Configuration
Function blocks
Internal motor control with vector control (MCTRL2)
8
8.2
8.2.7
8.2-70
EDSVF9333V EN 3.0-06/2005
Function procedure
0
1
5
2
3
4
C0036
9300vec089
Fig. 8.2-25 Signal sequence with DC injection braking
Actual speed value of the motor (e. g. MCTRL-NACT)
Controller output current (e. g . MCTRL-IACT)
Pulse inhibit (e. g. DCTRL-IMP)
Activating DC injection braking (MCTRL-GSB)
DC injection braking is active (MCTRL-GSB-OUT)
MCTRL-GSB-OUT = HIGH: Function is active
MCTRL-GSB-OUT = LOW: Function is not active
c The m otor rotates with the preset speed. The current adjusts itself as a
function of the load .
d DC injection braking is activated w ith MCTRL-GSB = HIGH. Pulse inhibit
is set. The motor coasts.
e The pulse inhibit is deactivated and the DC braking current set in C0036 is
injected
f DC injection braking is deactivated w ith MCTRL-GSB = LOW
The motor is accelerated to speed setpoint at the set acceleration ramp and
is kept there.
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