EM330D User Manual
A Special Purpose Inverter for Hoisting
93
current is in serious imbalance.
When inverter trips faults as stated above, press STOP/RESET button or use reset terminal
to clear fault. If the fault is cleared, inverter will return the function setting state. Otherwise,
the trip code will be displayed on LED continuously.
When faults trip in inverter’s operation, if fault retry (set by FC-24) is enabled, after certain
setting interval time (set by FC-25), the inverter will reset fault automatically and try to run.
FC-24 sets the retry times of fault reset. If the fault times exceeds the setting value within
30 seconds, and then the inverter stops retry and keeps in fault status.
Reference of LED Characters
LED Characters and the Corresponding English Characters
a
b
C
D
E
F
G
H
I
l
A
B
C
D
E
F
G
H
I
L
N
O
p
q
r
s
t
U
H
y
N
O
P
Q
R
S
T
U
X
Y
9.2
Fault Analysis
After power is on, due to improper function setting and incorrect wiring between inverter
and external control terminals, motor cannot meet the expected working standard. Fault
analysis as described in this chapter can be taken as the reference to take as the corrective
actions. If trip codes appear, see 9.1 for the corrective actions to clear the trips.
9.2.1
Parameter Setting Failures
Press UP/DOWN button, the parameters remain unchanged.
Some parameters can only be edited when the inverter stopped.
Press UP/DOWN button, parameter changes, but they cannot be saved.
Some parameters cannot be edited since they are locked.
9.2.2
Abnormal Motor Operation
Press RUN button, the motor does not run.
Start/Stop is in terminal control mode: Check the setting of F0-04.
Coast-to-stop terminals FRS is connected to COM:Disconnect FRS from COM.
When the terminal (Run Command Switched to Terminal) is on, the run
command is only controlled by terminal at mean time: Make the terminal off.
Status combination of run command Input is terminal controlled: Change it to
keypad control.
Setting reference input frequency= 0: Increase reference input frequency.
Power supply is abnormal or control circuit fails.
