Configuration
Function blocks
Internal motor control with vector control (MCTRL2)
8
8.2
8.2.7
8.2-69
EDSVF9333V EN 3.0-06/2005
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 i njected.
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 m ust 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
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