Maloperation Of The Drive - Lenze 8400 StateLine C Reference Manual

8400 StateLine C | Reference manual
Diagnostics & error management

Maloperation of the drive

9.7 Maloperation of the drive
Maloperation
Motor does not
rotate
Motor rotates
irregularly
398
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Cause
DC-bus voltage is too low
• Red LED is blinking every 1 s
• Display in the keypad: LU
Controller is inhibited
• Green LED is blinking
• Display in the keypad: 
Automatic start is inhibited
(Bit 0 in C00142 = 1)
DC-injection braking (DCB) is active
Mechanical motor brake is not released
Quick stop (QSP) is active
• Display in the keypad: 
Setpoint = 0
JOG frequency = 0 at activated JOG setpoint
Trouble is active
With C00006 = 4 "SLVC: Vector control" has
been set, but no motor parameter
identification has been carried out.
Assignment of several mutually exclusive
functions with a signal source in
Motor cable is defective
Maximum motor current in motor or
generator mode is set too low
Motor is underexcited or overexcited
Rated motor data (stator resistance, speed,
current, frequency, voltage) and cos ϕ
and/or magnetising inductance is not
adapted to the motor data
Motor windings are wired incorrectly
L
Remedy
Check mains voltage
Deactivate controller inhibit
• Note: Controller inhibit can be set via
several sources !
• C00158 displays all active sources for
controller inhibit.
LOW/HIGH edge at RFR
If required, correct starting condition with
C00142
Deactivate DC injection brake
Release mechanical motor brake manually or
electrically
Deactivate quick stop
• Note: Quick stop can be set via several
sources!
• C00159 displays all active sources of quick
stop.
Select setpoint
Set JOG setpoint in
Clear fault
Execute automatic motor parameter
identification with the
command
Correct configuration in
C00701
Check motor cable
Adjust settings to the application:
Imax in motor mode
C00023: Imax in generator mode
Check parameterisation:
C00006: Motor control
C00015: VFC: V/f base frequency
C00016: VFC: Vmin boost
Execute automatic motor parameter
identification with the
command
- or -
Adjust motor parameters manually:
C00084: Motor stator resistance
C00087: Rated motor speed
C00088: Rated motor current
C00089: Rated motor frequency
C00090: Rated motor voltage
C00091: Motor cosine phi
C00092: Motor magnetising inductance
Reverse from star connection to delta
connection
Firmware ≤ 11.00 - DMS 8.0 EN - 10/2011
C00039/1...15
C00002/23 device
C00701
C00022:
C00002/23 device