GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 134)

GEI-100332Ga
——— FUNCTION DESCRIPTION ———
6
6
6.1.3 Fast stop
Parameter description No.
Value
Standard
Configuration min max
Factory
American
Factory
European
Fast/Stop
Fast Stop
No Fast Stop
316 0 1 No Fast Stop No Fast Stop Terminal 14
+15 ... 30 V
0 V
Terminal 14: +15 ... 30V = No Fast stop 0V = Fast stop
n
ote
! The function cannot be actuated via the keypad!
Application: Fast stop is actuated in emergencies and hazardous situations, in order to stop the drive in the
shortest possible time. This method of stopping has the advantage over disconnection in that with a four quad-
rant drive (6KDV3 ... Q4) energy can be recovered in the AC input and the motor can be brought to a halt in a
shorter time than when it coastes down.
The Fast stop command is always required for operation of the converter. A removal of the command when the
drive is running initiates braking with the ramp specified by the parameters Qstp delta speed and Qstp delta
time.
When the drive is brought to a halt, it is still enabled and has torque. The Start command or Enable drive com-
mand must be removed for it to be disconnected.
The drive behavior after the Fast stop command has been given depends on the type of operating mode se-
lected:
- Operation via the terminal strip (Main commands = Terminals):
The drive executes braking until there is no voltage on terminal 14. When voltage is restored, the drive
automatically accelerates to the required reference value (precondition: the other enable commands are still
active).
- Operation via serial line with commands given via terminals too (Main commands = Digital):
The drive executes braking until it has come to a halt. When voltage is restored on terminal 14, there is no
automatic start. This requires the entry of the Start command.
- If the Fast stop command is actuated via the serial interface while there is a voltage present on terminal 14,
the fast stop is executed until the drive is at a halt. The Start command must be entered for the drive to be
restarted.