Lenze E84DSxxx - Manual (Page 358)

9 Diagnostics & error management
9.10 Error messages of the operating system
358
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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OC1: Power section - short circuit [xx.0123.00016]
OC2: Power section - earth fault [xx.0123.00017]
OC10: Maximum current reached [xx.0123.00030]
OC17: Clamp sets pulse inhibit [xx.0123.00031]
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 a short circuit of the motor
phases. To protect the device electronics, the inverter
control is switched off.
• Mostly, incorrectly executed motor connections are
the cause.
• If the device is inappropriately dimensioned with
regard to the motor load and the current limitation in
the controller (Imax controller) is set incorrectly, this
error message may also occur.
 Motor control: Defining current limits
• Check motor connections and the corresponding plug
connector on the device.
• Only use permissible combinations of device power
and motor power.
• Do not set the dynamics of the current limitation
controller too high.
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 01.xx.xx: Set resp. to earth fault
( C00602 ) to "0: No Reaction".
• From version 02.00.00: 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 02.00.00: Increase filter time for earth
fault detection during operation ( C01770 ).
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 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.