Lenze 8400 motec Series, Software Manual, Page: 211 / 376

Firmware
≤
02.00 - DMS 2.1 EN - 03/2011
L
211
8400 motec | Software Manual
Diagnostics & error management
Error messages of the operating system
OC5: Ixt overload [xx.0119.00050]
OC9: Ixt overload - shutdown limit [xx.0119.00052]
OU: DC bus overvoltage [xx.0123.00014]
LU: DC bus undervoltage [xx.0123.00015]
Response (Lenze setting printed in bold) Setting: C00604 (
;
Adjustable response)
; 0: No Reaction ; 1: Fault 2: Trouble : 4: WarningLocked
Cause Remedy
The Ixt overload check has tripped.
• Operating threshold = 100 % Ixt (adjustable in
C00123 )
Possible causes:
• Wrong dimensioning of the device with regard to its
motor load.
• Load cycles are not complied with.
• Check and, if required, correct dimensioning of the
device and the motor load with regard to technical
data.
• Reduce motor load cycles (observe load cycles
according to documentation).
Response (Lenze setting printed in bold)
0: No Reaction
:
1: Fault 2: Trouble 4: WarningLocked
Cause Remedy
The Ixt overload check has tripped.
• Operating threshold = 110 % Ixt (fixed)
Possible causes:
• Wrong dimensioning of the device with regard to its
motor load.
• Load cycles are not complied with.
• Check and, if required, correct dimensioning of the
device and the motor load with regard to technical
data.
• Reduce motor load cycles (observe load cycles
according to documentation).
Response (Lenze setting printed in bold)
0: No Reaction
;
1: Fault
:
2: Trouble 4: WarningLocked
Cause Remedy
The device has detected an overvoltage in the DC bus. To
protect the device hardware, the inverter control is
switched off.
• Depending on the configuration of the auto-start lock
function, C00142 serves to set that, if this error has
been tripped, the controller only starts after the
controller inhibit is switched.
• If this error message remains active longer than the
time set in C00601 , a "Fault" is tripped.
• Reduce load in generator mode.
• Use a brake resistor.
• Use a regenerative power supply unit.
• Establish a DC-bus connection.
Response (Lenze setting printed in bold) Setting: C00600/1 (
;
Adjustable response)
0: No Reaction
;
1: Fault
:
2: Trouble 4: WarningLocked
Cause Remedy
The device has detected a DC bus undervoltage. The
inverter control is switched off because the drive
properties of the motor control cannot be provided
anymore due to the DC bus undervoltage.
• Depending on the configuration of the auto-start lock
function, C00142 serves to set that, if this error has
been tripped, the controller only starts after the
controller inhibit is switched.
• Switch on mains supply or ensure sufficient supply via
DC bus.
• Adjust setting in C00142 if required.