Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 90)

Function library
Selection of control mode, optimisation of operating behaviour
7−19
L
EDB82MV752 EN 5.2
)
Note!
l The flying−restart circuit must not be used if several motors with different rotating
masses are connected to a controller.
l The flying restart method is safe and reliable for drives with great rotating masses.
l With machines with low moments of inertia and small friction, the motor can
restart for a short time or reverse after controller enable.
·
The controller only searches the given direction of rotation.
·
The controller calculates the output frequency required for the current speed of the idling
motor, is connected and accelerates the motor until it reaches its setpoint.
Adding a signal (C0143 = 2, C0143 = 3)
The controller adds the output frequency corresponding to the frequency setpoint or the actual
process controller value.
)
Note!
The actual process controller value must only be set if a speed−proportional signal is
available in C0412/5!
Tip
If the flying−restart circuit is not required for every drive start, but only after mains reconnection:
·
Bridge X3/28 with HIGH level and start the controller with the function QSP" (C0142 = 3 and
C0106 = 0 s).
·
The flying−restart circuit is now only activated for for the first mains connection.
7.3.2 Controlled deceleration after mains failure/mains disconnection
)
Note!
This function cannot be used with a 8200 motec!