Lenze E84DSxxx - Manual (Page 360)

9 Diagnostics & error management
9.10 Error messages of the operating system
360
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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OC11: Clamp operation active [xx.0123.00071]
OC13: Maximum current for Fch exceeded [xx.0123.00090]
OT2: Speed controller output limited [xx.0123.00093]
FCH1: Switching frequency reduction [xx.0123.00094]
FCH2: Maximum speed for Fchop [xx.0123.00095]
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 indicates that the "CLAMP" overcurrent
limitation has been activated.
• A permanent clamp operation causes an overload
disconnection.
Reduce setpoint generation dynamics or 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
The device has detected a motor current which exceeds
the maximum current limit at permanent switching
frequency of the inverter.
• If a permanent switching frequency inverter is set, a
certain limit arises for the maximum current,
depending on the setting. If this current limit is
exceeded due to a load impulse or overload, an error
message is displayed.
• Observe the maximum current setting depending on
the set switching frequency of the inverter.
• Reduce the required load or setting of the dynamic
switching frequency if necessary.
Response (Lenze setting printed in bold) Setting: C00567 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
The output of the speed controller has reached the
internal limit value. In this status, the speed controller is
not able anymore to correct the system deviation.
• Only during "Closed loop" operation or with vector
control (SLVC).
• Observe load requirements.
• Correct dimensioning or reduce setpoint generation
dynamics if necessary.
 Motor control
Response (Lenze setting printed in bold) Setting: C00590 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Load-dependent switching frequency reduction • Observe load requirements.
• Correct dimensioning or reduce setpoint generation
dynamics if necessary.
 Motor control
Response (Lenze setting printed in bold) Setting: C00588 ( Adjustable response)
 0: No Reaction  1: Fault  2: Trouble  3: TroubleQuickStop  4: WarningLocked  5: Warning  6: Information
Cause Remedy
Maximum speed for chopper frequency has been
reached.
• The maximum speed has been exceeded depending
on the switching frequency.
Select the correct maximum speed as a function of the
switching frequency.

Motor control: Determine speed limits