Sentinel Plus Press Brake Guarding System Operation Manual
LS-CS-M-073
Page 17
Original Language Version: 1.04
Released: 19/07/2017
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Figure 3-5: Tray/Box Mode Operation
If at any time the middle sensor is obstructed, the beam will stop and closing movement can
only be completed in safe speed. When either Tray/Box Mode is selected, all sensors are
active at the start of each cycle and the automatic muting of the front and rear sensors is as
described in
Sections 3.5.1- 3.5.2
.
3.5.1
Tray Mode - From a Stationary Position
If there is no obstruction to any of the guarded regions then the system operates as it does
in Normal Mode (refer
Section 3.4
). If the front and/or rear regions are obstructed when the
pedal is pressed, then the tools will not close and the message
Front/rear sensor blocked
–
RELEASE FOOT PEDAL
is displayed. The operator must release and press the pedal again,
at which point the system deactivates the front and rear regions and allows the tools to
close in high speed (the middle region
must
remain clear) until the bend is completed. If the
middle region is obstructed when the pedal is pressed then the tools will not close. The
operator must release and press the pedal again. The system will force the tools to close in
safe speed only with the optical protection muted and display the message
LASERS
INACTIVE
until the bend is completed. The guarded regions become active again once the
tools are opened.
3.5.2
Tray Mode - When the Tools are Closing
If there is no obstruction to any of the guarded regions then the system operates as it does
in Normal Mode (refer
Section 3.4
). If the front and/or rear regions are obstructed then the
tools will stop closing and the message
Front/rear sensor blocked
–
RELEASE FOOT PEDAL
is
displayed. The operator must release and press the pedal again, at which point the system
deactivates the front and rear regions and allows the tools to close in high speed (the
middle sensor must remain clear) until the bend is completed. If the middle sensor is
obstructed when the pedal is pressed then the system will force the tools to close in safe
speed only with the optical protection muted and display the message
LASERS INACTIVE
until the bend is completed. The guarded regions become active again once the tools are
opened.
3.5.3
Tray 2 Mode
Tray 2 mode is a variant of the standard Tray/Box mode. As in Tray/Box mode, the front
and rear regions of the guarding system are disabled, so that complex shapes can be bent.
The operation of Tray/Box 2 mode differs from standard Tray/Box mode in the following
details.
1. Before every stroke the operator must acknowledge that they are in Tray 2 mode.
The first pedal press does not close tools, but generates the message
TRAY 2
CONFIRM
–
RELEASE FOOT PEDAL
, alerting the operator that Tray 2 mode is
selected. This message will be displayed until the pedal is released. The operator
now has three seconds to press the foot pedal and perform the stroke.
2mm Mute
Point
