YASKAWA Varispeed f7

7-10
(blink-
ing)
Overtorque 2
There has been a current greater than
the setting in L6-05 for longer than the
setting in L6-06.
-
• 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.
(blink-
ing)
Undertorque 1
There has been a current less than the
setting in L6-02 for longer than the
setting in L6-03.
-
• Make sure that the settings in L6-
02 and L6-03 are appropriate.
• Check the mechanical system and
correct the cause of the overtorque.
(blink-
ing)
Undertorque 2
There has been a current less than the
setting in L6-05 for longer than the
setting in L6-06.
-
• 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.
(blink-
ing)
Overspeed
The speed has been greater than the
setting in F1-08 for longer than the
setting in F1-09.
Overshooting/undershooting are
occurring.
Adjust the gain again.
The reference speed is too high.
Check the reference circuit and refer-
ence gain.
The settings in F1-08 and F1-09 aren't
appropriate.
Check the settings in F1-08 and F1-
09.
(blink-
ing)
The PG is Disconnected
The Inverter is outputting a frequency,
but PG pulses aren't being input.
There 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.
(blink-
ing)
Excessive Speed Deviation
The speed deviation has been greater
than the setting in F1-10 for longer
than the setting in F1-11.
The load is too large. Reduce the load.
The acceleration time and decelera-
tion time are too short.
Lengthen the acceleration time and
deceleration 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.
(blink-
ing)
External Fault Detected for Com-
munications Board Other Than SI-
K2
Continuing operation was specified
for EF0 (F6-03 = 3)and an external
fault was input from the option board.
-
Remove the cause of the external
fault.
Table 7.2 Alarm Displays and Processing (Continued)
Display Meaning Probable causes Corrective Actions