BS EN 691-1-2012 pdf download.Safety of woodworking machines Part 1 : Common requirements.
For SRP/CS as part of a safety component oc protective device for which a specific standard exists, all
requirements of the specific standard apply.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine.
5.2.1.4 Safety-related embedded software (SRESW)
SRESW of the SRP/CS embedded software shall be in accordance with EN ISO 13849-1:2008, 4.6.1 and
4.6.2.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine.
5.2.1.5 Safety-related application software (SRASW)
SRASW of the SRPICS shall be in accordance with EN ISO 13849-1:2008,4.6.1 and 4.6.3.
Verification: By checking the relevant drawings and/or circuit diagrams. inspection of the machine.
5.2.1.6 Verification that achieved PL meets required PL
Verification that PL achieves at least the required PL shall be according to EN ISO 13849-1:2008, 4.7.
Verification: By checking the relevant documentation,
5.2.1.7 Validation
SRP/CS shall be validated according to EN ISO 13849-1:2008, Clause 8 (see also EN ISO 13849-2:2008).
Verification: By checking the relevant documentation.
5.2.1.8 Environmental conditions
The environmental conditions SRPICS are exposed to, e.g. dust, fumes and/or gases, shall be taken into account. The SRP/CS shall fulfil the environmental requirements of the specific standard, if available, otherwise EN 50178:1997 applies, also for electromechanical components.
The SRP/CS shall fulfil the EMC requirements of the specific standard, If available, otherwise the requirements of EN 50370-2:2003 apply.
See also 5.4.9 for the EMC requirements on the complete machine.
Verification: By checking the relevant drawings and/or circuit diagrams. inspection of the machine.
NOTE For electrical components characterisiics the information from the component manufacturer can be useful.
5.2.1.9.1 General
The control system of safeguards shall be in accordance with the specific standards for safeguards and shall be designed to achieve a PL as specified In 5.2.1.9.2 to 5.2.1.9.7.
Verification of PL for all safeguards devices, see 5.2.1.6.
Verification: By checking the relevant drawings andior circuit diagrams and inspection of the machine.
5.2.1.9.2 Hold-to-run function
The hold-to-run function shall be designed to achieve at least PL=c.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation
For electrical hold-to-run control devices, see EN 60204=1:2006 and EN 60204-1 :2006/Al :2009, 9.2.6.1.
NOTE For electrical components characteristics the information from component manufacturer can be useful.
5.2.1.9.3 Enabling device
The enabling device function shall be designed to achieve at least PLc.
Verification: By checking the relevant drawings and/or circuit diagrams, calculation.
NOTE For electncal components characteristics the information from component manufacturer can be useful.
5.2.1.9.4 Two-hand control device
Two-hand control devices shall be as a minimum in accordance with type Ill A as defined in
EN 574:1996+A1:2008 (see 5.3.5.2.2, 5.3.8). At least PL=c shall be achieved.
Verification: By checking the relevant drawings and/or circuit diagrams. calculation.
NOTE For electrical components characteristics the information from component manufacturer can be useful.
5.2.1.9.5 Pressure sensitive protective equipment
Pressure sensitive mats shall comply with requirements of EN 1760-l:1997+A1:2009,
Trip bars shall comply with requirements of EN 1760-2:2001+A1:2009.
Pressure sensitive bumpers, plates, wires and similar devices shall comply with requirements of
EN 1 760-3:2004+A1 :2009.
5.2.1.9.7 Movable guards
Movable guards shall be interlocked to prevent the start of hazardous machinery functions until the guards are closed and they shall generate a stop command whenever the guards are no longer closed.
Where it is possible for an operator to reach the danger zone before the risk due to the hazardous machinery functions has ceased, the guards shall be additionally associated with a guard locking device that keeps the guards closed and locked until the risk of injury from the hazardous machinery functions has ceased.
Where the moveable guard prevents access to the tool(s) or other hazardous machines parts, for interlocking and interlocking with guard locking at least PL=c shall be achieved (see Table 2).
NOTE I For this safety functions usually category 1 ol EN ISO 13849-1:2008 is applied ii the control circuits are hardwired and category 3 of EN ISO 13849-1:2008 if the control circuits Include electronic components.
See also 5.3.5.1.2.
Veriflcat,on: By checking the relevant drawings and/or circuit diagrams, inspection of the machine, measurement and relevant functional testing of the machine.
NOTE 2 For electrical components characteristics the information from component manufacturer can be useful
5.2.1.10 Starting
Before starting or restarting of the machine all relevant safeguards shall be in place and functional. This is achieved by the arrangements described in 5.3.6.1. Start or restart shall only be possible by actuation of the start control device provided for that purpose. The control device shall be protected against unintended actuatlon e.g. by a shrouded control device.
Starting of power feed shall only be possible when the tool spindle(s) involved in machining is/are running at the intended speed(s).
This may be achieved by a time delay device having a time delay of at least the maximum run-up time and which achieves at least PLc,
For the safety related part of the control system for start-up (starting) or restarting and for the interlocking arrangements at least PLc shall be achieved according to 5.2.1.2, Table 2 (see 5.3.5, 5.3.6, 5.3.9). The safety functions shall be designed in accordance with the requirements of EN ISO 13849-1:2008.
NOTE For this safety functions usually category 1 of EN ISO 13849-1:2008 is apphed if the control circuits are hardwired and category 3 of EN ISO 13849-1:2008 if the control circuits include electronic components.
For electrically operated machines see EN 60204-1:2006 and EN 60204-1:2006/Al :2009, 7.5 and 9.2.5.2.BS EN 691-1-2012 pdf download.

Share on Facebook

Post on X

Follow us

Save