Yamaha X94 Series Service Manual page 47

Diagnosis function (LCD type display unit)
Fast flashing
List of Drive Unit Diagnosis Mode Display Methods
Diagno-
Inspection
sis 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 0 to 100 (= % 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 are
illuminated
(segments that are
not illuminated
indicate a
malfunction.)
2-33
Drive Unit Diagnosis Mode Display Method
You can check the status of or malfunctions in
the Drive Unit.
1. Go into Drive Unit in diagnosis mode.
See "Operating Procedures to Diagnosis
Mode."
Confirm that the assist mode display is
flashing "STD" fast (0.2 seconds).
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