Lenze 8240 frequency inverters - Manual (Page 55)

Troubleshooting and fault elimination
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8.4 Reset of fault indications
TRIP
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Code Name Possible settings IMPORTANT
Lenze Selection Info
C170 ¿ TRIP-reset selection -0- TRIP-reset by pressing the STP key
or a LOW signal at ctrl. enable
-1- Auto-TRIP reset
C171 Deceleration for
Auto-TRIP reset
0 0 {1s} 60
Function You can select whether the active fault is to be reset automatically or manually.
Auto-Trip reset does not reset all faults automatically.
Activation C170 = -0-:
D
Manual TRIP-reset
D
STP key
D
LOW signal at terminal 28
C170 = -1-:
Auto-Trip reset resets the following fault messages after the time set under C171:
- OC3 (overload during acceleration)
- OC4 (overload during deceleration)
- OC5 (overload)
- OC6 (I ¡ t switch-off)
- OH (overtemperature)
- OUE (overvoltage in DC bus)
Important Mains switching always resets TRIP.
With more than 8 auto-trip resets within 10 minutes, the controller sets TRIP and indicates rST
(numerator exceeded).
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