Lenze 8400 motec - Manual (Page 77)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 77
4 Device control (DCTRL)
4.2 Device state machine and device states
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
4.2.8 Fault
In the "Fault" device state
• is the controller if monitoring has caused a "Fault" error response.
• the motor has no torque (is coasting) due to the inhibit of the inverter.
The error must explicitly be reset ("acknowledged") in order to exit the device state, e.g. by the de-
vice command " Reset error " or via the control bit "ResetFault" in the control word wDriveControl.
Related topics:
 wDriveControl control word ( 211)
 Basics on error handling in the controller ( 283)
 Error messages of the operating system ( 297)
LED status display Display in C00137 Display in status word 1 ( C00150 )
Bit 11 Bit 10 Bit 9 Bit 8
Fault 1 0 0 0

Note!
If an undervoltage in the DC bus of the drive controller occurs (error message "LU"), the
device changes to the " Trouble " status.
An additional error of higher priority leads the device into the " Fault " status.
According to the Device state machine , the device changes to the " ReadyToSwitchOn "
status after acknowledging the error although the undervoltage is still available!
If the "Inhibit at fault" auto-start option has been activated in
C00142 , explicit deactiva-
tion of the controller inhibit is required before the status can be abandoned.