Lenze 8400 - Page 660

9 Diagnostics & error management
9.9 Error messages of the operating system
660
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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oC2: Power section - earth fault [xx.0123.00017]
oC10: Maximum current reached [xx.0123.00030]
oC17: Clamp sets pulse inhibit [xx.0123.00031]
oS1: Maximum speed limit reached [xx.0123.00032]
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 recognised an earth fault at one of the
motor phases. To protect the device electronics, the
inverter control is switched off.
• Mostly, incorrectly executed motor connections are
the cause.
• If motor filter, motor cable length, and cable type
(shielding capacity) are dimensioned incorrectly, this
error message may occur due to leakage currents to
PE.
• If motor filters with additional terminals for +UG and
–UG and devices greater or equal 3 kW are used, the
earth fault detection may be triggered due to leakage
currents to +UG and –UG.
• A cause can also be the use of shielded motor cables
longer than 50 m.
• Check motor connections and the corresponding plug
connector on the device.
• Use motor filters, cable lengths, and cable types
recommended by Lenze.
• If motor filters with additional terminals for +UG and
–UG and devices greater or equal 3 kW are used:
• up to version V05.00.00: Set resp. to earth fault
(C00602
) to "0: No Reaction".
• From version V05.01.00 onwards: Deactivate earth-
fault detection during operation by setting the
filter time (C01770
) to 250 ms.
• If motor cables longer than 50 m are used:
• From version V05.01.00 onwards: Increase filter
time for earth-fault detection during operation
(C01770
).
Response (Lenze setting printed in bold) Setting: C00609 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
The device displays that the maximum current has been
reached.
• Check and, if required, correct dimensioning of the
load with regard to the installed device power.
• Check the maximum current settings in C00022
(Imax in motor mode) and C00023
(Imax in generator
mode).
Response (Lenze setting printed in bold) Setting: C00569/1 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Due to a short overcurrent, the inverter was switched off
for a short time (clamp disconnection).
• Check and, if required, correct dimensioning of the
load with regard to the installed device power.
• Reduce the dynamics of the setpoint change or speed
control.
Response (Lenze setting printed in bold) Setting: C00579 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
The device has recognised that the maximum speed has
been reached.
• Limit setpoint selection to maximum values.
• Adjust set speed limitation (C00909
) and frequency
limitation (C00910
).