2. Technical specificationsSafety instructions for electrical drives and controllers
Festo.P.BE-CMMS-ST-HW-EN 0903b
17
Ensure that the external power supply of the controller (24 V) is
switched off.
The intermediate circuit or the load voltage must always be
switched off before the 24 V control voltage is switched off.
Warning
Other work in the vicinity of the machine must only be carried
out when the AC or DC supply is switched off and locked.
Switched-off final stage or switched-off controller enable are not
suitable locking conditions. In the event of a fault, this could lead
to unintentional movement of the drive.
Warning
Carry out commissioning with a free-running motor, in order to
avoid mechanical damage, e.g. due to incorrect direction of
rotation.
Warning
Electronic devices are never fail-proof.
The user is responsible for ensuring that his system is brought into
a safe state if the electric device fails.
Warning
DANGER!
The stepping motor controller and, in particular, the braking
resistor can become very hot, and can cause serious burns if
touched.
2.4.3
Protection aganst touching electric components
This section concerns only devices and drive components with voltages over 50 V. It is
dangerous to touch components with voltages of more than 50 V, as this can cause an
electric shock. When electric devices are operated, certain components in these devices
are always under dangerous tension.
Warning
Dangerous voltage!
High voltage!
Danger of death or serious bodily injury due to electric shock!