Sentinel Press Brake Guarding System Operation Manual
LS-CS-M-066
Page 12
Original Language Version: 1.06
Released:
03/07/2019
3.9
Tool Set-up Mode (optional)
Tool Set-up mode is similar to Field Muted mode, but as well as deactivating optical protection
and restricting the machine to safe speed, it also disables motion monitoring. This is provided
to allow operation of the machine during tool setup and referencing procedures without the
Sentinel system raising unnecessary error conditions.
All cautions and restrictions applied to Field Muted mode (see
Section 3.7
) should also be
exercised in Tool Set-up mode. Tool Set-up Mode is only required for some models of press
brakes.
Warning: NO OPTICAL PROTECTION IN TOOL SET-UP MODE
In Tool Set-up Mode, all optical guarding is deactivated. Although the Sentinel
Press Brake Guarding System ensures that the machine does not exceed safe
speed in this mode, particular caution must still be exercised.
3.10
Light Curtain Mode (Optional)
The Sentinel system also supports dual guarding, where a third party light curtain can be
connected to the PGS-2. This gives the machine operator an option to select either the laser
guarding function or light curtain function. When in Light Curtain Mode the Sentinel continues
to control the mute, speed and stop time monitoring functions.
Warning: REFER TO THE LIGHT CURTAIN MANUFACTURER’S
DOCUMENTATION BEFORE OPERATING LIGHT CURTAIN MODE
The light curtain is a third party device and is not manufactured or supplied by
Lazer Safe. Please ensure that the light curtain is installed and configured
according to the manufacturer’s instructions. Ensure the machine operator has
been trained and is fully conversant in the operation and function of the light
curtain prior to operating the Sentinel Press Brake Guarding System in Light
Curtain Mode.
3.11
Mute Mode - Restricted (Optional)
The Sentinel System may be installed on machines that do not support dual speed operation.
However, if these machines cannot close tools at safe speed, any condition that requires safe
speed will trigger an over speed error, and an E-Stop.
In this case the system must be installed with the Mute Mode Restricted option enabled. Any
condition that would normally allow closing tools in safe speed (for example, an uncleared
obstruction) is prohibited. Tools must be opened, and the condition that is forcing safe speed
cleared before normal operation can continue.
3.12
Tool Change
When changing the tools the transmitter and receiver can be easily moved clear so that the
punch can be removed from either end of the machine. To realign the transmitter and
receiver, each is moved quickly back into position. The laser is adjusted to the correct
distance from the punch tip with the aid of an alignment tool.
Figure 3-8: Receiver Adjustment After tool Change
