Lenze 8400 - Device State Machine and Device States

4 Device control (DCTRL)
4.2 Device state machine and device states
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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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4.2 Device state machine and device states
The behaviour of the inverter is mainly determined by the current device status within the device
state machine. Which device status is active and which device status is next depends on certain
control signals (e.g. for controller inhibit and quick stop) and status parameters.
• The arrows between the device states mark possible state changes.
• The digits stand for the status ID (see table below).
Device state machine
Grey field: Pulse inhibit
 Can be reached from all statuses.
 "Warning" contradicts the definition of a device status. In fact, it is a message which is to call attention to
the device status the warning exists for.
"Warning" can occur in parallel to other device states.
ReadyTo
SwitchON
3
Init
1
SwitchedOn
4
Operation
Enabled
5
Trouble
7
TroubleQSP
9
0
SystemFault
11
Firmware
Update
0
SafeTorqueOff
10
Fault
8
0
0
Warning
Ident
2
1
Power on