in accordance with the requirements of EN ISO 13849-
1:2008.
When fitted with a unit for scoring the scoring saw blade
spindle drive motor shall not be capable of being started
before the main saw blade drive motor.
For electrically operated machines the requirements of
EN 60204-1:2006, 9.2.5.2 but the exceptions described in
EN 60204-1:2006, 9.2.5.2 are not relevant.
The safety related part of the control systems (also see
5.2.1) for interlocking between starting of the main saw
blade drive motor and starting of the scoring saw blade
spindle drive motor shall be at least PL=c in accordance
with the requirements of EN ISO 13849-1:2008 (see also
5.2.6, 5.3.7).
Verification: By checking the relevant drawings and/or
circuit diagrams, inspection of the machine and relevant
functional testing of the machine.
The machine shall be fitted with a stop control where by
all saw blades and – if fitted – a demountable power feed
unit can be stopped (see also 5.2.8). The stopping shall
include disconnection from energy supply of the
corresponding actuators unless STO in accordance with
EN 61800-5-2:2007 is used.
Machines where the emergency stop control device (see
5.2.5) is not required the normal stop control device shall
not be shrouded.
For normal stopping of PDS(SR) (power drive system,
safety related) see 4.2.2.2 "safe torque off (STO)” and
4.2.2.3 “safe stop 1 (SS1)” of EN 61800-5-2:2007.
If the machine is fitted with a spring operated mechanical
brake this stop control shall be of category 0 in
accordance with the requirements of EN 60204-1:2006,
9.2.2.
If the machine is fitted with any other type of brake, e.g.
electrical brake, this stop control shall be of category 1 in
accordance with the requirements of EN 60204-1:2006,
9.2.2.
Where a category 1 stop control is fitted, the stopping
sequence shall be:
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