SmartPAC 2 with WPC 2000 Integration User Manual
1128600
Extracts from OSHA and ANSI
A-11
8.6.3.17
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.
E8.6.3.17
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.
As an alternative to the reset control and to
prevent an individual from stepping behind the
sensing field of a PSD, the maximum distance
between the light curtain and the machine
structure should not exceed 75mm (3 inches).
Supplemental safeguarding may be utilized to
eliminate a space greater than 75mm.
8.6.3.18
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.
E8.6.3.18
Examples of ambient light are
associated with windows, light fixtures,
skylights, bay doors, or die lights.
8.6.3.19
All areas of entry to the point-of-
operation not protected by the presence-
sensing device shall be otherwise safeguarded.
E8.6.3.19
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 two-,
three- or four-sided protection.
8.6.3.20
Press production systems with a
configuration that would allow an individual to
enter, pass through, and become clear of the
presence-sensing device sensing field shall not
be operated in the PSDI mode of operation.
E8.6.3.20
For PSDI applications see Clause 10.
8.6.3.21
When a device is used on a press
production system and the protection of the
operator is dependent upon the stopping action
of the press, a stopping-performance monitor
shall be required in conformance with 6.12. See
section 8.3.9 for exceptions.
Extracts from ANSI B11.1-2009 8.6.3
Standards Requirements
Explanatory Information
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