Kollmorgen AKD PDMM series, User Manual

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AKD PDMM User Guide | 10.5.1.2 Emergency Stop
10.5.1.2 Emergency Stop
The Emergency Stop function is used for the fastest possible shutdown of the machine in a dangerous sit-
uation. The Emergency Stop function is defined by IEC 60204. Principles of emergency stop devices and
functional aspects are defined in ISO 13850.
The Emergency Stop function will be triggered by the manual actions of a single person. It must be fully
functional and available at all times. The user must understand instantly how to operate this mechanism
(without consulting references or instructions).
The Stop Category for the Emergency Stop must be determined by a
risk evaluation of the machine.
In addition to the requirements for stop, the Emergency Stop must fulfil the following requirements:
l
Emergency Stop must have priority over all other functions and controls in all operating modes.
l
The energy supply to any drive machinery that could cause dangerous situations must be switched off
as fast as possible, without causing any further hazards ( Stop Category 0) or must be controlled in
such a way, that any movement that causes danger, is stopped as fast as possible (Stop Category 1).
l
The reset must not initiate a restart.
10.5.1.3 Emergency Off
The Emergency Off function is used to switch-off the electrical power supply of the machine. This is done
to prevent users from any risk from electrical energy (for example electrical impact). Functional aspects
for Emergency Off are defined in IEC 60364-5-53.
The Emergency Off function will be triggered by the manual actions of a single person.
The result of a risk evaluation of the machine determines the necessity
for an Emergency Off function.
Emergency Off is done by switching off the supply energy by electro-mechanical switching devices. This
results in a category 0 stop. If this stop category is not possible in the application, then the Emergency Off
function must be replaced by other measures (for example by protection against direct touching).
70 Kollmorgen™ | December 2012