84
YASKAWA
TOEPC71061782C GA800 Drive Installation & Primary Operation
Code
Name
Causes
Possible Solutions
The drive incorrectly detected the motor magnetic
pole position.
•
Set
b3-01 = 1 [Speed Search at Start Selection = Enabled]
.
•
If the value for
U6-57 [PolePolarityDeterVal]
is lower than 819,
increase the value set in
n8-84 [Polarity Detection Current]
.
Consult the motor manufacturer for information about maximum
setting values.
The setting of
n8-84 [Polarity Detection Current]
is
too low.
Increase the n8-84 setting from the default. Consult the motor
manufacturer for information about maximum setting values.
Incorrect values set in
L8-93 [Low Speed Pull-out
DetectionTime]
,
L8-94 [Low Speed Pull-out Detect
Level]
, and
L8-95 [Low Speed Pull-out Amount]
.
Increase the values set in
L8-93 to L8-95.
The drive incorrectly detected the motor magnetic
pole position.
If you are using an IPM motor, do High Frequency Injection Auto-
Tuning.
nSE
Node Setup Error
The
H1-xx = 47 [Node Setup (CANopen)]
terminal
was activated during run.
Stop the drive when the Node Setup function is in use.
oC
Overcurrent
The load is too heavy.
•
Measure the current flowing into the motor.
•
Replace the drive with a larger capacity model if the current
value is more than the drive rated current.
•
Decrease the load or replace with a larger drive to prevent
sudden changes in the current level.
Overheating caused damage to the motor or the motor
insulation is not satisfactory.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
The motor main circuit cable is contacting ground to
make a short circuit.
•
Examine the motor main circuit cable for damage, and repair
short circuits.
•
Measure the resistance between the motor main circuit cable and
the ground terminal. If there is electrical conduction, replace the
cable.
A short circuit or ground fault on the drive output
side caused damage to the output transistor of the
drive.
•
Make sure that there is not a short circuit in terminal - and
terminals U/T1, V/T2, and W/T3.
•
If there is a short circuit, contact Yaskawa or your nearest sales
representative.
The acceleration time is too short.
•
Calculate the torque necessary during acceleration related to the
load inertia and the specified acceleration time.
•
Increase the values set in
C1-01, C1-03, C1-05, or C1-07
[Acceleration Times]
to get the necessary torque.
•
Increase the values set in
C2-01 to C2-04 [S-Curve
Characteristics]
to get the necessary torque.
•
Replace the drive with a larger capacity model.
The drive is trying to operate a specialized motor or a
motor that is larger than the maximum applicable
motor output of the drive.
•
Examine the motor nameplate, the motor, and the drive to make
sure that the drive rated current is larger than the motor rated
current.
•
Replace the drive with a larger capacity model.
A magnetic contactor was switched at the output.
Set the operation sequence to not turn ON or OFF the magnetic
contactor while the drive is outputting voltage.
The V/f pattern settings are incorrect.
•
Examine the ratios between the V/f pattern frequency and
voltage. Decrease the voltage if it is too high compared to the
frequency.
•
Adjust
E1-04 to E1-10 [V/f Pattern Parameters]
. For motor 2,
adjust
E3-04 to E3-10
.
The torque compensation gain is too large.
Decrease the value set in
C4-01 [Torque Compensation Gain]
to
make sure that the motor does not stall.
Electrical interference caused a problem.
Examine the control circuit lines, main circuit lines, and ground
wiring, and decrease the effects of electrical interference.
The gain during overexcitation operation is too large.
•
Find the time when the fault occurs.
•
If the fault occurs at the same time as overexcitation operation,
decrease the value set in
n3-13 [OverexcitationBraking (OEB)
Gain]
and consider the motor flux saturation.
The drive received a Run command while the motor
was coasting.
•
Examine the sequence and input the Run command after the
motor fully stops.
•
Set
b3-01 = 1 [Speed Search at Start Selection = Enabled]
or set
H1-xx = 61, 62 [Speed Search from Fmax or Fref]
to input speed
search commands from the MFDI terminals.
In PM Control Methods, the setting of the motor code
is incorrect.
•
Enter the correct motor code to
E5-01 [PM Motor Code
Selection]
as specified by the PM motor.
•
For specialized motors, refer to the motor test report and set
E5-
xx [PM Motor Settings]
correctly.
