Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 99)

Function library
Acceleration, deceleration, braking, stopping
7−28
L
EDB82MV752 EN 5.2
)
Note!
Quick stop can also be activated when using the function "fail−safe change of the
direction of rotation".
( ^ 7−28)
In addition to the free configuration under C0410 you can also use the fixed
assignment under C0007 to combine the function with a digital input.
Via keypad:
Assign the key with the quick stop function (C0469 = 2):
– s activates quick stop
–
u restarts the drive
7.5.3 Change of 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 with 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:
·
LOW = CW rotation
·
HIGH = CCW rotation
)
Note!
In case of open circuit or failure of the external control voltage, the drive may
reverse the direction of rotation.