LINK Systems Max Presence Sensing Device - Manual (Page 36)

Link Lite Black Max Section 4 - Operating Instructions
4-3
required to prevent someone from reaching
the hazardous area from any normal
position associated with the employer
defined tasks of operators or other person-
nel other than through the Black Max
sensing field. These barriers must be
provided and used when necessary to
supplement the Black Max safeguarding
component.
4 . The required safety distance of item 2
may place the main Black Max sensing
field far enough away from the hazard that
a person can assume a normal working
position between the sensing field and the
hazard. A person in such a position can
reach into, or enter into, the hazardous area
without being detected by the main Black
Max sensing field, and the Black Max will
provide no protection if hazardous machine
action is started.
A physical barrier to prevent persons from
standing inside the main Black Max
sensing field or Black Max remote exten-
sion units oriented horizontally and
extending outward from the machine to
detect persons inside the main sensing field
and prevent normal machine action must be
used if every person operating or helping
with the production system doesn't have his
own set of active operator controls, located
on the other side of the main Black Max
sensing field, from the hazard. These
operator controls must be designed to be
operated concurrently with all other
operator controls to initiate machine
action.
5. Any task associated with a machine or
production system using a Black Max as a
safeguarding component that requires a
person to enter into the hazardous area so
that he is not protected by the Black Max
or other safeguarding components must be
done in accordance with OSHA's lock-
out/tagout regulations, CFR1910.147,
where all hazardous energy is locked out
on the machine or production system by
each person involved in the task. For
example, tool or die repairs or adjustments
in the machine and repair or adjustment of
parts transfer or other feeding systems
located in the hazardous area may cause
the person(s) doing these tasks to assume
positions or locations that aren't protected
by production mode safeguarding.
6. OSHA and ANSI standards permit
"muting" (bypassing the presence sensing
device stop signal) in the non-hazardous
portion of the cycle - such as the die
opening portion of the cycle - on linearly
stroking machines such as power presses
and press brakes. If the muting means is
improperly adjusted, the Black Max stop
signal may be bypassed during all or part of
the dangerous closing portion of the stroke.
WARNING! The Link Lite Black
Max will not protect a person in a
position between the sensing field and
the hazard. Serious injury or death
may be inflicted by the hazard if
machine or production system action is
started while a person is in such a
position.
WARNING! Repair, maintenance, or
production system corrective measures
or tasks that cause persons to enter the
hazardous area and assume positions or
locations so that they aren't protected
by the Black Max or other
safeguarding components must be
performed in accordance with OSHA's
CFR1910.147 lockout procedures.
Serious injury or death may result from
the machine or production system if
lockout procedures are not followed.