Danger, Setup conditions – KEYENCE SL-V Series User Manual
Page 105
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System Configuration for the Muting Function
3-29
In
3
SL-V-M-NO3-E
The following is an example of the muted condition while the mold is going upward or at the top dead
center of the operation. In this example, 2 switches are used as the muting devices.
The SL-V has not undergone the model certification examination in accordance with Article
44-2 of the Japanese Industrial Safety and Health Law. The SL-V, therefore, cannot be used in
Japan as a “Safety Device for Press and Shearing machines” as established in Article 42 of
that law.
Setup conditions
All 4 of the following conditions must be met in order to ensure the continuous muted condition while the
mold is going upward or at the top dead center.
L (mm) : The length of a part of cam that switch can be ON
D (mm) : The spacing between switches
V (mm/s) : Cam speed
The activation time of muting input 1 and that of muting input 2 must be between 0.04 to 3 seconds.
(1) 0.04 < D / V < 3
(2) D < L
(3) Both switch A1 and switch A2 must be ON only while the mold is going upward or at top dead center.
(4) The total time the mold is going upward and the time while it is at the top dead center must be 5 min-
utes or less.
Example: Muting function with 2 muting devices (Switches)
Danger
D
V
L
Switch A2
Switch A1
Cam
Switches A1 and A2
must be N.O.