12 Troubleshooting
12 - 14
High-function General-purpose Inverter RX2 Series User’s Manual
If the temperature of inverter gets high due to deterioration of cooling ability resulted from decrease in
fan rotation speed, the inverter turns OFF its output. Refer to E021 also.
When the temperature of inverter gets high, the inverter turns OFF its output.
When [bb-65] input phase loss selection is set to 01, when a missing phase is detected in input line, the
inverter turns OFF its output.
E020 Temperature Error from Cooling Fan Rotation Speed Reduc-
tion
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Cooling fan stopped.
A foreign object is stuck.
If there is a foreign object stuck in the fan, the inverter may
recover by removing it.
It is the end of cooling
fan life.
The cooling fan needs to be replaced.
The cooling fan is
working.
Cooling fan is approach-
ing the end of its life.
The cooling ability has been deteriorated. The cooling fan
needs to be replaced.
E021 Temperature Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred
during operation.
Carrier frequency is high.
The higher the carrier frequency is, the more the temperature
inside the inverter tends to increase. Lower the carrier fre-
quency setting.
There is clogging in the
fin.
The cooling ability is deteriorated. Cleaning the fin may
improve the situation.
• Used in high tempera-
ture environment.
• Cooling of the
surroundings is insuffi-
cient.
Enhancing the use environment or cooling environment may
improve the situation.
The formal installation
condition is not satisfied.
Improper installation of the inverter may results in the inverter
failure. Install the inverter properly in accordance with the
instruction manual.
Error occurred
during stop.
The temperature detec-
tor circuit broke down.
The temperature detector circuit is broken down if the error is
generated consecutively even after a reset. A repair is
required.
E024 Input Open-phase Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred after
power was turned
ON.
An input line or the motor
has a loose connection
or is disconnected.
You need to turn OFF the power supply and check the input
lines and the wiring condition of breaker. This error may also
occur due to PS voltage defect, contact defect, screw tighten-
ing failure, etc.
Single-phase input is
used.
For input lines, use three-phase connection.
Error occurred after
long hours of use.
An input line or breaker
has a loose connection
or is disconnected.
The situation may be improved by mending loose connections
due to loosening of screws or the breaker problems.
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......