Wintriss Shadow VI, User Manual

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1107200 Shadow VI User Manual
page 102 Appendix A Excerpts from OSHA Regulations and
ANSI Standards
Daily Tests in French and English
Extracts from ANSI B11.1-2009 8.6.3
Standards Requirements Explanatory Information
8.6.3.13 The device shall conform to the
requirements of 6.11 and 8.8. In the event of a
power failure to the device, the device shall
initiate a stop command to the press control
system.
8.6.3.14 The interface of the presence-sensing
device to the press control shall conform to the
requirements of 6.11 and 8.8.
8.6.3.15 The sensitivity of the device to
intrusion shall not be adversely affected by
changing conditions around the press.
8.6.3.16 The effective sensing field of the
device shall be located at distance from the
nearest point-of-operation hazard so that
individuals cannot reach into the point of
operation with a hand or other body part before
cessation of motion during the hazardous
portion of the cycle.
E8.6.3.16 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
time it takes the press to cease slide motion.
The following formula should be used when
calculating the safety distance:
Ds = K (Ts + Tc + Tr + Tbm) + Dpf
where
K = 63 inches/second (hand speed constant)
Ts
= the stop time of the press measured from
the final de-energized control element, usually
the air valve.
Tc = the response time of the press control.
Tr = the response time of the presence-sensing
device and its interface, if any, as stated by the
supplier or measured by the user.
Tbm = the additional stopping time allowed by
the stopping-performance monitor before it
detects stop time deterioration.
Dpf = the added distance due to the penetration
factor as recommended in ANSI B11.19, Annex
D, Figure D.2. The minimum object sensitivity is
stated by the supplier. If beam blankouts or
floating window features are used, these figures
should be added to the object sensitivity figure
before using the chart.