Siemens SIMOTRAS 6SG7050 - Page 309

01.04 Function descriptions
SIEMENS AG 6SG7000-0BA76 9-11
SIMOTRAS HD Operating Instructions
Sequence of operations for cancellation of "Fast stop":
1. Stop applying "Fast stop" command
2. Enter the "Shutdown" command (e.g. via terminal "Switch-on / shutdown”)
3. Converter exits operating state o8
On
External fast stop
Shutdown
Controller not enabled
P088
Switch-on/Shutdown
Fast stop
Internal fast stop
Internal controller enable
Internal setpoint enable
n < n (P370,P371)
Actual speed value
Brake control signal
(holding brake)
min
No fast stop
Controller enable
Setpoint enabled
Setpoint reached
n > n
min
Release brake
Internal fast stop
Setpoint =0
n < n
min
Setpoint reached
Close brake
P087
P319
No fast stop
P087 Brake release time(negative in this case)
P088 Brake closing time
P319 Delay of setpoint enable
− The "Fast stop" command need only be applied as a short pulse (> 10 ms). It is then stored
internally. The memory can be reset only by applying the "Shutdown" command ("0" signal on the
terminal).
− All "Fast stop" commands are ANDed by the SIMOTRAS converter, i.e. all commands must be set
to "No fast stop" before the function can be deactivated.
− When n < n
min
(P370, P371) is reached for the first time, an internal interlock is activated which
prevents the drive from attempting to brake again if the motor is turned by external forces. The n <
n
min
signal then disappears again.