Rockwell Automation Publication 445L-IN005A-EN-P - May 2018
3
GuardShield Micro 400 Safety Light Curtains
Important Requirements
The GuardShield Micro 400 requires a dedicated controller. The
MSR41 controller is used for on/off applications. The MSR42
controller can also be used as a multi-functional safety module, The
MSR42 allows these connections:
• Additional safety light curtains,
• Safety laser scanner,
• Safety devices with two Output Signal Switch Devices (OSSD)
outputs,
• Safety switch with two contacts (E-stops and enabling
switches).
There are a number of operating modes that can be configured with the
MSR42 controller. EDM, Start/Restart interlock, fixed and floating
blanking, and muting are possible.
Safety Precautions — Principles for Safe Use and
Symbols Used
The following instructions are preventive warnings to confirm the safe
and proper operation of the GuardShield Micro 400 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:
Specialist Personnel
A qualified person must install, commission, and service the
GuardShield Micro 400 safety light curtain. A qualified person is
defined as a person who:
• Has undergone the appropriate technical training
• The machine operator has been instructed in the operation of
the machine and the currently valid safety guidelines
• Has read and has ongoing access to these installation
instructions
Range of Uses of the Device
The GuardShield Micro 400 safety light curtain is classified as electro-
sensitive protective equipment (ESPE). It fulfills the requirements of a
Type 4 ESPE defined by IEC 61496-1 and CLC/TS 61496-2 and is,
therefore, allowed for use with controls in safety category Type 4 in
compliance with EN ISO 13849, SIL CL3 in accordance with
EN62061 or up to PLe in accordance with EN ISO 13849.
These devices are suitable for:
• Point of operation protection (finger and hand protection)
• Hazardous area protection
Access to the hazardous point must be allowed only through the
protective field. The machine/system is not allowed to start as long as
personnel are within the hazardous area. See the
Examples of Range of
Use on page 5
for an illustration of the protective modes.
Depending on the application, mechanical protection devices can be
required and the safety light curtain.
POC
The GuardShield Micro 400 POC is available in the following physical
resolutions:
• 14 mm (0.55 in.)
• 30 mm (1.18 in.).
The protective field height of standard GuardShield Micro 400 is
between 50 mm (1.97 in.) and 1200 mm (47.2 in.).
The maximum protective field width is 0…5 m (16.4 ft).
Cascadable Micro 400
The cascadable GuardShield Micro 400 POC is available in the
following physical resolutions:
• 14 mm (0.55 in.)
• 30 mm (1.18 in.).
The protective field height of cascadable GuardShield Micro 400 is
between 300 mm (11.82 in.) and 1200 mm (47.2 in.). The maximum
protective field width is 0…5 m (16.4 ft).
Micro 400 IP69K Option
The physical resolution of the GuardShield Micro 400 IP69K is 14 mm
(0.55 in.). The protective field height of GuardShield Micro 400 IP69K
is 300…1200 mm (11.8…47.2 in.). The maximum protective field width
is 0…5 m (16.4 ft).
ATTENTION:
Identifies information about practices or
circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard,
avoid a hazard, and recognize the consequences.
IMPORTANT
Identifies information that is critical for successful application
and understanding of the product.
ATTENTION:
The GuardShield Micro 400 must not be used with
machines that cannot be stopped electrically in an emergency.
The safety distance between the GuardShield Micro 400 and a
dangerous machine movement has to be maintained always.
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 Micro 400 has to be installed in a way that
operators can only access the hazard through the sensing field of
the Micro 400.
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 Micro 400 to flammable or explosive
gases.
Regular safety inspections are imperative (
Safety Instructions—
Maintenance on page 15
).