Lenze L-force HighLine C 8400 Series Reference Manual page 256

8400 HighLine C | Reference manual
Motor control (MCTRL)
Parameterisable additional functions
Auto DCB function during operation with speed feedback

Stop!
If the DC-injection braking operation is too long and the braking current or
braking voltage is too high, the connected motor may overheat.
If you want to use the auto DCB function contrary to our recommendation (see above), the
auto DCB threshold must not fall below the following values depending on the number of
encoder increments (C00420):
Number of encoder increments
C00420
8
16
32
64
> 128

How to set the automatic DC-injection braking
1. Set a hold time in
• Automatic DC-injection braking is active for the time set.
• In case of operation without speed feedback, the braking current set in
is injected.
• After the set hold time has expired, the controller sets a pulse inhibit.
2. Set the operating threshold in C00019.
• The operating threshold can serve to set a dead band in the setpoint. If DC-
injection braking is not to be active then,
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Auto DCB threshold C00019
16
8
4
2
No restrictions
C00106 > 0 s.
L
C00106 must be set to a value of "0".
Firmware ≤ 11.00 - DMS 6.0 EN - 10/2011
C00036