CIRCLE FITNESS M6 AC User manual

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 2 of 20
2
TABLE OF CONTENTS
1. Information For Components & System
1.1 System wiring diagram ----- Page 3
1.2 Motor driver ----- Page 4~5
1.3 Console PCB ----- Page 6~7
2. Error Signal Check Steps And Solutions
2.1. Error Message:【SPEED ERROR】----- Page 8
2.2. Error Message:【Err】----- Page 9
3. Other Information
3.1. No Any Display on Console (No Power) ----- Page 10
3.2. Key Lose Function ----- Page 10
3.3. Real Speed Do Not To Fit In With Display Speed ----- Page 11
4. Engineering Mode
4.1. Engineering Mode 1: Basic Settings ----- Page 12
4.2. Engineering Mode 2: Used Information Management ----- Page 12
4.3. Engineering Mode 3: Erase the Custom Settings to Default Value ----- Page 12
4.4 Engineering Mode 4: Real Time Speed & Incline Parameter ----- Page 12
4.5 Engineering Mode 5: Default Age Value Of Quick Start ----- Page 13
4.6 Engineering Mode 6: Incline Test & Settings ----- Page 13
4.7 Engineering Mode 7: Fan Low Output Setting ----- Page 13
5. Program Update
5.1. Install Software from PC Site ----- Page 14
5.2. Programmer Update ----- Page 14
5.3. Product Update ----- Page 15
6. Inverter Parameter & External Control Keypad
6.1. External Control Keypad Usage ----- Page 16~19
6.2. Inverter Parameter ----- Page 20

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 3 of 20
3
1. Information For Components & System
1.1.System Wiring Diagram

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 4 of 20
4
1.2.Motor Driver:
1.2.1. Motor driver connector definition.
Definition of Console Wire-7P Connector
PIN
1
2
3
4
5
6
7
Define
RPM
+5V
Motor EN
Slow
Fast
GND
+12V
Definition of Console Wire-5P Connector
PIN
1
2
3
4
5
Define
+5V
ADC
GND
Down
Up
Definition of Incline VR Connector
PIN
1
2
3
Define
+5V
ADC
GND
Description of pilot lamps:
LED1 (RED): Motor driver output pilot lamp (Red): Lights up normally.
LED1 (Green): System power LED, lights up normally when power on.
TR6: Incline motor up pilot lamp (Green): Lights up while incline motor go up.
TR5: Incline motor down pilot lamp (Yellow): Lights up while incline motor go down.
Definition of Incline Control Connector
PIN
1
2
3
4
5
Define
DOWN
X
UP
X
COM
:PIN 1
Speed Sensor
Console Wire-7P
Incline VR
Console Wire-5P
Incline Control
Power input
External Keypad
LED1 (RED)
TR5
TR6
LED1 (Green)

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 5 of 20
5
1.2.2. Optional device: DB (Dynamic Brake), to keep the speed stability when use in high grade
level with medium or high speed condition.
1.2.2.1. Inverter modification
1.2.2.2. DB Fixation
1.2.2.3. Connection of DB to inverter
Appearance of Dynamic Brake
Short circuit the CON1 where on the inverter.
Fix on the main frame
Screws
110V
system:
DB wire N connects to the
negative pole of bridge rectifier.
DB wire P connect to CON1 on
inverter
220V
system:
DB wire N connects to the
negative pole of bridge rectifier.
DB wire P connect to CON1 on
inverter

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 6 of 20
6
1.3.Console PCB:
Definition of JK1(MAIN / Console wire) Connector
PIN
1
2
3
4
5
6
7
8
9
10
11
12
Define
+5V
ADC
GND
Down
Up
RP
M
+5V
Motor
EN
Slow
Fast
GND
+12V
Definition of J1(ISP / Program Updater) Connector
PIN
1
2
3
Define
+5V
TXD
GND
Definition of J2(KEY) Connector
PIN
1
2
3
4
5
6
7
8
9
10
11
12
Define
X
COM
X
SLOW
FAST
DOWN
UP
PROGRAM
ENTER
STOP
START
X
Definition of J3(Membrane key) Connector
PIN
2
3
4
5
6
7
8
9
1
10
(speed)
8
(speed)
6
(speed)
4
(speed)
6
(Incline)
4
(Incline)
2
(Incline)
8
(Incline)
10
Display
FAN
Definition of J7(OTC) Connector
PIN
1
2
3
4
5
6
Define
VCC
UP
DOWN
FAST
SLOW
GND
J2 (Key board)
JK5
(HP)
JK4
(RF)
JK2
(SAFETY)
JK9
JK8
JK7
J7
JK1
J1
(ISP)
: PIN 1
J3

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 7 of 20
7
Definition of JK2(SAFET) Connector
PIN
1
2
Define
+5V
Control
Definition of JK7/8(FAN) Connector
PIN
1
2
Define
PWM
GND
Definition of JK9(MP3) Connector
PIN
1
2
Define
12V
GND
Definition of JK4(RF) Connector
PIN
1
2
3
Define
VCC
GND
Output
Definition of JK5(HP) Connector
PIN
1
2
3
4
Define
VCC
GND
Output
12V

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 8 of 20
8
2. Error Signal Check Steps And Solutions
2.1.【SPEED ERROR】: Can not receive signal from speed sensor over 15 seconds while workout,
all windows display will off, all output will stop, and show【SPEED ERROR】.
※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.
Determine & Solution:
Show SPEED ERROR
Turn OFF the AC power
and wait 10 seconds then
turn ON the AC power.
Press START
Do the running belt moved?
Speed Feedback system program,
if happen regularly, replace the
speed sensor.
No
Open the motor cover then
turn ON the AC power, press
START to begin and check
the pilot lamp on motor
driver. Did the LED1 lights
up?
Motor driver
damaged, replace
it.
Yes
Console PCB damaged,
replace it.
No
Yes
Does SPEED ERROR shown?
No
System overload,
protector tripped,
need to maintenance
or replace the running
belt and deck.
Yes

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 9 of 20
9
2.2.【Err】: Incline can not reach the right position, incline function can not be use but other
functions 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.
Determine & Solution:
Remark A: Before install a new incline motor or VR, be sure the incline motor or VR in the incline
level 0.
Show Err
Turn off the power and wait for 10
seconds then turn on the power.
Pull out the safety key, press「Stop」
+「Up」to enter the engineer mode,
displays【MANUAL INC XXX】
(XXX=Incline parameter)
Did the incline moved while press
incline up or down key?
No
Yes
Did the UP or DOWN LED on
inverter lights up while press
incline up or down key?
Replace console PCB
No
Check sure face temperature
of incline motor, is it hot?
Yes
Wait for cool down then back
to execute from step A.
If not work after cool down, to
execute from step B.
No
To strip the incline
motor down then check
the incline motor or
incline movement not
jam. If incline motor and
movement check is
good, replace motor
driver.
Yes
Did the incline moved and the incline
parameter change while press incline up
or down key? (The parameter range
from lowest to highest position is
15~195, please check this range value
is adjustable)
Incline motor is good,
press STOP back to idle.
Incline motor damaged;
replace the incline motor or
internal variable resistor (VR).
(Remark A)
No
Yes
A
B

Document: Service Manual
Description: Treadmill
Model: M6 AC
Page: 10 of 20
10
3. Other Information
3.1.No Any Display On Console(No Power)
3.2.Key Lose Function
※System will not allow the incline keys functional, if did not connect incline motor to motor
driver.
Is it a new machine
that just finished
assembly?
To check the console
wire, it shall not be
crush injuries or
breakage. (See photo
as right side)
Yes
Open the motor cover,
check the pilot lamp
LED1(Green), does it lights
up?
Motor driver
damaged, replace
it.
No
No
Open the console cover and
reference to page 6 to
measure the PIN 11 & 12
voltage of upper console wire,
does it have 12V power？
Yes
Replace
console wire.
Replace
console PCB.
Yes
No
Were all keys lose function?
Turn off the power and
wait for 10 seconds then
turn on. Are the keys
become normal?
Yes
Cause by external noise,
need to find out and
check again in the
further.
Open the console and reference to page
6 to short circuit the pins of console
PCB related to abnormal key. Is it work
or not if use external short control
without membrane or switch?
for example: if speed fast key did not
work, short circuit the pin 2&5 of J2, if
console is good, the speed shall be
change.
No
Replace membrane key or
switch PCB.
Yes
Replace console
PCB
No
No
Yes