01/02 AWB8230-1413GB
151
7 Messages
This section lists the messages the DF6 frequency inverter issues
and explains their meaning.
Fault messages
When an overcurrent, overvoltage or undervoltage occurs, the
output of the DF6 frequency inverter is disabled to protect the DF6
from damage. The connected motor then coasts to a stop. The
inverter remains in this condition until the fault message is
acknowledged with the OFF key or the RST input.
State of frequency inverter on fault message
The frequency inverter’s state when a fault occurs provides
additional information to help rectify the fault.
Some fault messages indicate the status of the DF6 frequency
inverter with a number after the point.
E07.2
, for example,
means that fault 7 has occurred while the frequency inverter was
in status 2.
The individual states are described in the table below
Fault message indication
Status code
DF6 status
---.0
Reset
---.1
Stop
---.2
Deceleration
---.3
Static operation
---.4
Acceleration
---.5
f
0
stop
---.6
Start
---.7
DC braking
---.8
Current limit
---.9
Autotuning
Display
Cause
Description
E01
Overcurrent in the output stage in
static operation
If the output current reaches an excessive level, the output voltage is switched off. This happens
when
• the frequency inverter’s output is short-circuited,
• the motor is blocked,
• an excessive load is suddenly applied to the output.
E02
Overcurrent in the output stage
during deceleration
E03
Overcurrent in the output stage
during acceleration
E04
Overcurrent in the output stage at
standstill
E05
Overload
The internal electronic motor protection has switched off the output voltage because the motor was
overloaded.
E06
Overload
If the duty factor of the built-in braking transistor of the DF6 is too great, the braking transistor is
switched off (the generated overvoltage disconnects the output voltage).
E07
Overvoltage
The output voltage has been switched off because the motor was operating regeneratively.
E08
EEPROM fault
If the program memory does not operate reliably due to radio frequency interference or excessive
temperature, the output voltage is switched off.
If the supply voltage is switched off while the RST input is active, an EEPROM fault occurs when the
supply voltage is reapplied.
E09
Undervoltage
If the DC voltage is too low, the output voltage is switched off (fault-free function of electronics no
longer possible; any problems, such as overheating of motor and insufficient torque).
E10
Fault in current transformer
The output voltage is disconnected when a fault occurs in the built-in current transformer of the DF6.
E11
Processor malfunction
The processor does not operate correctly. The output voltage is switched off.
E12
External fault message
The output voltage is switched off due to an external fault message which is present on a digital
input configured as an EXT input.
efesotomasyon.com - Klockner Moeller - inverter
