Drive Unit Diagnosis Mode Display Method - Yamaha X94 Series Service Manual

Diagnosis function (LED type display unit)
Fast flashing
List of Drive Unit Diagnosis Mode Display Methods
Diagnosis
Inspection
mode
items
display
1) Torque
sensor
reference
voltage
2) Motor
current
3) Error display
4) Display unit
function check
Press
operating Diagnosis data display
button
Values are displayed from 0.0 to 5.0 (V)
Motor output current in "HIGH" mode is
displayed as 00 to "FL (= FULL)"
(= % output).
There is no display when there are no
errors.
When there is an error, either "E2" (motor)
or "E4" (controller) are displayed.
All segments and
lamps are
illuminated.
(Segments and
lamps that are
not illuminated
indicate a
malfunction.)
2-22

Drive Unit Diagnosis Mode Display Method

You can check the status of or malfunctions in
the Drive Unit.
1. Go into Drive Unit diagnosis mode.
See "Operating Procedures to Diagnosis
Mode."
Confirm that the "STD" of the assist mode
lamps is flashing fast.
After the diagnosis mode indicator of the
display unit has displayed "1" for up to 10
seconds, you can check the torque sensor
reference voltage, motor current, error dis-
plays ("E2", "E4"), and the display unit func-
tion check.
or
– +
ELEC
Press operating
button
To 2) Motor current
To 3) Error display
To 4) Display unit
function check
Power goes off