Other Safety Considerations
Machine Safety
In order to protect personnel from any safety hazards in the machine or system, the
machine/system builder must perform a "Risk Assessment", which is often based on the ISO
13849 standard. The design/implementation of barriers, emergency stop (E-stop)
mechanisms and other safeguards will be driven by the Risk Assessment and the safety
standards specified by the governing authority (for example, ISO, OSHA, UL, etc.) for the
locale where the machine is being installed and operated. The methodology and details of
such an assessment are beyond the scope of this manual. However, there are various sources
of Risk Assessment information available in print and on the internet.
NOTE:
The following list is an example of items that would be evaluated when
performing the Risk Assessment. Additional items may be required. The safeguards
must ensure the safety of all personnel who may come in contact with or be in the
vicinity of the machine.
In general, the machine/system safeguards must:
l
Provide a barrier to prevent unauthorized entry or access to the machine or system. The
barrier must be designed so that personnel cannot reach into any identified danger
zones.
l
Position the control panel so that it is outside the barrier area but located for an
unrestricted view of the moving mechanism. The control panel must include an E-stop
mechanism. Buttons that start the machine must be protected from accidental
activation.
l
Provide E-stop mechanisms located at the control panel and at other points around the
perimeter of the barrier that will stop all machine movement when tripped.
l
Provide appropriate sensors and interlocks on gates or other points of entry into the
protected zone that will stop all machine movement when tripped.
l
Ensure that if a portable control/programming device is supplied (for example, a hand-
held operator/programmer pendant), the device is equipped with an E-stop mechanism.
NOTE:
A portable operation/programming device requires
many
additional
system design considerations and safeguards beyond those listed in this
section. For details, see the safety standards specified by the governing
authority (for example, ISO, OSHA, UL, etc.) for the locale where the
machine is being installed and operated.
l
Prevent contact with moving mechanisms (for example, arms, gears, belts, pulleys,
tooling, etc.).
l
Prevent contact with a part that is thrown from the machine tooling or other part-
handling equipment.
l
Prevent contact with any electrical, hydraulic, pneumatic, thermal, chemical or other
hazards that may be present at the machine.
l
Prevent unauthorized access to wiring and power-supply cabinets, electrical boxes, etc.
l
Provide a proper control system, program logic and error checking to ensure the safety
of all personnel and equipment (for example, to prevent a run-away condition). The
control system must be designed so that it does not automatically restart the
machine/system after a power failure.
l
Prevent unauthorized access or changes to the control system or software.
Moog Animatics Class 6 SmartMotor™ Ethernet Serial Encapsulation Guide, Rev. B
Page 7 of 32
Summary of Contents for Smart Motor SM23166MT
Page 31: ......
Page 32: ...PN SC80100017 001 Rev B Ethernet Serial Encapsulation ...
