Honeywell SmartPAC 2 User Manual page 455

SmartPAC 2 with WPC Integration
Extracts from ANSI B11.1-2001 8.5.3
Standard Requirements
8.5.3.11 The device shall be provided with a
means that visibly indicates when it is
functioning properly. The device shall also
indicate which sections, if any, have been
blanked out and whether floating blanking
features are in use.
8.5.3.12 The device shall not fail to respond to
the presence of the individual's hand or other
body part due to the presence of a reflective
object or workpiece.
8.5.3.13 The device shall conform to the
requirements of 6.8 (and 8.7). in the event of a
power failure to the device, the device shall
initiate a stop command to the press control
system.
8.5.3.14 The interface of the presence-sensing
device to the press control shall conform to the
requirements of 6.8 (and 8.7).
8.5.3.15 The sensitivity of the device to
intrusion shall not be adversely affected by
changing conditions around the press.
8.5.3.16 The effective sensing field of the
device shall be located at distance from the
nearest point-of-operation hazard so that
individuals cannot reach the point of operation
with a hand or other body part before cessation
of motion during the hazardous portion of the
cycle (stroke).
Excerpts from OSHA Regulations and ANSI Standards
Explanatory Information
E8.5.3.11 Red and green indicator lamps or
other means that can easily be seen by the
operator and others should be used to indicate
that the device is bypassed.
For radio frequency devices, it is useful to
observe a display such as a meter or signal lamp
to indicate the degree of penetration as an aid to
set-up and shaping of the field as well as the
separate signal to indicate intrusion resulting in
a STOP command.
E8.5.3.15 Some devices can be affected by
changes in the conditions around the press
production system such as the placement of
parts and tote boxes, grounding conditions or
the operator, or the movement of forklift trucks.
E8.5.3.16 The total stopping time of the press
should include the total response time of the
presence-sensing device, as stated by the
supplier, the response time of the interface, the
response time of the control system, and the
rime it takes the press to cease slide motion.
The following formula should be used when
calculating the safety distance:
Ds = K (T s + T c + T r + T bm) + D pf
Appendix A
1126800
page 433