YASKAWA A1000 Technical Manual

6.7 Auto-Tuning Fault Detection
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 361
Troubleshooting
6
Digital Operator Display Error Name
Er-01 Motor Data Error
Cause Possible Solutions
Motor data or data entered during Auto-Tuning was
i
ncorrect.
• Check that the motor data entered to T1 parameters matches motor nameplate input before Auto-Tuning.
• Start Auto-Tuning over again and enter the correct information.
Motor output power and motor-rated current settings
(
T1-02 and T1-04) do not match.
• Check the drive and motor capacities.
• Correct the settings of parameters T1-02 and T1-04.
Motor rated current and detected no-load current are
not
consistent with another.
• Check the motor rated current and no-load current.
• Correct the settings of parameters T1-04 and E2-03.
Base frequency and motor rated speed (T1-05 and
T1-07) do
not match.
• Set T1-05 and T1-07 to the correct value.
• Check if the correct pole number was entered to T1-06.
Digital Operator Display Error Name
Er-02 Minor Fault
Cause Possible Solutions
An alarm was triggered during Auto-Tuning. Exit the Auto-Tuning menu, check the alarm code, remove the alarm cause, and repeat Auto-Tuning.
Digital Operator Display Error Name
Er-03 STOP Button Input
Cause Possible Solutions
Auto-Tuning canceled by pressing STOP button. Auto-Tuning did not complete properly and will have to be performed again.
Digital Operator Display Error Name
Er-04 Line-to-Line Resistance Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
incorrect.
• Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
Results from Auto-Tuning are outside the parameter
setting range or the tuning process took too long.
Check and correct faulty motor wiring.
Motor cable or cable connection faulty.
Digital Operator Display Error Name
Er-05 No-Load Current Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
i
ncorrect.
• Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
Results from Auto-Tuning are outside the parameter
setti
ng range or the tuning process took too long.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
The load during Rotational Auto-tuning was too
high
.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and
load cannot be uncoupled make sure the load is lower
than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Digital Operator Display Error Name
Er-08 Rated Slip Error
Cause Possible Solutions
Motor data entered during Auto-Tuning was
i
ncorrect.
• Make sure the data entered to the T1 parameters match the information written on the motor nameplate.
• Restart Auto-Tuning and enter the correct information.
Drive-calculated values out
side parameter setting
range or the tuning process took too long.
• Check and correct faulty motor wiring.
• Perform Rotational Auto-Tuning.
The load during rotational Auto-tuning was too high.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and
load cannot be uncoupled make sure the load is lower
than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Digital Operator Display Error Name
Er-09 Acceleration Error
Cause Possible Solutions
The motor did not accelerate for the specified
a
cceleration time.
• Increase the acceleration time (C1-01).
• Check if it is possible to disconnect the machine from the motor.
Torque limit when motoring is too low (L7-01 and
L7-02).
• Check the settings of parameters L7-01 and L7-02.
• Increase the setting.
The load during Rotational Auto-Tuning was too
high
.
• Disconnect the motor from machine and restart Auto-Tuning. If motor and
load cannot be uncoupled make sure the load is lower
than 30%.
• If a mechanical brake is installed, make sure it is fully lifted during tuning.
Digital Operator Display Error Name
Er-10 Motor Direction Error
Cause Possible Solutions
The encoder signal lines are not properly connected
to the drive.
Check and correct wiring to the PG encoder.
Motor and PG direction are opposite.
Check the motor speed monitor U1-05 while turning the motor manually in forward direction. If the sign displayed is negative,
change the setting of parameter F1-05.
The load pulled the motor in the opposite direction
of the speed reference and the torque exceeded
100%.
Uncouple the motor from the load and repeat Auto-Tuning.

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20