwork

Short the motor fast component(U2) by

metalwork

Metalwork leave the motor fast component

(U2)

Motor shall start to rotate and increase

speed


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2 To continue, do not move out and keep on

short the enable motor component.(Motor in

the rotating condition)

Short the motor slow component by

metalwork, then metalwork leave the motor

fast component (open), to do 5~10 times

circulates.(shortopenshortopen…)

Motor shall decrease speed, if you to do

more circulate it will be slower.

If to operate with console but can not

decrease the speed, but use this kind of way

to decrease the speed and it did work, it is

mean that the interface PCB is damaged.

Do not move out and keep on short the

enable motor component

Motor shall decrease speed

Short the motor slow component(U1) by

metalwork

Metalwork leave the motor fast component

(U1)


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2.1.3.3. Check power supply for console


1 Switch ON the AC power, check the pilot

lamp, it shall be full light up in the normal

condition.

It shall not flash or slight light up.

2 To pull out the power supply terminal and

measure the voltage by multi-meter.

It shall be have DC voltage 11~13V.


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2.2. Console wire check:

2.2.1. Check all connect certainty and outward completely.


1 To pull out the console wire connector plug.

2 Check connector internal PINs, it shall not be

crooked.


draw back.

4 Check the wires outward; it shall not be

crush injuries or breakage.


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2.3. Speed sensor check:

2.3.1. Check all connect certainty.


1 Check the connector connection with

interface PCB certainly.


draw back.

2.3.2. Check outward completely and function normal.


1 To check the wire, it shall not be crush

injuries or breakage.

2 To turn around the front roller till the magnet

close to the speed sensor, then measure the

wire PINs by multi-meter.

It shall be have low resistance in the normal

condition.(short condition)

3 To turn around the front roller till the magnet

leave away from the speed sensor, then

measure the wire PINs by multi-meter.

It shall be have infinity resistance in the

normal condition.(open condition)


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2.4. Inverter check:


1 Switch ON the AC power and to check the

fan where on the inverter.

It shall be operate when power ON and stop

when power OFF.

2 To execute the 2.1.3.2 step 1 & 2, it shall be

operate normally.

2.5. Incline motor check:


1 Switch OFF the AC power, to pull out the

incline motor power wires. (red/white/black

wire)

2 To pull out the inverter power source

terminal and connect the incline motor wires

white one and red one to inverter power

source terminal.

Switch ON the AC power, the incline motor

shall be operate in the normal condition.


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3 To continue, switch OFF the AC power, to

connect the incline motor wires white one

and black one to inverter power source

terminal.

Switch ON the AC power, the incline motor

shall be operate in the normal condition.

4 Open the incline motor cover, pull out the

connect wires (red/white/black wire) and to

take apart the internal VR.

5 To turning the VR and measure the

resistance(white and black wire connect

terminals), the resistance shall be change

between range 0~10kΩ when turning the VR.

The lowest incline position resistance about

0.83kΩ, the highest incline position about

6.72 kΩ

If you want to replace the incline motor or

VR, you have to connect the new incline

motor all wires to interface PCB and switch

ON the power for correction before fix on the

treadmill. Or to adjust the resistance of VR to

the lowest position value.

Otherwise, it will be jam or break away.


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2.6. Membrane key


1. To pull out the connection from console

PCB.

2. If mull-function when you are using, please

find the PINs definition for keys terminal as

below.

To measure the PINs by multi-meter then

press the mull-function key and keep on, it

shall be have low resistance in the normal

condition(short condition), if got infinity

resistance, the membrane key is damaged.

For example: SPEED UP key mull-function, to

measure the Pin 4 and Pin 8.

PIN P1 P2 P3 P4 P5 P6 P7 P8 P9 P10

P1 INCLINE 9 SPEED 8 INCLINE↑

P2 INCLINE 6 SPEED 6 SELECT

P3 INCLINE 3 SPEED 4 SPEED↓ START

P4 INCLINE 0 SPEED 2 SPEED↑ ENTER

P5 INCLINE12 SPEED 10 INCLINE↓

P6 INCLINE 9 INCLINE 6 INCLINE 3 INCLINE 0 INCLINE12

P7 SPEED 8 SPEED 6 SPEED 4 SPEED 2 SPEED 10

P8 INCLINE↑ SPEED↓ SPEED↑ INCLINE↓

P9 SELECT START ENTER

P10

P1 P10


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3. Engineering Mode 3.1. Engineering Mode 1: Factory Settings

3.1.1. To pull out the emergency stop key then press START and FAST simultaneously and

put the emergency key back, to leave you hand from keys till dot-matrix window

shows WELCOME.

3.1.2. LED will do the scan mode after dot-matrix window show WELCOME, then dot-matrix

will shows『TM016 FACTORY SETTINGS PRESS ENTER』。

3.1.2.1. Press ENTER to set UNIT: dot-matrix shows『UNITS ENGLISH』，press Fast、

Slow、Up or Down to change to『UNITS METRIC』。UNITS ENGLISH: mile、LB.

UNITS METRIC: km/h、kg.

3.1.2.2. Press ENTER to set engineer mode alphabetic string display while you get

into engineer mode: The preset words are『WELCOME』, Heart Rate window

shows the sort number of word, max 20 characters include symbol and space.

Press FAST or SLOW to choice the sort number of word 1~20, press UP or

SLOW to choice the characters A~Z/0~9/space/ - , press SELECT to add sort

number of word(preset 13 sort number of words, to add sort number while

sort number at last number then press SELECT).

3.1.2.3. Press ENTER to power setting: Dot-matrix shows『POWER ON』, press Fast、

Slow、Up or Down to change to『POWER OFF』. OFF: No any display when pull

out the emergency key.

3.1.2.4. Press ENTER to incline setting: Dot-matrix shows『GS INCLINE OFF』, press

Fast、Slow、Up or Down to change to『GS INCLINE ON』。OFF: Incline return

to lowest position when reset. ON: Incline return to lowest position after

press START.

3.1.2.5. Press ENTER to set AC/DC system: Dot-matrix shows『DC SELECTED』, press

Fast、Slow、Up or Down to change to『AC SELETED』.

3.1.2.6. Press ENTER to set roller size: TIME window shows WHEL SIZE, dot-matrix

shows『ADJUST WHEEL SIZE THEN PRESS ENTER』, press Fast、Slow、Up or

Down to set the roller size, range from 1.0 to 3.5. If treadmill roller size is

70mm, please set 2.78, if roller size is 90mm please set 3.56.

3.1.2.7. Press ENTER to set min speed: TIME window shows MIN SPEED, dot-matrix

shows『ADJUST MIN SPEED THEN PRESS ENTER』, press Fast、Slow、Up or

Down to set the min speed that you want.

3.1.2.8. Press ENTER to set the max speed: TIME window shows MAX SPEED,

dot-matrix shows『ADJUST MAX SPEED THEN PRESS ENTER』, press Fast、

Slow、Up or Down to set the max speed that you want.

3.1.2.9. Press ENTER to set MAX ELEVATION, INCLINE window shows『15』,

dot-matrix shows『ADJUST MAX ELEVATION THEN PRESS START TO


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CALIBRATION』do not to modify this item.

3.1.3. Press START to begin speed calibration.

3.1.3.1. The dot-matrix window shows『SPEED CALIBRATION』when calibrating.

3.1.3.2. CALORIES window shows speed parameter, SPEED shows real speed value,

TIME window shows front roller RPM, speed parameter shall between

340~350 at max speed 20KPH in the normal condition.

3.1.3.3. Calibrating the min speed to fit set min speed first, then calibrating the max

speed. It will return to idle mode after finish the calibration and to erase the

memory data of user program.

3.2. Engineering Mode 2: Used Information Management

3.2.1. To pull out the emergency stop key then press START and SLOW simultaneously and

put the emergency key back, to leave you hand from keys till dot-matrix window

shows WELCOME.

3.2.2. The dot-matrix shows software version information, TIME window shows total used

time 00:00(m:s) ～ 9999(h), DISTANCE window shows total used distance 0.0 ～

999.

3.2.3. You can press FAST → SLOW → FAST → SLOW → SELECT one by one to erase total

used time and distance. Press STOP back to idle mode.

3.3. Engineering Mode 3: Real Speed and Incline Parameter

3.3.1. Press ENTER for 5 seconds when working and buzzer will send out a “beep” sound.

SPEED window shows real speed, INCLINE window shows incline digital data（incline

0~15％= digital data 22~173）.

3.3.2. Back to normal work display by press ENTER for 5 seconds and buzzer will send out

a “beep” sound.


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4. Other Information 4.1. Real Speed Do Not To Fit In With Display Speed


1 To START and operate the speed to the

position where has problem.

2 To measure the running belt speed to

compare to display speed.

Is there really different?

The accuracy is normal if speed tolerance

between ±10% display speed.

3 To execute the engineer mode ONE for

speed calibration and check speed

parameter is normal, if speed parameter

abnormal, please replace the speed sensor.

Refer to:

2.3『Speed Sensor』

3.1『Engineering Mode ONE: Factory

Settings』

4.2. No Any Display On Console(No Power)


1 To check the fuse where near the AC source

power switch is start or not, if the fuse

started please to press draw back for reset

the power. If every is fine after reset power, it

to mean the load is to big, need to do the

maintenance or replace the running belt and

deck.

2 If fuse do not start, please open the motor

cover and check the power supply normally

from interface PCB.

Refer to:


3 If interface PCB is ok after check, please

check the console wire connection.

Refer to:


4 If console wire check is ok, to check the

voltage where from the interface PCB by

multi-meter, if got voltage, please replace the

console PCB.

Gray+ Purple-


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4.3. Abnormal Display On Console


1 Switch ON the power and press START to

quick start, if the motor work normal, just

display abnormal, please replace the console

PCB.

2 If motor can not work and no function by

press any key, please check the power

source from interface PCB.

Refer to:


4.4. Can Not Decrease Speed


1 Open the motor cover and switch ON the

power then press START. Increase speed to

12km/h(or higher speed) and wait it to

stable. Decrease speed by press quick speed

key 10.

2 Check the pilot lamp LED3 where on the

interface PCB after press quick speed key.

Do the LED3 flash after press the quick

speed?

Refer to:


3 If LED3 flash after press quick speed key to

decrease speed, the speed command signal

is no problem, console wire no problem,

maybe the interface PCB or inverter got

some problems, please check.

Refer to:


2.4『Inverter』

4 If LED3 did not flash after press quick speed

key to decrease speed, the console wire or

console got problems, check console wire

first, otherwise, to replace the console PCB

is the final solution.

Refer to:



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4.5. Membrane Key Lose Function


1 Open the console and pull out the membrane

connector from console PCB.

2 To refer to the PIN table of 2.6『Membrane

Key』, to find PINs on console PCB that got

problem while operate and short them.

If no function when short the PINs, please

replace the console PCB.

If normal function when short the PINs,

please replace the membrane key.

For example: SPEED FAST no function, to

short the PIN no.4 & 8 to check the function

without use membrane key.

Documents

Error Signal Check Steps And Solutions