Typically, in industry, an Emergency stop does not remove power from actuators, but rather removes the source of voltage that energizes power relays. As 3 phase is a common power source, it would be inefficient and dangerous to route it through the required 'E' stop locations. 'Control' voltages are what are switched with 'E' stops.Hello,
An emergency stop switch is ment to disconnect the power.
It must also be locking, so no direct switch on is possible.
See this page for more info:
Often is not desirable to remove power from a PLC/embedded/HMI. Emergency stops will remove the I/0 source voltage, but not disrupt controls, clocks,networks, etc.it should be in series with the MAIN POWER of your project. You want it to shut off ALL power to the circuits.
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by Ikimi .O