Manual

0098441113480, V2.00, 03.2011
SD315O 2 Before you begin - safety information
Drive for stepper motors 15
2.4 Basic information
@ WARNING
LOSS OF CONTROL
• The designer of any control scheme must consider the potential
failure modes of control paths and, for certain critical functions,
provide a means to achieve a safe state during and after a path
failure. Examples of critical control functions are emergency stop,
overtravel stop, power outage and restart.
• Separate or redundant control paths must be provided for critical
functions.
• System control paths may include communication links. Consid-
eration must be given to the implication of unanticipated transmis-
sion delays or failures of the link.
• Observe all accident prevention regulations and local safety
guidelines.
1)
• Each implementation of the product must be individually and thor-
oughly tested for proper operation before being placed into serv-
ice.
Failure to follow these instructions can result in death or serious
injury.
1) For USA: Additional information, refer to NEMA ICS 1.1 (latest edition), “Safety
Guidelines for the Application, Installation, and Maintenance of Solid State Con-
trol” and to NEMA ICS 7.1 (latest edition), “Safety Standards for Construction and
Guide for Selection, Installation and Operation of Adjustable-Speed Drive Sys-
tems”.
@ WARNING
UNEXPECTED BEHAVIOR AND DESTRUCTION OF SYSTEM COMPO-
NENTS
When you work on the wiring and when you unplug or plug in connec-
tors, this may cause unexpected behavior and destruction of system
components.
• Switch the power supply off before working on the wiring.
Failure to follow these instructions can result in death, serious
injury or equipment damage.