YASKAWA Inverter Manuel d'utilisateur télécharger pdf (Page 142)

Diagnostics & Troubleshooting 6 - 17

Auto-Tuning Faults

Auto-Tuning faults are shown below. When the following faults are detected, the fault is displayed on the Digital Operator and

the motor coasts to a stop. No fault or alarm outputs will occur.

Table 6.4 Auto-Tuning Fault Displays and Processing

Digital Operator

Display

Description Probable Cause Corrective Action

Er - 01

Fault

Motor Data Fault

•There is an error in the data input

for Auto-Tuning.

•There is an error in the relationship

between the motor output and the

motor rated current.

•There is an error between the no-

load current setting and the input

motor rated current (when Auto-

Tuning only line-to-line

resistance is performed for vector

control).

• Check Auto-Tuning input data (T1

parameters).

• Check Drive and motor capacity

for compatibility.

• Check motor rated current and

no-load current (E2-03 and

T1-04).

Er - 02

Minor Fault

Alarm

An alarm is detected during Auto-

Tuning.

• Check Auto-Tuning input data (T1

parameters).

• Check output/motor wiring.

• Check the load.

Er - 03

STOP key

STOP Key Input

The STOP key is pressed during

Auto-Tuning, and the Auto-Tuning is

interrupted.

–

Er - 04

Resistance

Line-to-Line Resistance Fault

Auto-Tuning is not completed within

the specified time.

The Auto-Tuning result is outside the

parameter setting range.

• Check Auto-Tuning input data (T1

parameters).

• Check motor wiring.

• If the motor and the machine are

connected, disconnect the motor

from the machine.

• For Er-08, if the setting of T1-03 is

higher than the Drive’s input

voltage, change the input voltage

setting.

Er - 05

No-Load Current

No-Load Current Fault

Er - 08

Rated Slip

Rated Slip Fault

Er - 09

Accelerate

Acceleration Fault

Detected only for rotational Auto-

Tuning.

The motor did not accelerate in the

specified time (C1-01 + 10 seconds).

• Increase C1-01 (Accel Time 1)

• Increase L7-01 and L7-02

(Forward/Reverse Torque Limits)

if they are low.

• If the motor and load are

connected, disconnect the motor

from the load.

Er - 11

Motor Speed

Motor Speed Fault

Detected only for rotational Auto-

Tuning.

The torque reference exceeded 100%

during acceleration. Detected when

A1-02 = 2 or 3 (vector control).

• Increase C1-01 (Accel Time 1)

• Check the input data [particularly

the number of PG pulses (F1-01)

and the number of motor poles

(E2-04)].

• If the motor and load are

connected, disconnect the motor

from the load.

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YASKAWA Inverter Manuel d'utilisateur Page 142

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