7 General
Page
26
Installation manual PMCprimo Drive2
7.13
Switch-on and switch-off behaviour
The diagram below illustrates the correct functional sequence for switching the PMCprimo Drive2
on and off.
7.13.1
Stop function to EN 60204 (VDE 0113)
If a fault occurs (
⇒
S. 81) ) the output stage of the PMCprimo Drive2 is switched off and the
BTB/RTO contact is opened. Instruments which are equipped with a selected “Brake” function use
a special sequence for switching off the output stage (
⇒
S. 49).
The -AS- option can be used to switch off the drive via a positive-action (BG-approved) safety relay,
so that personnel safety is ensured at the drive shaft.
The stop functions are defined in EN 60204 (VDE 0113), Para. 9.2.2, 9.2.5.3.
There are three categories of stop functions:
Category 0
:
Shut down by immediately switching off 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 energy
supply
is
only
interrupted
when the shut-down has been completed;
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. Stop functions to Categories 1
and/or 2 must be provided if the safety or functional requirements of the machine make this
necessary.
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