Pro-face PS-4000B Series, User Manual

Page: 10 / 138

PS-4000B Series User Manual
10
Product Related Information
PS-B units are certified for use in Class I, Division 2 hazardous locations as defined
in ANSI/ISA 12.12.01 or CSA C22.2 N

213. Observe the following:
NOTE: PS-B 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

System Monitor

Operating system

Installed hardware

Installed software
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH

Remove all power from the device before removing any covers or elements of
the system, and prior to installing or removing any accessories, hardware, or
cables.

Unplug the power cable from both the PS-B unit and the power supply.

Always use a properly rated voltage sensing device to confirm power is off.

Replace and secure all covers or elements of the system before applying power
to the unit.

Use only 24 Vdc when operating the PS-B unit.
Failure to follow these instructions will result in death or serious injury.
WARNING
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.

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.
*1

Each implementation of a PS-B unit must be individually and thoroughly tested
for proper operation before being placed into service.
*1
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 Con-
struction and Guide for Selection, Installation and Operation of Adjustable-
Speed Drive Systems
" or other applicable standards in your location.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.