1070080029 / 05
Bosch Rexroth AG
Electric Drives
and Controls
PST 6xx0
|
|
262
/330
Assembly
7.2
Electrical connection of the product
"
Please note the safety instructions relevant for electrical connection
in Section 2.6.4 starting on page 184 and in Sect. 3.3 starting on
page 196.
"
Make sure that all respective plant sections are deenergized before
and during the electrical connection work.
"
Make sure that the required conditions for electrical connection are
complied with. Refer to Section 15 starting on page 309.
The maximum possible connection crosssections and tightening
torques for mains and transformer cables are provided there.
7.2.1
Interference suppression
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.
∼
GND
+
MP
Diode, suitable for small DC voltage re
lays
RC element for AC voltage relays and
AC motors
DIODE
RC ELEMENT
GND
+
DI-ZD attenuation element for large DC voltage con
tactors and defined dropout times
RC element for spark quenching with
inductive load
DIODE AND ZENER DIODE
RC ELEMENT
Fig.32:
Noise suppression examples
The following table serves as an example only. The rating of the ne
cessary components depends on the actual load situation.
ENGLISH
Summary of Contents for Rexroth PST 6 0 Series
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