Influence of the brake control on the state machine
The following state changes are decelerated, if delay on is activated in co21 bit 5
sc:
start operation active
↓
operation enabled
The modulation is enabled in state "start operation active“ and speed = 0
is preset. Subsequently, the setpoint of the brake control (CMD) is set to
1.
After the assumed state of the brake (Val) has reached value 1 (open
brake), the state machine changes to "Operation enabled“.
shutdown operation active
↓
ready to switch on
Speed shutdown to 0 in state "shutdown operation active“ depending on
the selected ramp (standard ramp) or pn47 fault reaction ref velocity (fault
reaction ramp). Subsequently, the setpoint of the brake control (CMD) is
set to 0.
After the assumed condition of the brake (Val) has reached value 0 (brake
closed), the state machine changes to "ready to switch on".
disable operation active
↓
switched on
Speed shutdown to 0 in state "disable operation active" depending on the
selected ramp (standard ramp) or pn47 fault reaction ref velocity (fault re-
action ramp). Subsequently, the setpoint of the brake control (CMD) is set
to 0.
After the assumed condition of the brake (Val) has reached value 0 (brake
closed), the state machine changes to „switched on“.
fault reaction active
↓
fault
The speed is set to pn47 fault reaction ref velocity in the "fault reaction ac-
tive" state. Subsequently, the setpoint of the brake control (CMD) is set to
0.
After the assumed condition of the brake (Val) has reached value 0 (brake
closed), the state machine changes to "fault“.
The states "shutdown operation active“, “disable operation active“ and "fault
reaction active“ are only carried out with the appropriate setting of the state
machine.
➢ Make sure that the appropriate settings have been made in object co32
state machine properties.
Times of the brake control
The times of the brake control can be influenced by the following objects:
Waiting time of Ref↑ to Sig↑
Waiting time of Sig↑ to Val↑
Waiting time of Ref↓ to Sig↓
Waiting time of Sig↓ to Val↓
Status of the brake control
The status of the brake control can be displayed via the following object:
Status of the brake control