two series of safety light
curtains (active optoelectronic protective devices) are
designed for human protection and product/machine safety where risks cannot be
eliminated by machine design and the process might require frequent and open
access during operation.
The YBB-14 series has a 14 mm sensing resolution for
finger-size protection and an operating distance of up to 3.5 m; protective
heights range from 142 to 1,045 mm. The YBB-30 light curtains series has a 30
mm sensing resolution for hand protection and an operating distance of up to 12
m; protective heights range from 279 to 1,827 mm.
All safety light curtains
have Type 4 and Cat 4 PL e safety ratings and are IP65 rated. Light curtain
sender prices start at $250.00 and receiver prices start at $275.00. Mounting
brackets are included with each unit and additional mounting accessories and
protective columns are available.
AutomationDirect has also added a line of machine
switches to detect unsafe conditions and isolate power.
Normally-closed contacts are used for a positive break and redundant
normally-closed contact and normally-open feedback outputs are available. The
safety switches cannot be easily defeated and all units have CE, UL and CSA
approvals. Four bases are available: 30 mm plastic, 50 mm zinc alloy, 40
aluminum and 60 mm aluminum. Four types of interlocks are available for common
safety applications including tongue (key), shaft hinge, lever hinge interlocks
and pull cord actuators with reset for emergency stop or without reset for
simple stop. Safety interlock switches start at $15.00 and safety limit
switches start at $12.75.
The Industrial Internet of Things may be going off the deep end in connecting everything on the plant floor. Some machines, bearings, or conveyors simply donít need to be monitored -- even if they can be.
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