3 608 870 A47 Tightening Technology | Bosch Rexroth AG 31/263
Nexo cordless Wi-Fi nutrunner | 3 608 870 A47/2017-05
2.7.3 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 in-
definite time.
The monitoring devices in the drive components almost completely eliminate malfunctions in the connect-
ed drives. However, in view of personal safety, especially that involving risk of injury and/or damage to
equipment, this alone is not sufficient. Until the installed monitoring devices become fully effective, faulty
drive movements, whose magnitude depends on the controller type and the operating condition, must be
anticipated.
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