09/01 AWB8230-1412GB
103
7 Messages
In this section, the messages issued by the DF5 series frequency
inverters are listed and explained.
Fault messages
At overcurrent, overvoltage and undervoltage conditions, the
output of the DF5 series frequency inverters is shut down to
protect against 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.
Display Cause Description
E 01 Overcurrent in the output stage in
static operation
If the output current reaches a level which is too high, the output voltage is shut down.
This happens when
• there is a short-circuit on the output of the frequency inverter,
• the motor is blocked,
• the effective load on the output is too high.
E 02
Overcurrent in the output stage
during deceleration
E 03
Overcurrent in the output stage
during acceleration
E 04
Overcurrent in the output stage in
standstill
E 05
Overload The internal electronic motor protection has switched off the output voltage because the motor was
overloaded.
E 07
Overvoltage The output voltage has been switched off because the motor was operating regeneratively.
E 08
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.
E 09 Undervoltage If the DC voltage is too low, the output voltage is switched off (correct function of the electronics is
no longer possible; problems such as overheating of the motor and insufficient torque may arise).
E 11
Processor malfunction The processor does not operate correctly. The output voltage is switched off.
E 12
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.
E 13
Restart inhibit activated The mains voltage was switched on or a brief interruption in the supply voltage has occurred while
the restart inhibit (input USP) was active.
E 14
Ground fault Earth faults between the U, V or W terminals and earth are being reliably detected. A protective
circuit prevents destruction of the frequency inverter, but does not protect the operating personnel.
E 15
Mains overvoltage If the supply voltage is higher than permitted, the output voltage is switched off 100 s after the
voltage supply has been switched on.
E 21
Over temperature If the temperature sensor installed in the power section records an operating temperature above the
permissible limit value, the output voltage is switched off.
E 22
Processor malfunction The processor does not operate correctly. The output voltage is switched off.
E 35
PTC fault message If the resistance of the external PTC thermistor connected to the PTC input (digital input configured
as a PTC thermistor input) is too high, the output voltage is switched off.
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