Interference Suppression; Line Connection; Table 18: Rating Of Noise Suppression Equipment; Fig. 64: Noise Suppression Examples - Bosch Rexroth PSI 6 Series Operating Instructions Manual

360 / 460 Bosch Rexroth AG
Assembly
7.2.2

Interference suppression

+
Diode, suitable for small DC voltage re­
DIODE AND ZENER DIODE
+
DI-ZD attenuation element for large DC voltage con­
tactors and defined dropout times

Fig. 64: Noise suppression examples

7.2.3

Line connection

Noise is caused by switching peaks and can interfere with the timer di­
rectly or through coupling with connecting lines. Therefore, measures
must be taken to suppress noise.
" Eliminate all noise at its very source. Where this is not possible, the
noise suppression elements must be attached as close as possible
to the source of noise.
" First make sure that proper noise suppression is available for all
components containing inductive elements or switchgear.
" Noise suppression equipment must be installed resistant to fracture
because strong vibration may occur on machines.
DIODE
GND
lays
GND
The following table serves as an example only. The rating of the ne­
cessary components depends on the actual load situation.
Table 18: Rating of noise suppression equipment
24 V
DC
48 V
DC
110 V 220 Ohm / 1 W
AC
220 V 220 Ohm / 5 W
AC
440 V 220 Ohm / 5 W
AC
RC ELEMENT
∼
RC element for AC voltage relays and
AC motors
RC ELEMENT
RC element for spark quenching with
inductive load
Resistor Capacitor
- -
- -
0.5 uF 400/600 V
0.1 uF 500 V
0.1 uF 1000 V
PSI 6xxx | 1070080028 / 08
MP
Diode
1 N 5060/ZL 12
1 N 5060/ZL 22