Pilz PSEN enc s2 eCAM User Manual download pdf (Page 24)

Installation / Preparation for commissioning

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland

Telefon +49 711 3409-0, Telefax +49 711 3409-133, E-Mail: [email protected]

English

• In particular, sources of conducted interference such as frequency-

controlled drives (circuit feedback) have a negative effect on the function of

the measuring system.

 The 24 V power supplies must comply with SELV/PELV.

 The shielding effect of cables must also be guaranteed after

installation (bending radius!) and after changing connectors. If in

doubt, use a more flexible cable with a higher current carrying

capacity.

 For the drive/motor cabling, use a 5-core cable on which the PE

conductor is separate from the N-conductor (TN network). This will

largely prevent equipotential bonding currents and the development of

interference.

 Shielded, stranded data cable must be used to make the system highly

resistant to electromagnetic interference. Where possible, the shield

should be connected to the protective earth at both ends and with

good conductivity using large screen clamps. Only if the machine earth

is subjected to heavy interference in comparison with the control

cabinet earth should the shield only be earthed at one end in the

control cabinet.

 Equipotential bonding measures must be provided for the whole of the

plant’s processing chain.

 Power and signal cables should be laid separately.

 Comply with the manufacturer’s instructions when installing converters

and shielding the power cables between the frequency converter and

motor.

 The energy supply should be adequately dimensioned.

 The measuring system should be separated or segregated from

potential interfering transmitters.

 Use of filters should be envisaged.

 Internal and external protection against lightning should be considered.

 The plant installer must adapt the cable routing to local conditions.

Compliance with the relevant standards and directives is essential to

guarantee safe, interference-free operation!

In particular, compliance with the applicable EMC Directive and shielding /

earthing guidelines should be guaranteed!

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Pilz PSEN enc s2 eCAM User Manual Page 24