LS-CS-M0005-EN
LZS-003-HS Operation Manual – Dual Laser Version
Page 4
Version 1.11
Released: 03/12/2007
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The Lazer Safe LZS-003-HS is a guarding system for hydraulic press brakes that provides a
highly effective solution for both operator safety and machine productivity.
The system comprises the following components:
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LZS-003-HS Controller
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Operator Panel
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Optical Encoder
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Laser Transmitter / Receiver pair
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Brackets for mounting the Transmitter and Receiver
The LZS-003-HS can be installed either at the time of manufacture or as a retrofit to a press
brake already in service.
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Delivers comprehensive operator protection at
close proximity to work piece.
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Allows tools to close at high speed, increasing
productivity.
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Complex shapes can be achieved with the "Tray /
Box" and "Field Muted" modes of operation.
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Encoder feedback provides closed-loop monitoring
of speed and stopping distance of the press beam.
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A flat band of continuous laser light detects
obstructions as small as 4mm while remaining
vibration tolerant.
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The mute point is automatically determined, easily
set and continuously monitored.
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The rear section of laser is easily muted to ignore the back gauge in "up-close" situations.
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Failure detection is performed by real-time monitoring of the process under control.
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The transmitter and receiver are mounted on the upper beam of the press brake, allowing the
operator to remain close to the work-piece as the tools close at high speed. Hands and fingers
are protected by a continuous band of laser light that senses the zone below the punch. If an
obstruction is detected the beam movement is stopped. The punch cannot make contact with
the obstruction.
The LZS-003-HS system continuously monitors the critical speeds and stopping distance of the
moving member of the machine. If the crawl speed is exceeded and / or the stopping distance
is exceeded, the LZS-003-HS controller will issue a stop command to the machine. There is no
need for a separate stopping distance monitor.
3.2.1
LZS-003-HS High Speed Dual Laser Model
For press brakes with a high closing speed (150 mm / sec or faster) the LZS-003-HS is
recommended (Figure 3-1). This model features a transmitter with two parallel lasers that are
4mm and 14mm below the punch. The lower laser (laser B) triggers the deceleration of the
press to bending speed while the higher laser (laser A) continues to provide protection.
The LZS provides protection at close
proximity to work-piece.
