81
ADVANCED PARAMETER-SETTING MODE
Commissioning manual Powerdrive MD2/FX
4617 en - 2017.09 / e
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 Ramp + DC (2), Zero speed DC
(3) and Timed DC (4) stop modes are equivalent to the Ramp
(1) stop mode.
06.02
: Not used
06.03
: Mains loss mode
Adjustment range : No detection (0), Full stop (1),
Delayed stop (2)
Factory setting : No detection (0)
Format: 8 bits
No detection (0):
The drive does not take account of mains supply breaks and
continues to operate while there is sufficient voltage in the DC
bus.
CAUTION:
The «Full stop (1)» and «Delayed stop (2)» cases can only
work correctly if the energy stored in the application is more
than the energy to be provided during the mains loss.
Eligible applications: ventilation, centrifuging, etc.
Full stop (1):
If there is a mains supply break, the drive will decelerate on a
ramp, which is automatically calculated by the drive, so that the
motor feeds back the energy to the DC bus. When normal
conditions return, deceleration continues until the motor stops,
according to the stop mode programmed in
06.01
.
The drive trips on «Mains loss».
Delayed stop (2):
If there is a Mains trip (see
06.60
) or a mains supply break, the
drive will decelerate on a ramp, which is automatically
calculated by the drive, so that the motor feeds back the energy
to the DC bus.
When normal conditions return:
- If the duration of the mains loss is less than parameter
06.62
«Delay before mains loss», the motor reaccelerates up to the
reference speed.
- If the duration of the mains loss is greater than parameter
06.62
«Delay before mains loss», deceleration continues in
freewheel mode. The drive trips on «Mains loss».
NB:
See also parameter
18.70
Motor
speed
Motor
current
t
Time
Braked stop
Motor
current
DC injection
06.06
Stop
06.07
DC bus
voltage
Bus undervoltage
threshold
Mains loss
Drive output
bridge interlock
DC bus
voltage
Mains
supply break
Motor speed
Delay before
mains loss
(
06.62
)
DC bus
voltage
Mains
supply break
Motor
speed
Delay before
mains loss
(
06.62
)
Summary of Contents for LEROY-SOMER Powerdrive FX
Page 1: ...4647 en 2017 09 e Powerdrive MD2 FX Commissioning manual R f rence...
Page 41: ...41 QUICK SETUP MODE Commissioning manual Powerdrive MD2 FX 4617 en 2017 09 e Notes...
Page 174: ...174 MAINTENANCE Commissioning manual Powerdrive MD2 FX 4617 en 2017 09 e Notes...
Page 175: ...175 MAINTENANCE Commissioning manual Powerdrive MD2 FX 4617 en 2017 09 e Notes...
