Status Diagram Of The Motor Controller (State Machine) - Festo CiA 402 Manual

5 Device Control
5.1.2

Status diagram of the motor controller (state machine)

Power disabled
(output stage off )
NOT_READY_TO_SWITCH_ON
SWITCH_ON_DISABLED
2
READY_TO_SWITCH_ON
9 8 3
SWITCHED_ON
4
OPERATION_ENABLED
Fig. 5.1 Status diagram of the motor controller
The status diagram can be roughly divided into three areas: "Power Disabled" means that the output
stage is switched off and "Power Enabled" that the output stage is switched on. The statuses needed
for error handling are summarised in the "Fault" area.
The most important statuses of the motor controller are shown in the diagram. After it is switched on,
the motor controller initialises itself and then reaches the status SWITCH_ON_DISABLED. In this status,
Festo – GDCP-CMMS/D-C-CO-EN – 1404NH – English
0
0
1
7
aJ
6
5
aA
aC
Fault
(error)
FAULT_REACTION_ACTIVE
aD
FAULT
aE
aB
Power enabled
(output stage on)
QUICK_STOP_ACTIVE
89