1-8 Electric Drives
and Controls
Bosch Rexroth AG PSI 6500.xxx 1070087059 / 02
Safety Instructions
1.6 Electrical Connection
DANGEROUS ELECTRICAL VOLTAGE
The line voltage causes considerable risks!
Improper handling may result in death, personal injury or material
damage.
For that reason, the electric connection may only be established
by an electrician.
The applicable safety regulations as well as the nominal and limit
values of all parts of the plant or system must be taken into consi-
deration.
DANGER
Danger of life through inappropriate EMERGENCY-STOP facili-
ties!
EMERGENCY-STOP facilities must be operative in all modes of the
system. Releasing the EMERGENCY-STOP facility must by no
means result in an uncontrolled restart of the system! First check
the EMERGENCY-STOP circuit, then switch the unit on!
DANGER
Error messages that fail to be evaluated or are evaluated impro-
perly may cause personal injury and material damage!
For instance, switching of a transformer temperature contact
(thermal switch, normally closed contact) must result in blo#king
of the connected control.
CAUTION
Connecting lines and signal lines must be laid so as to avoid nega-
tive effects on the function of the units through capacitive or in-
ductive interference!Interference is frequently coupled and de-
coupled in long cables.
Therefore, power and control cables must be routed separately.
The influence of interfering cables on cables susceptible to inter-
ference can be minimized by keeping the following distances:
> 100 mm if cables are run in parallel for < 10 m,
> 250 mm if cables are run in parallel for > 10 m.
The product should be mounted close to the welding systems so
as to avoid cable lengths of more than 25 m.
L In addition, please comply with all safety regulations regarding electrical
connections and the EMC of the system as a whole in the manuals of the
power supply units (see page 1-1).
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