GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 135)

DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
6
7
6.1.4 Quick Stop
Parameter description No.
Value
Standard
Configuration min max
Factory
American
Factory
European
Quick stop
Quick stop
No Quick stop
343 0 1 No Quick
stop
No Quick
stop
n
ote
! This function cannot be executed via the terminal strip or the keypad but can only be actuated
via the serial interface or a bus connection!
a
PPliCation
: Quick stop is actuated in emergencies or hazardous situations in order to bring the drive to a
halt in the shortest possible time. This method of stopping has the advantage over disconnec-
tion in that with a tetraquadrant drive (6KDV3 ... Q4) energy can be recovered in the main
and the motor can be brought to a halt in a shorter time than when it coastes down.
- If the Quick stop command is given when the drive is running, this initiates braking with
the ramp specified by the Qstp delta speed and Qstp delta time parameters.
- When the drive is at a halt, it is disabled and thus has no torque. The Start command must
be given again for the drive to be started.
6.1.5 External fault
Parameter description No.
Value
Standard
Configuration min max
Factory
American
Factory
European
External fault
External fault
No External fault
- - - - Terminal 15
+15 ... 30 V
0 V
The External fault command enables an external signal to be incorporated in the failure alarms of the con-
verter.
a
PPliCation examPle
The converter is being used for closed-loop control of a single drive without contactors. A
temperature-dependent contact, which opens under excessive temperature, is located within
the motor. Connect this contact between 24 V and terminal 15. When the contact opens (=
overtemperature) the converter will be disabled.
- During operation a signal is always required on terminal 15, irrespective of whether the
commands are transmitted via the terminal strip or not.
- In the event of an external fault, the drive will behave according to the configuration set
in the “Programmable Alarms, 6.11.7.”.