Lenze 8400 BaseLine C - Manual (Page 154)

8 Diagnostics & error management
8.6 Maloperation of the drive
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Lenze · 8400 BaseLine C · Reference manual · DMS 1.6 EN · 01/2014 · TD05
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8.6 Maloperation of the drive
Maloperation Cause Remedy
Motor does not rota-
te
DC-bus voltage is too low
• Red LED is blinking every 1 s
Check mains voltage
Controller is inhibited
• Green LED is blinking
Deactivate controller inhibit
• Note: Controller inhibit can be set via se-
veral sources !
• C158 displays all active sources for cont-
roller inhibit.
Automatic start is inhibited LOW/HIGH edge at RFR
If required, correct auto-start option in C142 .
 "Inhibit at power-on" auto-start option
DC-injection braking (DCB) is active Deactivate DC-injection braking
Mechanical motor brake is not released Release mechanical motor brake manually or
electrically
Quick stop (QSP) active Deactivate quick stop
• Note: Quick stop can be set via several
sources!
• C159 displays all active sources for quick
stop.
Setpoint = 0 Select setpoint
Setpoint = 0 with activated fixed setpoint Set fixed setpoint in C039/1...3
Trouble is active Clear fault
With C006 = 4 zwar "SLVC: Vector control"
has been set, but no motor parameter identi-
fication has been carried out.
Carry out automatic motor parameter identi-
fication with the C002/23 device command.
 Automatic motor data identification
Assignment of several mutually exclusive
functions with a signal source in C701
Correct configuration in C701 .
Motor rotates irregu-
larly
Motor cable is defective Check motor cable
Maximum motor current in motor or genera-
tor mode is set too low
Adjust settings to the application: C022 :
Imax in motor mode
C023 : Imax in generator mode
Motor is underexcited or overexcited Check parameterisation:
C006 : Motor control
C015 : VFC: V/f base frequency
C016 : VFC: Vmin boost
Rated motor data (stator resistance, speed,
current, frequency, voltage) and cos ϕ and/
or magnetising inductance is not adapted to
the motor data
Carry out automatic motor parameter identi-
fication with the C002/23 device command
- or -
Adjust motor parameters manually:
C084 : Motor stator resistance
C087 : Rated motor speed
C088 : Rated motor current
C089 : Rated motor frequency
C090 : Rated motor voltage
C091 : Motor cosine phi
C092 : Motor magnetising inductance
Motor windings are wired incorrectly Reverse from star connection to delta con-
nection