![Rockwell Automation Allen-Bradley 140M User Manual Download Page 179](http://html.mh-extra.com/html/rockwell-automation/allen-bradley-140m/allen-bradley-140m_user-manual_1475383179.webp)
Rockwell Automation Publication 450L-UM001F-EN-P - March 2022
179
Appendix A Specifications
Weld Shields
Figure 193 - Weld Shield Dimensions
The GuardShield™ safety light curtain weld shields are sold in the same lengths
as the protective field heights of the GuardShield safety light curtains. These
polycarbonate weld shields are designed as disposable devices whose purpose
is to help protect the front window of the GuardShield safety light curtain from
damage.
One weld shield reduces the operation range by approximately 10%. For a 450L
safety light curtain with finger resolution with a weld shield that is installed on
each stick, the maximum range of operation reduces to: 7.0 m (22.97 ft) x 90% x
90% = 5.67 m (18.61 ft). The installation of the weld shields does not affect the
minimum operation range.
The weld shield is supplied with precut Velcro® tape strips. Position the strips
on the front window and attach the weld shields. Additional information about
the weld shields is provided in the publication
).
Cables
Depending on the plug-in, an M12 5-pin or a M12 8-pin connection cable is
required to connect a transceiver stick.
Connection cables (also commonly referred to as cordsets) have an M12 plug
(concave) at one end and the other end is free wires.
Extension cables (also commonly referred to as patchcords or interconnection
cables) have one M12 plug at each end. They can be used to extend the length of
the connection cables or can be used to extend the cascading distance. Only the
M12 5-pin patchcords can be used to connect a safety light curtain directly to a
GuardShield safety light curtain ArmorBlock® module.
lists cables that are required for connecting a light curtain stick (cable
color black). Check
ab.rockwellautomation.com/Connection-Devices/DC-
for additional lengths and/or cable jacket
colors.
Table 83 - Weld Shield Kits
Description
Cat. No.
Weld Shield Kit, two pieces per kit Safety Light Curtain, Length xxxx mm [xxxx: 0150…1950 mm
(5.9…76.77 in.) in 0150 mm (5.9 in.) increments]
450L-AW-xxxx
29
(1.14)
"L"
38.1 (±0.5)
(1.5 ±0.02)
12.7 (±0.5)
(0.5 ±0.02)
2X R1.6 (0.06)
2X R4.6 (0.18)
Highly polished transparent surface on both sides
Table 84 - Connection Cables (Cordsets and Patchcords); Unshielded; Color: Black
Description
Cat. No.
Concave M12 5-pin
(1)
(1)
Replace the
x
with 2 (2 m [6.6 ft]), 5 (5 m [16.4 ft]), 10 (10 m [32.8 ft]), 15 (15 m [49.2 ft]), 20 (20 m [65.6 ft]), or 30 (30 m
[98.4 ft]) for desired length.
Concave M12 8-pin
No connector (cordset)
889D-F5BC-
x
889D-F8AB-
x
Convex M12 connector (patchcord)
889D-F5BCDM-
x
889D-F8ABDM-
x
(2)
(2) Use this cable to extend the cable length between cascades.