REXROTH MKD025A-144, Manual, Page: 23 / 184

Synchronous Motors MKD Safety Instructions for Electric Drives and Controls
3-7
DOK-MOTOR*-MKD*******-PR07-EN-P Version7.0 19.05.2004
3.7 Protection Against Dangerous Movements
Dangerous movements can be caused by faulty control of the connected
motors. 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 errors
Dangerous movements can occur immediately after equipment is
switched on or even after an unspecified time of trouble-free operation.
The monitoring in the drive components will normally be sufficient to
avoid faulty operation in the connected drives. Regarding personal
safety, especially the danger of bodily injury and material damage, this
alone cannot be relied upon to ensure complete safety. Until the
integrated monitoring functions become effective, it must be assumed in
any case that faulty drive movements will occur. The extent of faulty
drive movements depends upon the type of control and the state of
operation.