Defender Press Brake Guarding System Operation Manual
LS-CS-M-069
Page 26
Original Language Version: 1.04
Released:
01/04/2020
Before performing the overrun test check the following.
•
Open the tools to a minimum opening of 100mm.
•
Check that the transmitter and receiver are correctly aligned.
•
Check the laser to punch distance.
•
Check that the receiver sensors are clear (see the LZS-1 receiver, the PGS-2 front
panel, or the Sensor window of the Defender User Interface Panel).
Note:
Refer to
Section 3
for detailed information regarding alignment and laser to
punch settings.
To commence the test, press the foot pedal as indicated in the Action window. The first foot
pedal press performs a test on the laser guards, and alerts the operator that the system is
changing to Normal mode, as shown in
MENU
MODE
SELECT
TOOL
SETUP
SET
INFO
ACTION RELEASE FOOT PEDAL
Mode change
4225
A
STATUS
STD
Figure 6-3: Mode Change Status Message
Release and press the foot pedal again. The press beam will start closing in high speed, and
then automatically stop after a short distance. Depending upon the way the Sentinel has been
configured the test will be performed after 20mm, 50mm or 70mm of high speed travel. When
the test is complete the operator will be prompted to release the pedal:
Overrun test PASS
–
RELEASE FOOT PEDAL
.
Note:
After the start-up test is complete it may be necessary to reset the machine
emergency stop circuit and/or restart the hydraulic pump.
The overrun test will be repeated every power up, every 24 hours of continuous machine
operation, or if the system detects that the stopping performance has deteriorated
significantly during normal operation.
6.3
Setting the Mute Point
After the start-up test is complete, the operator will be prompted to set the mute point by the
message
SET MUTE POINT
–
PRESS FOOT PEDAL.
The Defender panel
must be in the Main
screen to access the
SET
button.
Place a piece of sample material on the die which is the same thickness as the work piece.
The Defender system will use this material to calculate the correct position of the mute point
by traveling down, and halting at the point where the laser guards detect the material.
