Technical data

PD_OpManPS-4_06_us.fm
ELAU AG PacDrive PS-4 / PD-8 page 41
6.1 Creation of a PacDrive PS-4/PD-8, SCL055 application
Hard-copy for correction
6 Project definition
6.1 Creation of a PacDrive PS-4/PD-8, SCL055 application
In addition to their use in normal industrial environments, the units
PacDrive PD-8 and PacDrive SCL-055 are also designed for
aseptic applications. Aseptic applications have special
requirements regarding the surface quality of devices and cables.
The figure below shows a PacDrive PS-4, PD-8, SCL-055
combination with an outline of possible fields of application.
Fig. 6-1: Overview of applications
6.2 PacDrive PS-4
6.2.1 Mains Connection of PacDrive PS-4
Switching on
When the mains voltage is switched on, the DC-circuit capacitors in
the PacDrive PS-4 are "gently" charged via the built-in bleeder
resistor.
The minimum time between to precharge procedures is 15 s.
Grounding conditions of the mains network
Grounded
rotary
current
networks
PacDrive PS-4s can be operated without potential separation on
rotary current networks with grounded star point.
ungrounded
rotary current
networks
In ungrounded networks (IT networks) or networks that are not
grounded in the star point, there is an increased risk of
impermissible excess voltages between the outer conductors and
the casing of the PacDrive servo amplifier.
For operations in such networks, we therefore prescribe a
separating transformer with a grounded star point on the output
side and a grounded PE connection of the PacDrive PS-4.
PD_Inb_Schalt_Übersicht.fh8
Range of
applications
PacDrive
PS-4
collector ring
(optional)
to further PD-8
PacDrive
PD-8
PacDrive
SCL
1) Standard environment
2) SCL in aseptic environment
3) SCL and PD-8 in aseptic environmnet
3)
2)
1), 2) E-MO-102
1), 2), 3) KA 99 037-XXX
3) E-MO-109
1), 2) E-MO-104
3) E-MO-110
1), 2), 3) KA 99 037-XXX
1) E-MO-101
2), 3) E-MO-105
Exp.
Exp.
Exp.