Toshiba H9 User Manual

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H9 ASD Installation and Operation Manual

Autotune Error

• Autotune readings that are significantly inconsistent with the configuration 

information.

• A non-3-phase motor is being used.

• Incorrect settings at 

 or 

.

• Using a motor that has a significantly smaller rating than the ASD.

• ASD output cabling is too small, too long, or is being housed in a cable tray 

with other cables that are producing an interfering EMF.

• Motor is running during the Autotune function.

•

 adjustment required (Motor temperature is too high).

•

 adjustment required (Motor Constant 1 improperly set).

•

 adjustment required (Motor Constant 3 improperly set).

• Autotune setting 

 is set to Auto Calculation and there is a problem with 

the Motor Constant readings.

Typeform Error

• Firmware information (typeform) loaded into the Gate Driver board is 

inconsistent with the device in which the firmware is being used.

• The Gate Driver board has been replaced.

• The Gate Driver board is defective.

No Errors

• No active faults.

Overcurrent During 
Acceleration

• Improper V/f setting.

• Restart from a momentary power outage.

• The ASD is starting into a rotating motor.

• ASD/Motor not properly matched.

• Phase-to-phase short (U, V, or W).

• Accel time too short.

• Voltage Boost setting is too high.

• Motor/machine jammed.

• Mechanical brake engaged while the ASD is running.

• ASD current exceeds 340% of the rated FLA on ASDs that are 100 HP or 

less during acceleration. On ASDs that are greater than 100 HP, this fault 
occurs when the ASD current exceeds 320% of the rated FLA during 
acceleration.

Overheat During 
Acceleration

• Cooling fan inoperative.

• Ventilation openings are obstructed.

• Internal thermistor is disconnected.

• Acceleration time is too short.

• Improper V/f setting.

• ASD or the motor is improperly matched to the application.