3 608 878 300 Tightening Technology | Bosch Rexroth AG 27/641
System 350 | 3 608 878 300/2019-03
Fig. 2–3: Safety warning sticker on card rack (BT) and system box (SB)
2.6.2 Protective extra-low voltage for protection against electric shock
All connections and terminals with voltages of 5 to 50 V on Rexroth products are protective extra-low
voltages which are designed to be safe to touch in accordance with the product standards.
2.6.3 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 operating for an
indefinite time.
WARNING
Dangerous voltage inside device!
Danger to life, risk of injury due to electric shock!
Switch the device off.
Disconnect the device from the mains supply.
Compact System (CS):
Before opening the device or starting maintenance work, wait at least 90 seconds for the device
to discharge.
Card rack (BT) and system box (SB):
Before opening the device or starting maintenance work, wait at least 10 seconds for the device
to discharge.
Before starting maintenance work, make sure you read and understand these operating
instructions.
WARNING
High voltage due to improper connection!
Danger to life, risk of injury due to electric shock!
Only devices, electrical components, and cables with protective extra-low voltage (PELV) may be
connected to connections and terminals with voltages of 0 to 50 V.
Only connect voltages and electric circuits that are safely isolated from dangerous voltages. Safe
isolation is obtained by means of isolating transformers, safe optocouplers, or battery operation
disconnected from the mains.
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