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Introduction
The GuardShield Safe 4 family of safety light curtains are general
purpose presence sensing devices, designed for use on hazardous
machinery providing point of operation (POC), as well as, perimeter
access (PAC) detection.
It is a self-contained, two box, Type 4 ESPE (Electro Sensitive Protective
Equipment).
The GuardShield Safe 4 is offered in a number of configurations based
on a standard Type 4 safety light curtain platform.
In addition to the standard GuardShield Safe 4 POC and Safe4 PAC, the
GuardShield Safe 4 are offered in special configurations described in the
appendix at the back of this instructions.
These installation instructions are designed
IMPORTANT
to address the technical personnel of the
machine manufacturer and or the installer of
the safety system regarding the proper
mounting, configuration, electrical
installation, commissioning, operation and
maintenance of the GuardShield Safe 4 safety
light curtain. These installation instructions
do not provide instruction for the operation
of machinery to which the GuardShield Safe
4 safety light curtain is, or will be, integrated.
Only qualified personnel should install this
equipment.
Safety Precautions
Principles for Safe Use and Symbols Used
The following instructions are preventive warnings to ensure the safe and
proper operation of the GuardShield Safe 4 light curtains. These
instructions are an essential part of the safety precautions and therefore
have to be observed at any time.
Throughout this manual we use the labels ATTENTION and
IMPORTANT to alert you to the following:
ATTENTION
Failure to observe may result in dangerous operation
ATTENTION: Identifies information about
practices of circumstances that can lead to personal injury or death,
property damage, or economic loss.
ATTENTION helps you
• Identify a hazard
• Avoid a hazard
• Recognize the consequences
IMPORTANT: Identifies information that is especially important for
successful application and understanding of the product.
R
ATTENTION
ATTENTION
Additional mechanical protective devices have to be
installed in a way that hazardous machine elements cannot
be reached without passing through the protective field.
The GuardShield Safe 4 has to be installed in a way that
operators can only operate within the sensing area.
Improper installation can result in serious injury.
Never connect the outputs to +24V DC. If the outputs are
connected to +24V DC, they are in ON-state and cannot stop
hazardous spots at the machine/application.
Never expose the GuardShield Safe 4 to flammable or
explosive gases.
Regular safety inspections are imperative (see maintenance).
Do not repair or modify the GuardShield Safe 4. The
GuardShield Safe 4 safety light curtain is not field repairable
and can only be repaired at the factory. Removal of either of
the GuardShield Safe 4 endcaps will void the warranty terms
of this product.
Specialist Personnel
The GuardShield Safe 4 safety light curtain must be installed,
commissioned and serviced only by a qualified person. A qualified
person is defined as a person who:
• Has undergone the appropriate technical training
and
• Who has been instructed by the responsible machine operator in
the operation of the machine and the currently valid safety
guidelines
and
• Who has read and has ongoing access to these installation
instructions
Range of Uses of the Device
The GuardShield Safe 4 safety light curtain is classified as electro-
sensitive protective equipment (ESPE). The physical resolution of the
POC is 14 mm (0.55 in.) or 30 mm (1.18 in.). The maximum protective
field width of GuardShield Safe 4 POC is:
• 0...9 m (29.5 ft) for the 14 mm (0.55 in.) resolution,
• 0...18 m (59.1 ft) for the 30 mm (1.18 in.) resolution
• 5...30 m (16.4...98.4 ft) for the 30 mm (1.18 in.) resolution
Original instructions
GuardShield™ Safe 4 Safety Light Curtain User Manual
Potentially hazardous situation, which, if not
prevented, might lead to serious or deadly
injury.
Failure to observe may result in dangerous
operation.
The GuardShield Safe 4 must not be used
with machines that cannot be stopped
electrically in an emergency.
The safety distance between the GuardShield
Safe 4 and a dangerous machine movement
has to be maintained at all times.
3
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