30
COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
PARAMETER SETTING INTERFACE
LEROY-SOMER
3871 en - 2011.05 / h
: Stop mode
Adjustment range : Coast (0), Ramp (1),
Ramp + DC (2), DC to 0 (3),
Timed DC (4)
Factory setting
: Ramp (1)
Coast (0):
Freewheel stop.
The power bridge is deactivated as soon as the stop
command is given.
The drive cannot receive another run command during the
time programmed in
06.63
, the motor demagnetisation time.
After this stopping time, the drive is "ready".
The machine stopping time depends on its inertia.
Ramp (1): Stop on deceleration ramp.
The drive decelerates the motor accordin
g
to the
deceleration mode chosen in parameter
00.40
.
One second after the stop, the drive is "ready".
Ramp + DC (2) (
):
Stop on deceleration ramp with DC
injection for 1 second.
The drive decelerates the motor according to the deceleration
mode chosen in parameter
00.40
.
When zero frequency is reached, the drive injects DC current
for 1 second.
The drive is then "ready".
DC to 0 (3) (
):
Stop by DC injection braking, and
elimination at zero speed.
The drive decelerates the motor by imposing a low frequency
current until it reaches almost zero speed, which the drive
detects automatically.
The drive then injects DC current for 1 second. No run
command can be taken into account until the drive is "ready".
Timed DC (4) (
):
Stop on DC injection with an imposed
period of time.
The drive decelerates the motor by imposing a current for
1 second. No run command can be taken into account until
the drive is "ready".
00.41
Motor
speed
t
Time
Freewheel stop time
Stop
Motor
speed
t
Time
Deceleration
ramp
1 sec
Stop
Motor
speed
Motor
current
t
Time
Deceleration
ramp
Stop
DC injection
Motor current
Motor
speed
Motor
current
t
Time
Braked stop
Motor
current
Low frequency
current injection
DC
injection
Stop
Motor
speed
Motor
current
t
Time
Braked stop
Motor
current
DC injection
Stop