Lenze EMF2102IB - Manual (Page 44)

Appendix
8-12
L
_^ONMObk
Code Remedy
Cause Error PC
1)
Keypad
Name
OH 50 Heat sink temperature
exceeds the value
entered for the controller
Ambient temperature T
amb
> +60 °C • Allow controller to cool and ensure better
ventilation
• Check ambient temperature
Heat sink very dirty Clean heat sink
Impermissibly high currents or too
frequent and too long acceleration • Check drive selection
• Check load, if necessary, replace defective
bearings
OH3 53 PTC monitoring (TRIP) Motor too hot because of excessive
current, or acceleration is too frequent
and too long
Check drive dimensioning
OH51 203 PTC monitoring (warning) PTC not connected Connect PTC or switch off monitoring
OU 102 DC-bus overvoltage Mains voltage too high Check voltage supply OU 102
0
DC bus overvoltage
(only message without
TRIP)
Braking operation • Prolong deceleration times.
• For operation with brake transistor:
– Check the selection and connection of the
brake resistor
– Increase the deceleration times
Earth leakage on the motor side Check motor cable and motor for earth fault
(disconnect motor from inverter)
Pr 75 Faulty parameter transfer
when using the keypad All parameter sets are defective It is absolutely necessary to repeat the data
transfer or load the Lenze setting before
Pr1 72 Wrong PAR1 transfer
when using the keypad. PAR1 is defective.
transfer or load the Lenze setting before
enabling the controller.
Pr2 73 Wrong PAR2 transfer
when using the keypad. PAR2 is defective.
Pr3 77 Wrong PAR3 transfer
when using the keypad. PAR3 is defective
Pr4 78 Wrong PAR4 transfer
when using the keypad. PAR4 is defective
Pt5 81 Time error during
parameter set transfer Data flow from keypad or PC interrupted,
e. g. keypad was disconnected during
transmission
rSt 76 Faulty auto-TRIP reset More than 8 fault messages in 10 minutes Depends on the fault message
sd5 85 Open circuit at analog
input Current at analog input < 4 mA Close circuit at analog input
1) LECOM fault numbers
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