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7 General
7.11
Switch-on and switch-off behavior
The diagram below illustrates the correct functional sequence for switching the servo amplifier
on and off.
7.11.1
Stop function as per EN 60204 (VDE 0113)
If a fault occurs (
BTB/RTO contact is opened. In addition, a global error signal can be generated at one of the
digital outputs (terminals X3/16 and X3/17) – see online help for the setup software PDrive.
These signals can be used by the higher-level control system to finish the current PLC cycle or
to shut down the drive (with additional brake or similar).
On a PMCprimo Drive3 additionally a plaintext message will be generated and an error variable
is set, too. This allows the user to define a special error program which will be executed.
Devices with activated (holding-)"Brake" function use a special sequence for switching off the
output stage (
The "Stop" functions are defined in EN 60204 (VDE 0113), Paras. 9.2.2, 9.2.5.3.
There are three categories of stop functions:
Every machine must be equipped with a Category 0 stop function. Stop functions to Categories
1 and/or 2 must be provided if the safety of functional requirements of the machine make them
necessary.
You can find further information and implementation examples in the Application Note "Stop
and Emergency Stop Functions".
Installation manual for PMC tendo DD5/PMCprimo Drive3
p. 98) then the output stage of the servo amplifier is switched off and the
p. 24).
Shutdown by an immediate switch-off of the energy supply to the
Category 0:
drive machinery (i.e an uncontrolled shutdown);
A controlled shutdown, during which the supply of energy to the drive
Category 1:
machinery is maintained as long as shutdown is being carried out,
and only interrupted when standstill has been reached;
A controlled shutdown, during which the supply of energy to the drive
Category 2:
machinery is maintained.
Page 27
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