Salicru CV50-008-4F User Manual page 97

Fault
Fault type
code
Over-current when
OC3 constant speed
running
Over-voltage
OV1
when acceleration
Over-voltage
OV2
when deceleration
Over-voltage
OV3 when constant
speed running
DC bus
UV
Under-voltage
OL1 Motor overload
OL2 Inverter overload
OL3 Electrical overload
SPI Input phase loss
SPO Output phase loss
OH1 Rectify overheat
OH2 IGBT overheat
EF External fault
Fault Tracking
Possible cause
 The load transients or rotation is
abnormal
 The grounding is short circuited or
the output is phase loss
 There is strong external interference
 The overvoltage stall protection is
not opened
 The input voltage is abnormal
 There is large energy feedback
 No braking components
 Braking energy is not evacuated
 The voltage of the power supply is
too low
 The overvoltage stall protection is
not opened
 The voltage of the power supply is
too low
 The motor setting rated current is
incorrect
 The motor stall or load transients are
too strong
 The acceleration is too fast
 Reset the rotating motor
 The voltage of the power supply is
too low
 The load is too heavy
 The motor power is too small
 The inverter will report overload
pre-alarm according to the set value
 Phase loss or fluctuation of input
R,S,T
 U,V,W phase loss (or serious
asymmetrical three phase of the load)
 Air duct jam or fan damage
 Ambient temperature is too high
 The time of overload running is too
long
 S1...S8 external fault input terminals
action
What to do
 Check if the load is short circuited
(the grounding short circuited or the
wire short circuited) or the rotation is
not smooth
 Check the output configuration.
 Check if there is strong interference
 Check the setting of relative function
codes
 Check the input power
 Check if the DEC time of the load is
too short or the inverter starts during
the rotation of the motor or it needs
to add the dynamic bracking
components
 Install the braking components
 Check the setting of relative function
codes
 Check the input power of the supply
line
 Check the setting of relative function
codes
 Check the power of the supply line
 Reset the rated current of the motor
 Check the load and adjust the torque
lift
 Increase the ACC time
 Avoid the restarting after stopping
 Check the power of the supply line
 Select an inverter with bigger power
 Select a proper motor
 Check the load and the overload
pre-alarm point.
 Check input power
 Check installation distribution
 Check the output distribution
 Check the motor and cable
 Clean the air duct or the fan
 Reduce the ambient temperature
 Check the external device input
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