Safety evaluation – Pinnacle Systems STTS User Manual

Page 29

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23

SAFETY EVALUATION

Before releasing an installation for production, test the safety system on a daily basis or whenever a

change or modification to the operation is made. Record and verify all tests and examinations.

Check that the floor and environmental conditions are suitable for the device(s) in use.

Check that the minimum safety distances are used in accordance to draft EN999 contained within this

operation and installation manual. This is required for all installations going into the EC (European

Community).

Check that the pressure-sensitive mat or pressure-sensitive floor is fastened (fixed) securely in place

and does not provide a trip hazard.

Ensure that any "dead zones" do not provide an access path to the hazardous zone or area.

Check that the removal of the power supply from the pressure-sensitive mat or pressure-sensitive

floor prevents further operation of the machine. The machine should not be capable of being reactivated

until power has been restored and the reset operated.

Check that a hazardous movement or cycle is prevented while an actuating force is applied to the

effective sensing area.

Ensure that additional safeguards have been provided where necessary to prevent access to the

dangerous parts of machinery from any direction not protected by the pressure sensitive mat or pressure

sensitive floor.

Check that the presence of a person between the danger zone and the sensor is prevented. If this is

not possible, ensure that further safety measures are taken.

Check that all indicator lamps/lights are functioning correctly.

Check the sensitivity of the mat or floor over the whole effective sensing area.

The adequate safety required for a machine depends on the safety integrity of the interface between

the machine and its protective device(s). Where a category is stated by a "C" standard of a risk

assessment, the checks should ensure the machine control circuits and the connections to the safety

device(s) are in accordance with the interface connections agreed between the machine control

manufacturer and the safety protective device manufacturer. Always meet or exceed OSHA, ANSI, and

RIA safety standards.

Where muting is provided, ensure that muting occurs only during the intended part of the machines'

operation (e.g., during the cycle where no hazard exists). Refer to the applicable standard: OSHA CFR

1910.217, ANSI B11.1-2001, ANSI B11.19-2003, EN954-1, or the updated versions of these standards

for the application.

Do not release the subject machine for production unless all of the above items are met or exceeded.

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