Lenze 8400 StateLine - Manual (Page 455)

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
455
9 Diagnostics & error management
9.9 Error messages of the operating system
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
oC5: Ixt overload [xx.0119.00050]
ot1: Maximum torque reached [xx.0123.00001]
oC7: Motor overcurrent [xx.0123.00007]
oU: DC bus overvoltage [xx.0123.00014]
Response (Lenze setting printed in bold) Setting: C00604 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
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) Setting: C00608 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
The device indicates that the maximally possible torque
at the motor shaft has been reached.
• C00057 displays the current torque.
Reduce motor load.
Response (Lenze setting printed in bold)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Maximum current monitoring has tripped.
• The instantaneous value of the motor current has
exceeded the limit value set in C00939 .
Check and, if required, correct dimensioning of the load
with regard to the installed device power.
Response (Lenze setting printed in bold)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
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, set C00142 so that, when this error is
tripped, the controller only restarts after the
controller inhibit has been switched.
• If this error message remains active longer than the
time set in C00601 , a "Fault" is tripped. Otherwise, the
deactivation of the error message causes the inverter
control to be enabled again
• In case of the control types VFCplus and SLVC, the
motor voltage is approached to the voltage
setpoint alongside a ramp.
• From version 15.00.00 , this voltage ramp can be set
in C00983/2 . If the described remedies are not
possible or do not have any effect, it may be
required to increase this voltage ramp as otherwise
an overcurrent interruption may be caused. This
only happens in case of high motor power and
mass inertia so that the Lenze setting of 1 s should
be sufficient in the majority of cases.
• Reduce load in generator mode.
• Use a brake resistor.
• Use a regenerative power supply unit.
• Establish a DC-bus connection.
• Select a braking method in C00175 which stops the
ramp function generator when reaching the brake
chopper threshold ("HlgStop").