Chapter 6 Fault Codes and Descriptions DD Series

 

Display

Description

 

Corrective Actions

 

 

 

 

 

 

 

Hardware failure in voltage

1.

Check if the input voltage falls within

 

 

detection

 

the rated AC motor drive input voltage

 

 

 

 

range.

 

 

 

2.

Check for possible voltage transients.

 

 

 

 

 

 

 

DC BUS voltage is less than

1.

Check if the input voltage is normal

 

 

Pr.06-00 during acceleration

2.

Check for possible sudden load

 

 

 

 

 

 

 

 

 

 

DC BUS voltage is less than

1.

Check if the input voltage is normal

 

 

Pr.06-00 during deceleration

2.

Check for possible sudden load

 

 

 

 

 

 

 

 

 

 

DC BUS voltage is less than

1.

Check if the input voltage is normal

 

 

Pr.06-00 in constant speed

2.

Check for possible sudden load

 

 

 

 

 

 

 

 

 

 

DC BUS voltage is less than

1.

Check if the input voltage is normal

 

 

Pr.06-00 at stop

2.

Check for possible sudden load

 

 

 

 

 

 

 

 

 

Phase Loss

Check Power Source Input if all 3 input

 

 

phases are connected without loose

 

 

 

 

 

 

contacts.

 

 

 

 

 

 

 

IGBT overheating

1.

Ensure that the ambient temperature

 

 

 

falls within the specified temperature

 

 

IGBT temperature exceeds

 

 

 

 

range.

 

 

protection level

 

 

 

200~400W: 100

2.

Make sure the ventilation holes are not

 

 

 

obstructed and fan is spinning freely.

 

 

 

 

 

 

 

3.

AC motor drive should be placed in a

 

 

 

 

good ventilation space.

 

 

 

 

 

 

 

Overload

1.

Check if the motor is overloaded.

 

 

 

 

 

 

The AC motor drive detects

2.

Take the next higher power AC motor

 

 

 

drive model.

 

 

excessive drive output current.

 

 

 

The drive can handle rated

 

 

 

 

output current 150% for a

 

 

 

 

maximum 60 seconds.

 

 

 

 

 

 

 

 

 

Motor 1 Overload

1.

Check if motor 1 is overloaded.

 

 

 

 

 

 

 

2.

Check the motor’s rated current (Pr.

 

 

 

 

01-01 or 01-12).

 

 

 

3.

Increase motor capacity

 

 

 

 

 

 

 

Internal EEPROM can not be

Use the RESET key to reset all parameters

 

 

programmed.

 

 

 

to factory settings, if it does not work,

 

 

Internal EEPROM can not be

 

 

please return it to the factory.

 

 

read.

 

 

 

 

 

 

 

6-3

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3Com VFD-D D manual Fault Codes and Descriptions DD Series

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