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1
KEB COMBIVERT F4-C
4
Name: Basis
05.06.98
Error Assistance
Chapter
Section
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Date
©
KEB Antriebstechnik, 1997
All Rights reserved
Occurs when a too large load is applied longer than the permissible time allows (see
Technical Data).
Causes:
- mechanical fault or overload in the application
- wrong dimensioned inverter
- wrong wired motor
After the error E. OL a cooling time must elapse. This message appears after the
cooling phase is completed. The error can be reset.
Occurs when the heat sink temperature rises above the permissible limit (see
Technical Data). Causes:
- insufficient cooling
- ambient temperature too high
- fan clogged
Occurs when the eletronic motor protective relay (Pn.3 = 3 or 4) trips (also refer to
6.7.4).
Occurs when the external temperature monitoring trips.
Causes:
- resistance at terminals OH/OH >1650 Ohm
- motor overloaded
- open circuit to temperature sensor
Internal or external overtemperature error no longer exists. Error "E. OH" or "E.dOH"
can be reset.
Load shunt not bridged, occurs for a short time during the switch on phase, but
must be automatically reset immediately. If the error message remains, it may have
following causes.
- load shunt defect
- input voltage wrong or too low
- high losses in the supply line
- wrong connected braking resistor
- braking module defect
Error SEt occurs, when trying to select a locked parameter set.
Error buS; for bus operation a monitoring time (Watchdog time ud.8) can be adjusted.
The error is triggered when no telegrams are received within the the adjusted time.
Error External Fault is triggered, when a digital input is being programmed as external
error input (di. 3...di.10 = 6) and trips.
Error Power unit Code invalid; during the initialization phase the power unit was not
identified or detected as non-permissible.
Load shunt error
Cooling phase completed
Overtemperature
ext. Overtemperature
no Overtemperature
Overlaod
Motor protective relay
Set selection error
Bus error
External fault
Power unit code
