User guide

Lenze · 8400 BaseLine C · Reference manual · DMS 1.6 EN · 01/2014 · TD05 61
4 Device control (DCTRL)
4.2 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 wCANControl.
Related topics:
Process data assignment for control via CAN
( 137)
Basics on error handling in the controller
( 145)
Error messages of the operating system
( 156)
LED DRIVE READY LED DRIVE ERROR Display in C137 Display in status word 1 (C150)
Bit 11 Bit 10 Bit 9 Bit 8
OFF Fault 1000
 Note!
If an undervoltage in the DC bus of the drive controller occurs (error message "LU"), the
device changes to the "Trouble
" state.
An additional error of higher priority leads the device into the "Fault
" state.
According to the Device state machine
, the device changes to the "ReadyToSwitchON"
state after acknowledging the error although the undervoltage is still available!
If in C142
the "Inhibit at fault" auto-start option "is activated, an explicit deactivation
of the controller inhibit is required for leaving the state.