Omron Q2A Series Technical Manual page 292

7.7 Auto-Tuning Errors
Code Name
Er-17 Reverse Prohibited Error
Code Name
Er-18 Back EMF Error
Code Name
Er-19 PM Inductance Error
Code Name
Er-20 Stator Resistance Error
Code Name
Er-21 Z Pulse Correction Error
Code Name
Er-25 HighFreq Inject Param Tuning Err
292
Causes
b1-04 = 1 [Reverse Operation Selection = Reverse
disabled] has been set.
Note:
You cannot do Inertia Tuning if the drive cannot
rotate the motor in reverse.
Causes
The result of the induced voltage tuning was not in
the applicable range.
Causes
The Auto-Tuning results of the PM motor
inductance were not in the applicable range.
Causes
The Auto-Tuning results of the PM Motor Stator
Resistance were not in the applicable range.
Causes
The motor is wired incorrectly.
The encoder is wired incorrectly.
Auto-Tuning was performed when the motor was
coasting.
The setting for the direction of the encoder motor
rotation is incorrect.
The number of encoder pulses is incorrect.
The encoder is damaged.
Causes
The motor data is incorrect.
Possible Solutions
1. Enable reverse in the target machine.
2. Set b1-04 = 0 [Reverse enabled].
3. Do Inertia Tuning again.
Possible Solutions
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Possible Solutions
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Possible Solutions
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Possible Solutions
1. Repair motor and encoder wiring errors.
2. Do Z Pulse Offset Tuning again.
1. Make sure that the motor has stopped completely.
2. Do Z Pulse Offset Tuning again.
1. Set the direction of motor rotation of the encoder in F1-05
[Enc1 Rotat Selection] correctly.
2. Do Z Pulse Offset Tuning again.
1. Set the number of encoder pulses in F1-01 [Enc1 Pulse
Count (PPR)] correctly.
2. Do Z Pulse Offset Tuning again.
• Examine the signal output from the encoder.
• Replace the encoder.
Possible Solutions
Do Stationary Auto-Tuning again.
Note:
If the drive detects Er-25 after doing Stationary Auto-Tuning,
the motor may not be able to use high frequency injection
control. For details, contact the manufacturer or your nearest
sales representative.
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual