DK Digital CDB-700 Instrukcja Użytkownika Pobierz pdf (Strona 6)

Page 6 of 108

Safety instructions

Important information

Description of the various signs used in this manual.

Warning!

Failure to comply with these instructions may result in accidents involving serious personal injury.

Failing to follow these instructions can result in the product being damaged or destroyed.

Please read the following safety information carefully.

It is important for everyone who is to connect, install or use the systems to have the necessary information and access to this User Manual.

Please be advised that LINAK has taken precautions to ensure the safety of the actuator system. It is the responsibility of the manufacturer/OEM to

get the overall approval for the complete application.

LINAK recommends that the actuators should be used in push applications, rather than pull applications.

LINAK actuators are not to be used for repeated dynamic push-to-pull movements. This cause extra strain to the actuator and can give safety

considerations, the consequence being possible damage to the actuator, e.g.:

• Piston rod eye/back ﬁxture cracks due to fatigue.

• Extra play as parts are deformed.

• Noise as internal parts are moving due to the shifting force direction.

Therefore, if repeated dynamic push-to-pull movements are essential for the application, perform tests to validate the performance.

Moreover, consider strengthening the actuator (e.g. using a steel piston rod eye) – contact LINAK A/S if in doubt.

If the actuator is used for push in an application where personal injury can occur (e.g. patient hoists), a special safety nut must be used.

In general the LA12 actuator is not to be used in push/pull situations.

Relative or absoulte positioning for the PLC connection

Relative positioning - By means of a magnetic disc and a hall sensor in the PLC-actuator, it is possible to have encoder pulses with an accuracy down

to 0.5 mm per pulse. This signal can be connected directly to the PLC’s standard digital input.

Absolute positioning - As an alternative the user can have a 0-10V analogue signal from a potentiometer integrated in the PLC-actuator (max. stroke

100 mm). This signal can be connected directly to an analogue PLC input.

Low energy consumption

During recent years energy consumption has been more and more important to the end users of production equipment. Compared to pneumatic

systems the energy consumption is considerably lower.

Except for LA34 which can be used for both push or pull applications, if mounted with safety nuts in both directions.

Persons who do not have the necessary experience or knowledge of the product/products must not use the product/products. Besides, persons with

reduced physical or mental abilities must not use the product/products, unless they are under surveillance or they have been thoroughly instructed in

the use of the apparatus by a person who is responsible for the safety of these persons.

“Do not remain under the application during operation or operate the application when assembling/disassembling moving parts”.

Moreover, children must be under surveillance to ensure that they do not play with the product.

Classiﬁcation:

The equipment is not suitable for use in the presence of a ﬂammable anesthetic mixture with air or with oxygen or nitrous oxide.

Electromagnetic compatibility

LINAK Actuator Systems bear the CE marking as an attestation of compliance with the EMC Directive 2004/108/EC; the systems are designed to meet

all requirements of applicable standards and have been tested to such requirements.

It is unlikely that the user will encounter problems with the Actuator System because of inadequate electromagnetic compatibility.

However, electromagnetic immunity is always relative and standards anticipate environments of usage. If the user notes unusual behaviour of the

Actuator System, in particular if such behaviour is intermittent and associated with the standing right next to mobile phones, microwaves and radio

broadcast masts, this could be an indication of electromagnetic interference. If such behaviour occurs, try to move the Actuator System further away

from the interfering equipment.

Electromagnetic emission is evaluated on a system level, with the actuator either connected to a LINAK Control Box and accessories or to some

customer built electronic control circuitry. If used in other constellations and with external power supply, precautions may be taken to avoid

conducted emission.

...to be continued

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