Omron SYSDRIVE RV Series User Manual page 426

Display
Overspeed
The speed has been greater than the
Overspeed
setting in F1-08 for longer than the
Det
setting in F1-09.
PG Disconnection Detected
PG pulses were input when the
Inverter was outputting a frequency
PG Open
(soft start output ≥ E1-09).
Excessive Speed Deviation
The speed deviation has been greater
Speed
than the setting in F1-10 for longer
Deviation
than the setting in F1-11.
Control Fault
The torque limit was reached continu-
ously for 3 seconds or longer during a
Out of
deceleration stop during open-loop
Control
vector control.
PID Feedback Reference Lost
A PID feedback reference loss was
detected (b5-12 = 2) and the PID feed-
back input was less than b5-13 (PID
Feedback
feedback loss detection level) for
Loss
longer than the time set in b5-14 (PID
feedback loss detection time).
External Fault input from Commu-
Opt Exter-
nications Option Board
nal Flt
-6
7
Table 7.1 Fault Displays and Processing (Continued)
Meaning
Overshooting/Undershooting are
occurring.
The reference speed is too high.
The settings in F1-08 and F1-09 aren't
appropriate.
There is a break in the PG wiring.
The PG is wired incorrectly.
Power isn't being supplied to the PG.
Brake is applied to the motor.
The load is too heavy.
The acceleration time and deceleration
time are too short.
The load is locked.
The settings in F1-10 and F1-11 aren't
appropriate.
Brake is applied to the motor.
The settings for torque limit aren't
appropriate.
The settings of motor parameter aren't
appropriate.
The settings in b5-13 and b5-14 aren't
appropriate.
The wiring of the PID feedback circuit
is incorrect.
Probable Causes
Adjust the gain again.
Check the reference circuit and
reference gain.
Check the settings in F1-08 and
F1-09.
Fix the broken/disconnected wir-
ing.
Fix the wiring.
Supply power to the PG properly.
Check for open circuit when using
brake (motor).
Reduce the load.
Lengthen the acceleration time
and deceleration time.
Check the mechanical system.
Check the settings in F1-10 and
F1-11.
Check for open circuit when using
brake (motor).
Check the settings for torque limit.
• Check the motor parameters.
• Perform autotuning.
Check the settings in b5-13 and
b5-14.
Fix the wiring.
Check the Communications
- Option Board and communica-
tions signals.
Corrective Actions