Table of Contents
Advertisement
Chapter 9 – Messages
Trip messages
L100 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
Overcurrent
protection
Overload
protection
Overvoltage
protection
EEPROM error
(Note)
Undervoltage
protection
CPU error
External trip
USP error
Ground fault
protection
Input overvoltage
Thermal protection
PTC error
Note: If an EEPROM error occurs, be sure to observe ist value. If power is turned off while the RS input
terminal is held ON, the EEPROM error occurs when power is turned back on.
Description
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 pre-
determined level, the inverter is shut off.
When a motor overload is detected by the electronic
thermal function, the inverter is shut off.
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.
When the inverter memory has a problem due to noise or
excessive temperature rise, this trip occurs and the
inverter is shut off.
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.
Malfunction or abnormality of the CPU. The inverter is
shut off.
A trip signal from external equipment shuts off the
inverter. It is necessary to assign the external trip to an
intelligent terminal.
Indicates an error when power is turned on while the
inverter run is enabled (when USP function is selected).
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.
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.
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.
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).
9-1
Chapter 9 – Messages
Trip display
During constant
E001
speed:
At decele-
E002
ration:
At accele-
ration:
E003
at the others: E004
E005
E007
E008
E009
E011
E022
E012
E013
E014
E015
E021
E035
Advertisement
Table of Contents
