8400 StateLine C | Reference manual
Diagnostics & error management
Error messages of the operating system
422 L Firmware ≤ 11.00 - DMS 8.0 EN - 10/2011
 
dF21: BU watchdog [xx.0145.00033]
dF22: CU watchdog [xx.0145.00034]
dF10: AutoTrip reset [xx.0145.00035]
dF50: Retain error [xx.0145.00050]
dF51: CuCcr error [xx.0145.00051]
Ck16: Time overflow manual operation [xx.0184.00064]
Response (Lenze setting printed in bold)
 0: No Reaction : 1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Device error Consultation with Lenze required.
Response (Lenze setting printed in bold)
 0: No Reaction : 1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Device error Consultation with Lenze required.
Response (Lenze setting printed in bold) Setting: C00189  (; Adjustable response)
; 0: No Reaction : 1: Fault ; 2: Trouble ; 3: TroubleQuickStop ; 4: WarningLocked ; 5: Warning ; 6: Information
Cause Remedy
Too frequent auto-trip reset.  • Check the error cause that activates the auto-trip 
reset.
 • Eliminate error cause and reset (acknowledge) error 
manually afterwards.
Response (Lenze setting printed in bold)
 0: No Reaction : 1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
An error has occurred when accessing retain data.
 • Either caused by an internal hardware error or by lack 
of mains switching after a firmware download.
Mains switching
 • If the problem occurs again, you needs to consult 
Lenze.
Response (Lenze setting printed in bold)
 0: No Reaction : 1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Device error Mains switching
 • If the problem occurs again, you needs to consult 
Lenze.
Response (Lenze setting printed in bold)
 0: No Reaction : 1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Manual PC control: The connection monitoring has 
tripped.
 • The online connection between the PC and the 
controller has been interrupted for a longer period of 
time than the timeout set in C00464/1
.
 • Check the communication link between the PC and 
the controller.
 • Check the voltage supply/function of the controller.
 • Adjust the timeout (C00464/1
).