Service manual

Troubleshooting Procedures
Console Error Codes
1. “rdir”: This error code means elevation direction is
reversed. Refer to elevation problems section.
2. “Rg_S”: This error means the target speed cannot
be maintained. Refer to Speed Errors section.
3. “St_E”: This error code means an elevation stall
happpened (elevation is commanded to move but
nothing happens). Refer to Elevation Problems
section.
4. “LS_E”: This error means that an elevation range
error (elevation position is out of range). Refer to
Elevation Problems section.
5. “LS”: This error message means a speed stall (belt
is commanded to move but no feedback from the
speed sensor). Refer to Speed Errors section.
6. “OS”: This error message means an over speed or
runaway error (speed is over the maximum). Refer
to Speed Errors section.
7. “Lub bELt”: The lubricate belt message shows
every 250 miles of belt travel. The message “Lub
bELt” shows on the left and right displays upon
waking up from sleep mode. This message remains
there until any key is pressed. Once any key is
pressed, the weight menu is activated.
SPEED ERRORS
Note: Speed sensor adjustment and/or calibration usually
fixes any speed errors.
a. Check distance of speed sensor to magnet on roller
pulley wheel. It should be 1/8”.
b. With the power to the unit on, check to see if speed
sensor light is flashing each time magnet passes
speed sensor by moving walking belt with your hand
or foot.
c. Check speed sensor wire from speed sensor to
lower board for breakes or cuts. Replace speed
sensor if light still does not respond.
d. Calibrate unit if speed sensor works. If calibration
fails, check the maximum PWM output during the
calibration. If it does not achieve between 170 and
200, replace the lower control board. Also check
the voltage output on the A1 and A2 terminals. You
should briefly get a reading of 15 or more DC volts
when pressing START as if engaging the unit for belt
movement.
ENGINEERING MODE
To enter Engineering Mode: Press and hold down the
enter and power keys until “CAL” shows in the upper right
window. The Display must be in the “sleep” screen mode in
order for this to work.
ROLLER DIAMETER
1. Enter engineering mode.
2. Press start once. Max speed and units shows
(“E”= ENGLISH, “n”= METRIC).
3. Press the enter key once. After a slight delay, a
beep sounds and “CAL” shows in the upper right
window.
4. Use the up/down keys to scroll until “roLL” shows
in the upper right window.
The belt will start moving.
5. Press the start key. The roller diameter shows in
the upper left display, actual speed in the upper
right display and current PWM show in the lower
right display.
6. Adjust the roller diameter until the speed in the
Display matches the actual speed of the belt.
7. Press enter to save, or power to exit without
saving.
AUTO CALIBRATION
1. Enter engineering mode.
2. Press start once. Max speed and units shows
(“E”= ENGLISH, “n”= METRIC).
3. Press the enter key once. After a slight delay a
beep sounds and “CAL” appears in the upper right
window.
4. Press the start key. The system enters the auto
calibration mode. When auto calibration is
complete, the system shows the results.
5. Press power to exit the Auto Calibration mode.
MANUAL CALIBRATION
1. Enter engineering mode.
2. Press start once. Max speed and units shows
(“E”= ENGLISH, “n”= METRIC).
Service Manual
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