SmartPAC 2 with WPC Integration 1126800
Excerpts from OSHA Regulations and ANSI Standards Appendix A page 435
Extracts from ANSI B11.1-2001 8.5.3
Standard Requirements Explanatory Information
stands outside of the horizontal sensing field.
The sensing field should be located so that the
operator cannot reach the point of operation
prior to interrupting the sensing field and
completion of the stopping action. Where
possible, the sensing field should be of
sufficient depth to prevent the operator from
standing between the field and the point of
operation. See also, Annex C.
8.5.3.17 If the position of the device will allow
the operator or others to place themselves
between the sensing field and the point of
operation, additional means shall be provided in
conjunction with the device to prevent the
operator or others from exposure to the point-of-
operation hazard.
E8.5.3.17 Additional means may include
manual reset outside of the sensing field of the
device, or additional barrier guards, safety mats,
light curtains, or other devices.
Operator controls for each operator located
outside of the sensing field of the presence-
sensing device may be used.
8.5.3.18 The device shall not be affected by
ambient light or by light-source decay so that
the increase in response time or object
sensitivity is greater than the value used to
calculate the safety distance.
E8.5.3.18 Examples of ambient light are
associated with windows, light fixtures,
skylights, bay doors, or die lights.
8.5.3.19 All areas of entry to the point of
operation not protected by the presence-sensing
device shall be otherwise safeguarded.
E8.5.3.19 Usually the electro-optical
presence-sensing devise is used in a manner
that provides a protected zone in front of the
primary work area with auxiliary devices or
guards used to protect secondary access areas.
In some cases, mirrors may be used in
conjunction with the device to provide tow-,
three- or four-sided protection.
8.5.3.21 When a device is used on a press
production system in a SINGLE-STROKE
mode, and the protection of the operator is
dependent upon the stopping action of the press,
a stopping-performance monitor shall be
required in compliance with 6.9.
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