YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
133
Code
Name
Causes
Possible Solutions
The V/f pattern does not fit the
motor qualities.
•
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]
. Decrease the values set
in
E1-08 [Mid Point A Voltage]
and
E1-10 [Minimum Output Voltage]
.
For motor 2, adjust
E3-04 to E3-10
.
Note:
If the values set in
E1-08
and
E1-10
are too low, the overload tolerance
will decrease at low speeds.
The drive capacity is too small.
Replace the drive with a larger capacity
model.
Overload occurred while
running at low speed.
•
Decrease the load when running at
low speed.
•
Replace the drive with a larger
capacity model.
•
Decrease the value set in
C6-02
[Carrier Frequency Selection]
.
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.
The speed search-related
parameters are set incorrectly.
•
Examine the settings for all speed
search-related parameters.
•
Adjust
b3-03 [Speed Search
Deceleration Time]
.
•
Set
b3-24 = 1 [Speed Search Method
Selection = Speed Estimation]
after
Auto-Tuning.
Phase loss in the input power
supply is causing the output
current to change.
•
Correct errors with the wiring for
main circuit drive input power.
•
Make sure that there is no phase loss,
and repair problems.
Overload occurred during
overexcitation deceleration.
•
Decrease the value set in
n3-13
[OverexcitationBraking (OEB) Gain]
.
•
Decrease the value set in
n3-21 [HSB
Current Suppression Level]
.
oL3
Overtorque Detection
1
A fault occurred on the
machine.
Example: The machine is
locked.
Examine the machine and remove the
cause of the fault.
The parameters are incorrect for
the load.
Adjust
L6-02 [Torque Detection Level 1]
and
L6-03 [Torque Detection Time 1]
settings.