Lenze 8400 TopLine - Manual (Page 118)

4 Device control (DCTRL)
4.2 Device state machine and device states
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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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4.2.5 ReadyToSwitchOn
The controller is in this device status directly after the initialisation has been completed!
• The bus systems are running and the terminals and encoders are evaluated.
• The monitoring functions are active.
• The controller can be parameterised.
• The application is basically executable.
"DRV-RDY" LED "DRV-ERR" LED Display in C00137 Display in status word 1 ( C00150 )
Bit 11 Bit 10 Bit 9 Bit 8
OFF ReadyToSwitchOn 0 0 1 1

Note!
• The "ReadyToSwitchOn" state is not only activated after the mains connection, but
also after the deactivation of " Trouble ", " Fault " or " SafeTorqueOff ".
• If C00142 activates the autostart option "Inhibit at power-on" (Lenze setting), explicit
deactivation of the controller inhibit after mains connection is always required for the
controller to change from the "ReadyToSwitchOn" status to the " SwitchedOn " status.
• If only the 24V voltage supply is available during the mains connection, the error
message " LU: Undervoltage in the DC bus " is entered into the logbook of the drive
controller and the drive controller remains in the "ReadyToSwitchOn" status.

Danger!
If the "Inhibit at power-on" auto-start option has been deactivated in C00142 , the
"ReadyToSwitchOn status switches directly to the " SwitchedOn " status after mains
connection.
 Automatic restart after mains connection/fault... ( 124)