Lenze 8400 TopLine - Manual (Page 710)

10 Diagnostics & error management
10.9 Error messages of the operating system
710
Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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oC2: Power section - earth fault [xx.0123.00017]
Sd2: Open circuit resolver [xx.0123.00024]
Sd7: Encoder communication error [xx.0123.00026]
Sd4: Open circuit MultiEncoder [xx.0123.00027]
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:
• Deactivate earth-fault detection during operation
by setting the filter time ( C01770 ) to 250 ms.
• If motor cables longer than 50 m are used:
• Increase filter time for earth-fault detection during
operation ( C01770 ).
Response (Lenze setting printed in bold) Setting: C00603/2 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
• Encoder signal interferences (EMC).
• Resolver cable interrupted.
• Resolver defective.
• Check resolver cable.
• Check resolver.
• Switch off monitoring ( C00603/2 = "0: No reaction")
when the resolver is not used.
Response (Lenze setting printed in bold) Setting: C00603/4 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
• Encoder cable interrupted.
• Encoder defective.
• Check encoder cable
• Check encoder.
• Check parameter setting.
Response (Lenze setting printed in bold) Setting: C00603/1 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
• Encoder cable interrupted.
• Encoder defective.
• Supply voltage for the encoder not sufficient.
• Check encoder cable.
• Check encoder.
• Check the set encoder supply voltage in C00421 .
Adapt setting to the max. permissible encoder supply
voltage. If required, additional voltage drops of the
encoder cable have to be taken into consideration.
• Switch off monitoring ( C00603/1 = "0: No reaction")
when the encoder is not used.