SINUS-K
PROGRAMMING
MANUAL
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226
3.9.4.
DC
B
RAKING
H
OLDING
(IFD
SW
ONLY
)
Set parameter C86 to [YES] to activate this function. Once the motor stops due to DC braking, direct current keeps
being applied to the motor. DC intensity is equal to the value set in C87. This ensures a continuous motor braking;
current flowing in the motor windings also determines a rise in temperature, thus avoiding condensation.
Fig. 19 shows the output frequency and braking DC when this function is activated. Holding direct current activates
after the injection of direct current both via terminal board and through the DC braking at stop function.
Use the following parameters to program this function:
C86: function enabling;
C87: intensity of the holding direct current.
t
f/n
O N
O F F
I
DC
=C85
I
DC
=C87
t
DC
t
DCB
ON
Figure 19: Output frequency and braking DC when the DC braking holding function is active