REXROTH PSG Serie Betriebsanleitung Seite 132

132 Bosch Rexroth AG
Assembly
When delivered, the transformers have already been prepared for the
"direct PE conductor connection" protective measure (to EN 62135-1).
For this purpose, the PE connection is connected to the negative pole of
the secondary circuit through a detachable protective conductor jum­
per.
The PE connection is always connected internally to the transformer
housing and cannot be removed.
The protective measure used is dependent on the respective applica­
tion.
The machine/plant supplier/operator is responsible for selection,
realization and functional testing.
" Make sure that only cables or flexible cords of a sufficient core size
are used for making the connections.
Connect the transformer's protective conductor terminal (PE) to a
"
suitable grounding point.
Install the suitable protective measure in accordance with the cir­
"
cumstances of the plant.
If the protective conductor jumper is removed or replaced by a
"
ground fault protection resistor, this condition has to be indicated in
an indelible manner on the transformer's circuit diagram.
" If the protective conductor jumper is used, a test according to Sec­
tion 7.2.3.1 on page 133 et seq. has to be performed.
Check whether or not circulating currents are present. Also refer to
"
Section 7.2.3.2 on page 134 et seq.
If the ground fault protection resistor is used, a test according to Sec­
"
tion 7.2.3.3 on page 136 et seq. has to be performed.
PSG xxxx | 1070087062 / 08