3. Installation
3-17
Festo P.BE-VIDN-03-8A-GB 0003NH
Potential equalization
The valve terminal has two earth connections for potential
equalization:
–
the load voltage connection (pin 4)
–
the left-hand side of the housing (M4 thread)
Please note
S
Always connect the earth potential to pin 4 of the load
voltage connection.
S
Connect the earth connection of the left-hand side of the
housing to the earth potential with low impedance
(short cable with large cross-sectional area).
S
By means of low-impedance connections, make sure
that the housing of the valve terminal and the earth con-
nection at pin 4 have the same potential and that there
are no equalizing currents.
You will thereby avoid faults due to electromagnetic in-
fluences and fulfil electromagnetic compatibility in com-
pliance with EMC guideline 89/336/EWG.
Connection examples
Please observe the following when connecting the load volt-
age supply:
S
Fuse the load voltage supply for the valves externally with
maximum 6 A against short circuit/overload.
S
Observe the tolerance of 24 V DC ± 10 %.
S
Connect both earth connections for potential equaliz-
ation. Select here suitable cross-sectional areas for the
cables in order to prevent equalizing currents.
Содержание 03-B
Страница 2: ......
Страница 4: ...Contents and general safety instructions II Festo P BE VIDN 03 8A GB 0003NH...
Страница 14: ...Contents and general safety instructions XII Festo P BE VIDN 03 8A GB 0003NH...
Страница 15: ...System summary 1 1 Festo P BE VIDN 03 8A GB 0003NH Chapter 1...
Страница 25: ...Fitting 2 1 Festo P BE VIDN 03 8A GB 0003NH Chapter 2...
Страница 35: ...Installation 3 1 Festo P BE VIDN 03 8A GB 0003NH Chapter 3...
Страница 59: ...Commissioning 4 1 Festo P BE VIDN 03 8A GB 0003NH Chapter 4...
Страница 77: ...Diagnosis and error treatment 5 1 Festo P BE VIDN 03 8A GB 0003NH Chapter 5...
Страница 90: ...5 Diagnosis and error treatment 5 14 Festo P BE VIDN 03 8A GB 0003NH...
Страница 91: ...Technical Appendix A 1 Festo P BE VIDN 03 8A GB 0003NH Appendix A...
Страница 118: ...A Technical Appendix A 28 Festo P BE VIDN 03 8A GB 0003NH...