1.11.2 Emergency Stop strategies
The Emergency Stop function is defined in EN 60204 (VDE 0113), Para. 9.2.5.4.
Implementation of the Emergency Stop function :
You can find wiring recommendations in our application note
“Stop and Emergency Stop functions with SERVOSTAR 600”
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
short-circuited by resistors connected in a star configuration.
Category 1:
If hazardous conditions can result from an emergency stop switch-off with an unbraked
run-down, 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 shut-down 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 servoamplifier.
In the normal situation, only the supply power is switched off in a safe manner.
The 24V auxiliary supply remains switched on.
SERVOSTAR
®
601...620 Installation Manual 23
Kollmorgen 03/04 General