Omron OMNUC W Series User Manual page 373

Troubleshooting
Display
Rotation speed mis-
match (ABS)
Deviation counter
overflow
Motor-load deviation
over level error
Option Unit detec-
tion error
Missing phase de-
tected.
Parameter Unit
transmission error 1
Parameter Unit
transmission error 2 a s
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Error Status when error
occurs
Occurs when the
control circuit power
supply is turned ON. pp y
Servomotor will not
rotate even when
command pulses
are input.
Occurs when rotat-
ing at high speed
Occurs when long
co command pulses a d pu ses
are sent
Occurs during op-
eration
Occurs if an option
has been connected
to the driver
Occurs when servo
is ON.
Occurs when power
supply is turned ON.
Occurs when Pa-
ss o e o rameter Unit is in a e e U
use.
Cause of error
Pn205 (absolute en-
coder rotation limit
setting) changed.
Pn205 (absolute en-
coder rotation limit
setting) changed by
mistake.
Servomotor power
or encoder line is
p
wired incorrectly.
Locked mechanical-
ly
Control panel error
Servomotor power
or encoder line is
miswired.
Gain adjustment is
insufficient.
Acceleration and de-
celeration is too vio-
lent.
Load is too large.
Difference between
internal and external
encoder exceeds
the setting of Pn51A
Option board has
been removed
Main circuit power
supply is not con-
nected.
Main circuit power
supply phase is mis-
sing, or wire is
burned out.
Servo Driver is de-
fective.
Internal element
s misoperation
Internal element is
broken
Chapter 5
Countermeasures
Perform absolute encod-
er rotation limit setting
change (Fn013).
Set Pn205 correctly
Rewire correctly.
Repair if the Servomotor
shaft is locked
Replace the Servo Driver.
Rewire correctly.
Adjust the gain.
Lengthen acceleration
and deceleration time.
Use position command
filter (Pn207.0, Pn204,
and Pn208).
Lighten the load.
Reselect the Servomotor.
Go to Fn014. Press data.
Display shows "0 unit".
Press mode, display
shows "done". Reset the
equipment.
Check the main circuit
power supply wiring.
Replace the Servo Driver.
Reset the alarm, then re-
start the operation.
Replace the Servo Driver.
5-15