Goodrive300-21 integrated machine for air compressor Troubleshooting
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6 Troubleshooting
6.1 Faults and countermeasures for integrated machine
Table 6-1 Faults and countermeasures
Inverter unit U-phase
protection
ACC is too fast;
IGBT module is damaged;
Misacts caused by
interference;
Drive wires are poorly
connected;
To-ground short circuit occurs.
Increase ACC time;
Replace the power unit;
Check drive wires;
Check whether there is strong
interference surrounding the
peripheral device.
Inverter unit V-phase
protection
Inverter unit
W-phase protection
Overvoltage during
acceleration
Exception occurred to input
voltage;
Large energy feedback.
Check the input power;
Check whether load DEC time
is too short;
or the motor starts during
rotating;
or additional dynamic brake
components is required.
Overvoltage during
deceleration
Overvoltage during
constant speed
running
Overcurrent during
acceleration
ACC/DEC is too fast;
The voltage of the grid is too
low;
Inverter power is too small;
Load transient or exception
occurred;
To-ground short circuit or
output phase loss occurred;
Strong external interference
sources.
Increase ACC/DEC time;
Check the input power;
Select the inverter with larger
power;
Check if the load is short
circuited (to-ground short circuit
or line-to-line short circuit) or the
rotation is not smooth;
Check the output wiring;
Check if there is strong
interference.
Overcurrent during
deceleration
Overcurrent during
constant speed
running
The voltage of the grid is too
low.
Check the grid input power.
The grid voltage is too low.
The motor rated current is set
incorrectly.
The motor stall occurs or the
load transient is too large.
Check the grid voltage.
Reset the motor rated current.
Check the load and adjust the
torque boost quantity.
ACC is too fast;
The motor in rotating is
Increase ACC time;
Avoid restart after stop;
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