2.13
Switch-on/-off behaviour
The diagram below illustrates the correct functional sequence for switching the servo
amplifier on and off.
2.13.1
Stop function as per EN 60204 (VDE 0113)
If a fault occurs (
ð
p.60), the output stage of the servo amplifier is switched off and the
BTB/RTO contact is opened. In addition, a global error signal can be given out at one of
the digital outputs (terminals X3/8 and X3/9) (see the
Online help
in the setup software).
These signals can be used by the higher-level control to terminate the current PLC cycle
or to shut down the drive (through an additional brake or similar means).
Instruments with a selected
Brake
function use a special sequence for switching off the
output stage (
ð
p.18). The
Stop
functions are defined in EN 60204 (VDE 0113), Paras.
9.2.2 and 9.2.5.3.
Categories of
Stop
functions
Category 0:
Shut down by immediate switch-off of the supply of energy to the
drive machinery (i.e. an uncontrolled shut-down)
Category 1:
A controlled shut-down, during which the supply of energy to the
drive machinery is maintained to perform the shut-down, and where
the supply is only interrupted when standstill has been reached
Category 2:
A controlled shut-down, where the supply of energy to the drive
machinery is maintained
Every machine must be equipped with a
Stop
function to Category 0.
Categories 1 and/or 2 must be provided if the safety or functional requirements of the
machine make this necessary.
Implementation of the Stop function :
You can find wiring recommendations in our application note
“Stop and Emergency Stop functions with SERVOSTAR”
20
SERVO
STAR
®
400 Installation Manual
Technical description
07/05
Kollmorgen
