Delta VFD4A2ME43ANNAA User Manual

Chapter 14 Fault Codes and DescriptionsME300
14-8
Fault treatment parameter Pr.06-53
Reset method Manual reset
Reset condition Immediately reset when DC BUS is higher than Pr.07-00.
Record Yes
Cause Corrective Actions
Phase loss of input power Correctly install the wiring of the main circuit power.
Single phase power input to
three-phase models
Choose the model whose power matches the voltage.
Power voltage changes
If the main circuit power works normally, verify the main circuit.
Cycle the power after checking the power. If OrP error still exists, return to the
factory for repair.
Loose wiring terminal of input
power
Tighten the terminal screws according to the torque described in the user
manual.
The input cable of three-phase
power is cut off.
Wire correctly.
Replace the cut-off cable.
Unbalanced three-phase of input
power
Check the power three-phase status.
Use Open Delta power system Install reactors or use drives with higher power.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
16
IGBT overheating
(oH1)
IGBT temperature exceeds the protection level.
(Refer to Pr.06-15)
Action and Reset
Action level
When Pr.06-15 is higher than the IGBT overheating protection level, oH1 error
occurs instead of oH1 warning.
Action time
IGBT temperature exceeds the protection level for more than 100 ms, oH1 error
occurs.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Reset only when IGBT temperature is lower than oH1 error level minus (-) 10°C.
Record Yes
Cause Corrective Actions
Check if the ambient temperature
or temperature inside the control
cabinet is too high, or if there is
obstruction in the ventilation hole
of the control cabinet.
1. Check the ambient temperature.
2. Regularly inspect the ventilation hole of the control cabinet.
3. Change the installed place if there are heating objects, such as braking
resistors, in the surroundings.
4. Install/ add cooling fan or air conditioner to lower the temperature inside the
cabinet.
Check if there is any obstruction on
the heat sink or if the fan is
running.
Remove the obstruction or replace the cooling fan.
Insufficient ventilation space Increase ventilation space of the drive.
Check if the drive matches the
corresponding load.
1. Reduce the load.
2. Reduce the carrier.
3. Replace the drive with a larger capacity model.
The drive has run 100% or more
than 100% of the rated output for a
long time.
Replace the drive with a larger capacity model
ID No. Display on LCM Keypad Fault Name Fault Descriptions
18
IGBT temperature
detection failure
(tH1o)
IGBT hardware failure in temperature detection
Action and Reset
Action level NTC broken or wiring failure
Action time
When the IGBT temperature is higher than the protection level, and detection
time exceeds 100 ms, the tH1o protection activates.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record Yes

Delta VFD4A2ME43ANNAA Specifications

General

Brand	Delta
Model	VFD4A2ME43ANNAA
Category	DC Drives
Language	English