Pluto Safety PLCs Now with Analog Inputs

ABB Jokab Safety has expanded the range of Safety PLC modules with the Pluto D20, which features 4 safe analog inputs. The I/O configuration is the same as for the Pluto B20 with the added benefit that 4 of the inputs can be used as either ordinary safe inputs or as safe analog inputs 0-10V or 4-20mA.

This allows Pluto to be used in applications where proximity sensors, temperature sensors, pressure and flow sensor monitoring is required for the Category 4/SIL3 PLe protection of personal around hazardous machinery.  The key advantage of Pluto Safety PLCs over conventional Safety PLCs is that the Pluto modules can see each other’s inputs and outputs, enabling simple communication, programming and changes to the safety system.  More Information

Download Pluto Safety PLCs product Overview (PDF)
Download Pluto D20 fact sheet (PDF)
Watch video:  "Machine safety systems"
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Jokab Safeball™ Category 4 Two-Hand Control Device

The Jokab Safeball is a completely new approach to the design of one and two-hand safety devices. Safeball consists of a spherical ball containing two embedded push button switches, one on each side of the ball. By using this push button configuration, the risk of unintentional activation is minimized and the device is simple and ergonomic to use.

In the case where two-hand control is used, both Safeballs i.e. all four push buttons have to be activated within 0.5 seconds.

If one or more push buttons are released a Stop signal is given to the machine. In order to provide the highest level of safety the Safeball design provides the operator with a dual switching function and short circuit supervision in each hand. The design allows for comfort of use for all hand sizes and operation from numerous gripping positions.

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New Safety Publication from OSHA

A 60 page booklet recently published by the Occupational Health and Safety Administration presents an excellent overview of the need and application of machine safety guarding and electronic machine safety devices. The publication, titled “Safeguarding Equipment and Protecting Employees from Amputation”, provides a wealth of general information regarding the concept of machine safety and how the OSHA Standards apply.

Link to Booklet on OSHA Website