Delta 1.07 VFD-D D - Manual (Page 124)

Chapter 6 Fault Codes and Descriptions |DD Series
6-3
Display Description Corrective Actions
Hardware failure in voltage
detection
1. Check if the input voltage falls within
the rated AC motor drive input voltage
range.
2. Check for possible voltage transients.
DC BUS voltage is less than
Pr.06-00 during acceleration
1. Check if the input voltage is normal
2. Check for possible sudden load
DC BUS voltage is less than
Pr.06-00 during deceleration
1. Check if the input voltage is normal
2. Check for possible sudden load
DC BUS voltage is less than
Pr.06-00 in constant speed
1. Check if the input voltage is normal
2. Check for possible sudden load
DC BUS voltage is less than
Pr.06-00 at stop
1. Check if the input voltage is normal
2. Check for possible sudden load
Phase Loss
Check Power Source Input if all 3 input
phases are connected without loose
contacts.
IGBT overheating
IGBT temperature exceeds
protection level
200~400W: 100℃
1. Ensure that the ambient temperature
falls within the specified temperature
range.
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
The AC motor drive detects
excessive drive output current.
The drive can handle rated
output current 150% for a
maximum 60 seconds.
1. Check if the motor is overloaded.
2. Take the next higher power AC motor
drive model.
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
programmed.
Internal EEPROM can not be
read.
Use the RESET key to reset all parameters
to factory settings, if it does not work,
please return it to the factory.