6
8
COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
MENUS AND DIAGRAMS IN ADVANCED SET UP MODE
LEROY-SOMER
3871 en - 2011.05 / h
5.7.2 - Explanation of parameters in menu 6
: 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
02.04
.
One second after the stop, the drive is "ready".
Ramp + DC (2) (
):
Stop on deceleration ramp with DC
injection for an imposed period of time.
The drive decelerates the motor according to the deceleration
mode chosen in parameter
02.04
.
When zero frequency is reached, the drive injects DC with a
magnitude which can be set in parameter
06.06
for a time
defined by parameter
06.07
.
The drive is "ready".
DC to 0 (3) (
):
Stop by braking by low frequency current
injection, then DC injection 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 with a magnitude which can be set
in parameter
06.06
for a time defined by parameter
06.07
.
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
defined by parameter
06.06
for a time defined by parameter
06.07
. No run command can be taken into account until the
drive is "ready".
Note:
In closed loop mode (
), the stop modes Ramp + DC
(2), DC to 0 (3) and Timed DC (4) are equivalent to the stop
mode Ramp (1).
: Not used
06.01
Motor
speed
t
Time
Freewheel stop time
Stop
Motor
speed
t
Time
Deceleration
ramp
1sec
Stop
Motor
speed
Motor
c
u
rrent
t
Time
Deceleration
ramp
Stop
DC
injection
Motor c
u
rrent
06.06
06.07
Motor
speed
Motor
current
t
Time
Braked stop
Motor
Low frequency
current injection
Injection
CC
06.06
06.07
Stop
Motor
speed
Motor
c
u
rrent
t
Time
Braked stop
Motor
c
u
rrent
DC
injection
06.06
Stop
06.07
06.02