Omron SYSDRIVE 3G3FV User Manual page 347

Maintenance Operations
Fault Display
OL3
Overtorque Det 1
OL4
Overtorque Det 2
OS
Over speed
PGO
PG open
DEV
Speed Deviation
Meaning
There has been a current
greater than the setting in
L6-02 for longer than the
setting in L6-03.
There has been a current
greater than the setting in
L6-05 for longer than the
setting in L6-06.
The speed has been greater
than the setting in F1-08 for
longer than the setting in
F1-09.
The PG is disconnected.
The Inverter is outputting a
frequency, but PG pulses aren't
being input.
The speed deviation has been
greater than the setting in
F1-10 for longer than the
setting in F1-11.
Probable causes and remedies
Make sure that the settings in L6-02 and L6-03
are appropriate.
Check the mechanical system and correct the
cause of the overtorque.
Make sure that the current setting in L6-05 and
time setting in L6-06 are appropriate.
Check the mechanical system and correct the
cause of the overtorque.
Overshooting/Undershooting are occurring.
Adjust the gain again.
The reference speed is too high.
Check the reference circuit and reference gain.
The settings in F1-08 and F1-09 aren't appropriate.
Check the settings in F1-08 and F1-09.
The is a break in the PG wiring.
Fix the broken/disconnected wiring.
The PG is wired incorrectly.
Fix the wiring.
Power isn't being supplied to the PG.
Supply power to the PG properly.
The torque limit is set to 0 through CompoBus/D
communications. (Applies only to flux vector con-
trol.)
Set F9-05 to 0 (torque limit disabled).
The load is too large.
Lighten the load.
The acceleration time and deceleration time are
too short.
Lengthen the acceleration time and decelera-
tion time.
The load is locked.
Check the mechanical system.
The settings in F1-10 and F1-11 aren't appropriate.
Check the settings in F1-10 and F1-11.
The torque limit is set to 0 through CompoBus/D
communications. (Applies only to flux vector con-
trol.)
Set F9-05 to 0 (torque limit disabled).
Chapter 8
8-5