Phoenix Contact IB IL AO 4/U/0-10-ECO Handleiding (190 Pagina's)

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11.3.2 Protective ground (PE) (Inline)

Protective ground is a low-impedance current path that minimizes the risk to the operator

in the event of an error (including a high voltage and/or current error between an electri-

cal circuit and ground).

In Inline terminals, protective ground is used outside the SELV.

WARNING: Disregarding this warning may result in the loss of electrical safety

Every power terminal of the 120 V AC or 230 V AC area must be connected to the

DIN rail with low impedance, otherwise no protection is provided.

The PE (protective ground) potential jumper is led from the power terminal of the 120 V

AC or 230 V AC area through this entire area to the next power terminal.

Power-level terminals are connected to PE using the power connector and voltage con-

tinuation between power-level terminals is ensured using the power bridge.

Figure 11-10 Additional grounding of a bus coupler and protective ground connection

(Example: IL PB BK DI8 DO4-PAC)

Figure 11-10 shows the additional grounding and protective ground connection

using the example of the IL PB BK DI8 DO4-PAC bus coupler. Connect the addition-

al grounding and protective ground to your devices according to the terminal-spe-

cific documentation.

1

D

DO1 AC

1

2

0

D

I1

1

D

1

2

0

D

I1

1

D

L

1

2

0

P

W

R

I

N

1

2

D

DI 8

1

2

1

2

1

2

PROFIBUS

PROFIBUS DP

X1

IL PB

B

K

D

I8

D

O

4

-P

A

C

O

rd

er-N

o.: 2

8

7

8

9

2

6

0

2

4

6

8

x10

10

12

0

2

4

6

8

9

x1

UL

US

UM

BF

FS

FN

PWR

DE

O1

1

3

2

4

I1

1

3

2

4

I2

75

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