Lenze E82xVxxxKxxxxx - Manual (Page 291)

Function library
Acceleration, deceleration, braking, stopping
Changing the direction of rotation
10
l
291 EDS82EV903 EN 3.0
10.6.3 Changing the direction of rotation
Description
Change of direction of motor rotation via digital control signals. Only the main setpoint is
changed.
The direction of rotation can be changed in a fail−safe or non−fail−safe way. Depending on
the type of change−over, the controller brakes the motor to 0 Hz along the deceleration
ramp or quick stop ramp in order to accelerate the motor along the acceleration ramp in
the other direction of rotation.
The reversing time depends on the ramp times set for the main setpoint or quick stop.
Non−fail−safe change of the direction of rotation
Link C0410/3 to a digital signal source.
If the direction of rotation is changed, the drive brakes along the deceleration ramp
(C0013) and accelerates along the acceleration ramp (C0012) in the other direction or
rotation.
Direction of rotation with in−phase connection and HIGH active signal:
ƒ LOW = CW rotation
ƒ HIGH = CCW rotation
)
Note!
In case of open circuit or failure of the external control voltage, the drive may
reverse the direction of rotation.
Fail−safe change of the direction of rotation
Link C0410/22 and C0410/23 with one digital signal source each.
If the direction of rotation is changed, the drive brakes along the quick stop ramp (C0105)
and accelerates along the acceleration ramp (C0012) in the other direction or rotation.
Direction of rotation with in−phase connection and HIGH active signal:
Direction of rotation Signal level at Notes
C0410/22
(DCTRL1−CW/QSP) C0410/23
(DCTRL1−CCW/QSP)
CCW rotation LOW HIGH
CW rotation HIGH LOW
Quick stop LOW LOW
Unchanged HIGH HIGH l During operation: The direction of
rotation results from the signal which
was active first.
l When switching on the mains: The
controller activates quick stop (QSP).
)
Note!
In addition to the free configuration in C0410 you can also use the fixed
assignment in C0007 to link the "change direction of rotation" function with a
digital input.