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Rockwell Automation Publication 445L-IN005A-EN-P - May 2018
GuardShield Micro 400 Safety Light Curtains
Micro 400 System
The Micro 400 requires a dedicated controller, either an MSR41, which
has ON/OFF functionality or an MSR42, which offers advanced
functionality of fixed and floating blanking, manual restart and muting.
The MSR42 can also be used as a multifunction safety module, which
allows the connection of additional safety light curtains, safety laser
scanner — any safety device with PNP type outputs.
The Micro 400 transmitter and receiver are offered with 8-pin M12
connectors at the end of 500 mm (20 in.) pigtail cables. The two
patchcords to connect the transmitter and receiver to the controller are
the same part number and are offered in various lengths. These
patchcords are configured on one end with M12 connectors, which
mate to the integrated pigtail connectors of the light curtain. The RJ45
connectors on the opposite end are plugged into to the MSR 41 or
MSR42 controllers.
Micro 400 Cascading
The GuardShield Micro 400 is also offered in a cascadable
configuration. GuardShield Cascadable Micro 400 safety light curtains
allow the interconnection of multiple segments of the Micro 400 safety
light curtain with a common pair of safety outputs. The cascadable
configurability of the GuardShield Micro 400 reduces overall system
wiring. It allows the series connection of multiple protective fields, for
example, the front and the backside of an application or a combined
horizontal and vertical protection area.
A GuardShield Cascadable Micro 400 safety light curtain system is
composed of one or two pair of Cascadable Micro 400 light curtains.
And a standard Micro 400 pair is the last segment pair in the cascaded
system.
GuardShield Micro 400 cascaded pairs are offered in both 14 mm
(0.55 in.) and 30 mm (1.18 in.) resolutions in limited protected heights.
It is possible to mix 14 mm (0.55 in.) and 30 mm (1.18 in.) resolution
pairs in a Cascaded Micro 400 system.
A cascadable pair of GuardShield Micro 400 light curtains has two
500 mm (20 in.) pigtails at each stick with a female (bottom) and a male
(top) M12 quick disconnect.
The GuardShield Cascadable Micro 400 system operates as one light
curtain pair with a common set of OSSDs. Each segment pair is
connected in series. The complete system response time is the sum of
each segment pair, plus the response time of the MSR41 or MSR42 and
other safety devices in the stop circuit.
When connecting two cascadable segments together, the resultant cable
length between segments is 1000 mm (40 in.).
If an additional length between segment pairs is required, M12
patchcords in 1 m, 3 m, and 5 m (3
.3 f
t, 9.8 ft, and 16.4 ft) lengths
(445L-AC8PC1 or 445L-AC8PC3) are offered.
Micro 400 Washdown Option
The GuardShield Micro 400 is offered with the transmitter and receiver
that is sealed in clear polycarbonate tubes with an environmental rating
of IP69K. These IP69K Micro 400 light curtains are factory sealed and
are ordered as pairs. They are offered in a 14 mm (0.55 in.) resolution in
protected heights from 150…1200 mm (5.9…47.2 in.).
The required MSR41 or MSR42 controllers maintain the IP20 rating
and must be mounted in a suitable enclosure.
The Micro 400 IP69K transmitter and receiver are both offered with
8-pin M12 connectors at the end of 500 mm (20 in.) integrated cables.
The patchcords to connect the transmitter and receiver to the controller
are offered in 1 m, 2 m, 3 m, 5 m, and 8 m (3.3 ft, 6.6 ft, 9.8 ft, 16.4 ft,
and 26.2 ft) lengths.
These patchcords are configured on one end with M12 connectors for
the light curtain pigtail and RJ45 connectors on the opposite end for
the MSR42 or MSR41 controller.
Micro 400 Specials
In addition to the standard GuardShield Micro 400 configurations, the
GuardShield Micro 400 is also offered in special configurations as
described in the Appendix.
The GuardShield Micro 400 safety light curtains are general-purpose
presence sensing devices, providing point of operation (POC) and
perimeter (PAC) detection.
IMPORTANT
The standard GuardShield Micro 400 must always be the last
segment in a Cascaded Micro 400 system.
IMPORTANT
The maximum Cascaded Micro 400 system length cannot
exceed 10 m (32.8 ft). This distance is measured between the
RJ45 connection at the MSR 41 or MSR 42 Controller to the last
beam in the standard Micro 400 (including all cable lengths).
The maximum number of beams in a cascaded Micro 400
system cannot exceed 255 beams.
IMPORTANT
These installation instructions are designed to address the
technical personnel of the machine manufacturer and or the
installer of the safety system. These instructions describe the
proper mounting, configuration, electrical installation,
commissioning, operation, and maintenance of the
GuardShield Micro 400 safety light curtain. These installation
instructions do not provide instruction for the operation of
machinery to which the GuardShield Micro 400 safety light
curtain is integrated. Only qualified personnel can install this
equipment.