Festo SEC-AC-305-CO, Manual

Page: 163 / 272

6. Device Control/State diagram (State machine)
6−9
Festo P.BE−SEC−AC−CO−E N en 0802a
State diagram: State transitions
The following table lists all state transitions and their mean
ing:
No. Executed if Bit combination (controlword) Action
Bit 3 2 1 0
0 Power on" or Reset internal transition Execute self test
1 Self test succesful internal transition Activation of the CAN
communication
2 Enable controller" + Enable
power stage" applied
+ Command Shutdown Shutdown = x 1 1 0
3 Command Switch On Switch On = x 1 1 1 Power stage will be
switched on
4 Command Enable Operation Enable Operation = 1 1 1 1 Motor is controlled ac
cording to
modes_of_operation
5 Command Disable Operation Disable Operation = 0 1 1 1 Power stage is disabled.
Motor is freely rotatable
6 Command Shutdown Shutdown = x 1 1 0 Power stage is disabled.
Motor is freely rotatable
7 Command Quick Stop Quick Stop = x 0 1 x
8 Command Shutdown Shutdown = x 1 1 0 Power stage is disabled.
Motor is freely rotatable
9 Command Disable Voltage Disable Voltage = x x 0 x Power stage is disabled.
Motor is freely rotatable
10 Command Disable Voltage Disable Voltage = x x 0 x Power stage is disabled.
Motor is freely rotatable
11 Command Quick Stop Quick Stop = x 0 1 x A braking according to
quick_stop_option_code
is started.