3.2.4 Connecting the electric cables
PLEASE NOTE
Use only power units which guarantee reliable isola-
tion of the operating voltages as per IEC 742 / EN
60742 / VDE 0551 with at least 4 kV isolation resist-
ance (protected extra low voltage, PELV). Switch
power packs are permitted if they guarantee reliable
isolation in accordance with EN 60950 / VDE 0805.
Remark:
Protection against electric shock (protection against di-
rect and indirect contact) is guaranteed on Festo valve
terminals by the use of PELV power units in accord-
ance with EN 60204-1 / IEC 204. The valve terminals
must be earthed in order to ensure their function (e.g.
EMC).
Earthing/grounding the CPA valve terminal with
CP or AS-i connection
PLEASE NOTE
Earth/ground your CPA valve terminal.
•
Connect the earth cable of the left-hand end plate
to the earth potential with low impedance (short
cable with large diameter).
You will then avoid electromagnetic interference.
3. Installation
3-16
CPA... 9808A
Содержание CPA VI Series
Страница 2: ......
Страница 4: ...Order no 173 515 Title MANUAL Designation P BE CPA GB II CPA 9808A...
Страница 15: ...Chapter 1 System summary 1 System summary CPA 9808A 1 1...
Страница 29: ...Chapter 2 Fitting 2 Fitting CPA 9808A 2 1...
Страница 35: ...Kapitel 3 Installation 3 Installation CPA 9808A 3 1...
Страница 54: ...3 Installation 3 20 CPA 9808A...
Страница 55: ...Chapter 4 Commissioning 4 Commissioning CPA 9808A 4 1...
Страница 69: ...Chapter 5 Maintenance and conversion 5 Maintenance and conversion CPA 9808A 5 1...
Страница 97: ...Technical appendix A Technical appendix CPA 9805NH A 1...