128
YASKAWA
TOEPC71061752B GA500 Drive Installation & Primary Operation
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.
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.
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.
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.