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8. Fault information and troubleshooting methods
8.1 Fault information and troubleshooting methods:
Error code/fault phenomenon
Analysis of the causes of errors and solutions
Er.00
Power failure, power
supply voltage is lower
than 140VAC
low voltage
1. Check the input power voltage to ensure that the input voltage is
within the range of 150-250V. Too high input voltage will damage the
inverter.
2. With large inertia load, the deceleration time setting value is too
small.
3. Inaccurate detection of the power supply voltage by the inverter
makes the display voltage of the inverter inconsistent with the actual
power supply voltage, which requires maintenance.
4.When there is a large inertia load, such an error occurs when the motor
decelerates, please consider installing a suitable external braking
resistor.
Er.01
The
power
supply
voltage is higher than
290VAC,
and
the
internal bus voltage is
too high
Voltage too high
Er.02
The current is too
large
When the motor is running, overcurrent occurs (the actual output current
is too large), please check whether the motor is short-circuited, the
connection method is correct, and the mechanical load is too large.
Otherwise, maintenance is required.
Er.03
External PWM
circuit error
When the motor is running, there is an error in the internal PWM circuit
of the CPU. Turn off the power for about 1 minute, and then retry the
operation. If this phenomenon occurs again, maintenance is required.
Er.04
IPM alarm (short
circuit)
1
、
When the motor is running, the internal power unit module of the
inverter h
2
、
The gate drive voltage of the power component is too high or too
low, requiring maintenance.as an error:
3
、
The acceleration and deceleration time settings are too short;
4
、
The inverter is overcurrent and overheated, please check whether
the motor is short-circuited or the mechanical load is too large;
5
、
The input voltage is too high/low, or the input voltage fluctuates
greatly;
6
、
The power of the inverter and the motor do not match, or the
star/delta wiring is wrong;
7
、
The DC braking parameters (P01.09-P01.17) are set improperly;
8
、
VF parameters (P00.04-P00.12) are set improperly;
9
、
The cooling fan is damaged or blocked, and the inverter has poor
heat dissipation;
Er.05
External fault signal
is input
When the external fault signal input is valid, the motor stops and
displays this code, reset can be eliminated, no maintenance is required
Er.06
Internal data storage
error
There is an error in the internal data parameter storage of the inverter.
Turn off the power for about 1 minute, and then test the operation. If this
phenomenon occurs again, maintenance is required.
Er.07
Over temperature
The internal temperature of the inverter is too high (above 65 degrees),
please check:
1. When the motor is running, whether the cooling fan stops rotating
