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7 General
7.13.2
Emergency Stop strategies
The Emergency Stop function is defined in EN 60204 (VDE 0113), Para. 9.2.5.4.
You can find wiring recommendations in our application note "Stop and Emergency Stop
functions with PMCtendo DD4".
7.13.2.1
Category 0
The controller is switched to "disable", the electrical supply (400VAC) is disconnected. The drive
must be held by an electromagnetic holding device (brake).
In multiaxis systems with connected DC-link bus (intermediate circuit) the motor leads have to be
disconnected by a changeover switch (contactor, e.g. Siemens 3RT1516-1BB40) and shortcircuited
by resistors connected in a star configuration
7.13.2.2
Category 1
If hazardous conditions can result from an emergency stop switch-off with an unbraked rundown,
then the drive can be switched off by a controlled shut-down.
Stop Category 1 permits electromotive braking with a switch-off when zero speed has been
reached.
Safe shutdown can be achieved, when the loss of the mains supply is not rated as a fault and the
control takes over the disabling of the PMCprimo Drive2.
In the normal situation, only the supply power is switched off in a safe manner.
The 24V auxiliary supply remains switched on.
Installation manual PMCprimo Drive2
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