Motor Control Board (M.c.b.) Operational Codes - Bodyguard T-30 User Manual

8.4

MOTOR CONTROL BOARD (M.C.B.) OPERATIONAL CODES

The Motor Control Board (M.C.B.) is the main electronic board found under the motor cover. It
includes a red L.E.D. that displays an operational code indicating what state the M.C.B. is in. Use the
following table to identify each of the operational codes and assist with problem solving if necessary.
SYMBOL
Relay Position Abnormal
Usually accompanied by an Error
Normal Operation when Relay is
closed and treadmill belt moving.
Default Position when Relay
on M.C.B. is open and waiting
for instruction such as when the
treadmill is at the Home Screen.
Speed Sensor Cable Error
ROM/PC Self Check error
Possibly Exceeding Range
Note: After changing an M.C.B.
or an Elevation Motor an
Elevation Calibration must be
Elevation Motor has a problem
DESCRIPTION
54 on the Display
(Error 53 appears on the
Display)
Elevation Motor Error
completed.
moving
TREADMILLS – USER MANUAL
ACTIONS
Change Motor Control Board
Don't do anything!
"B is Beautiful"
Some errors cause the Relay to open, which then
causes 'C' to appear on the M.C.B.. If the unit is not
operating and there is a 'C' on the M.C.B. then there
should be an error on the display if it has power.
Check that the speed sensor cable is
connected to the M.C.B. on the connector
labeled "SPEED". If not, attach it (Error C
appears on the L.E.D.) and reset the treadmill.
Check the speed sensor cable is not pinched.
* If the Speed Sensor light flashes when you
turn the motor but Error 53 still immediately
appears when the treadmill is turned on it could
be the R64 resistor on the M.C.B.
EPROM is correctly installed but it self-tested the
code and saw an error.
Most likely solution is a new EPROM.
Check the wire from the Elevation Motor is correctly
plugged in at the connector labeled "INCLINE".
If it is not plugged in, the walking belt will run as
normal but when the user tries to increase or
decrease incline the value will change on the screen
but the elevation will not move.
If the wire is plugged in then Complete an Elevation
Calibration to see if the problem is solved.
If that doesn't solve the problem, check the
resistance in OHMS (between the black and white
wires (not red) at the elevation connection) at the
maximum elevation (should be 450 Ohms) and
minimum elevation (850 Ohms)
Check Elevation Motor power wires are connected
correctly on the M.C.B.
If OK, then change the Elevation Motor.
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