Omron Q2A Series Technical Manual

7.7 Auto-Tuning Errors
292 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
Code Name Causes Possible Solutions
Er-17 Reverse Prohibited Error
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.
1. Enable reverse in the target machine.
2. Set b1-04 = 0 [Reverse enabled].
3. Do Inertia Tuning again.
Code Name Causes Possible Solutions
Er-18 Back EMF Error
The result of the induced voltage tuning was not in
the applicable range.
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Code Name Causes Possible Solutions
Er-19 PM Inductance Error
The Auto-Tuning results of the PM motor
inductance were not in the applicable range.
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Code Name Causes Possible Solutions
Er-20 Stator Resistance Error
The Auto-Tuning results of the PM Motor Stator
Resistance were not in the applicable range.
1. Make sure that the input motor nameplate data is correct.
2. Do Auto-Tuning again and correctly set the motor nameplate
data.
Code Name Causes Possible Solutions
Er-21 Z Pulse Correction Error
The motor is wired incorrectly.
The encoder is wired incorrectly.
1. Repair motor and encoder wiring errors.
2. Do Z Pulse Offset Tuning again.
Auto-Tuning was performed when the motor was
coasting.
1. Make sure that the motor has stopped completely.
2. Do Z Pulse Offset Tuning again.
The setting for the direction of the encoder motor
rotation is incorrect.
1. Set the direction of motor rotation of the encoder in F1-05
[Enc1 Rotat Selection] correctly.
2. Do Z Pulse Offset Tuning again.
The number of encoder pulses is incorrect. 1. Set the number of encoder pulses in F1-01 [Enc1 Pulse
Count (PPR)] correctly.
2. Do Z Pulse Offset Tuning again.
The encoder is damaged. • Examine the signal output from the encoder.
• Replace the encoder.
Code Name Causes Possible Solutions
Er-25 HighFreq Inject Param Tuning Err
The motor data is incorrect. 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.

Omron Q2A Series Specifications

General

Brand	Omron
Model	Q2A Series
Category	Controller
Language	English