KEYENCE GL-RHG Series - Manual (Page 57)

3-2 Safety Distances
3-9 GL-RHG-M-NO3-E
In
sta
llatio
n
to
a Mac
h
in
e
3
z Safety light curtain installation position
(for machine press)
A : Slide adjustment amount
S : Length of strokes
H
D
: Die height
H
D
- A : Minimum die height
D : Safety distance
Gap : 75mm or less
(If the length exceeds 75 mm, an additional
guard, etc. must be installed.)
Top optical axis position: Height of slide bottom surface at
slide's highest position
If the height of slide bottom surface
at slide's highest position from FL
is less than 1400mm, the position
is 1400mm. (Longer than S + H
D
)
If it is more than 1700mm, the posi-
tion is 1700mm. (Shorter than S + H
D
)
Safety light curtain protection height: S + H
D
From the bolster top surface to the slide bottom surface at slide's
highest position
Bottom optical axis position: Height of bolster top surface
z Example for supplemental GL-RHG installation
It is recommended to make series connection in case
where supplemental GL-RHG is used for additional pro-
tection. Series connection can prevent light interference.
"Series connection" (page 2-3)
(1) Install GL-RHG so that the gap between main unit
and sub unit must be 75mm or less and the gap
between sub unit and front edge of the bolster.
(2) Install sub unit almost horizontally at the waist height
of operator.
For details, refer to the "Management guideline of press
machine safety device" (Ministry of Health, Labour and Welfare
No. 446-2 of July 9, 1993) and "Application of amendments of a
part of the standard for the mechanical structure of power
press and a part of the structural standard of press machine
safety device and shearing machine safety device" (Ministry of
Health, Labour and Welfare No. 0218-3 of February 18, 2011).
„ Example 5 When using GL-RHG as safety device for shearing machine (paper cut-
ting machine) in Japan
Safety distance calculation according to the Construction standard for press machine and shear-
ing machine safety device
Make sure to observe the following according to the Construction standard for press machine and shearing
machine safety device (Notification of Ministry of Health, Labour and Welfare No. 102, September 21, 1978).
•
When the safety distance exceeds 270 mm, be sure to install the supplementary axis between the main
optical axis and the blade. The safety distance in this context means the horizontal distance between the
vertical plane including the optical axis of GL-RHG and dangerous zone (hazard source).
• The height of the optical axis from the table surface of shearing machine (paper cutting machine) must
be 67% or less of safety distance and 180 mm or less.
D
A
S
S
A
H D - A
H D
Top optical
axis position
Bottom optical
axis position
Gap
FL
Bolster
Slide
Main unit
Connection cable
Sub unit
Bolster
75 mm
or less
75 mm
or less
Length with which an operator can enter
Waist
height
DANGER
When using a supplementary axis, install the supplementary axis according to the above
descriptions so that the user of machine does not stand between the machine and GL-RHG or enter
the danger zone of machine by detouring the protection area of GL-RHG. Failure to observe this
warning may result in extremely dangerous situations including death or serious injury of users.