Control Of Laser Gate; Laser Gate Terminal Specifications - Panasonic LP-M Series Maintenance Manual

3-8 Control of Laser Gate

[Function specific to LP-Mxxx-S type]
The laser gate present in the head acts a shield from the laser beam.
„ Laser gate action overview
• The laser gate can open or close only by external I/O control. Construct a system for opening and closing the laser gate
using an external controller like the safety PLC.
• The laser gate can be controlled to open or close at any time regardless of the status or operation of the laser marker as
long as the laser marker is activated. (It can be controlled even when the laser marker is in a non-remote state.)
• Every time the laser marker is started, it is necessary to perform the point of origin recovery operation.
• Laser radiation is disabled when the laser gate is closed regardless of the operating mode of the laser marker.
Open the laser gate by controlling the external signal before marking in the test marking mode also.
• It is recommended to open and close the laser gate at each marking operation and confirm that the laser gate is working
normally by monitoring the laser gate close output.
• If the laser is shut off by using a laser gate, there is no need to use the shutter control or the laser stop signals on the
input terminal for safety purpose.

3-8-1 Laser gate terminal specifications

1 2 3 4 5 6 7
Laser marker side terminal
[Accessories] Laser gate terminal
Terminal
Signal
No.
1 OUT COM. 3
2 L-GATE CL OUT1
3 L-GATE CL OUT2
4 N.C.
5 IN COM. 3
6 L-GATE OP IN
7 L-GATE CL IN
DFK-MC1.5/7-GF-3.81
FK-MCP1.5/7-STF-3.81
Description
Output common for laser
gate
Laser gate close output 1
Laser gate close output 2
Not connected
Input common for laser
gate
Laser gate open input
Laser gate close input
ME-LPM-SSM-10
Manufactured by Phoenix Contact
Output common for the signal No. 2 and 3 in laser gate
terminal.
When the laser gate is closed, both L-GATE CL OUT 1 and
2 turn ON. This output can be used to monitor whether the
laser gate status is output normally or not.
The output signal should be checked periodically.
During both of these output signals are ON status, "LG CL
OUT" LEDs on the back side of the controller light up.
Do not connect externally.
Input common for the signal No. 6 and 7 in laser gate
terminal.
The laser gate opens when it detects the Input ON to OFF
edge.
The origin point recovery starts when it turns ON
simultaneously with L-GATE CL IN of Terminal No. 7.
During this input is ON status, "LG OP IN" LED on the back
side of the controller lights up.
The laser gate closes when it detects the Input ON to OFF
edge.
The origin point recovery starts when it turns ON
simultaneously with L-GATE OP IN of Terminal No. 6.
During this input is ON status, "LG CL IN" LED on the back
side of the controller lights up.
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