Omron Q2A Series Technical Manual

7.7 Auto-Tuning Errors
290 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
Code Name Causes Possible Solutions
The combination of the motor rated current that was
entered during Auto-Tuning and E2-03 [Mot No-
Load Current] do not match.
1. Examine the motor rated current and the no-load current.
2. Set E2-03 correctly.
3. 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 input motor nameplate data is correct.
• Do Auto-Tuning again and correctly set the motor nameplate
data.
There is a defective motor cable or cable
connection.
Examine and repair motor wiring.
The load is too heavy. • 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 and
Auto-Tuning was interrupted.
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.
Code Name Causes Possible Solutions
Er-05 No-Load Current 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.
• 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.
Rotational Auto-Tuning was done with a load that
was more than 30% of the rating connected to the
motor.
• Disconnect the machine from the motor and do Rotational
Auto-Tuning again.
• If you cannot uncouple the motor and load, make sure that the
load is less than 30% of the motor rating. If a mechanical
brake is installed in the motor, release the brake during
Rotational Auto-Tuning.
Code Name Causes Possible Solutions
Er-08 Rated Slip Error
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.
Auto-Tuning did not complete in a pre-set length of
time.
The Auto-Tuning results were not in the applicable
parameter setting range.
• Examine and repair the motor wiring.
• If the motor and machine are connected during Rotational
Auto-Tuning, decouple the motor from the machinery.
Rotational Auto-Tuning was done with a load that
was more than 30% of the rating connected to the
motor.
• Disconnect the machine from the motor and do Rotational
Auto-Tuning again.
• If you cannot uncouple the motor and load, make sure that the
load is less than 30% of the motor rating. If a mechanical
brake is installed in the motor, release the brake during
Rotational Auto-Tuning.

Omron Q2A Series Specifications

General

Brand	Omron
Model	Q2A Series
Category	Controller
Language	English