AS 4024.3201:2018 pdf free.Safety of machinery Part 3201: Plastics and rubber machines—Blow moulding machines—Safety requirements.
5.1.5.2 Electro-sensitive protecting equipment (ESPE) ESPE may be used if the ejection of hot plastics is prevented by design of the machine. The ESPE shall be in accordance with EN 61496-1:1997 or EN 61496-3:2001 and be positioned according to EN 999:1998. The ESPE shall become effective as soon as the blow moulding machine is switched on. It shall not be possible to reach the danger area around, above or beneath the ESPE. The end of an interruption of the ESPE shall not automatically initiate any further movement. A new start command shall be required.
5.1.6 Movements caused by gravity Machine parts which can have a dangerous movement under gravity shall be provided with an automatic blocking device which operates as soon as the corresponding movable guard is opened or ESPE is interrupted. The blocking shall remain active until a new start command is given. The required performance level for this safety function shall be PLrC.
5.1.7 Electrical hazards and hazards due to electromagnetic interference The electrical equipment shall be in accordance with EN 60204-1 :2006. Protection against direct contact shall be in accordance with 6.2 of EN 60204-1 :2006, with minimum degrees of protection in accordance with EN 60529:1991. Protection against indirect contact shall be in accordance with 6.3 of EN 60204-1 :2006. Electronic control systems shall be designed and installed so as to be protected from electromagnetic interference and be stable when exposed to electrical system operation or failure in accordance with EN 61000-6-2:2001.
5.2 Mechanical hazards related to power operated movements during production
5.2.1 Basic requirements
Access to power operated movements during production shall be prevented by safety distances (see 5.1.2) or by interlocking guards, where necessary completed by fixed guards.
Where frequent access is necessary to the area of movement of the moulds (see 3.2), e.g. for semi-automatic operation, the interlocking guards may be replaced by light curtains in accordance with type 4 of
EN 61496-1:1997.
The required performance level of the safety-related parts of the control circuit associated with each protective device is specified in Table 1 for each dangerous movement or part to which access is possible from any normal working position. The required performance level is specified for:
— automatic or semi-automatic machines; and
— machines with interlocking guards, ESPE or other safeguards.AS 4024.3201 pdf download.