Messages
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10. Messages
Trip messages
L2000 series inverters will trip on overcurrent, overvoltage and undervoltage to protect the
inverter.The output is shut down and the motor runs free. This condition is held until the trip state is
reset using the RESET key or the RS input.
Type of trip
Description
Trip display
Overcurrent
protection
When the output of the inverter is short circuited,
the motor is locked, or a heavy load is suddenly
applied, and the inverter output current exceeds a
predetermined level, the inverter is shut off.
During constant
speed:
E
0
01
At decele-
ration:
E
0
02
At accele-
ration:
E
0
03
at the others:
E
0
04
Overload
protection
When a motor overload is detected by the electronic
thermal function, the inverter is shut off.
E
0
05
Overvoltage
protection
When the inverter DC bus voltage exceeds a
predetermined level due to regenerative energy from
the motor, this trip occures and the inverter is shut
off.
E
0
07
EEPROM error
(
Note
)
When the inverter memory has a problem due to
noise or excessive temperature rise, this trip occurs
and the inverter is shut off.
E
0
08
Undervoltage
protection
A decrease of DC bus voltage may result in
improper function of the control unit. It may also
cause motor heating and low torque. The inverter is
shut off when the DC bus voltage goes below a
certain level.
E
0
09
CPU error
Malfunction or abnormality of the CPU. The inverter
is shut off.
E
0
11
E
0
22
External trip
A trip signal from external equipment shuts off the
inverter. It is necessary to assign the external trip to
an intelligent terminal.
E
0
12
USP error
Indicates an error when power is turned on while the
inverter run is enabled (when USP function is
selected).
E
0
13
Ground fault
protection
The inverter is protected by detection of ground
faults between the drive output and the motor at
power on. Protection is for the inverter only and not
for humans.
E
0
14
Input overvoltage
When the input voltage is higher than a specified
value, it is detected and 100 seconds after power is
turned on, the inverter is shut off.
E
0
15
Thermal
protection
When the temperature of the inverter module is
beyond specification, the thermal sensor in the
inverter module detects the temperature and the
inverter is shut off.
E
0
21
PTC error
When the resistance value of the external thermistor
is too large, the equipment detects the abnormal
condition of the thermistor and then shuts off the
inverter (when PTC function is selected).
E
0
35
Note
: If an EEPROM error occurs, be sure to observe its value. If power is turned off while the RS input
terminal is held ON, the EEPROM error occurs when power is turned back on.