Pro-face SP5000 Series Hardware Manual page 10

In the event the screen cannot be properly read, for example, if the backlight is not functioning, it
may be difficult or impossible to identify a function. Functions that may present a hazard if not
immediately executed, such as a fuel shut-off, must be provided independently of this product. The
machine's control system design must take into account the possibility of the backlight no longer
functioning and the operator being unable to control the machine or making mistakes in the control
of the machine.
LOSS OF CONTROL
The designer of any control scheme must consider the potential failure modes of control paths

and, for certain critical control functions, provide a means to achieve a safe state during and
after a path failure. Examples of critical control functions are emergency stop and overtravel
stop, power outage and restart.
Separate or redundant control paths must be provided for critical control functions.

System control paths may include communication links. Consideration must be given to the

implications of unanticipated transmission delays or failures of the link.
Observe all accident prevention regulations and local safety guidelines.

Each implementation of this product must be individually and thoroughly tested for proper

operation before being placed into service.
The machine control system design must take into account the possibility of the backlight no

longer functioning and the operator being unable to control the machine, or making errors in
the control of the machine.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
For additional information, refer to NEMA ICS 1.1 (latest edition), "Safety Guidelines for the
Application, Installation, and Maintenance of Solid State Control" and to NEMA ICS 7.1 (latest
edition), "Safety Standards for Construction and Guide for Selection, Installation and Operation of
Adjustable-Speed Drive Systems" or their equivalent governing your particular location.
NOTE: Open Box is a highly configurable device and is not based on a real-time operating system.
Changes to the software and settings of the following must be considered new implementations as
discussed in the previous warning messages. Examples of such changes include:
System BIOS

Operating System

Installed hardware

Installed software

UNINTENDED EQUIPMENT OPERATION
The application of this product requires expertise in the design and programming of control
systems. Only persons with such expertise should be allowed to program, install, alter, and apply
this product.
Follow all local and national safety standards.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
10
WARNING
WARNING