CDE360 Vector Control AC Drive Chapter 7 Fault Detection and Diagnostics
Chapter 7
Fault Detection and Diagnostics
7.1 Faults and Solutions
If a fault or alarm happened, keypad will display the fault or alarm at once. Fault displays “Er”+fault
code and the alarm displays “AL”+fault code. You can use the STOP/RST key or X terminal reset
function to reset the fault or alarm.
These parameters of
A1.00
～
A1.35
are used to record the fault code and drive status of the recent
three faults of the drive.
Table 7- 1 LED Fault and display
Display
Fault Name
Possible Causes
Solutions
Er01
Hardware over
voltage during
acceleration
The acceleration time is too short.
Increase the acceleration time.
The inertia of the load is too large.
Enable dynamic brake.
The output circuit is short
circuited.
Check motor wiring and output
to ground impedance.
The input voltage is too high.
Adjust the voltage to normal
range.
Er02
Hardware over
voltage during
deceleration
The deceleration time is too short.
Increase the deceleration time.
The inertia of the load is too large.
Use dynamic brake.
The output circuit is short
circuited.
Check motor wiring and output
to ground impedance.
The input voltage is too high.
Adjust the voltage to normal
range.
the regulator parameters are
improper In SVC control mode.
Set regulator parameters
properly.
Er03
Hardware over
voltage during
constant
speed
The motor parameters are
improper.
Set regulator parameters
properly.
The load fluctuation is too big
Check the load.
The input voltage is too high.
Adjust the voltage to normal
range.
The output circuit is short
circuited.
Check motor wiring and output
to ground impedance.
the regulator parameters are
improper In SVC control mode.
Set regulator parameters
properly.
Er04
Software over
voltage during
acceleration
Motor to ground is short circuit.
Check motor wiring.
The input voltage is too high.
Adjust the voltage to normal
range.
Start again quickly when motor in
high speed rotating.
Start again when motor is stop.
