Salicru CV30, Руководство пользователя, Страница: 96 / 140

96 - 140 Fault Tracking
Fault code Fault type Possible cause What to do
OL2 Inverter overload
1. The acceleration is too fast
2. Reset the rotating motor
3. The voltage of the power
supply is too low.
4. The load is too heavy.
5. Close loop vector control,
reverse direction of the code
panel and long low-speed
operation 1. Increase the ACC time
2. Avoid the restarting after
stopping.
3. Check the power of the supply
line
4. Select an inverter with bigger
power.
5. Check the setting of relative
function codes.
OL3 Electrical overload
The inverter will report overload
pre-alarm according to the set
value.
Check the load and the overload
pre-alarm point.
SPI Input phase loss
Phase loss or fluctuation of input
R,S,T 1. Check input power
2. Check installation distribution
SPO Output phase loss
U,V,W phase loss (or serious
asymmetrical three phase of the
load)
1. Check the output distribution
2. Check the motor and cable
OH1 Rectifier overheat
1. Air duct jam or fan damage
2. Ambient temperature is too
high.
3. The time of overload running
is too long.
1. Refer to the overcurrent
solution
2. Redistribute
dredge the wind channel or
change the fan
3. Low the ambient temperature
4. Check and reconnect
5. Change the power
6. Change the power unit
7. Change the main control
panel
OH2 IGBT overheat
EF External fault
S1…S4 external fault input
terminals action
Check the external device input
CE Communication error
1. The baud rate setting is
incorrect.
2. Fault occurs to the
communication wiring.
3. The communication address
is wrong.
4. There is strong interference to
the communication.
1. Set proper baud rate
2. Check the communication
connection distribution
3. Set proper communication
address.
4. Change or replace the
connection distribution or
improve the anti-interference
capability.