IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 141
6.1.4 Fault Display and Corrective Actions at Auto-Tuning
The following are fault displays and corrective actions at auto-tuning. If any of the following faults are found, the
keypad displays that fault’s contents; the motor coasts to stop if it is under operation. Fault contact output or minor
fault contact output does not operate.
Fault Display
Fault or Indicator Name/Description
Corrective Action
Er-01
Motor Data
Motor Data Fault
. Motor data was entered
incorrectly for auto-tuning. Relationship between
motor HP and motor rated current fault. Input
motor rated current and motor no-load current
fault don’t match.
•
Check the T1 parameters.
•
Check VFD and motor capacity
•
Check motor rated current and no-load current.
Er-02
Minor Fault
Alarm
. The minor fault is detected during auto-
tuning.
•
Check the T1 parameters.
•
Check wirings
•
Disconnect motor from load.
Er-03
STOP Key
STOP Key Input
. The stop key is pressed during
auto-tuning.
Er-04
Resistance
Line to Line Resistance Fault
. Auto-tuning is
not completed within the expected time. The
auto-tuning is outside the parameter setting.
•
Check the T1 parameters.
•
Check motor wiring.
•
Disconnect motor from load.
Er-05
No-Load Current
No-load Current Fault.
Auto-tuning is not
completed within the expected time. The auto-
tuning is outside the parameter setting.
Er-08
Rated Slip
Rated Slip Fault.
Auto-tuning is not completed
within the expected time. The auto-tuning is
outside the parameter setting.
Er-09
Accelerate
Acceleration Fault (rotating auto-tuning only)
.
The motor did not accelerate at the expected
time.
•
Increase B05.01 (acceleration time).
•
If C07.01 and C07.02 (torque limit value) are
decreased, increase values.
•
Disconnect motor from load.
Er-11
Motor Speed
Motor Speed Fault (rotating auto-tuning
only).
The motor speed was over 100% at auto-tuning
(vector control without PG only).
•
Increase B05.01 (acceleration time).
•
Disconnect motor from load.
Er-12
Current Detection
Current Detection Fault.
Current exceeded the
motor rated current.
•
Release brake.
•
Check for open motor lead.
End 1
V/f Oversetting
Excess V/f setting * (rotating auto-tuning
only).
The torque reference exceeded 20% and
no load current exceeded 80%.
•
Check the T1 parameters.
•
Disconnect the motor from the load.
End 2
Saturation
Motor Iron Core Saturation Coefficient Fault
(rotating auto-tuning only).
Since the motor
iron core saturation coefficient could not be auto-
tuned within the set time, tentative value is set in
the iron core saturation coefficient
•
Check the T1 parameters.
•
Check motor wiring.
•
Disconnect the motor from the load
End 3
Rated FLA Alm
Rated Current Set Alarm
. Motor current during
tuning was greater than the set value.
•
Check E02.01.
•
Check T01.04.
NOTE:
* Excessive V/f set value, motor iron core saturation coefficient fault, and rated current set alarm are all displayed after
the auto tuning is completed.
Summary of Contents for IMPULSE G+ Mini
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Page 18: ...IMPULSE G Mini Technical Manual November 2020 Page 18 Figure 2 4 Diagram C...
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