Wintriss Shadow VI, User Manual

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1107200 Shadow VI User Manual
page 98 Appendix A Excerpts from OSHA Regulations and
ANSI Standards
Daily Tests in French and English
Extracts from ANSI B11.1-2009 8.6.2.1
Standards Requirements Explanatory Information
8.6.2.1.7 Each operator’s hand controls shall
be located at a distance from the point-of-
operation so that the operator(s) cannot release
either hand actuating control and reach into the
point-of-operation during the hazardous portion
of the cycle.
E8.6.2.1.7 The total stopping time of the press
should include the total response time of the
control system and the time it takes hazardous
motion to stop. The following formula should
be used when calculating the safety distance
(
Ds ):
Ds = K (Ts + Tc + Tbm)
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 control.
Tbm = the additional time allowed by the
stopping-performance monitor (brake monitor)
before it detects stop time deterioration.
NOTE - Ts + Tc are usually measured by a
stop time measuring device.
When the press stopping-performance monitor
setting is changed, the safety distance should
be recalculated. See also Annex C.