2. Safety instructions for electric drives and controllers
Festo P.BE-CMMP-FHPP-DN-SW-EN en 0708NH 15
Warning
Before carrying out maintenance work, make sure that the power
supply is switched off and locked and that the intermediate circuit
is discharged.
Warning
The external or internal braking resistance is activated and can
carry a dangerous intermediate circuit voltage for up to approx.
5 minute after the motor controller has been switched off.
This can cause serious bodily injury or even death if it is touched.
Warning
Proceed carefully with mounting. Make sure during mounting as
well as later during the operation of the drive that no drilling
shavings, metal dust or mounting parts (screws, nuts, pieces of
wire) can fall into the motor controller.
Make sure also that the external voltage supply of the controller
(24 V) is switched off.
The intermediate circuit or the mains voltage must always be
switched off before the 24 V controller supply 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.
Exceptions are drives with the safety function "Safe stop“ as per
EN 954-1 KAT 3.
Warning
Carry out commissioning with a free-running motor, in order to
avoid mechanical damage, e.g. due to incorrect direction of
rotation.
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