KEB Combivert F5 Instruction Manual page 67

Error Diagnosis
Display COMBIVIS
E.nOL No error overload
E.nOL2 No error overload 2
E. OC Error ! Overcurrent
Error ! Overheat power
E. OH
module
E.OH2 Error ! Motor protection
E.OHI Error ! Internal overheat
E. OL Error ! Overload (Ixt)
E.OL2 Error ! Overload 2
E. OP Error ! Overvoltage
E.OS Error ! Over speed
E.PFC Error ! Power factor control
E.PrF Error ! Prot. rotation forward
E.Prr Error ! Prot. rotation reverse
E. Pu Error ! Power unit
Va-
Meaning
lue
No more overload, OL-counter has reached 0%; after the error E.OL a
cooling phase must elapse. This message appears upon completion of
17
the cooling phase. The error can be reset now. The inverter must remain
switched on during the cooling phase.
20 The cooling time has elapsed. The error can be reset.
Occurs, if the specified peak current is exceeded. Causes:
acceleration ramps too short
the load is too big at turned off acceleration stop and turned off constant
current limit
short-circuit at the output
4
short-circuit at the output
deceleration ramp too short
motor cable too long
EMC
DC brake at high ratings active
Overtemperature of power module. Error can only be reset at E.nOH.
Causes:
8 insufficient air flow at the heat sink (soiled)
ambient temperature too high
ventilator clogged
30 Electronic motor protective relay has tripped.
Error: Overheating in the interior: error can only be reset at E.nOHI, if
6
the interior temperature has dropped by at least 3 °C
Error: Overload error can only be reset at E.nOL, if OL-counter reaches
0% again. Occurs, if an excessive load is applied longer than for the
permissible time (see technical data).Causes:
poor control adjustment
16
mechanical fault or overload in the application
inverter not correctly dimensioned
motor wrongly wired
encoder damaged
Occurs if the standstill constant current is exceeded (see technical data
19 and overload characteristics). The error can only be reset if the cooling
time has elapsed and E.nOL2 is displayed.
Voltage in the DC-link circuit too high. Occurs when the DC bus voltage
rises above the permissible value. Causes:
poor controller adjustment (overshooting)
input voltage too high
1
interference voltages at the input
deceleration ramp too short
braking resistor defective or too small
58 The speed lies outside the specified limits (LF.43)
33 Error in the power factor control
The drive has driven onto the right limit switch. Programmed response
46
„Error, restart after reset".
The drive has driven onto the left limit switch. Programmed response
47
„Error, restart after reset".
12 General power circuit fault (e. g. fan)
continued on next page
GB - 67