Errors During Autotuning - YASKAWA FSDrive-MV1S Instructions Manual

Errors During Autotuning

The errors that can occur during autotuning are given in the following table. If an error is detected, the motor
will coast to a stop and an error code will be displayed on the Digital Operator. The error contact output and
alarm output will not function.
Display
ER-01
Data Invalid
ER-02
Accelerate
ER-03
PG Direction
ER-04
Motor Speed
ER-05
Resistance
ER-06
No-Load Current
ER-07
Motor core satura-
tion 1
ER-08
Motor core satura-
tion 2
ER-09
Rated FLA Alm
ER-10
STOP key
ER-11
I-det. Circuit
ER-12
Base Block
-10
7
Table 7.4 Errors During Autotuning
Meaning
There is an error in the relationship
between the rated frequency, the rated
Motor data error
number of motor rotation, and the num-
ber of motor pole.
Acceleration error
• Torque limits function is operating.
The motor did not
• Acceleration time is too long.
accelerate in the spec-
• The load is connected to the motor.
ified time.
Motor Direction
Error
Speed reference and There is a faulty connection between the
speed feedback indi- Inverter, PG (A-phase and B-phase), and
cations differ when motor (U-phase, V-phase, and W-phase).
the torque command
exceeds 100%.
Motor speed error
Torque reference • The motor power cable is discon-
value has exceeded nected.
100% for 3 seconds • The load is connected to the motor.
during autotuning.
Line-to-line resis-
tance error
• Autotuning was not completed in the
No-load current error
specified time.
• The setting value of the motor rated
Motor core satura-
current is wrong.
tion error 1
• The motor power cable is discon-
nected.
Motor core satura-
tion error 2
• Autotuning was not completed in the
Rated current setting
specified time.
alarm
• The load is connected to the motor.
The STOP Key was pressed to cancel
STOP key input
autotuning.
Current detection
error
The current flow • The setting value of the motor rated
exceeded the motor current is wrong.
rated current. • There is an error in the current detec-
The detected current tor.
sign was the opposite
of what it should be.
The base block command was input
Base block stop
from the PLC to cancel autotuning.
Probable causes Corrective Actions
Correct the data as follows: number of
motor rotation < 120 × rated frequency/
number of motor pole.
• Check and correct the setting values of
L7-01 to 04 (torque limits).
• Increase the setting value of the C1-01
(Acceleration Time).
• Disconnect the load from the motor.
• Check the PG wiring.
• Check the motor wiring.
• Check the PG rotation direction and
setting value of H7-05 (PG rotation
direction).
• Check the wiring and correct the dis-
connection.
• Disconnect the load from the motor.
• Check and correct the input data.
• Check the wiring and correct the dis-
connection.
Disconnect the load from the motor.
−
• Check and correct the input data.
• Check the current detection circuit,
motor wiring, current detector, and
installation methods.
Clear the base block command from the
PLC.