YASKAWA GA800 Series, Technical Reference

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7.7 Auto-Tuning Errors
354 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
Code Name Causes Possible Solutions
End8 HFI Alarm
• Inductance saliency ratio ( E5-07 / E5-06 ) is too
small.
• The drive cannot find the n8-36 [HFI Frequency
Level for L Tuning] value.
• Set the correct value on the motor nameplate to E5-xx [PM
Motor Settings] or do rotational/stationary Auto-Tuning.
• When it is necessary to set n8-35 = 1 [Initial Pole Detection
Method = High Frequency Injection] or n8-57 = 1 [HFI Overlap
Selection = Enabled] , make sure that there is no unusual noise in
the low speed range (10% or less) and that the motor does not
rotate in reverse at start.
Note:
If the drive detects End8 , it will automatically set n8-35 =0
[Pull-in] and n8-57 = 0 [Disabled] . Do not change the settings
unless necessary.
Code Name Causes Possible Solutions
End9 Initial Pole Detection Alarm
The drive cannot calculate the correct value for n8-84
[Polarity Detection Current] during High Frequency
Injection Tuning.
When n8-35 = 1 [Initial Pole Detection Method = High Frequency
Injection] or n8-57 = 1 [HFI Overlap Selection = Enabled] , make
sure that the motor does not rotate in reverse at start.
Note:
If the drive detects End9 , it will automatically set n8-35 =0
[Pull-in] and n8-57 = 0 [Disabled] . Do not change the settings
unless necessary.
Code Name Causes Possible Solutions
Er-01 Motor Data Error
The motor nameplate data entered during Auto-
Tuning is incorrect.
•
Make sure that the motor nameplate data is correct.
•
Do Auto-Tuning again and correctly set the motor nameplate
data.
The combination of the motor rated power and motor
rated current do not match. • Examine the combination of drive capacity and motor output.
• Do Auto-Tuning again, and correctly set the motor rated power
and motor rated current.
The combination of the motor rated current that was
entered during Auto-Tuning and
E2-03 [Motor No-
Load Current] do not match.
• Examine the motor rated current and the no-load current.
• Set E2-03 correctly.
• Do Auto-Tuning again, and correctly set the motor rated current.
The combination of the setting values of Motor Base
Frequency and Motor Base Speed do not match. Do Auto-Tuning again, and correctly set the Motor Base Frequency
and Motor Base Speed.
Code Name Causes Possible Solutions
Er-02 Drive in an Alarm State The motor nameplate data entered during Auto-
Tuning is incorrect.
•
Make sure that the motor nameplate data entered in Auto-Tuning
is correct.
• Do Auto-Tuning again and correctly set the motor nameplate
data.
You did Auto-Tuning while the drive had a minor
fault or alarm. Clear the minor fault or alarm and do Auto-Tuning again.
There is a defective motor cable or cable connection. Examine and repair motor wiring.
The load is too large.
•
Decrease the load.
•
Examine the machine area to see if, for example, the motor shaft
is locked.
The drive detected a minor fault during Auto-Tuning. 1. Stop Auto-Tuning.
2. Examine the minor fault code and remove the cause of the
problem.
3. Do Auto-Tuning again.
Code Name Causes Possible Solutions
Er-03 STOP Button was Pressed
During Auto-Tuning, was pushed.
Auto-Tuning did not complete correctly. Do Auto-Tuning again.
Code Name Causes Possible Solutions
Er-04 Line-to-Line Resistance Error
The Auto-Tuning results were not in the applicable
parameter setting range.
Auto-Tuning did not complete in a pre-set length of
time.
There is a defective motor cable or cable connection.
• Examine and repair motor wiring.
• Disconnect the machine from the motor and do Rotational Auto-
Tuning again.
The motor nameplate data entered during Auto-
Tuning is incorrect. • Make sure that the input motor nameplate data is correct.
• Do Auto-Tuning again and correctly set the motor nameplate
data.