Lenze EVF9333−xV - Manual (Page 332)

Configuration
Function blocks
Internal motor control with vector control (MCTRL2)
8
8.2
8.2.7
l
8.2−70 EDSVF9333V EN 6.2−04/2012
ƒ After a signal, the motor is braked by injecting a DC current.
ƒ Braking in generator mode must be used for controlled brake ramps.
ƒ The hold time (C0107) has no influence. The motor remains braked
until MCTRL−GSB is set to LOW.
)
Note!
Manual DC injection braking has priority over quick stop.
Special features of vector control with feedback
ƒ If the DC braking current (C0036)
£ than the motor magnetising current,
the motor magnetising current is injected.
ƒ If the DC braking current (C0036)
> than the motor magnetising current,
the DC braking current is injected.
Setting
Selection Code Description
DC braking current C0036 DC braking current with which the motor is braked
(
Stop!
An excessive DC braking current and braking time can thermally
overload the motor. Special care must be taken when using
self−ventilated motors.
Activation
The input MCTRL−GSB in the function block MCTRL is triggered with HIGH
level.
ƒ MCTRL−GSB = HIGH: Function is activated
ƒ MCTRL−GSB = LOW: Function is not activated
Manual DC injection braking