Rockwell Automation Allen-Bradley MobileView 2711T-VMBRACKET, User Manual

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16 Rockwell Automation Publication 2711T-UM001E-EN-P - March 2019
Chapter 2 Safety Precautions and Elements
General Safety It is important to follow the instructions in this document in all circumstances.
Failure to do so can result in potential sources of danger or the possible override
of safety features that are integrated in the terminal.
Besides the safety instructions in this document, you must also use safety
precautions and accident prevention measures that are appropriate to the
situation.
Proper care and handling contribute to MobileView terminal and junction box
safety. For more information on care and handling, see
Handle and Care for the
MobileView 2711T Terminal and IP65 Junction Box on page 88 .
Programmable Electronic Systems
ATTENTION: Consider or perform the following as part of general safety.
• Verify that interrupted processes can be properly restarted after power failures
or power dips. Do not allow any dangerous operating conditions to occur, even
temporarily.
• In situations where faults that occur within the automation system could cause
personal injury or significant damage to machinery and equipment, take extra
safety measures to confirm that the system remains in an acceptable operating
condition.
• When applying functional safety, restrict access to qualified, authorized
personnel who are trained and experienced.
• Verify that unauthorized persons are not allowed to adjust settings or make
memory modifications that can lead to dangerous situations.
• Test the functionality of the E-stop button and enabling switch at least once
every six months. Verify that the machine or plant operation stops when the
button is pushed.
• If the MobileView™ 2711T terminal and controller do not communicate with a
point-to-point connection, then keypad data could transmit with a delay. An
Ethernet switch that is used between the MobileView 2711T terminal and
controller is recommended for a higher speed connection.
• When a MobileView 2711T terminal has been exposed to shock (for example, it
is dropped on the ground), test to verify that the E-stop button and enabling
switch still function properly.
• The USB port on the backside of the MobileView 2711T terminal is only for
maintenance. Do not operate the terminal while a USB drive is connected to it.
• Risk assessment and risk reduction are important precautionary measures for
machine safety. For more information, see ISO 12100.
ATTENTION: Personnel responsible for the application of safety-related
Programmable Electronic Systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in using the
system.