PROGRAMMING
SINUS K
MANUAL
38/
226
3.9.2.
DC
B
RAKING AT
S
TART
Set C81 (IFD SW) or C71 (VTC SW) to [YES] to activate this function.
DC braking is activated sending a START (or REV) command with a frequency/speed reference other than zero and
before the acceleration ramp is performed. Depending on the equipment control mode, DC braking at start can be
obtained:
– sending a START command (terminal 7) via terminal board (or through the terminal set as REV);
– using one of the digital inputs programmed as multifrequency/multispeed;
– controlling the equipment run via keypad.
Figure 17: Output frequency/speed and braking DC current when the DC BRAKING AT START function is active.
Use the following parameters to program this function:
C81 (IFD SW) or C71 (VTC SW): function enabling;
C83 (IFD SW) or C73 (VTC SW): braking time;
C85 (IFD SW) or C75 (VTC SW): braking current intensity.