Emergency Stop According To En 60204 - KEB COMBIVERT F6 Instructions For Use Manual

9 | Safety function STO
NOTICE
DANGER
40
Regular electromechanical equipment is subject to wear and tear. Using the STO
function eliminates the need for these items of equipment and reduces mainten-
ance costs.
Characteristics for
– Energy supply for the rotating field of the motor is interrupted (motor coasts
down).
– Use when monitoring for standstill is not required.
– Unintentional start-up of the motor is prevented.
– No galvanic isolation of the motor from the drive controller DC link.
The safety functions meet the requirements of performance level e
and SIL 3 (IEC 61508
Safety functions protect persons from mechanical damage when project planning,
installation and operation are carried out properly.
What can the STO function do in relation to
– Emergency stop
voltage may still be applied.
– Emergency stop
switches off the mains voltage!

9.2 Emergency stop according to EN 60204

By using suitable safety switchgear, the STO function can achieve stop categories
0 and 1 according to
– Stop category 0
"uncontrolled stop", i.e. stop by immediately switching off the energy to the
drive elements.
– Stop category 1
"controlled stop", i.e. the energy to the drive elements is maintained to achieve
the stop. The energy is only interrupted when standstill is reached.
Emergency stop according to
modes of the drive module. Resetting emergency stop must not lead to uncon-
trolled start-up of the drive.
Automatic restart when STO is no longer triggered.
Unpredictable consequences for personnel and machine.
ü In order to comply with
a) Ensured by external measures that the drive restarts only after confirmation.
Motor coast in the event of a fault
Danger to persons
ü If there is a danger to persons after the motor control has been switched off by
STO:
a) Block access to the hazardous area.
b) Wait until the drive stops.
STO :
and IEC 62061 ).
EN 60204-1
can be realised by the STO
can only be realised in conjunction with a mains contactor that
EN 60204-1 in the system ().
EN 60204-1 must be functional in all operating
EN 60204-1, observe the following:
(ISO 13849-1
?
function, because the mains
ma_dr_f6-cu-k-inst-20144795_en
)