Manual

18 3-phase stepper motor
2 Before you begin - safety information BRS3
0198441113730, V2.02, 03.2011
@ WARNING
MOVEMENT WITHOUT BRAKING EFFECT
If power outage or errors cause the power stage to be switched off, the
motor is no longer decelerated in a controlled way and may cause
damage. Overload or errors can cause hazards due to the failure of
the holding brake. Incorrect use of the holding brake results in prema-
ture wear and failure.
• Secure the hazardous area so it cannot be accessed.
• Verify the function of the holding brake at regular intervals.
• Do not use the holding brake as a service brake.
• If necessary, use a cushioned mechanical stop or a suitable serv-
ice brake.
Failure to follow these instructions can result in death, serious
injury or equipment damage.
@ 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”.