Siemens SINAMICS S110 - Fig. 2-71 2704 - Extended brake control, zero-speed detection (r0108.14 = 1)

Brake control
Function diagrams
2-831
© Siemens AG 2012 All Rights Reserved SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
Fig. 2-71 2704 – Extended brake control, zero-speed detection (r0108.14 = 1)
- 2704 -
Function diagram
87654321
fp_2704_98_eng.vsd
DO: SERVO
SINAMICS S110
30.09.11 V04.04.00
Braking control - Extended braking control, zero-speed detection (r0108.14 = 1)
T0
<2>
0.000...300.000 [s]
p1227 (4.000)
0.000...10.000 [s]
p1228 (0.000)
&
T0
(0)
p1224[1]
Standstill threshold
(r0063)0
p1225
<2>
0.000...300.000 [s]
p1276 (300.000)
1
0
1
0
p1275.02 (0)
p1275.03 (0)
Brake, threshold value
fallen below
r1229.7
Brake,
monitoring
time expired
r1229.8
(0)
p1224[2]
(0)
p1224[3]
r0063
n_act smooth
r0060
n_set before filt.
[4710.6]
[5020.4]
n_stop n_thresh
0.0...210 000.0 [rpm]
p1226 (20.0)
OFF1 present
OFF3 present
Close brake from standstill detection
<2> For p1276 = 300.000 s, the timer is deactivated, i.e. the timer output is always 0. Note: When operating a
motor with a brake which must not be applied while the motor is rotating, the monitoring time of both timers
must be set to 300 s.
<1> Shutdown threshold of the standstill detection. In this case (e.g. when using a brake), another criterion than the
speed actual value can be selected to clear the pulses. Otherwise, we recommend to keep the factory setting.
<1>
1
0
1
-1
0
1
<3>
<3> For operation without brake, p1224[0...3] must be 0 (factory setting) in order to avoid undesirable interaction
with the sequence control.
[2707.1]
[2711.1]
Background
Refer to [1020.7]
T0
SET
(Q=1)
Q
RESET
(Q=0)
Q
1
(0)
Brk close standstill
p1224[0]
<4> The internal signal comprises signals that lead to OFF1 or OFF3, e.g. BICO or fault response.
<4>