Siemens SINAMICS S120 Manual De Listas página 2535

Line frequency monitoring
Line supply frequency
p0211 (50 Hz)
(110 %)
p0284
f_line smoothed
[8950.4] r0066[1]
(90 %)
p0285
Change from
"ready"
to
"operation"
[8932.4]
Fault for more than 20
attempts
<1> For p3400.0 = 1, function diagram [8864] applies.
1 2
DO: A_INF
Active Infeed - Signals and monitoring functions, line frequency and Vdc monit. (p3400.0 = 0)
≥1
Repeat the line supply
synchronization when
switching-in the pulses
III
> 20
3 4
DC link monitoring p0280
Vdc setpoint
r0088
[8940.4]
Vdc Vdc V_upper_thresh
r0297
Vdc_act
r0070
[8950.1]
Vdc V_lower_thresh
r0296
+
Vdc offs A thresh
p0279
+
Precharging monitoring for the DC link
p0857
Energize line contactor
T 0
r0863.1
[8938.5]
&
Precharging completed
r0899.11
[8926.7]
5 6
fp_8964_55_eng.vsd
09.11.18 V05.02.03
p0115[3]
<1>
7 8
Function diagram
- 8964 -
SINAMICS S120/S150