KEB COMBIVERT F4-C Applications Manual page 237

Error Assistance
Overlaod
Cooling phase completed
Overtemperature
Motor protective relay
ext. Overtemperature
no Overtemperature
Load shunt error
Set selection error
Bus error
External fault
Power unit code
Chapter Section Page
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Occurs when a too large load is applied longer than the permissible time allows (see
Technical Data).
Causes:
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:
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:
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.
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.
Date Name: Basis
KEB COMBIVERT F4-C
05.06.98
- mechanical fault or overload in the application
- wrong dimensioned inverter
- wrong wired motor
- insufficient cooling
- ambient temperature too high
- fan clogged
- resistance at terminals OH/OH >1650 Ohm
- motor overloaded
- open circuit to temperature sensor
- load shunt defect
- input voltage wrong or too low
- high losses in the supply line
- wrong connected braking resistor
- braking module defect
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