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3 609 929 255/2011-09
Bosch Rexroth AG
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Safety Instructions
EN
G
L
IS
H
2.6.3
Protective extra-low voltage
for protection against electric
shock
All connections and terminals with voltages
of 5 to 50 V on Rexroth products are pro-
tective extra-low voltages which are desig-
ned to be safe to touch in accordance with
the product standards.
2.6.4
Protection against dangerous
movements
Dangerous movements can be caused by
improper actuation of connected motors.
Causes can be any of the following:
• Careless or improper wiring
• Errors while operating the components
• Incorrect input of parameters prior to
commissioning
• Error in the measurement transducer or
signal transducer
• Defective components
• Software errors
These errors can occur immediately after
the system has been switched on or after an
indefinite operating time.
The monitoring devices in the drive compo-
nents almost completely eliminate malfunc-
tions in the connected drives. However, in
view of personal safety, especially that invol-
ving risk of injury and/or damage to equip-
ment, this alone is not sufficient. Until the in-
stalled monitoring devices reach full
effectivity, faulty drive movements, whose
magnitude depends on the controller type
and the operating condition, must be antici-
pated.
WARNING
High voltage due to improper con-
nection!
Danger to life, risk of injury due to elec-
tric shock!
X
Only devices, electrical components,
and cables with protective extra-low
voltage (PELV) may be connected to
connections and terminals with volta-
ges of 0 to 50 V.
X
Only connect voltages and electric
circuits that are safely isolated from
dangerous voltages. Safe isolation is
obtained by means of isolating trans-
formers, safe opto-couplers, or bat-
tery operation disconnected from the
mains.
