Dc Brake - Siemens MICROMASTER 440 Operating Instructions Manual

6 Commissioning
6.4.18.4

DC brake

BI: Enabling the DC brake
P1230 = ...
This enables DC braking using a signal that was used from an external source. The
function remains active as long as the external input signal is active. DC braking causes
the motor to quickly stop by injecting a DC current
BI: Enable DC brk.
P1230.C
(0:0)
DC braking active
r0053
Bit00
Note: DC brake can be applied in drive states r0002 = 1, 4, 5
P1232 =... DC braking current (entered in %)
Defines level of DC current in [%] relative to rated motor current (P0305).
Duration of DC braking (entered in s)
P1233 =...
Defines duration for which DC injection braking is to be active following an OFF1 or OFF3
command.
1
OFF1/OFF3
OFF2
P1234
DC braking active
r0053
Bit00
58
1
0
⏐f⏐
f*
P0347
i
1
0
ON
⏐f⏐
1
0
DC braking
P0347
OFF2
DC braking
P1233
Issue 10/06
t
f_set
f_act
t
t
t
100 %
0 s
t
t t
t
t
MICROMASTER 440
Operating Instructions (Compact)