Omron OMNUC R88D-WT15HF User Manual page 433

Troubleshooting
Display Error
Option detection er-
ror*
Missing phase de-
tected.
Motor current error** Occurs at startup
5-16
Status when error
occurs
Occurs when the
Option Unit has
control circuit power
been removed.
supply is turned ON.
Option Unit is defec-
tive.
Servo Driver is de-
fective.
Occurs when servo Main circuit power
is ON. supply is not con-
nected.
Main circuit power
supply phase is mis-
sing, or wire is
burned out.
Servomotor power
(See note.) line is not con-
nected.
Servomotor power
line is wired incor-
rectly or the connec-
tion is defective.
Servomotor power
line is broken or de-
fective, preventing
current from flowing
correctly to the Ser-
vomotor.
Servomotor is de-
fective.
Servo Driver is de-
fective.
Cause of error Countermeasures
Mount the Option Unit
properly.
Initialize the user param-
eters by executing
Fn005, and clear the Op-
tion Unit detection results
by executing Fn014 (if an
Option Unit is not to be
used).
Replace the Option Unit.
Replace the Servo Driver.
Check the main circuit
power supply wiring.
Correct the wiring.
Check the Servomotor
power line and correct
the wiring.
Check the conduction
and resistance value, and
replace the power line if it
is defective.
Replace the Servomotor.
Replace the Servo Driver.
Chapter 5