VCP25.1 Project Planning Manual - Bosch Rexroth

3-6 Bosch Rexroth AG | Electric Drives and Controls Rexroth IndraControl VCP 25 | R911299720 / 02Safety Instructions for Electric Drives and Controls3.7 Protection Against Dangerous MovementsDangerous movements can be caused by faulty control of the connectedmotors. Some common examples are:• improper or wrong wiring of cable connections• incorrect operation of the equipment components• wrong input of parameters before operation• malfunction of sensors, encoders and monitoring devices• defective components• software or firmware errorsDangerous movements can occur immediately after equipment isswitched on or even after an unspecified time of trouble-free operation.The monitoring in the drive components will normally be sufficient toavoid faulty operation in the connected drives. Regarding personalsafety, especially the danger of bodily injury and material damage, thisalone cannot be relied upon to ensure complete safety. Until the integratedmonitoring functions become effective, it must be assumed inany case that faulty drive movements will occur. The extent of faultydrive movements depends upon the type of control and the state ofoperation.DANGERDangerous movements! Danger to life, risk of injury, severe bodilyharm or material damage!• Ensure personal safety by means of qualified and tested higher-levelmonitoring devices or measures integrated in the installation. Unintendedmachine motion is possible if monitoring devices are disabled,bypassed or not activated.Pay attention to unintended machine motion or other malfunctionin any mode of operation.• Keep free and clear of the machine’s range of motion and movingparts. Possible measures to prevent people from accidentally enteringthe machine’s range of motion:– use safety fences– use safety guards– use protective coverings– install light curtains or light barriers